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turboplanner

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Everything posted by turboplanner

  1. turboplanner
    OK, now what does the flywheel balance have to do with a pipe connecting Carburettors?
  2. turboplanner
    Well, what would we do to check the balance of a machined circular flywheel - or why are so many Rotax flywheels out of balance and why would that be relevant to fitting this pipe in lieu of fine tuning the carburettors?
  3. turboplanner
    OK, accepting that, were these "out of balance" flywheels observed with the flywheel in its place, or off the engine/crank balanced on knife edges or electronically?
  4. turboplanner
    Was this imbalance measured with the flywheel bolted and tensioned in place?
  5. turboplanner
    .......hampoo. Jacinta was giving one to every CFA volunteer as a small token of thanks to help them clean up after fighting the fires for 25 hours every day. She had mistaken Cappy for a hose volunteer. As NES readers know, Cappy wouldn't volunteer to get out of bed in the morning unless it was to build his kit Jabiru 235. Cappy of course had a latte friendship with Goldilocks the Fireman and every morning they'd sit in the Bayliss St joint and slag Turbo and call us mextorians. Turbo, a close friend of Jacinta, had informed her of this, and also that Cappy was always coming on to girls. While "girls' might be a stretch in the Victorian Cabinet, the 50% share had grown to 98% squalling females, who'd cut you down if you didn't smile and clap............
  6. turboplanner
    ........you're an Allen key?" She gave Cappy the coldest glare he had ever seen; it was saying "Land Tax, Land Tax" and frightened Cappy so much that he blurted, "I'm from New South Wales" This really tipped the bucket over and ........
  7. turboplanner
    ...... Cappy, in the past, has often tried on stunts so he can be the last or the first, once jumping into Paul Keating's lap, but readers can be assured that the show will go on. It was just a glitch on Turbo's lap top that kept the dots in the feed, then spat them out here as Jacinta ....................................................
  8. turboplanner
    .......Country Fire Authority members letters of appreciation to Jacinta.
  9. turboplanner
    ".........Formula One people were always a little bit different with their technology. Jack Brabham, although a world champion would walk into the Repco workshops and yell out to Phil Irving "Where's the Injun!. Phil, who could smoke a cigarette so precisely without touching it that when he finished it, would drop his, ash, thinking they were under attack." "In your case, Oscar, you raced Go Karts from the age of three, and spelling wasn't a number one priority in that group. Just look how they spelled cart, and no you can't drive the Corvette; you might break it. They both stood there a while looking at the carved Sequoia aircraft, and Oscar mused "I wonder where the Time-Travel (TT) module is located. Turbo grabbed a chisel and ...........
  10. turboplanner
    Yes it does, but some industries start with that, then extract more and more power flowing more carbies. Jetskis are a good example, much the same size hull, but currently selling models over 300 hp.
  11. turboplanner
    Anyone can be a comedian, but don't just tell lies to twist the truth. I did not say backfires were inevitable in a Rotax. Any engine can backfire. It's just plain ignorant to paint a picture of a manifold blowing an engine of the aircraft. We're talking about routine issues with engines here. Maybe a crossover pipe helps smooth idling, maybe its some other issue with the combination of equipment and layout. I worked with 4 carbies a lot and nothing beat careful adjustment there. Some people would use a vacuum balance, but having exactly the same length, optimum jetting, adjusting cables for smoothest idle will give that idle. No matter what you do, the cables will have minor reseating, adjustment in the bends etc, and this maybe is what the balance tube allows for, but the optimum is not to have out of tune settings.
  12. turboplanner
    .......the NES lapsed into silence at this profound statement by Mr Jones, or Jonesy as his mates called him. Interestingly, he was one of the pioneers of the Recreational Aircraft industry, living in a time when fathers would carve out a solid piece of wood into an aircraft (even though Wright Bros Exhibitions hadn't yet been started). These model aircraft flew extremely well - into Mum, the cat, the dog or the horse waiting patiently outside harnessed to the cart. Many carts were wrecked due to low flying aircraft. Turbine Jones thought on this as he read his Bible, and when he got to where Moses parteth the waters with just a speech, he decided to carve a full RA size aircraft from a Giant Sequoia. The finished design was beautiful when the carving was polished. He had a body contour seat, a ........
  13. turboplanner
    One says informative the other gives a caution but is unable to explain why.
  14. turboplanner
    Turbo was moved to tears at this note from his dear friend Cappy. With the greatest of respect, Turbo points out that it wasn't him, although he is quite capable of it, but a Great Uncle, the son of Wilhemina Turbine . Wil, as she was known used to shoot off with Annie Oakley. His father was Jonathan Jones who carried a big knife like Davey Crockett and was the only survivor of the Alamo, who was saved by climbing up a chimney when the Alamo was overrun by Mexican immigrants.
  15. turboplanner
    ...........prominent assets. Turbine Jones, grabbed him by the leg, threw him out of the train's path, and kicked the fireman in the aXXX. The fireman responded by throwing a lump of coal at Turbine Jones, hitting him in the cods. In one fluid action, Turbine Jones swung up into the guards van, kicked the air brakes on, and swung out in an arc, landing lightly on the verandah of the Lone Star Hotel.............
  16. turboplanner
    One of them was a Horwood Bagshaw saw engine so not a race car built by amateurs running methanol. Most of the others were not race cars built by amateurs running methanol. Do you really think an engine turning backwards backfires as a result? It's worthwhile doing some reading about what causes backfires. It's also relatively easy to take fire prevention measures with the system and that's worth a read also.
  17. 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.
  18. turboplanner
    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.
  19. turboplanner
    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.
  20. turboplanner
    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.
  21. turboplanner
    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.
  22. turboplanner
    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.
  23. turboplanner
    Not if you're smart enough not to use motorbike/stationary engine filters in an aircraft. Easy to get away on the ground.
  24. turboplanner
    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.
  25. turboplanner
    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.
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