The Bristol Bombay was a British troop transport aircraft adaptable for use as a medium bomber flown by the Royal Air Force (RAF) during the Second World War.

The Bristol Bombay was built to Air Ministry Specification C.26/31 which called for a monoplane bomber-transport aircraft to replace the Vickers Valentia biplane in use in the Middle East and India. The aircraft was required to be capable of carrying 24 troops or an equivalent load of cargo as a transport, while carrying bombs and defensive guns for use as a bomber. This dual-purpose design concept was common to British pre-war designs. Other entries for the specification were the Armstrong Whitworth A.W.23 and the Handley Page HP.52.

Bristol's design, the Type 130, was a high-wing cantilever monoplane of all-metal construction. Bristol's previous monoplane design, the 1927 Bagshot, had suffered from lack of torsional rigidity in the wings leading to aileron reversal. This led to an extensive research program at Bristol which resulted in a wing design with a stressed metal skin rivetted to an internal framework consisting of multiple spars and the ribs. This was the basis of the Bombay's wing, which had seven spars, with high-tensile steel flanges and alclad webs. The aircraft had a twin-tail and a fixed tailwheel undercarriage.

The aircraft's crew consisted of a pilot, who sat in an enclosed cockpit, a navigator/bomb-aimer, whose working position was in the nose, and a radio-operator/gunner, who divided his time between the radio operator's position behind the cockpit and a gun turret in the nose. When the aircraft was operated as a bomber, an additional gunner was carried to man the tail gun position. In the prototype, this position was equipped with a Lewis gun on a Scarff ring but in production aircraft, both gun positions were hydraulically-operated gun turrets each armed with a Vickers K machine gun. Eight 250-pound (110 kg) bombs could be carried on racks under the fuselage.

A prototype Type 130 was ordered in March 1933 and first flew on 23 June 1935, powered by two 750 horsepower (560 kW) Bristol Pegasus III radial engines driving two-bladed propellers. Testing was successful and an order for 80 was placed as the Bombay in July 1937. These differed from the prototype in having more powerful (1,010 hp (750 kW)) engines driving three-bladed Rotol variable-pitch propellers, discarding the wheel spats fitted to the undercarriage main wheels in the prototype. As Bristol's Filton factory was busy building the more urgent Blenheim light bomber, the production aircraft were built by Short & Harland (owned by Short Brothers and Harland and Wolff) of Belfast. The complex nature of the Bombay's wing delayed production at Belfast. The first Bombay was not delivered until 1939 and the last 30 were cancelled.

No 1 Air Ambulance Unit (No 1 AAU) of the RAAF was formed at Laverton, VIC on 15 February 1941 and was one of a small number of RAAF units designated to operate under RAF control. Amongst other types, it operated the Bombay from February 1943 to February 1944 when the unit was withdrawn from the Western Desert. The unit commenced operations from Gaza in August 1941 initially operating de Havilland DH.86, Bristol Bombay, Lockheed Lodestar and Grumman Goose types. It supported Commonwealth units during the North African campaign, and operated during the Tunisian campaign and the Allied invasion of Sicily. The Bombays were received from No 216 Squadron RAF, which re-equipped with the Vickers Wellington. However, the Bombay was slow, suffered mechanical problems, and made its last evacuation operation in November 1943. The survivors of the type were used to carry medical supplies up until January 1944.

Bombays evacuated over 2,000 wounded during the Allied invasion of Sicily in 1943, and one crew was credited with carrying 6,000 casualties from Sicily and Italy before the type was finally withdrawn from use in 1944.

Variants

Type 130 : Prototype.
Type 130A Bombay Mk I : Twin-engined medium bomber and troop transport aircraft. Original designation Type 130 Mark II.
Type 137A Proposed civil transport version. Unbuilt.
Type 137B Combi version of Type 137A. Unbuilt.
Type 144 Unbuilt development with retractable undercarriage proposed for Specification B.4/34 (won by Handley Page Harrow).

A total of 51 units were built.

The Bristol Brigand was a British anti-shipping/ground attack/dive bomber aircraft, developed by the Bristol Aeroplane Company as a replacement for the Beaufighter. A total of 147 were built and were used by the Royal Air Force in Malaya during the Malayan Emergency and Kenya until replaced by the de Havilland Hornet in Malaya and the English Electric Canberra jet bomber elsewhere.

The Bristol Type 164 was the outcome of the 1942 Air Ministry specification H.7/42 calling for a faster development of the Beaufighter for long-range torpedo work and anti-shipping strikes. The Bristol design team under Leslie Frise, used the wings, tail and undercarriage of the Buckingham with a new fuselage of oval cross-section. The pilot, navigator/bomb aimer and radio-operator/gunner were grouped in the forward cockpit. In spite of the official change in its role to a bomber, the first eleven Brigands off the production line were completed as torpedo bombers. These early aircraft served with RAF Coastal Command from 1946–1947 before being converted to bombers.

In 1946 the first 11 production torpedo-fighter (TF.1) aircraft were delivered to 36 Squadron and 42 Squadron, RAF Coastal Command, which had no need for coastal strike aircraft at the time so the torpedo-fighters were returned to Filton and converted to light bombers (B.1). The first B.1s were delivered in 1949 to 84 Squadron at RAF Habbaniya to convert from the Beaufighter and 5 Squadron in Aden, a Hawker Tempest unit. The first unit to convert from Beaufighters to the Brigand was 45 Squadron, based at RAF Station Tengah on the Island of Singapore, operating in support of British forces against the Communist Guerrillas, engaged in an insurgency in Malaya. The first Brigand was flown to Tengah from RAF St Athan in November 1949, a 16-day trip.

After test flights, the first combat operation was conducted by the Brigand, piloted by Flight Lieutenant Dalton Golding and crewed by radio/radar operator Peter Weston, together with four Beaufighters of No. 45 Squadron against CT targets in the jungle west of Kluang, Malaya on 19 December 1949. The Brigand carried three rockets, and one 500 lb (230 kg) and two 1,000 lb (450 kg) bombs. The operation was successful and No. 45 Squadron soon completed its conversion to the Brigand. Brigands of 45 Squadron and soon 84 Squadron were routinely engaged in strikes against Communist Insurgent targets throughout Malaya, direct and in close support of ground forces, as well as providing air cover as needed to convoys on the ground, against possible ambushes.

Problems with the Brigand became apparent during operations in Malaya, with undercarriages failing to lower. This was traced to rubber seals in the hydraulic jacks deteriorating in the hot, humid climate. Just as this problem was being resolved another problem arose, more serious because it led to fatalities: a propensity for aircraft damage and loss during strafing runs employing the four 20 mm cannon. An accumulation of gases in the long cannon blast tubes, which ran under the cockpit, was igniting through use of high-explosive shells. This in turn severed hydraulic lines, which would burn. This was cured by drastically reducing ammunition loads and using only ball rounds. The Brigand also had a tendency to shed a propeller blade, leading to complete propeller failure; this in turn would lead to the engine being wrenched off the wing and an inevitable crash. The problem was found to be caused by corrosion in the propeller locking rings. More frequent maintenance helped alleviate this problem.

As the Brigand became subject to more restrictions both unit commanders had serious doubts about the continued use of the aircraft. It was decided to continue operating them, since as long as thorough maintenance was carried out it was felt that nothing else could go wrong. Another design flaw arose in the leather bellows used to deploy the air brakes during dives. In the tropical climate, the leather would rot, causing the brakes to fail. This led to Brigands losing wings in dives due to excessive airspeed or rotation as only one brake deployed. When this problem was discovered the air brakes of all Brigands were wired shut, decreasing the aircraft's dive bombing capabilities.

No. 45 Squadron converted to de Havilland Hornets in January 1952 while 84 Squadron was disbanded in February 1953. Soon after this, the Brigands were grounded and withdrawn from service. Brigands were also used operationally over Aden by 8 Squadron from 1950 to 1952, when it was found that the Brigand mainspars were suspect; the Brigands were replaced by de Havilland Vampires. In 1950 nine Brigand T.4 radar trainers were delivered to 228 OCU at RAF Leeming to train radar navigators on the use of Airborne Interception radar. A further variant with a different radar installation was Brigand T.5 which were converted from B.1s and later all the T.4s were also modified to T.5 standard. The last operator was 238 OCU at RAF North Luffenham which disbanded in March 1958.

Variants

The first to be built was the Brigand I or Brigand TF 1 and these entered service with RAF Coastal Command No. 36 Squadron and No. 42 Squadron. They were subsequently rebuilt to become the Brigand B 1, notable as both the first purpose-built multi-role bomber for the RAF and its last piston-engined bomber. It could carry either a 22 in (560 mm) torpedo under the fuselage with two 500 lb (230 kg) bombs beneath the wings, one 2,000 lb (910 kg) or two 1,000 lb (450 kg) bombs beneath the fuselage and had underwing racks for 16 RP-3 60 lb (30 kg) rocket projectiles.

Type 164 Brigand
Four prototypes originally with Centarus VII engines.
Brigand TF.1
Production torpedo-bomber variant, 11 built later converted to B.I.
Brigand B.1
Bomber variant, rear gun removed and external bomb racks and rails for rockets added, 106 built and 11 conversions from TF.1

Brigand MET.3 of 1301 Flight RAF at RAF Luqa, Malta, in June 1949
Type 165 Brigand II
Proposed training variant with dual controls, not built, as the Buckmaster, a dual-control conversion of the Bristol Buckingham was used for Brigand training instead.
Brigand MET.3
Unarmed meteorological reconnaissance variant, 16 built.
Brigand T.4
Trainer variant, used to train airborne interception (AI) radar operators, nine built, survivors to T.5 standard.
Brigand T.5
Improved training version, which like the T.4 before it, was used to train airborne interception (AI) radar operators, conversions from B.1 and T.4.

The Bristol Type 163 Buckingham was a British Second World War medium bomber for the Royal Air Force (RAF). Overtaken by events, it was built in small numbers and was used primarily for transport and liaison duties.

In early 1939 Bristol suggested a bomber variant of the Beaufighter with their Hercules engines. British policy at the time was for medium bombers to be obtained from the US allowing British industry to concentrate on heavy bomber designs; nonetheless a design was requested preferably based on an existing aircraft. This meant working with the Beaufighter or Beaufort. Bristol worked on their design first as the Bristol Type 161 then the Type 162 Beaumont.

Air Ministry specification B.7/40 called for a medium bomber to replace the Blenheim. The specification stipulated a speed of at least 300 mph at 5,000 ft, a normal load of 1,000 lb of bombs and a centre turret armed with at least two 0.5 inch (12.7 mm) machine guns. Only one manufacturer (Armstrong Whitworth) tendered a full design but it did not meet with approval. So when Bristol brought their Type 162 ("tentatively named Beaumont"), which was well matched to B.7/40, to the Air Staff, the company received a request to complete a mockup in 1940 and then a confirmed contract for three prototypes in February 1941. The Beaumont was based on the rear fuselage and tail of a Beaufighter, with a new centre and front fuselage. The armament was a mid-upper turret with four machine guns, with four more machine guns firing forward and two firing to the rear.

Construction began in late 1940, with a new Air Ministry Specification B.2/41 to be written around it. Changes in the requirements, removing dive bombing and "direct army support" which incoming US bombers were expected to be capable of and increasing the performance to allow for the future, meant the Beaumont would no longer suffice. The changes in performance (requiring a bomb load of 4,000 lb, a speed of 360 mph and a range of 1,600 miles) meant a redesign by Bristol to use the Bristol Centaurus engine.

The Bristol redesign with a larger wing and the more powerful engines was the Type 163 Buckingham. It had gun installations in the nose, dorsal and ventral turrets. Generally conventional in appearance, one unusual feature was that the bomb-aimer/navigator was housed in a mid-fuselage ventral gondola, resembling those on the earlier German Heinkel He 111H and American Boeing B-17C and -D in appearance. This was part of an attempt to give all the crew positions unobstructed views and access to each other's positions. The bomb bay could hold a 4,000 lb, two 2,000 lb, four 1,000 lb or six 500-lb bombs. The rear of the gondola had a hydraulically powered turret with two 0.303 Browning machine guns. The Bristol-designed dorsal turret carried four Brownings. A further four fixed, forward-firing Brownings were controlled by the pilot. Following more changes, specification B.2/41 was replaced by B.P/41. An order for 400, at an initial rate of 25 per month, was made with deliveries expected in March 1943 but Bristol were still concerned that this not a reasonable scale and would prove expensive, and as such complained to MAP about poor planning. The first flight took place on 4 February 1943. During testing, the Buckingham exhibited poor stability which led to the enlargement of the twin fins, along with other modifications.

Variants

Type 163 Buckingham
Prototypes with two Centaurus IV engines, four built.
Type 163 Buckingham B1
Production variant first flown 12 February 1944 with Centarus VI or XI engines, 400 ordered but reduced first to 300 then to 119, with only 54 built as bombers.
Type 163 Buckingham C1 (Specifications below)
Residual production completed as fast courier transport with four-passenger seats and removal of armour and armament and increased fuel tankage, 64 built.
Type 164 Brigand
Torpedo bomber variant using Buckingham wings and tails and new fuselage.
Type 165 Brigand II
Trainer variant of the Brigand, not built.
Type 166 Buckmaster
Trainer variant of the Buckingham.
Type 169
Proposed photo-reconnaissance variant of the Buckingham, not built.

The Bristol Buckmaster was an advanced British training aircraft operated by the Royal Air Force during the 1950s.

By 1945, there was a serious gap in performance between the so-called advanced trainers in use – such as the Avro Anson, Airspeed Oxford, dual-control Bristol Blenheim and Lockheed Hudson – and the combat aircraft which the pilots would be expected to fly on graduation.

The Bristol company's response to Air Ministry Specification T.13/43 was the Type 166 which was based on the Buckingham with a new wider front fuselage to allow side-by-side seating for an instructor and trainee and room for a radio operator. All armament and armour and military equipment was also removed.

The Buckmaster was a propeller-driven, twin-engine mid-wing aircraft. The retractable undercarriage was of conventional (tailwheel) configuration. The radial engines were equipped with four-blade propellers.

Two partly completed Buckinghams were converted as prototypes, the first flying on the 27 October 1944. Unused sets of Buckingham components were used to produce 110 aircraft which were delivered in 1945 and 1946.

All production aircraft were intended to serve as a trainers for the similar Brigand. It was considered the "highest performance trainer in the RAF" when introduced. Blind flying instruction and instrument training could be undertaken, the normal crew complement being pilot, instructor and air signaller. The last Training Command Buckmasters served with the No. 238 OCU at Colerne into the mid-fifties; the transfer of one or two to Filton for experimental work marked its retirement in the mid-1950s.

The Bristol Bulldog was a British Royal Air Force single-seat biplane fighter designed during the 1920s by the Bristol Aeroplane Company. More than 400 Bulldogs were produced for the RAF and overseas customers, and it was one of the most famous aircraft used by the RAF during the inter-war period.

The Type 105 was an unequal span single bay biplane powered by a supercharged Bristol Jupiter VII air-cooled radial engine driving a two-bladed propeller. The structure was all-metal with a fabric covering, using members built up from rolled high-tensile steel strips riveted together. In order to ensure the maximum field of view there was a large semi-circular cut-out in the trailing edge of the upper wing and the inboard section of the lower was of reduced chord. Frise ailerons were fitted to the top wing only. It was armed with a pair of 0.303 in (7.7 mm) Vickers machine guns mounted one either side of the cockpit.

The Bulldog never saw combat with the RAF, although during the Abyssinia Crisis of 1935–36, Bristol Bulldogs were sent to the Sudan to reinforce Middle East Command. Douglas Bader, better known for his Second World War actions, lost both of his legs when his Bristol Bulldog crashed while he was performing unauthorised aerobatics at Woodley airfield near Reading. The Bulldog was withdrawn from RAF Fighter Command in July 1937, being primarily replaced by the Gloster Gauntlet.[9] The Bulldog's RAF career was not over though, for the type continued to serve for a few years with Service Flying Training Schools.[9] The Bulldog was exported to foreign air forces, seeing service with Australia, Denmark, Estonia, Finland, Japan, Latvia, Siam and Sweden.

The RAAF operated 8 Bulldogs, serial no's A12-1 to A12-8, Their service history can be found here.

For more details of the development and design, operational history and variants of the type, click here.

The Bristol F.2 Fighter is a British First World War two-seat biplane fighter and reconnaissance aircraft developed by Frank Barnwell at the Bristol Aeroplane Company. It is often simply called the Bristol Fighter, "Brisfit" or "Biff".

Although the type was intended initially as a replacement for the pre-war Royal Aircraft Factory B.E.2c reconnaissance aircraft, the new Rolls-Royce Falcon V12 engine gave it the performance of a fighter.

Despite a disastrous start to its career, the definitive F.2B version proved to be a manoeuvrable aircraft that was able to hold its own against single-seat fighters while its robust design ensured that it remained in military service into the early 1930s. Some surplus aircraft were registered for civilian use, and versions with passenger cabins were converted.

In the Autumn of 1915, the Royal Flying Corps (RFC) needed a new aerial reconnaissance and artillery spotting aircraft to replace the pre-war Royal Aircraft Factory B.E.2c. Among other attributes and performance requirements, emphasis was placed upon the ability to defend itself in aerial combat.

Several new types were developed; the Royal Aircraft Factory offered its R.E.8 design and Armstrong Whitworth produced the design that eventually emerged as the F.K.8. In March 1916, Frank Barnwell of the Bristol Aeroplane Company, commenced work on a replacement for the B.E.2. This initially took two forms, the Type 9 R.2A, to be powered by the 120 hp Beardmore engine and the similar Type 9A R.2B, powered by the 150 hp Hispano-Suiza. Both designs had the fuselage mounted between the wings, with a gap between the lower longerons and the wing, along with a substantial part of the fin beneath the fuselage. These features were intended to improve the field of fire for the observer; the positioning of the fuselage also resulted in the upper wing obscuring less of the pilot's field of view. The crew positions were placed as close together as possible, to help communication between the pilot and observer.

Before either the R.2A or R.2B could be built, the new 190 hp (142 kW) Rolls-Royce Falcon inline engine became available. Barnwell drafted a third revision of his design around the new engine, with its decidedly superior power/weight ratio. The anticipated improvement in performance changed the emphasis in its intended operational use; it was now seen as a replacement for the F.E.2d and Sopwith 1½ Strutter two-seat fighters, rather than a competitor with the pedestrian reconnaissance designs that were to replace the B.E.2. The resulting Type 12 F.2A, was a two-bay equal-span biplane, closely based on the R.2A and R.2B designs.

A total of 5,329 Bristol F.2 Fighters were built.

Australian Flying Corps operated the Bristol Fighter from 1917 to 1918.

• No. 1 Squadron in Palestine
• No. 6 (Training) Squadron in the United Kingdom

For more details of the development and operational history, click here.

The Bücker Bü 131 Jungmann (freshman, young man) was a German 1930s basic training aircraft which was used by the Luftwaffe during World War II.

After serving in the Kaiserliche Marine in World War I, Carl Bücker moved to Sweden where he became managing director of Svenska Aero AB (Not to be confused with Svenska Aeroplan AB, SAAB). He later returned to Germany with Anders J Andersson, a young designer from SAAB. Bücker Flugzeugbau GmbH was founded in Berlin-Johannisthal, in 1932, with the first aircraft to see production being the Bü 131 Jungmann.

While it was Bücker Flugzeugbau's first production type, the Bü 131A was the last biplane built in Germany. It had two open cockpits in tandem and fixed landing gear. The fuselage was steel tube, covered in fabric and metal, the wings wood and fabric. It first flew on the 80 hp (60 kW) Hirth HM60R.

In 1936, it was followed by the Bü 131B, with a 105 hp (78 kW) Hirth 504A-2.

Most wartime production for the Luftwaffe was by Aero in Prague.

For perational history and details of 13 variants, click here.

The Bücker Bü 133 Jungmeister was an advanced trainer of the Luftwaffe in the 1930s. It was a single-engine, single-seat biplane of wood and tubular steel construction and covered in fabric.

The Bü 133 was a development of the Bücker Bü 131 Jungmann two-seat basic trainer. First flown in 1935 (by Luise Hoffmann, the first female works pilot in Germany), it was slightly smaller than the Bü 131. The prototype, D-EVEO, was powered by a 140 hp (104 kW) Hirth HM506 inverted, air-cooled inline-6 engine.

The aircraft showed "astonishing agility" at its first public appearance, the 1936 International Aerobatic Championship at Rangsdorf, but the Bü 133A garnered no orders; only two Bü 133Bs, with 160 hp (119 kW) version of that same Hirth HM506 inline-6 engine, were built.

The main production type was the 160 hp (119 kW) Siemens-Bramo Sh 14A radial powered Bü 133C, which had a distinctive cowling and a 13 cm (5.1 in)-shorter fuselage, and the same fine aerobatic performance as the Bü 133A.

Fifty-two were manufactured under licence by Dornier for the Swiss Air Force (which kept it in service until 1968). A similar number were built for the Spanish Air Force by CASA, and were designated the CASA 1-133.

Variants

Bücker Bü 133A
Hirth HM 6 inline engine: 135-hp (101-kW)
Bücker Bü 133B
applied to licence-built aircraft (only two versions were ever constructed of this variant).
Bücker Bü 133C
Siemens Sh 14A-4 engine
CASA 1.133
Spanish-built variant.
Price/American Tiger Club Jungmeister
Plans for homebuilt construction.
SSH Bü 133 Jungmeister
Reproduction Jungmeister by SSH in Poland.

Approved for production shortly following the Empire of Japan's entry into the Second World War, the Boomerang was rapidly designed as to meet the urgent demands for fighter aircraft to equip the Royal Australian Air Force (RAAF). It was the first combat aircraft designed and constructed in Australia.

Different variants of the Boomerang were manufactured under a series of corresponding production contract numbers CA-12, CA-13, CA-14 and CA-19, the aircraft supplied under each subsequent contract would incorporate various modifications, typically aimed at improving the aircraft's performance. The Boomerang was handicapped by the available engine variant, which gave low power at altitude and resulted in the aircraft proving to be slower than contemporary fighter aircraft. The Boomerang rarely engaged in aerial combat. During early wartime operations, the Boomerang was mainly dispatched to equip home-based squadrons, freeing up other fighters for use overseas. In later service, the Boomerang would commonly be used for ground support duties, cooperating with Allied army units, in addition to secondary roles such as aerial reconnaissance and air sea rescue.

The Boomerang was a small single-engine monoplane fighter aircraft, designed with an emphasis on high manoeuvrability. It had a stubby appearance, which had resulted from the structure being derived from the smaller Wirraway being paired with a considerably larger engine in the form of a 1,200 horsepower (890 kW) Pratt & Whitney R-1830 Twin Wasp radial engine, which drove a three-bladed Hamilton Standard Hydromatic propeller, license-built by de Havilland . The engine was closely cowled with two air scoops fixed to the upper and lower sides, the upper being for the carburettor and the lower for the oil cooler.. Fuel was divided between one fuselage-housed 70 gallon self-sealing fuel tank and a pair of 45-gallon tanks within the center section of the wing.

For more details of the background, development and operatonal history, as well as variants, click here.

Specifications are for the original CA-12 model.

The CAC CA-15, also known unofficially as the CAC Kangaroo, was an Australian propeller-driven fighter aircraft designed by the Commonwealth Aircraft Corporation (CAC) during World War II. Due to protracted development, the project was not completed until after the war, and was cancelled after flight testing, when the advent of jet aircraft was imminent.

During 1943, following its success in rapidly designing and mass-producing the Boomerang fighter for the Royal Australian Air Force (RAAF), CAC began design work on a fully-fledged interceptor and escort fighter. Because the Boomerang had become more and more obsolete against Japanese fighters like the Mitsubishi A6M Zero, Sir Lawrence Wackett (as head of CAC) proposed designing a new high-performance fighter from scratch. Fred David, who had designed the Boomerang, was to lead an in-house design team at CAC. In June 1943, the design concept proposal was approved by the government and RAAF, which issued specification 2/43, enabling work to commence.  

The design was inspired by contemporary fighters – especially the German Focke-Wulf Fw 190, details of which were available to the designers through Allied intelligence reports on captured aircraft. Although the CA-15 bore a superficial resemblance to the North American P-51 Mustang, the CAC design was not based directly on the American aircraft and had quite different performance objectives. For much of its development, the CA-15 was designed around radial engines, rather than the inline engines used in fighters like the Mustang. In fact, development of the CA-15 was slowed by a recommendation from Wackett, that CAC build Mustangs under licence, rather than bear the cost of developing a unique design. Nevertheless, it was believed that the CA-15 promised capabilities that would enable it to replace the P-51.

At first, the CAC designers planned to use the 2,300 hp (1,715 kW) radial Pratt & Whitney R-2800, with a turbocharger. However, that engine became unavailable, causing further delays in development, and it was decided to fit an in-line Rolls-Royce Griffon Mk 61 (2,035 hp/1,517 kW). Engines for a prototype were leased from Rolls-Royce. It was intended that any production engines would have a three-stage supercharger.

For details of the operational history of the CA-15, click here.

Entering service with the Royal Australian Air Force (RAAF) in 1955 as a basic to advanced trainer, it served in this role until 1975. Later, it was used in the Forward Air Control (FAC) role for target marking until 1994, after which it was retired from RAAF service.

The Winjeel (from a Victorian indigenous word for "young eagle", an alternate spelling of Bunjil) was developed by the Commonwealth Aircraft Corporation at Fishermans Bend in Victoria to satisfy RAAF technical requirement No.AC.77 issued in 1948. Designed to replace both the Tiger Moth and the CAC Wirraway, the first two prototype CA-22 aircraft were flown in February 1951. However, it proved a very stable aircraft making it almost impossible to spin, and with this being a required part of pilot training the tail had to be redesigned as a result.[4] Sixty two production CA-25 aircraft were subsequently built and given the fleet serials A85-401 to A85-462.

For service history of the Winjeel, click here.

The F-86F was redesigned and built by the Commonwealth Aircraft Corporation (CAC). Equipping five RAAF squadrons, the type saw action in the Malayan Emergency in the late 1950s, and was employed for air defence in Malaysia and Thailand in the 1960s. Ex-RAAF models also saw service with the Royal Malaysian Air Force and the Indonesian Air Force.

In 1951, CAC obtained a licence agreement to build the F-86F Sabre. In a major departure from the North American blueprint, it was decided that the CA-27 would be powered by a licence-built version of the Rolls-Royce Avon R.A.7, rather than the General Electric J47. In theory, the Avon was capable of more than double the maximum thrust and double the thrust-to-weight ratio of the US engine. This necessitated a re-design of the fuselage, as the Avon was shorter, wider and lighter than the J47. Because of the engine change the type is sometimes referred to as the Avon Sabre. To accommodate the Avon, over 60 percent of the fuselage was altered and there was a 25 percent increase in the size of the air intake. Another major revision was in replacing the F-86F's six machine guns with two 30mm ADEN cannon,[2] while other changes were also made to the cockpit and to provide an increased fuel capacity.

For details of the development and operational history of the CA--27 Sabre, click here.

The CAC Woomera, also known as the CAC CA-4 and CAC CA-11, was an Australian bomber aircraft that was designed and constructed by the Commonwealth Aircraft Corporation during World War II. The order for the Woomera was cancelled before it became operational with the Royal Australian Air Force (RAAF).

In early 1939, the Australian Government ordered large numbers of Bristol Beaufort bombers, with major components to be built in a variety of locations, including railway workshops, and in doing so it by-passed the local aircraft company, the Commonwealth Aircraft Corporation.

CAC, under Sir Lawrence Wackett, began work on its own design, hoping to out-perform the Beaufort by building a machine that could serve as both a torpedo-bomber and dive bomber. To keep down weight, Wackett dispensed with traditional self-sealing fuel tanks and opted to make the wing cavities liquid-tight, and thus serve as fuel storage. The Australian Government was initially uninterested in the CAC design. However, in mid-1940, cut off from the supply of British-made components for the Beaufort program (thanks to a British embargo on the export of aviation products, due to the need to maximise British production during the Battle of Britain), the Australian Government ordered a prototype of the CAC design, even before the Royal Australian Air Force had expressed a view about the machine. This prototype CA-4 took to the air on 19 September 1941. The CA-4 was a low-wing, twin-engined, multi-role bomber with a crew of three. It was armed with four nose-mounted .303 calibre machine guns and two remote-controlled twin machine-guns barbette mounted at the rear of the engine nacelles. It could carry either 500 lb (230 kg) bombs, 250 lb (110 kg) bombs or two torpedoes. It was originally powered by two Pratt & Whitney Twin Wasp R-1830-S3C3-G radials. Unfortunately, the novel fuel tanks never proved reliable, and in January 1943 the CA-4 prototype was completely destroyed in a mid-air explosion, probably due to a fuel leak.

With a re-designed tail and rudder, and an improved nose armament of two 20 mm cannon and two .303 (7.7 mm) calibre machine guns, the CA-4 became the CA-11 Woomera.

Faced with the crisis caused by the Japanese entry into the war in December 1941, the RAAF accepted the design even before testing was complete, and ordered 105 examples of the CAC bomber on 8 March 1942. However, after the loss of the CA-4 prototype, the redesigned CA-11 did not fly until June 1944. By the time production was due to commence, the dive-bombing concept had fallen into disfavour and the RAAF was filling the light bomber/reconnaissance/strike role with British-designed Bristol Beaufighters (which were being made in Australia by the Department of Aircraft Production); US-made bombers, including the B-25 Mitchell, had also become available. Consequently, the original Woomera order was reduced from 105 to 20. After the first CA-11 flew, the whole program was cancelled and the production capacity set aside for Woomeras at CAC was switched to P-51 Mustang fighters. The only completed CA-11 Woomera, A23-1, was stripped for parts and scrapped in 1946.

The name was derived from its designer Lawrence Wackett.

It was a tandem seat fixed tailwheel-undercarriage monoplane aircraft with a fuselage of steel tube and fabric construction and wings and tail made of wood. Despite the simplicity of the design, construction of the first of two CA-2 prototypes, begun in October 1938, was not completed until September 1939 (this was partly because CAC was still building its factory during this time period). The first prototype flew for the first time on 19 September 1939 fitted with a Gipsy Major series II engine, fitted with a metal DH variable pitch propeller. The aircraft proved to be underpowered with this engine so the second prototype was fitted with a Gipsy Six, removed from a Tugan Gannet, along with its wooden propeller, prior to its first flight in early November the same year (the first prototype was subsequently also re-engined with a Gypsy Six from a Tugan Gannet). Although in-flight performance was improved, the heavier engine negated any benefits to take-off performance obtained from the increased power, so the decision was made to install a 165D Warner Scarab radial engine driving a Hamilton Standard 2B20 two-bladed propeller. The two prototypes were fitted with Scarabs in mid-1940.

For more details of the development and operational history of the Wackett Trainer, click here.

The CAC Wirraway (an Aboriginal word meaning "challenge") was an Australian development of the North American NA-16 training aircraft. The Wirraway has been credited as being the foundation of Australian aircraft manufacturing.

During the Second World War, both the Royal Australian Air Force (RAAF) and Royal Australian Navy (RAN) deployed a number of Wirraways into combat roles, where they served in a makeshift light bomber/ground attack capacity, striking against the advancing forces of the Empire of Japan. While the type had been primarily used as a trainer and general purpose aircraft, being present in small quantities within the majority of front-line squadrons for these purposes, the aircraft was often pressed into combat when required. Typically, fighter versions of the Wirraway were operated over theatres such as New Guinea to perform ground attack missions and other Army co-operation tasks over extended periods until more advanced aircraft had become available in sufficient quantities.

The CAC Wirraway was a training and general purpose military aircraft. The fuselage comprised a welded framework composed of chromium steel, which was construction from four separately produced sections bolted together during final assembly. The sides of the fuselage featured fabric covering supported by aluminium alloy frames, while the underside and decking has metal coverings instead. The single-spar wings, which were built in five individual sections, were composed of spaced ribs and a stressed skin. The control surfaces were metal-framed with fabric covering; the split-flap arrangement of early Wirraways were supplemented on later-built aircraft via the addition of dive brakes. An all-metal stressed skin construction was used for the tailplane and fin; both side of the tailplane were interchangeable.

The Wirraway was powered by a single 600 hp Pratt & Whitney R-1340 Wasp radial engine, licence-built by CAC.[13] the engine drove a three-bladed variable-pitch propeller developed by de Havilland Propellers. Fuel was stored within a pair of 45 gallon tanks.[14] The two-man crew sat within a tandem cockpit, complete with a fully enclosed sliding canopy; both positions were fitted with flying controls. In addition, the rear cockpit featured a rotatable folding seat for the gunner/bomb-aimer, as well as a prone bombing position in the floor of the aircraft. The Wirraway could carry a light armament of a single 500 lb bomb or a pair of 250 lb bombs under the wings; light bombs or flares could also be carried underneath the centerline section. Additionally, a pair of forward-firing Vickers Mk.V machine guns were fitted along with a single swivel-mounted machine gun positioned at the rear of the cockpit.

For more details of the background, selecton, production and operational history, click here.

Details of the variants lists only the numbers of each variant built.

The Canadair CT-114 Tutor (company model CL-41) was the Royal Canadian Air Force (RCAF), and later Canadian Forces, standard jet trainer between the early 1960s and 2000. It was designed and produced by Canadian aircraft manufacturer Canadair.

Development commenced as a private venture by the company. On 13 January 1960, the prototype performed its maiden flight; a year and a half later, the Canadian Government placed a major order for the type. The RCAF would be the dominant user of the type, but a limited number were exported as well. Specifically, the CL-41G model, which was supplied to the Royal Malaysian Air Force (RMAF), served as a ground-attack aircraft up until its withdrawal.

The Tutor served as the Canadian Forces primary jet trainer from the 1960s up until 2000, at which point it was finally retired from this role, having been replaced by a combination of the newer British-built CT-155 Hawk and American-built CT-156 Harvard II. While the majority of Tutors have been retired, a small handful of aircraft are currently still being used by the RCAF’s Snowbirds aerobatics team.

The CT-114 Tutor is a single-engine turbojet-powered trainer aircraft. It was purpose-designed for the training role, and possesses numerous favourable qualities, including a high level of reliability and favourable operating economics. It is capable of a wide performance range, possessing a top speed at altitude of 795 kmh (429 kt) and a diving speed of 885 kmh (478 kt) against a relatively low stalling speed of 71kt. The Tutor is furnished with manual flight controls, which incorporate spring tabs. It is intentionally aerodynamically stable in flight, a factor which traditionally has aided in the training of fresh pilots unfamiliar with the demands of flight.

The Tutor features a side-by-side cockpit. During standard operations, the observing instructor was seated on the right-hand side and the flying student pilot on the left; normally, only the left-hand side normally featured full flight controls. However, following experiences with the Snowbirds display team, a number of aircraft were reconfigured with extra controls so that they would be flyable from either position. The cabin, which is fitted with a rear-hinged canopy over both crew members, can be pressurized to a differential of 3 psi (20 kPa), the equivalent to an altitude of about 2,000 m, for pilot comfort.

For aerial display purposes, the Tutor was readily capable of being fitted with a smoke generator, including a pair of under-fuselage pods to house the pressurized diesel fuel used; the use of red dye in the smoke was discontinued fairly quickly as it was found to be highly corrosive. Various other modifications would also be made to display aircraft; these could be routinely installed and uninstalled as airframes would regularly be exchanged between display and training flights.

As of August 2011, there were three CL-41Gs and one CT-114 on the U.S. civil registry, while none were so registered in Canada.

For details of operational history and variants, click here.

The A-37 Dragonfly variant served in the light attack role during the Vietnam War and continues to serve in the air forces of several South American nations.

In the spring of 1952, the USAF issued a request for proposals for a "Trainer Experimental (TX)" program, specifying a lightweight, two-seat basic trainer for introducing USAF cadets to jet aircraft.

Cessna responded to the TX request with a twin-jet design with side-by-side seating. The USAF liked the Cessna design, which was given the company designation "Model 318", and the side-by-side seating since it let the student and instructor interact more closely than with tandem seating. In the spring of 1954, the USAF awarded Cessna a contract for three prototypes of the Model 318, and a contract for a single static test aircraft. The Air Force designated the type as XT-37.

The XT-37 had a low, straight wing, with the engines buried in the wing roots, a clamshell-type canopy hinged to open vertically to the rear, a control layout similar to that of contemporary operational USAF aircraft, ejection seats, and tricycle landing gear with a wide track of 14 ft (4.3 m). It first flew on 12 October 1954.

The wide track and a steerable nosewheel made the aircraft easy to handle on the ground, and the short landing gear avoided the need for access ladders and service stands. The aircraft was designed to be simple to maintain, with more than 100 access panels and doors. An experienced ground crew could change an engine in about half an hour.

A-37 Dragonfly

The growing American military involvement in Vietnam in the early 1960s led to strong interest in counter-insurgency (COIN) aircraft. In late 1962, the U.S. Air Force's Special Air Warfare Center at Eglin Air Force Base's Hurlburt Field in Florida evaluated two T-37Cs for the role.

The Air Force found the T-37 promising, but wanted an improved version of the aircraft that could carry a much larger payload, and had much greater endurance and better short-field performance. This meant a heavier aircraft with more powerful engines.

For more details of the upgrade of the A-37, click here.

For details of the production, operational history and variants of the T-37 Tweet, click here.

Specifications below are for the T-37B variant.

Cessna T-37 Tweet

Cessna A-37 Dragonfly

The Chase XCG-18A and YC-122 Avitruc (known internally as the Chase MS.7) was a military transport aircraft designed by Chase Aircraft and produced in limited numbers in the United States in the late 1940s, initially as a glider, but definitively in powered form. The design was based on the CG-14 cargo glider but was substantially larger and featured all-metal construction. It was a high-wing cantilever monoplane. The fuselage was of rectangular cross-section and featured a loading ramp at its rear. The main undercarriage units were carried at the sides of the fuselage and were fixed, while the nosewheel was retractable. In its powered form, two radial engines were fitted in nacelles in the wings.

The USAAF's experiences with cargo gliders during World War II indicated a role for a similar aircraft in the post-war inventory, but one capable of carrying a substantially heavier load and with greater recoverability than the essentially expendable wartime wooden assault gliders. Chase's CG-14 was selected as a starting point, and in January 1947, the USAAF placed an order for an enlarged, metal version of this aircraft, initially designated XCG-14B but redesignated to XCG-18A to reflect the basically all-new nature of the aircraft. When the prototype flew that December, it was the world's first all-metal transport glider. One of the major improvements was the use of a thinner wing section which allowed high tow speeds and small aircraft like the P-47 fighter being able to tow it into the air and to its release point.

In March 1948, the service (now the USAF) ordered four more aircraft under the new designation XG-18A and a fifth to be fitted with engines as the YC-122. The air force eventually lost interest in purchasing assault gliders, but continued with the development of the powered variant, purchasing two more examples for evaluation as the YC-122A and redesignating the second of these as the YC-122B when the original Pratt & Whitney engines were swapped for Wright units. This aircraft would form the basis for the definitive service trials version, the YC-122C.

Nine of these aircraft were ordered and although they performed well in evaluation (first at Sewart AFB, Tennessee, later at Ardmore AFB, Oklahoma), the USAF no longer saw a need for a small transport aircraft and cancelled the project. Despite the short-lived history of the aircraft, it was used extensively at Ardmore AFB. By February 1955, at least one pilot, Captain Phillip C. Gromley of the 16th Troop Carrier Squadron, 463rd Troop Carrier Wing, achieved 1,000 hours in piloting the aircraft. All aircraft were replaced by Fairchild C-123B Providers by July 1955. The last YC-122C assault transport was flown to Tucson, Arizona, on 30 August 1955, for storage at Davis-Monthan AFB. Captain Gromely is recorded as making the final flight of a YC-122C to Tucson. The remaining machines served on in utility roles until 1957.

Following their retirement, the fuselage of one of the YC-122s was used in the construction of the Hiller X-18.

Variants

Chase MS.7
Company designation for the XCG-14B / XCG-18A
XCG-18A
XCG-14B re-designated
XG-18A
revised glider version (4 built)
YC-122
prototype powered version, an XG-18A with Pratt & Whitney R-2000-11 engines (one built)
YC-122A
refined version of the YC-122 (two built)
YC-122B
YC-122A re-engined with Wright R-1820-101 engines (one converted)
YC-122C
definitive service trials version (nine built)

At its inception, the B-24 was a modern design featuring a highly efficient shoulder-mounted, high aspect ratio Davis wing. The wing gave the Liberator a high cruise speed, long range and the ability to carry a heavy bomb load. Early RAF Liberators were the first aircraft to cross the Atlantic Ocean as a matter of routine. In comparison with its contemporaries, the B-24 was relatively difficult to fly and had poor low-speed performance; it also had a lower ceiling and was less robust than the Boeing B-17 Flying Fortress. While aircrews tended to prefer the B-17, General Staff favored the B-24 and procured it in huge numbers for a wide variety of roles. At approximately 18,500 units – including 8,685 manufactured by Ford Motor Company – it holds records as the world's most produced bomber, heavy bomber, multi-engine aircraft, and American military aircraft in history.

The B-24 was used extensively in World War II. It served in every branch of the American armed forces as well as several Allied air forces and navies. It saw use in every theatre of operations. Along with the B-17, the B-24 was the mainstay of the US strategic bombing campaign in the Western European theatre. Due to its range, it proved useful in bombing operations in the Pacific, including the bombing of Japan. Long-range anti-submarine Liberators played an instrumental role in closing the Mid-Atlantic gap in the Battle of the Atlantic. The C-87 transport derivative served as a longer range, higher capacity counterpart to the Douglas C-47 Skytrain.

RAAF

Australian aircrew seconded to the Royal Air Force flew Liberators in all theatres of the war, including with RAF Coastal Command, in the Middle East, and with South East Asia Command, while some flew in South African Air Force squadrons. Liberators were introduced into service in the Royal Australian Air Force (RAAF) in 1944, after the American commander of the Far East Air Forces (FEAF), General George C. Kenney, suggested that seven heavy bomber squadrons be raised to supplement the efforts of American Liberator squadrons. The USAAF transferred some aircraft to the RAAF, while the remainder would be delivered from the USA under Lend-Lease. Some RAAF aircrew were given operational experience in Liberators while attached to USAAF squadrons. Seven flying squadrons, an operational training unit, and two special duties flights were equipped with the aircraft by the end of World War II in August 1945.

The RAAF Liberators saw service in the South West Pacific theatre of World War II. Flying mainly from bases in the Northern Territory, Queensland and Western Australia, aircraft conducted bombing raids against Japanese positions, ships and strategic targets in New Guinea, Borneo and the Netherlands East Indies. In addition, the small number of Liberators operated by No. 200 Flight played an important role in supporting covert operations conducted by the Allied Intelligence Bureau; and other Liberators were converted to VIP transports. A total of 287 B-24D, B-24J, B-24L and B-24M aircraft were supplied to the RAAF, of which 33 were lost in action or accidents, with more than 200 Australians killed. Following the Japanese surrender the RAAF's Liberators participated in flying former prisoners of war and other personnel back to Australia. Liberators remained in service until 1948, when they were replaced by Avro Lincolns.

Qantas

In June 1944, Qantas Empire Airways began service with the first of two converted LB-30 Liberators on the Perth to Colombo route to augment Consolidated PBY Catalinas that had been used since May 1943. The Double Sunrise route across the Indian Ocean was 3,513 mi (5,654 km) long, the longest non-stop airline route in the world at the time. The Liberators flew a shorter 3,077 mi (4,952 km) over-water route from Learmonth to an airfield northeast of Colombo, but they could make the flight in 17 hours with a 5,500 pounds (2,500 kg) payload, whereas the Catalinas required 27 hours and had to carry so much auxiliary fuel that their payload was limited to only 1,000 pounds (450 kg). The route was named Kangaroo Service and marked the first time that Qantas's now-famous Kangaroo logo was used; passengers received a certificate proclaiming them as members of The Order of the Longest Hop. The Liberators were later replaced by Avro Lancastrians.

For more details of the development, operational history and  variants of the B-24, click here.  For operational history of the RAAF Liberators, click here.

The Consolidated B-32 Dominator (Consolidated Model 34) was an American heavy strategic bomber built for United States Army Air Forces during World War II, which had the distinction of being the last Allied aircraft to be engaged in combat during World War II; that engagement also resulted in the last American to die in air combat in World War II. It was developed by Consolidated Aircraft in parallel with the Boeing B-29 Superfortress as a fallback design should the B-29 prove unsuccessful. The B-32 only reached units in the Pacific in mid-May 1945, and subsequently saw only limited combat operations against Japanese targets before the formal end of the war on 2 September 1945. Most of the extant orders of the B-32 were canceled shortly thereafter and only 118 B-32 airframes of all types were built.

The engineering development of the B-29 had been underway since mid-1938 when, in June 1940, the United States Army Air Corps requested a similar design from the Consolidated Aircraft Company in case of development difficulties with the B-29.

The Model 33 on which Consolidated based its proposal was similar to the B-24 Liberator. Like the B-24 it was originally designed with a twin tail and a large Davis wing, but with a longer, rounder fuselage and a rounded nose. The powerplants were to be the same quartet of eighteen-cylinder, 2,200 horsepower (1,600 kW) Wright Duplex-Cyclones, as specified for B-29s. The aircraft was designed to be pressurized, and have remote-controlled retractable gun turrets with fourteen .50 in (12.7 mm) machine guns. It was to have an estimated gross weight of 101,000 lb (46,000 kg). The first contract for two XB-32s was signed on 6 September 1940, the same day as the contract for the Boeing prototype XB-29.

The first XB-32-CO, AAF s/n 41-141, was constructed next to the Army Air Forces (AAF) Base Tarrant Field Airdrome at the AAF Aircraft Plant No. 4 just west of Fort Worth, Texas along the south side of Lake Worth. The Consolidated Vultee Bomber Plant assembly line was six months behind schedule, the aircraft making its first flight on 7 September 1942. Due to problems with the pressurization system, the gun turrets and landing gear doors, these items were omitted on the first prototype. The aircraft had R-3350-13 engines inboard and R-3350-21s outboard, with all four powerplants driving three-bladed propellers. The XB-32 had persistent problems with engine oil leaks and poor cooling, but the B-29 also had similar engine problems. The inboard propellers' pitch could be reversed to shorten the landing roll or to roll back in ground maneuvers.

The first XB-32 was armed with eight .50 in (12.7 mm) machine guns in dorsal and ventral turrets, and an odd combination of two .50 caliber and one 20 mm (0.787 in) cannon in each outboard engine nacelle firing rearwards, plus two .50 caliber machine guns in the wings outboard of the propellers. The turrets were remotely controlled from periscopic sights in aiming stations inside the aircraft. The sights were coordinated by a sophisticated analog computer system developed by Sperry Gyroscope Company.

On 17 March 1943, the initial contract was signed for 300 B-32-CFs but development problems continued. On 10 May 1943, the first XB-32 crashed on takeoff after making a total of 30 flights before the second XB-32, s/n 41-142, finally flew on 2 July 1943. This aircraft had a traditional stepped cockpit canopy. Upon examination and testing, the USAAF recommended a large number of changes that included more conventional gun stations.

The pressurization system had problems which were never solved and so the role of the aircraft was changed to operating at low to medium altitude. This decision meant that the pressurization system was easily eliminated from production aircraft. Problems with the remote-controlled gun turrets were never solved and the armament on production aircraft was changed to 10 .50 caliber machine guns in manually operated turrets: Sperry A-17 turrets in the nose and tail, two Martin A-3F-A dorsal turrets, and one Sperry A-13-A ball turret. The bomb load was increased by 4,000 pounds (1,800 kg) to 20,000 pounds (9,100 kg).

For more details of the design and development, operational history and many variants, Click here.    A total of 118 B-32's were produced.

The Consolidated PB4Y-2 Privateer is an American World War II and Korean War era patrol bomber of the United States Navy derived from the Consolidated B-24 Liberator. The Navy had been using B-24s with only minor modifications as the PB4Y-1 Liberator, and along with maritime patrol Liberators used by RAF Coastal Command this type of patrol plane was proven successful. A fully navalised design was desired, and Consolidated developed a dedicated long-range patrol bomber in 1943, designated PB4Y-2 Privateer. In 1951, the type was redesignated P4Y-2 Privateer. A further designation change occurred in September 1962, when the remaining Navy Privateers (all having previously been converted to drone configuration as P4Y-2K) were redesignated QP-4B.

The Privateer was externally similar to the Liberator, but the fuselage was longer to accommodate a flight engineer's station, and it had a tall single vertical stabilizer rather than the B-24's twin tail configuration. The Navy wanted a flight engineer crewmember to reduce pilot fatigue on long duration over water patrols. The single vertical tail was adopted from the USAAF's canceled B-24N design (and was slightly taller on the Privateer) because it would increase stability at low to medium altitudes for maritime patrol. The Ford Motor Company, which produced B-24s for the United States Army Air Forces, had earlier built an experimental variant (B-24K) using a single tail.

Aircraft handling was improved. The single tail design was used on the B-32 Dominator and PB4Y-2 and was slated for the US Army Air Forces' proposed B-24N production model to be built by Ford, but that order (for several thousand bombers) was canceled on 31 May 1945.

Defensive armament on the PB4Y-2 was increased to twelve .50-in (12.7 mm) M2 Browning machine guns in six power-operated turrets (two dorsal, two waist, nose and tail); the B-24's ventral, retractable Sperry ball turret was omitted. Turbosuperchargers were not fitted to the Privateer's engines since maritime patrol missions were not usually flown at high altitude, improving performance and also saving weight.

For more details on development and operational history, click here.

Variants.

YPB4Y-2
prototypes, three built.
PB4Y-2   (Specifications below)
main production version, 736 built.
PB4Y-2B
PB4Y-2s equipped to launch ASM-N-2 Bat air-to-surface missiles. Redesignated P4Y-2B in 1951.
PB4Y-2M
PB4Y-2s converted for weather reconnaissance. Redesignated P4Y-2M in 1951.
PB4Y-2S
PB4Y-2s equipped with anti-submarine radar. Redesignated P4Y-2S in 1951.
PB4Y-2G
PB4Y-2s converted for air-sea rescue and weather reconnaissance duties with the U.S. Coast Guard. Redesignated P4Y-2G in 1951.
PB4Y-2K
PB4Y-2s converted to target drones. Redesignated P4Y-2K in 1951 and QP-4B in 1962.

The Catalina was one of the most widely used seaplanes of World War II. Catalinas served with every branch of the United States Armed Forces and in the air forces and navies of many other nations.

During World War II, PBYs were used in anti-submarine warfare, patrol bombing, convoy escort, search and rescue missions (especially air-sea rescue), and cargo transport. The PBY was the most numerous aircraft of its kind, and the last military PBYs served until the 1980s. As of 2014, nearly 80 years after its first flight, the aircraft continues to fly as a waterbomber (or airtanker) in aerial firefighting operations in some parts of the world.

The designation "PBY" was determined in accordance with the U.S. Navy aircraft designation system of 1922; PB representing "Patrol Bomber" and Y being the code assigned to Consolidated Aircraft as its manufacturer. Catalinas built by other manufacturers for the U.S. Navy were designated according to different manufacturer codes, thus Canadian Vickers-built examples were designated PBV, Boeing Canada examples PB2B (there already being a Boeing PBB) and Naval Aircraft Factory examples were designated PBN.

For the full Catalina story, click here.

The Consolidated TBY Sea Wolf was a United States Navy torpedo bomber of World War II. A competitor and contemporary to the Grumman TBF Avenger, the Sea Wolf was subject to substantial delays and never saw combat; only 180 of the type were built before cancellation after VJ Day.

The original design was not by Consolidated Aircraft, but rather by Vought, who designed the then XTBU-1 Sea Wolf to a 1939 US Navy requirement. The first prototype flew two weeks after Pearl Harbor. Its performance was deemed superior to the Avenger and the Navy placed an order for 1,000 examples.

Several unfortunate incidents intervened; the prototype was damaged in a rough arrested landing trial, and when repaired a month later was again damaged in a collision with a training aircraft. Once repaired again, the prototype was accepted by the Navy. However, by this time Vought was heavily overcommitted to other contracts, especially for the F4U Corsair fighter, and had no production capacity. It was arranged that Consolidated-Vultee would produce the aircraft (as the TBY), but this had to wait until the new production facility in Allentown, Pennsylvania, was complete, which took until late 1943.

The production TBYs were radar-equipped, with a radome under the right-hand wing. The first aircraft flew on 20 August 1944. By this time though, the Avenger equipped every torpedo squadron in the Navy, and there was no need for the Sea Wolf; in addition, numerous small problems delayed entry into service.[citation needed] Orders were cancelled after production started, and the 180 built were used for training.

Variants
XTBU-1 Sea Wolf
Prototype three-seat torpedo bomber powered by a R-2800-22 engine, one built.
TBY-1 Sea Wolf
Production variant of the XTBU-1, not built.
TBY-2 Sea Wolf
TBY-1 with an additional radar pod mounted under starboard-wing, 180 built, a further 920 were cancelled.
TBY-3 Sea Wolf
Improved variant, order for 600 cancelled, not built.

The B-36 is the largest mass-produced piston-engined aircraft ever built. It had the longest wingspan of any combat aircraft ever built, at 230 ft (70.1 m). The B-36 was the first bomber capable of delivering any of the nuclear weapons in the U.S. arsenal from inside its four bomb bays without aircraft modifications. With a range of 10,000 mi (16,000 km) and a maximum payload of 87,200 lb (39,600 kg), the B-36 was capable of intercontinental flight without refuelling.

Entering service in 1948, the B-36 was the primary nuclear weapons delivery vehicle of Strategic Air Command (SAC) until it was replaced by the jet-powered Boeing B-52 Stratofortress beginning in 1955. All but four aircraft have been scrapped.

The B-36 took shape as an aircraft of immense proportions. It was two-thirds longer than the previous "superbomber", the B-29. The wingspan and tail height of the B-36 exceeded those of the 1960s Soviet Union's Antonov An-22 Antheus military transport, the largest ever propeller-driven aircraft put into production. Only with the advent of the Boeing 747 and the Lockheed C-5 Galaxy, both designed two decades later, did American aircraft capable of lifting a heavier payload become commonplace.

The propulsion system of the B-36 was unique, with six 28-cylinder Pratt & Whitney R-4360 'Wasp Major' radial engines mounted in an unusual pusher configuration, rather than the conventional four-engine, tractor propeller layout of other heavy bombers. The prototype R-4360s delivered a total of 18,000 hp (13,000 kW). While early B-36s required long takeoff runs, this situation was improved with later versions, delivering a significantly increased power output of 22,800 hp (17,000 kW) total.[25] Each engine drove a three-bladed propeller, 19 feet (5.8 m) in diameter, mounted in the pusher configuration, thought to be the second-largest diameter propeller design ever used to power a piston-engined aircraft (after that of the Linke-Hofmann R.II). This unusual configuration prevented propeller turbulence from interfering with airflow over the wing, but could also lead to engine overheating due to insufficient airflow around the engines, resulting in inflight engine fires.

The large, slow-turning propellers interacted with the high-pressure airflow behind the wings to produce an easily recognizable very-low-frequency pulse at ground level that betrayed approaching flights.

Beginning with the B-36D, Convair added a pair of General Electric J47-19 jet engines suspended near the end of each wing; these were also retrofitted to all extant B-36Bs. Consequently, the B-36 was configured to have 10 engines, six radial propeller engines and four jet engines, leading to the B-36 slogan of "six turnin' and four burnin' ". The B-36 had more engines than any other mass-produced aircraft. 

Number built: 384

For more information on the development, design, operarional history and variants, click here.