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facthunter last won the day on January 19

facthunter had the most liked content!

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About facthunter

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  • Birthday 04/01/1940

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    non pilot
  • Location
    New Gisborne
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  1. One track, my biggest come off was on a Honda DAX for heavens sake. Down a rough rutted clay based hill . Bloody piece of crap. All the real bikes I've ridden and no sweat. The worst things I've ever been on are scooters particularly Vespa's with little wheels. Nev
  2. Sell more to the kind of person who perhaps shouldn't really be flying. The" just like a car and no more difficult". is a false proposition thats trotted out when someone makes a foolproof uncrashable, easy to fly plane. There's a few who shouldn't drive and a lot more who shouldn't fly or use a chainsaw or nailgun. Some get behind in a fast plane. You really deal with time not distance to keep ahead. of a plane. While these figures don't apply to slower stuff much, the concept does once you get a bit more slippery . Allow room to manouver, distance, time to do what has to be done You can stop a car in 20 metres. It can take 20 Nautical Miles to slow a jet enough to get flap out. (3-4 minutes).. Nev.
  3. Doesn't hurt to have a bit more rudder on a slow plane. I'd prefer the nose to sit a bit lower on the ground than those do so you can pin it on more effectively in gusts. Nev
  4. They make a bit of heat on their own especially when they are old. Nev
  5. Aviation is no stranger to a few "Fly by Night" operators, wherever you go.. Nev
  6. OT .put your hand on any part of a piston engined plane in flight and you will "feel" the rumbles. Nearly everything flexes too. A LOT of instrument panels are rubber mounted even in the old days makes the instruments last longer and makes an IVSI need a little motor to vibrate it. Nev
  7. In normal set ups those things are known as blast tubes With a uniformly pressured area (large volume) you can peel off a bit of air anywhere for a good cause Nev
  8. It's only been in the last 20 years or so that some of the fastest cars produced are diesel. That situation may well change when and if direct injection is more widely used on "non compression ignition" (previously petrol) motors.Nev
  9. Compared to the dynamic and other forces inside an engine the" usual" out of balance forces are of a low order. Balancing won't significantly affect the engines capability to rev . More counterweighting will but it's not used all the time as it adds weight. and THAT makes the torsional vibration problems worse. Not having counterweighting makes the cases take more load. By not balancing for smoothness you are making a risk of the engine feeling rather "nasty" at revs and also things vibrating that shouldn't, linkages exhaust systems carbs etc Radials MUST have large counterweights as the whole mass of pistons and rods is hanging off the single crankpin in each row. Strangely enough, till you think about it, the crankpin is less loaded when the engines got a load on it (Torque produced). Nev
  10. I had no idea of what he would be like. I imagined him as youngish bloke with a lot of enthusiasm and not a lot else.. In actual fact he was much older and vastly experienced in many things which more than qualified him to sort out the landing characteristics of the Thruster which he had a passion for. I don't profess to be able to explain it perfectly but Its rigging/geometry made a conventional 3 point somewhat difficult in some circumstances so he was increasing the wings riggers AoA to make sure it stalled at a better time in the flare. Often the full back stick did not get the tail down enough before the wing stopped providing lift. Plenty of people flew them on tail high but I for one, found that a little touchy especially if the grass was unmowed or the surface undulating. I'm inclined to like to 3 point from wayback as that's the way I started at a smallish landing field. WE communicated a lot on many things and I miss him greatly . Nev
  11. I had a unique experience in 1969 of going across Darwin Harbour in an amphibious tank (AT NIGHT) with about 25 other obviously mad people. It had about 5'' of freeboard and down inside the bilge was a great round engine belching sparks, smoke and flames lying flat and making the tracks move and take us through the water at a snails pace. It was at it's best as we came out of the water on a beach and rolled up to the door of the Place we were going to eat at and surprisingly, no lives were lost in this episode and the return trip. How the hell would that be allowed today? It probably wasn't "allowed" then. We transferred passengers to a conventional ferry to go from and to the wharf a short way from Darwin township. That also wasn't without hazard as it was as dark as the inside of a cows guts (as they say). Nev
  12. I've seen a good Sopwith PUP replica and they are really a scene stealer. Not heavy either, even the originals. The ROTEC is an authentic look and sound (one of the main reasons they were made). Certainly a non boring plane. Everything like that was called a "double winger"( including a Tiger Moth), when I was a kid. . Nev
  13. Depending on the material the thread is into you need varying length of engaged thread operating. Unless it's real crap 2x dia is enough from the strength aspect as a minimum, but self locking and wear come into it as well if it's removed often. Worn or loose threads have a potentially large strength deficit and you run the risk of thread stripping before the design tension is achieved. Long thread depth also is loading the first few threads unavoidably as the screw stud etc is stretching making the thread more coarse in the most stressed areas. Properly designed screws/ studs have reduced shank diameters to put the stress away from the top threads and spread it over a larger length. Have the right thing in the right place.. Simple covers like this one are not loaded much The main thing is the fasteners stay there..Nev
  14. That's sort of possible. Many aero engines have overspeed limits and some are for (write it off and no major parts to be used on anything else) classification. Nev
  15. No reason why it wouldn't fly well. The gyroscopic issues are not there with a "conventional" motor, and it's a great look.. Nev
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