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facthunter

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Everything posted by facthunter

  1. facthunter
    The only incidences that I'm aware of is when Avtur has been inadvertently mixed with avgas making the Octane rating so low that the engines have destroyed themselves during the take-off. Preignition and detonation can co exist. Either are a rapid heat generating Phenomenon and impose shockloads on the engine. The only way of limiting damage is to reduce the Power dramatically or shut the engine down. IN Normal operations, adhering to the Proper fuel and running stipulated Power(Boost/RPM settings, correct Plugs and Limit head temps you are OK. A motor that is burning a lot of OIL is also suss as the normal Lube oils reduce the Octane rating, considerably if they are in the Combustion process. Nev
  2. facthunter
    Stainless is more prone to cracking. A shorter exhaust might get more heat to it. Nev
  3. facthunter
    Seems like a hard Life. Who's the Boss Walla with her hands on Hips? Nev
  4. facthunter
    WE don't have details of what height he was at . It's always important to be able to reach your chosen field and to ensure it happens aim to be a bit high with your Planned touchdown well in, to be safe. Try to be into wind and flap extended to reduce energy. Lower ground speed.
  5. facthunter
    They DID wait a while. Some people are terrified of flying. One time when I had to return and dump Fuel I made a long PA explaining it and when the Hostie came Up I said "Are the Passengers OK?" And she said They're OK but we are worried about it as you went to a lot of trouble. IS it REALLY OK? Nev
  6. facthunter
    Bit of a BEAT-UP. Nev
  7. facthunter
    Accelerate on the ground OR IN Ground effect. Wind from the West there comes over some rough country with a big drop off. Did MY First flight there in 1958. It was Called "Albion Park" then. Nev
  8. facthunter
    The Lower (to 10 PPM ) sulphur levels WILL be Implemented HERE by December this year for Auto fuels. The AVGAS issue was from Mobil's Altona refinery where something went horribly wrong and Caustic soda (NaOH) ended up in the final Product damaging some aircrafts fuel systems so badly some never flew again. Mogas has little security as to Protection from "SOMEONE" adding anything before it gets to You, AVGAS and AVTUR JP4 etc are covered by release notes in either sealed Drums or from a Recognised Fuel Organisation via a Fuel truck specially equipped . In MY Own Vehicles I have had 2 instances where I didn't get to where I wanted to go and I recalled where I got the fuel from Both times and it turned out Many Locals had had a similar experience it seemed. This fuel was being doctored adding stuff not subject to Fuel tax. Never buy fuel from a Place that can flood OR where the turnover is not large. You wouldn't like to see what is inside some of those below ground storage tanks. Nev
  9. facthunter
    The RR Dart engines used Water Methanol Mix for every normal take off. Nev
  10. facthunter
    The Combustion Process itself PRODUCES water. LOTS of it. Sulphur in the fuel makes sulphuric acid. Too hot a spark plug's heat range OR a piece of incandescent Carbon will cause preignition. When detonation OR Preignition occur the CHT's rise rapidly. to make the situation worse. Nev
  11. facthunter
    Pretty Fortunate to find such a LARGE flat Paddock.. Nev
  12. facthunter
    It only extends the gliding range. As a General rule, Lower the Gear to absorb the Energy, unless ditching. Nev
  13. facthunter
    Yes October 16th 1964 at Essendon. Both Ansett and TAA together. 100 series B727, Nev
  14. facthunter
    This Motor is a No Nonsense simple, well Built Low revving Long life direct drive Motor with the Two throat carb beneath the engine where they should be. V engines have a lot of advantages. The whole Plane gets MY tick of approval. Good effort. Nev
  15. facthunter
    Bit of Humidity around. Nev
  16. facthunter
    I think they are used for endorsements. Nev
  17. facthunter
    Despite the Aura and nostalgia with the RR Merlin it did have a few basic faults and did not have a very high TBO. In Most Countries it was never accepted on the Civil Register as a commercial powerplant. Magneto skew gear failure . Cam follower scuffing ( No rollers) and Auto Boost Control amongst other things . It's easy to cast Blame on restorers and I wouldn't take much notice of the "OLD GASKET" thing. There is some Good stuff on the skew gear on line. Nev
  18. facthunter
    Yes . I think they are a conversion. Nev
  19. facthunter
    Fortunately, we fly for a Multitude of reasons so DIFFERENT planes will appeal to different Aviators. There will never be a "One size fit's all". How a Plane penetrates rough air depends a lot on Wing Loading. IF you want to go Long distances safely and when you want to, Fly with Airlines. Don't try too hard to justify the Practical aspects of owning your type of Plane. Don't rush to buy one. The Longer you look around and experience things the Better your choice will be IF you decide to Buy.. It's NOT a Must do for every Pilot.. Nev
  20. facthunter
    Can I direct you to My Post just prior to your disaster, which you didn't reply to. Nev
  21. facthunter
    It's not only too much advance causing problems. It can be too hot a plug or an overheated exhaust valve or crook fuel or too much boost. I've never experienced it personally in any aircraft though I've had engine failures for other reasons. Most aero engines run fairly Low compression ratio's and have a limit on how long TO power can be used for. METO is MAX Except Take Off. With certified motors and good cowling and management I'd suggest it's not a Large issue. A richer Mixture can alleviate it. The damage is typically piston ring land breakage and Piston crown caving in. I've never seen that with an aero engine. Detonation is Hard on Motors. Any diesel added will surely kill a motor during take off It happened when Turbo charged Motors were Introduced. Some fuellers thought TURBO Meant Turbine. Nev
  22. facthunter
    The B727 was Underpowered sometimes slow to altitudes and IF you got slow it fell out of the sky on approach. Lots of FLAP and DRAG. Not a Beginners Plane. Designed to use shorter strips. . Lots of redundancy in the systems. keep engines spooled up below 3,000 ft .Very versatile, Powerful controls. 2 Yaw Dampers on the rudder. Lots of flap speeds and settings and 2 schedules depending on actual Weight. . Those Dreamliner Lovers Probably never got to fly the Douglas DC9. We called it the "Ducati of the Skies". Had little range. 3 Hours to empty. They are ALL PLANES to me. Nev
  23. facthunter
    Lean of Peak is not the way to go if you want engine reliability in the long term. AVGAS has 2 Octane ratings The higher One for RICH and the Other for LEAN, The BIG radials ran on avgas 130-145.There's one as 100-130. I doubt these days you can get the Higher ones at all. All those motors will have to run De-Rated. ( with Less Boost). The DC-6b Had an onboard Ignition analyser (under a hood) for the P&W R2800's for the Flight engineer to Monitor. The Constellation Often referred to as the Consternation and the Boeing strato Cruiser were Notorious for Engines being shut down in Flight. They were the Big Wrights which were also fitted to the Neptunes. Nev
  24. facthunter
    Maybe bright sunlight in the cockpit? What about the despatching engineer talking to the Pilot before the Plane is pushed back showing the gear pins and knowing the brakes are released. The baggage is often loaded right up till the Last Minute. Nev
  25. facthunter
    We don't all DO Facebook either. Nev
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