onetrack
-
Posts
8,094 -
Joined
-
Last visited
-
Days Won
101
Content Type
Profiles
Forums
Gallery
Downloads
Blogs
Events
Store
Aircraft
Resources
Tutorials
Articles
Classifieds
Movies
Books
Community Map
Quizzes
Videos Directory
Posts posted by onetrack
-
-
For the bigger industrial diesels, you can buy Delco-style starters that are fitted with a prelube pump on the end of the starter housing.
As soon as you turn the start switch to "start", an electrical circuit is opened that spins the prelube pump, and sends pressurised oil through the oil galleries.
As soon as operating oil pressure is reached, a pressure switch sensor actuates the switching arrangement to turn off the prelube pump and actuate the starter motor.
I seem to recall a number of vintage aircraft and cars had a hand-operated prelube pump?
https://www.flocomponents.com/sln_engine_prelubrication_systems/
-
1
-
1
-
2
-
-
Dog lovers can be a real nuisance to all members of the public - who do not necessarily want to fawn over pet-owners dogs, as most dog owners expect other people to.
Dogs are the equivalent of small children, and there are hundreds of council rules and regulations applicable to dog owners and control of their dogs - because out-of-control dogs are extremely annoying to most other people.
Dogs are to be kept on a leash, and under control at all times they are in a "public place". A "public place" is somewhere where the public can freely attend.
Private premises are not public places, and dog control rules are relaxed there, to the level that a dog must only be confined to the private premises, and not allowed to roam freely in public.
A dog not on a leash in an airside area is a real threat to aviation safety, and is not allowed. If someone brings an unleashed/uncaged dog into that area, they are in breach of aviation or council regulations.
Here is an airside vehicle control manual for Cairns airport, you will find under Section 7.8, that the only uncaged dogs allowed airside, are officially trained dogs, such as law enforcement dogs and guide dogs.
Approval must be obtained for any other dog to be airside.
-
There's definitely something strange going on with her. To say you lack commitment and are too nervous in the air, after just three flights, seems to me, to be a too-quick evaluation.
I'll wager plenty of trainee pilots are still very nervous after just three flights.
Be aware that a percentage of people you deal with, are quite intransigent in their dealings, can take a dislike to you immediately (with no good reason) that means they simply don't want to work with you, and they can also be quite vindictive and mercurial.
Even though this training school ticks all the boxes for you, her attitude says this school is off your list for all time.
Show your commitment by going to another school, even though this may mean some additional cost and inconvenience. You need to find an instructor you can "click" with, and who has a attitude towards trainees that encourages and nurtures.
-
1
-
1
-
-
What are you driving that has the fuel capacity and reserve for 6185Nm?? A B777??
-
I would imagine, that typical of so many organisations that rely on volunteers to carry out work, the pool of skilled volunteers at HARS would be declining, and advanced age and declining eyesight would prevent many from carrying out work that is strenuous for them, whereas that work is not so strenuous for a younger person.
-
Reuters latest news is that the Indonesian National Safety Transportation Committee (KNKT) has issued a statement today that all the FDR data has been successfully extracted from the device.
The KNKT statement says that the FDR "has 330 parameters (in its memory), and all are in good condition". KNKT also stated that the information shows the engines were still operating up until the time the aircraft hit the ocean.
-
The two biggest single problems that invade skills over time are complacency, and the gradual intrusion of bad habits.
Complacency is familiarity in another form, but it will kill you if you let it intrude into your most important and crucial procedures.
Bad habits sneak up on you. You start off by allowing them to creep in, and they gradually get worse. A BFR should identify and rapidly arrest bad habits that have been subtly acquired.
I never cease to be amazed at the number of older, highly-skilled, highly-experienced people who kill themselves, purely due to complacency and bad habits.
-
1
-
1
-
-
I'd say those users who are getting a security warning have a "top brand name" AV system on their computers. These programmes are often way over the top with their security settings.
I don't have any top-level security system on my computer, just a free Malwarebytes program. The classifieds open just fine for me. I'm using Windows 7 Pro and Chrome browser.
Google will tell me if a site security certificate is expired, and will block my access to sites they regard as "unsafe". I think Google are probably a bit over the top in their security approach, too.
I gave up on Norton and Symantec and McAfee years ago, because they are so domineering on your computer, they invade everything, take computer control out of your hands, and do a lot of things you don't want to do. They also use up a lot of memory.
They are overly suspicious of every single change you want to make, and they're basically a PIA. John McAfee is a crook, and I wouldn't trust Norton or Symantec any more than I'd trust McAfee.
-
3
-
-
Jack, who knows what is likely to go on in the cockpits of low-cost Indo carriers, with pilots who often have poor understanding of aircraft systems? I trust the FDR information soon reveals what happened.
Here they are extracting the FDR from its casing and treating it, ready for reading.
-
Now something interesting has raised its head. A unnamed Sriwijaya pilot has revealed to the Indonesian Tempo newspaper, that this particular aircraft had "been having a repetitive autothrottle problem", for the last month.
While the pilot has not been named, and while investigations are still ongoing, it's interesting to note that an AD (AD/B737/149) relating to the autothrottle computer, as fitted to the B737-300/400/500, was released in December 2000.
The essence of the AD was the autothrottle computer originally fitted to the B737-300/400/500 was proving to be unreliable, and was responsible for incorrect thrust settings being applied, resulting in asymmetric thrust.
The AD background is as follows (my italics/bold):
"The aircraft manufacturer has received several reports of asymmetric thrust conditions during flight caused by irregular autothrottle operation in which the thrust levers slowly move apart, causing the aeroplane to bank excessively and go into a roll. This Directive requires replacement of the existing autothrottle computer with a new, improved autothrottle computer.
This action is intended to prevent a severe asymmetric thrust condition developing during flight, which could result in loss of control of the aeroplane."
The AD requirements were (my italics/bold, again):
1. Replace the existing autothrottle computer with a new, improved autothrottle computer in accordance with Boeing Alert Service Bulletin 737-22A1130 dated 24 September 1998.
2. Autothrottle computers with Part Numbers 10-62017-1, -2, -3, -4, -5, -11, -21, -23, -25, or -27 may not be fitted to any aeroplane to replace an installed computer.
https://www.legislation.gov.au/Details/F2006B02851/61540a27-d1c4-4048-a1a9-c9c2f7477bc3
This makes one wonder, if Sriwijaya Air, in its ongoing and current penny-pinching mode, may have replaced the autothrottle computer with a secondhand, early model, fault-ridden unit, with the Part Numbers listed above - and this faulty autothrottle computer has applied severe asymmetric thrust, creating an unintentional bank, and thereby leading to the track deviation, and obvious loss of control, that this aircraft has encountered. Stranger things have happened.
-
2
-
-
.....break open a huge story involving the Don, rigged voting machines, a fake Jedi Rat in Australia, transfers of large sums of money to a small country bank on the NSW border, stolen chooks, false entries in flying logbooks, and well-known aviation personalities, who are currently in hiding.
The journalist who cracked the story, one Jeezits Neerlie Aycou, is well known for his persistent and successful attempts to crack open secret deals, uncover corruption in high places, and pin down fraudulent election polls.
The involvement of the fake Australian Jedi Rat is unknown in the whole story at this stage, but is believed he is also in hiding, in a retirement village near Wodonga, and Aycou hopes very shortly, to spring (literally) a surprise snap interview with this Rat, and bring him......
-
The search for more aircraft pieces, bodies, and the CVR, was suspended Wednesday afternoon, as bad weather whipped up big waves and made diving conditions impossible.
However the weather has moderated today, and the search resumed this afternoon. No word yet, on when the FDR will be opened and read.
The authorities originally stated that it would be read within 3 days of being found. I suspect we will get no information from the FDR until early next week.
It's not unexpected that the largest piece of the aircraft recovered so far is only around 5M long - and most pieces found, apart from the engine core, can be lifted by a couple of people.
-
....which then led to discussions as to what the chook head count would be used for. "Hang on!", cried Turbo, "that's an uneven number of chooks feet, they must've either used a 3-legged chook, or a one-legged chook!"
"That's against all the rules associated with utilising chooks for writing! They'll have to go back to scratch (chook ref), and re-write the rules, utilising two-footed chooks only, to prevent any aberrant......
-
Used to watch the Porter in action in Vietnam, their slow-flying ability was highly impressive to see. They used them to drop SAS troops into strips that were basically just small open patches in the jungle.
They carried out a wide range of activities in Vietnam, they were a very versatile machine. Leaflet drops (Chieu Hoi), enemy electronic surveillance (people sniffer and radio transmission interception), target flare dropping, aerial photography, freight and courier jobs, reconnaissance, command and control missions, even rocket ground attack.
One was brought down by ground fire from the Binh Ba rubber plantation as it returned to Nui Dat, with both pilot and his passenger killed. They were obviously at low level on approach to Binh Ba for ground fire to bring them down.
Of the 19 units purchased by the Australian Army, 7 were destroyed. I know one crashed at Learmonth, but I don't know how the other 5 were lost. I'm presuming they were lost in training accidents.
I never saw one in camouflage paint in the Australian Army, they were all just painted in the standard military colour of the era, "Olive, Drab".
http://www.161recceflt.org.au/unitaircraft/porter/history_of_pilatus_porter.htm
https://www.awm.gov.au/collection/C387332
EDIT - I found all the Australian Army Pilatus Porter crashes are in the Aviation Safety Network database, and the biggest percentage appear to have been lost in training.
https://aviation-safety.net/wikibase/type/PC6T
-
2
-
2
-
-
....,executed. But it gets even worse than that. The execution is carried out by being tied up, then tickled to death, with a feather on the feet, wielded by Constable Doubtfires sister, Jacinta.
But before that occurs, the offender is also tortured. The torture is worse than anything the Gestapo ever thought up - because this is CASA. It starts with a.......
-
The aircraft involved in this crash, has been reported as accruing over 45,000 hrs TT, and over 24,000 cycles, in March 2012. Even allowing for the aircrafts lay-up for the period of the latter months of 2020, it's highly likely, using the previous average of approximately 2500 hrs annually, and 1333 cycles annually, that the TT of this aircraft had possibly reached 65,000 hrs, with possibly over 35,000 cycles.
One could definitely call this an old and "tired" aircraft, without any objection - and if you add in some possible deficient maintenance caused by COVID-19 penny-pinching - then the scene is set for a high potential for disaster.
-
....approach to a horse. "But, I was only trying to mount it!", cried Turbo, as he was being questioned over the incident.
"Yes, that's exactly why we're here", said the investigator, who was a relative of Const Doubtfire, and who was trained to deal with the more deviant types of criminals.
She went on, "We've heard some disturbing reports coming from your neck of the woods, and your family assocations, and we need to get to.....
-
I have to opine that I find it hard to believe that an experienced Captain on a Classic B737-500 would have no ability to control a runaway trim event, given his extensive experience.
The original Boeing 737 advice on how to control runaway trim, upon introduction of the model, only covered 3 lines.
By year 2000, the Boeing runaway trim recovery advice, still only covered 4 memory items, and less than 20 lines in the QRH.
In every runaway trim event I can find, the event usually lasted for a reasonably prolonged period, and involved a "roller coaster" of aircraft flight movements. In a large number of cases, the crew called a Mayday.
In this incident, where the aircraft appears to have simply headed rapidly and directly downwards at a high angle, with little indication of any roller coaster fighting for control, I have to opine it represents a catastrophic airframe failure.
The catastrophic failure could easily have been a smaller component detachment, contacting another important control surface or component, resulting in a rapid and total loss of control.
The Boeing 737 Classic has a good record of trim control reliability - to the extent the NTSB does not consider 737 Stab Trim runaway or jamming occurrences, serious enough to warrant reporting as a major incident.
The SATCOM GURU has the most comprehensive analysis of 737 pitch trim events/incidents, that you're likely to find anywhere.
His analysis includes B737 MAX events, which tend to cloud the issue, when we are talking the purely B737 Classic model.
The introduction of MCAS in the 737 MAX (B737-7/8/9/10) is where all the trim problems started - and it wasn't related to jamming or runaway stab trim, it was an automated control logic problem.
But regardless, the number of pitch control events that have caused the complete loss of a Classic B737, are so low, as to even hardly register in the stats.
http://www.b737.org.uk/runawaystab.htm#qrh
https://www.satcom.guru/2019/05/737-pitch-trim-incidents.html
-
Reports from earlier today said the Indonesians were having "technical problems" with their ping-locating equipment, and were expecting a replacement locator to arrive from Singapore.
https://www.rnz.co.nz/news/world/434415/sriwijaya-air-crash-indonesia-s-black-box-locator-damaged
Regardless, the search went on, with a reported 3600 personnel on the scene, with 13 helicopters, 54 large ships, and 20 small craft.
Later this afternoon, it was reported that one of the recorders had been found and raised, and sent to Jakarta.
A press conference has just been held, and Indonesia's military chief Hadi Tjahjanto has stated the FDR has been recovered, and he is confident the CVR will also be recovered soon.
-
Don, Daimler-Benz did not merge with Chrysler until 1998. APenNameAndThatA speaks of "early 1990's" faulty Mercedes vehicles products.
I've seen comments by Mercedes car lovers that they thought the Mercedes cars were good up until 1995, when Daimler-Benz reportedly reduced the engineered lifespan of Mercedes cars, from 30 years, to 20 years.
https://www.daimler.com/company/tradition/company-history/1995-2007.html
-
1
-
-
......he was disease-free, and if he could still keep a good grip on his wand. For the Captain was well known for his strong and constant grip on his wand - which wand he pulled out and waved about, on a regular basis, at the most inappropriate times, thereby causing great consternation amongst the ladies, who all thought he was going to.........
-
......leading the nation out of it's COVID-19 torpor and navel-gazing. Bull, for example is currently moving ahead with a project that will advance Tasmanian aviation in leaps and bounds - he's patented a "kangaroo undercarriage" for his newest aircraft design, to enable it to hop over obstructions or drains that suddenly appear on the airstrip. This invention came about right after Bulls last aviation adventure, where he ripped the undercarriage off.
Turbo, meantime, has developed a new sniffer process for detecting COVID-19 germs on aircraft. This came about after constant references to the size of Turbo's nose and how he can smell like a bloodhound. In fact, Turbo reckons he can smell COVID-19 infected individuals from 2M away, and this ability has led to him avoiding quite a number of people he suspected of being carriers of the dreaded virus.
Onetrack, meanwhile, is using his enforced quarantine time to find more constructive use of personal time whilst confined. This will help the numerous WF contributors who have suffered from time-use problems during their regular confinements for indulging in devious behaviours. Not the least amongst them is the Captain, who has served serious amounts of confinement time in..........
(DEAR NES READERS - We all note that the Captain has once again morphed from Mickey Mouse, into yet another fantasy figure, the Young Jedi. It is truly alarming that the Captain is obsessed with impersonating these fantasy figures, and we can only gather that he lives in a fantasy land, along with Donald Trump......)
-
The ocean depth is reported as 23M at the general area of impact - and the underwater vision I have seen from the divers appears to show a fairly sandy bottom.
But the bottom line is, the aircraft will be in ten thousand pieces with a vertical dive into the ocean at what appears to be well over 400Kts.
To add to that, the major parts of the aircraft will also be buried in the ocean floor, because they still would have been carrying major velocity, even after travelling through 23M of seawater.
One of the fisherman nearby reported a large wave of over 2M in height nearly swamping his fishing boat - and I'm guessing he would've possibly been up to a kilometre from the impact zone.
That's energy dissipation equivalent to the underwater detonation of multiple tens of tonnes of high explosive. I doubt whether the recovery teams will find many large major components.
You only have to see the engine core that they recovered, it's probably going to be one of the largest parts recovered.
There's an interesting crash report involving a Sriwijaya Air B737-200 in 2008. They landed at excessive speed with a failing/failed hydraulic system, and overran the runway, and wrote the aircraft off.
The only fatalities were 2 farmers they hit on the ground. Handling of post-crash procedures was exceptionally poor, and there was a serious lack of leadership from the flight crew.
The deficient actions of the Captain and F.O. showed extremely poor handling of the hydraulic failure, failure to consult the QRH, failure to carry out a go-around, and a failure to understand the aircraft operating systems.
I would not be in the least surprised, to learn that a similar series of events happened in this crash.
http://avherald.com/h?article=40bce6aa/0002
-
1
-
-
There's talk on the wrinkled fruit forum about an LAE claiming there's been an engine shutdown problem with corrosion in the engine bleed air, 5th stage check valve - that is exacerbated with aircraft storage.
The FAA knows about it, and has released a directive to check the check valve after 7 consecutive days or more of storage. There are also reports of check valve corrosion with anti-microbial additives and water in the fuel.
However, not even a double engine shutdown has the ability to cause such a rapid deviation from controlled flight, as this aircraft has done. And this aircraft has been operating steadily and regularly.
The CFM56 series is touted as one of the most reliable engines available, with GE-Snecma claiming, way back in 2003, that they had engines still operating with original components at 40,000 hrs.
https://www.aerotime.aero/25507-faa-ead-737-bleed-air-valve-corrosion
https://www.smartcockpit.com/docs/CFM_Flight_Ops_Support_B737.pdf
The Never Ending Story
in Aviation Laughter
Posted
.....say nothing about the stolen chairs, the stolen hospital bedsheets I used for wing and fuselage covering, the stolen aluminium tubing from Bunnings, the "hot" accessories on the Rotax - and the fact that I never even bothered to get an aircraft inspection or a rego number."
"Yeah, I can do that", said Turbo. "I'll also turn a blind eye to the overweight issue, even though you'd go to jail for it, if you were caught!".
"Are you telling me the authorities are rounding up fatties, and jailing them, now??, said Cappy in horror. "They can't do that, that would mean......