turboplanner

If you don't understand the principle, you can just read along; I know it's hard for some to understand it's the engine we are talking about, not the car.

The potential for fire is not about K&N filters in particular; just any air filters which use oil impregnation and have no flame shielding. We do know about it; I've personally seen about a dozen over the years. In cars on the ground there's no real problem. I've seen fires snuffed out with fire extinguishers, bags and in one case hand-fulls of sand by half a dozen people.

What would make an installed carburettor catch fire? Back firing is usually due to maintenance errors, and incorrect throttle use, turning the ignition on, and off when running. The old 1920s cars had manual distributor advance-retard and hoons would build up to speed then pull on full retard and back off the throttle and the engine would backfire until advanced again. In an aircraft you only ever need to have one backfire. It's how lucky you feel I guess.

Methanol/Acetone and Carb. You can also get a backfire with Injected. The "belching flames" were not relevant. When the backfire occurs, it lights up whatever type of fuel has soaked into K&H type filters and lights up the impregnated oil the filter material, causing a vertical fire if stationary, or wherever the wind flow sends it.

Just to clarify what I witnessed. A backfire lit one of the air filters. Four side by side filters caught fire and the fuel/oil mixture fed a fire that was 2 metres high. A person was trapped by a faulty harness, her head about half a metre in front of the tyre. A fire truck was there in seconds and one team started cutting the harness and the other put out the fire. It took some minutes to fire-out and person-out. Since we always have a problem unless an example is given exactly in and aircraft, think of this. If the same filter, even the same part number filter is located in the engine compartment of a recreational aircraft, fuel and materials will be the same so the fire volume will be the same, but this time that two metres of flame is going to have to find a way of escaping, and if you are taxying or flying, that's likely to be in the pilot's direction. I know the origins of these engines, where the rider could depart immediately, so fire would not be an issue, so I would be making a slight change, but it's up to the reader to do whatever he/she likes.

Unfortunately, sometimes on here we may be dealing with the same person writing under several aliases. I'm not talking about you FH. I don't mind because some of the material is good. However some people don't know when to stop and have no idea of engineering or mechanics, so a lot of important safety information just gets blown down the gutter and lessons are lost.

Not if you're smart enough not to use motorbike/stationary engine filters in an aircraft. Easy to get away on the ground.

No they are not spark arrestors. Anyone can induce a backfire; if this happens on the ground you could lose your aircraft; if this happens in the air you could lose your life. I gave you first hand evidence of a flame, a steady flame where a fire truck had to snuff out the steady flame. There are air intake filters and air intake filters, and intake filters that are going to be sitting in an engine bay. The designer needs to select the safe filter and safe installation.

Just a little comment about cone air filters; the flame height from a backfire is a steady 2 metres high in still air. I've seen one go up.

........hooked on clientele. However Cappy, like Albo, had failed to read the room. The Columbians in the streets, fed up with being trampled on and murdered by the drug lords had had a gutfull. They'd thought Donnie Trumpidad was going to save them, but they'd been landed with another would-be drug lord who was also chasing their women. They labelled him Captain Cooked, held protest meetings every Sunday, and the word soon reached Don who was busy trying to colonise Russia. He was irritated .........

.....and perhaps in doing this they lost some power output by pumping hot air into the cylinders. There is an overall balance with peripherals.

..........and the long suffering Venezuelans adored his fairness. Bull, ever the loyal Friend, installed Cappy as President of Columbia, the first of the South American cards he expected to fall. Some now say this was a mistake, others a stroke of Genius. President Don, who had totally shut down Venezuela's cocaine flow into the US by blowing up every boatload everywhere, everyday, was perplexed that Columbia's drug lords didn't seem to be sending anything any more. President Bull charged Cappy with discovering the pipeline and shutting it down. Without a smirk Cappy put on the Jungle Greens, and started walking. From his days on the Khyber he knew it was useless sitting around ; you had to get out there and look and listen. By a million to one chance after crossing the Rio Upundanidad, he heard a steady thumping sound and crept closer. Some NES readers may be old enough to have been told of their grandmother shopping at the older grocery stores, where you walked up to a counter and a little man with a pencil behind his ear walked around putting groceries in an orange case. The little man would add all the prices up and with a flourish put the money and the docket in a glass jar, and jam the jar in an overhead pipeline. He'd pull a rope and there'd be a "POOF" and the jar would shoot to the centre of the room where the owner would check everything, put a farthing's change in the glass jar and after another "POOF" the little man would put his hand up, catch the jar, give the farthing to the shopper and carry the orange case out to the boot of the car, and give the windscreen a wipe with a rag hanging out of his grey coat. Cappy realised he was listening to balls of cocaine being shot by compressed air under the sea to Hangar at Miami International Airport, where it was shipped out as Smiths Chips by 747 all over the lower 48 and .............

Well the pilots who fly under GA fly under Strict Liability. To see where that ends, check the CASA regulations.

Well that's funny, but Training with one instructor over about 12 months gives a spread of weather and an organised transfer of knowledge being loaded into your sub-conscious brain in an orderly manner.

.........Persuader. bull Bull had let Turbo know in a secret conversation [Turbo as CIA 3489Delta was obligated to text this thru to Langley of course], that his mate Don told him to do what he needed to do to make South America Great again (MSAGA), and if the Persuader was needed, to go right ahead. After blowing every speedboat full of cocaine out of the water on the track from Venezuela, Don was in a buoyant mood and was thinking of keeping Capitals for HIMSELF. Bull quietly reminded Don ..............

Yes it would, particularly now that we don't have endorsements. Some aircraft are docile if full flap is accidentally left on; others will lift the nose and try to climb onto their back and a lot of forward pressure is required on the stick. In some cases, possibly this one, an Instructor's to "let the aircraft decide when it's ready to fly avoids a premature yank into the sky nose up."

....bull's possible appointment in the NES Hall of Fame ceremony 2026 brings up an important point. bull was happy to be treated as lower case in bone because it meant "fitting in" up there, whether you were in the head butting team, the arm wrestlers, or even the local walloper. However when he moved to Tasmania it was clear he was now mixing with an Upper Case type of person, descended in many cases from the English Upper Case class. They didn't seem to care what you did, as long as you did it with Case. Turbo has noticed the occasional Hint being Dropped by Bull that he would like to be referred to as Upper Case. This in nothing unusual in the history of Australia. Cappy's ancestor captain james cook was a lower case person. Cappy of course doesn't think we research everything he says and you'll find on page 2,325 his own launch as an Upper Case person. Turbo believes it's high time, Bull, now a ship's captain like Cooky, deserves to be elevated to Upper Case on his well deserved Simon Bolivar appointment which .........

So every year, the fatalities will go on.

Look at the result; flying is a high stakes business and one of the ways to eliminate injury of deaths is to investigate what causes people to be injured or killed, then classify them into types and where there is an obvious prevention, tell everyone. Then, when people have been told, they avoid taking that action and the injuries and deaths from that type of incident cease. That's the theory. If some people are silly enough not to follow the advice, the procedure is usually to sanction them as a deterrent against ignoring the advice. The bigger the risk, the bigger the sanction. If someone decides to fly where the Pilot or passengers will die, how would you prevent it?

I don't know what happened at Temora, but the end of the huge Narromine event was because of all the experts telling the best organiser in the business how much better they could have done it and criticising it - much like this thread. She walked away. and NONE of the experts had the skills to carry on.

............discredited the family. Sir Edmund's brother had made millions on his Tipperary Station, and returned to England. A chance liaison with a barmaid named Smythe produced a son, Rhyce Wuntrak-Smythe, who btw married a local BNS belle Ethel Cook, the daughter of you know who. It was found that the only academic schooling provided to Rhyce came from the Balham pub, and he had landed in Australia as a Jackaroo (not that Jackaroo). Here he had met up with crackers bull, and they developed the lucrative artifact business run out of the National Gallery in Melbourne. Sir Edmund didn't know this until CT Archaeological Investigators reported that their ace investigator, Bill Weston Smythe VC had plugged a fake Archaeologist in his bronze from 300 yards with his 362 hand gun, and that's when ...............

CT Archaeological Investigators had been called in to trace this asset of National value. CT were feared throughout the Archaeology Logistics business because they had a bad habit of shooting first, with their 360 Magnums, and leaving the questions for later. Light-Fingers had a gambling habit and sniffed cocaine, in common with most Victorians of that time (2025) it must be said. Many people know that Tutan-Turbine's tomb had been discovered by the renowned archaeologist Howie Carter-Cook. A hack-Archaeologist really; he had studied under Prof. Priscilla Dessert in Bombay when it still had a University. There was a lot of rumour about the Griffin, but Howie would ply them with Bombay No7 and they'd wake up lying in the street with lipstick all over their face and lose interest in any further questioning. As a result the Griffon, cast in 1969 was said to be authentic, but ......

Turbo sat here down and told her he'd had a long talk with Chuck Yeager at a recent air show, and he had asked chuck how to handle strategy. Over many cups of coffee Chuck tried to explain the process, while struggling with his accent. He covered the the Sound Barrier, the Bell Flights where he became the fastest man on earth, the dat=y when he lost his footing and fell out of the B52, missing the X-1, and landing in puddle of salt. He then went on to tell Turbo about the breakthroughs of the U-2. "You had to manage it carefully up to 20,000 feet and then you could relax until you started flying in the strategy, and you had to be on the ball then." Chuck had said. Turbo turned to her then and said "The future of all flying is in the strategy" and they both walked slowly inside.

.......been gussetted. Cappy gave her that look that says "You look like you've tried that before" and she hit him in the teeth with a bronze griffon. Cappy ........

The U2 budget in 1955 was $22 million. First one sent in parts from Burbank to Area 51 in parts. 200 people on the Area 51 base by Sep 1955, 1/3 CIA, 1/3 USAF. 1/3 Lockheed. They started test flights; first to break 60,000'.