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The Emair MA-1 Paymaster was a 1960s American agricultural biplane aircraft built by Emair, which was part of the Hawaiian Murray company. The prototype was constructed and flown in New Zealand, with production aircraft built in the United States at Harlingen, Texas. The prototype Murrayair MA-1 was built by Air New Zealand on behalf of Murrayair Limited of Hawaii, United States. Based on the Stearman 75 Kaydet, it had an increased wing area and modification to the forward fuselage to accommodate a pilot (in a raised cockpit for better visibility), a jump seat (used to carry an assistant or mechanic between stations), and a chemical hopper. The fixed tailwheel landing gear was strengthened and a more powerful Pratt & Whitney Wasp radial engine fitted. It first flew in New Zealand on 27 July 1969, then it was dismantled and shipped to Hawaii to obtain United States type certification; certification was awarded on 14 April 1970. Emair began production of the aircraft at Harlingen in Texas. The production aircraft were named Agronemair MA-1 Paymaster at first, then designated the Emair MA-1 Paymaster. Production ended in 1976 after 25 had been built. In 1975 Emair developed an improved version, the Emair MA-1B Diablo 1200, which was essentially an MA-1 with a more powerful Wright R-1820 radial engine. The more powerful engine did not increase the maximum takeoff weight but allowed operations at higher altitudes, and its lower output speed helped reduce propeller noise. Forty-eight MA-1s had been built by early 1980, with production being suspended by the end of the year due to poor market conditions. At the end of the 1980s the company halted production after a further 23 Diablos had been built. Variants Murrayair MA-1 New Zealand-built prototype with a 600hp (447kW) Pratt & Whitney R-1340-AN1 Wasp radial engine. Emair MA-1 Paymaster Production aircraft, 25 built. Emair MA-1B Diablo 1200 Improved version with a 900hp (671 kW) de-rated Wright R-1820 radial engine, 48 built.

The Just Escapade is a single-engine, high-wing light aircraft, seating two in side-by-side configuration. It was jointly developed in the United States and the United Kingdom in the early 2000s and by 2010 some 145 Escapades and its "bush plane" variant, the Highlander, had been built and many more kits sold. The Escapade design can be traced back to that of the Avid Flyer, via the Denney Kitfox and Reality Easy Raider, marrying the Easy Raider's wing to a stretched Kitfox Lite fuselage. The key differences between the two types are the Escapade's side-by-side seating in a widened cabin, dual controls, and the option of a tricycle undercarriage It was developed jointly in the United States and United Kingdom by Just Aircraft and Reality Aircraft respectively, the American prototype flying in February 2003, four months before its British counterpart. These prototypes differed to fit into local classifications. The Escapade has a Chromoloy steel frame and is largely fabric covered. The wings have constant chord, ending in Hoerner-type wingtips; the trailing edges are aluminum. The ailerons and flaps have glass fiber leading edges. The wings are braced to the lower fuselage longerons with V-form struts and vertical jury struts. The fuselage is polygonal in section, sloping inwards above and below the center line, with a flat aluminum upper surface that slopes upwards from the tail to the wing trailing edge, at the rear of the cabin. The empennage is conventional, the low aspect ratio tailplane with its swept leading edge and rounded elevators located at the top of the fuselage. There is a portside flight-adjustable elevator trim tab with optional electric drive. The unbalanced rudder extends to the keel, moving in a V-shaped gap between the elevators. The seating is under the leading edge of the wing with a cabin roof window in the wing center section. Access is through side transparencies. Engine options include several Rotax or Jabiru units in the 37-89 kW (50-120 hp) range, driving two- or three-blade propellers and enclosed in a cowling manufactured from composite materials. Both undercarriage versions have the main wheels on faired-in V-form struts mounted on the lower fuselage longerons, with rubber-sprung half axles fixed to a compression frame. The conventional tailwheel is steerable but the alternative nose wheel castors freely, though a steerable version is planned. The Highlander version, intended for rough airstrips and marketed only in the United States, is designed to fly slowly and has a more robust undercarriage. Its wing has a 3 ft (910 mm) greater span, with vortex generators over the whole upper leading edge, and the fin is square cornered and 8 in (200 mm) taller. Its tail control surfaces are horn balanced and increased in area. The Highlander always has the conventional undercarriage, strengthened, with tundra tires and enhanced brakes. A 99 hp (74 kW) Rotax 912 ULS engine is fitted and allows a maximum takeoff weight of 1,320 lbs (598 kg). The Jabiru-engined United Kingdom prototype Escapade gained its permit to fly in September 2003 and the SLA prototype received British Civil Aircraft Rules section S approval from the Light Aircraft Association in April 2008. The Highlander was introduced in 2004. For details of Operational history and Variants, click here. Tailwheel variant Tricycle variant

The Cassutt Special is a single-seat sport and racing aircraft designed in the United States in 1951 for Formula One air races. Designed by ex-TWA captain Tom Cassutt, it is a mid-wing cantilever monoplane with fixed tailwheel undercarriage. The fuselage and tail are of fabric-covered steel tube construction, and the wings are built from plywood over wooden ribs. An updated taper-wing design was first flown in 1971 on Jim Wilson's "Plum Crazy". The aircraft is built with a 4130 tubular steel spaceframe fuselage and a plywood-skinned wing with solid spruce spar and built-up ribs. The design lends itself well to modification, there being several different wing options of wood or composite construction. Several different tails have been built, including T-tails. The standard engine used for competition is the 100 hp (75 kW) Continental O-200, while other, lower-powered engines can be used for recreational flying, including the other small Continental A65 and Continental C90. Cassutt Aircraft discourages the use of auto conversions or larger Lycoming engines. Lycomings have been successful in several builds but the increased weight rarely gives the desired performance boost. Plans and parts were last available from Creighton King in Utah, for amateur construction. King also offered plans for the Stockbarger tapered wood wing. King has since withdrawn the plans from the market. Variants Cassutt I Developed in 1951, First race at Dansville, New York in 1954. Cassutt II Casutt IIM 13.67 ft (4.2 m) wingspan Cassutt IIIM 15 ft (4.6 m) wingspan Cassutt IIIM Sport 17.00 ft (5.2 m) wingspan

The M&D Flugzeugbau AVo 68 Samburo is a two-seat motor glider, first designed and manufactured in Austria. The aircraft is of typical motorglider configuration, with a tractor propeller and long, tapering wings. As originally designed, it also had a sailplane-like undercarriage consisting of a single mainwheel and a steerable tailwheel; however, later versions have a fixed taildragger undercarriage with two spatted mainwheels. The pilot and passenger sit side by side. With numerous design changes - including modern Rotax engines, state-of-the-art avionics, and aerotow capabilities, it is still in production by the M&D Flugzeugbau company in Germany. Variants AVo 60 Samburo The initial prototype powered by a 60 PS (44 kW) Limbach engine. AVo 68 Samburo Production aircraft powered by 68 PS (50 kW) Limbach engines.

The Buhl LA-1 Bull Pup was a light sports airplane developed in the United States in 1930. It was a mid-wing wire-braced monoplane with fixed tailskid undercarriage and an open cockpit for the pilot. Buhl developed the Bull Pup as a cheap aircraft through which the company hoped to remain in business as the onset of the Great Depression was felt. However, as the economic situation worsened, it became evident that there was no demand for even such a basic aircraft; when production ceased in 1932, all aircraft still in stock were sold off at half price as the company folded. Approximately 100 units were completed. Variants LA-1 Bull Pup LA-1A Bull Pup – version for competition flying with 28 ft wingspan LA-1B Bull Pup – version for high-altitude flying with 32 ft wingspan LA-1S Bull Pup – floatplane version

The Adam A500 is an American six-seat civil utility aircraft that was produced by Adam Aircraft Industries. The aircraft is of pod-and-boom, push-pull configuration with its two Continental TSIO-550-E piston engines mounted to provide centerline thrust. The A500 was developed from the M-309 CarbonAero technology demonstrator designed by Burt Rutan and built by Scaled Composites at the Mojave Airport. The "309" designation refers to this being Rutan's 309th aircraft design. The 309 first flew in March 2000, but the aircraft has since been gutted and was used as a static display outside the Adam Aircraft Industries headquarters. In 2006 the 309 was loaned to the Wings Over the Rockies Air and Space Museum and is now on display. Compared to conventional twin-engine installations, the centerline thrust arrangement reduces drag and maximizes the controllability of the aircraft should one engine malfunction or fail. This engine configuration was used by the similar Cessna Skymaster. The A500 airframe is largely built of carbon fiber epoxy composite materials with a Nomex honeycomb core. Other features include cabin pressurization. The prototype A500 first flew on July 11, 2002, and was FAA certified in May 2005. Adam Aircraft ceased operations on 11 February 2008, and filed for Chapter 7 bankruptcy on 19 February 2008, having delivered seven A500s. In April 2008 Adam Aircraft was purchased from bankruptcy by AAI Acquisition Inc. At the time of purchase this new company indicated that they would pursue certification of the A700 jet as a priority and that the A500 would not be produced due to the continuing poor market for piston-engined aircraft. AAI went out of business in April 2009 without producing any aircraft. In April 2011 Triton Aerospace announced that they had acquired the assets of Adam Aircraft including the aircraft type certificate and intend to return the A500 to production. In April 2011 Triton Aerospace announced that they will redesign the aircraft using what Thomas Hsueh, owner of Triton Aerospace, termed "proper engineering" to shed 1,000 lb (454 kg) of empty weight and recertify it with the intention of putting it back into production. The aircraft will also be changed to a turboprop, with twin engined and rear-engined-only versions. A new prototype was expected in 2013 with re-certification to follow. Hsueh indicated that for now production is planned for the US, but costs may require moving the assembly line to China or even a lower cost country such as Mexico. By 2013 the Triton website had been taken down and the URL sold. It is likely that the company has gone out of business. Wikipedia lists that 7 aircraft were built, but serial numbers 1 to 22 were registered according to airport-data.com. A500 A700 powered by two Williams FJ33 turbofans.