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  1. J

    Fuselage/wing Shaping

    I corresponded with a gentleman in the early 2000's who had built a magnificent live steam locomotive. He was well-known to that particular hobby culture, but revealed to me he had gotten his most useful and valuable experience while working for one of the major aircraft manufacturers in...
  2. J

    Current Crop Dusters

    The planes we watched outside of Phoenix (AZ), excepting of course the "weird" helicopter, appeared to mostly be biplanes, having huge, out-sized radial engines, evidently capable of nearly pulling the aircraft apart! How cautious, careful, must pilots of "over-powered" aircraft be? Is it...
  3. J

    Tap and Die Set

    I must disagree. NO carbon steel cutting tool will ever excel over high-speed steel, unless the HSS is remarkably misrepresented. jack
  4. J

    Can I Do It?

    As a kid, the movie-house showed serials once-weekly, mostly mystery/adventure type stuff. I may be the only one here old enough to recall one in which a key player was an auto-gyro! The bad guys had a cave opening into the side of a very high, vertical cliff, over which a controlled waterfall...
  5. J

    Strange Chopper

    Windows 7 and Internet Explorer 8. Sorry, I do not know what OS means. jack
  6. J

    5.0 liter mustang

    Are we talking here about water-cooling of the engine? Real heavy weight burden. Being new, I ask lots of questions, but intuitively realize weight is of the essence in flying, is it not? That said, how in the world did B-29s receive adequate air for cooling purposes at 30,000 feet? Just...
  7. J

    Can I Do It?

    I built this from scratch, without blueprints, designing as I went, working only from a line drawing showing major dimensions. It is 1/8 scale, weighing around 1,000 lbs. Have always wanted to build two things, lifelong dreams, live steam locomotive, and the other? You've guessed it! jack
  8. J

    Split control surfaces - benefits?

    A ton of information is contained in this thread, much of it beyond my understanding. If you will be kind enough to indulge me, are the surfaces being discussed here movable ones, as opposed to fixed, such as wings? I recall reading when the 747 was introduced it's main wing flaps experienced...
  9. J

    Nose wheel axle???

    How thick, and captured in place how? Using a smaller-diameter threaded fastener? jack
  10. J

    How well do we really understand the materials we use ??

    We have a nice resort hotel here where we live, named the AVI! Could it have influenced Mr. AVI's choice of User Name? " its where good things are happening at an alarming rate." Such as unbridled environmental destruction? "besides becoming the most annoying poster at HBA? " Such...
  11. J

    Strange Chopper

    Thank you for answering! To place this post required a half-dozen attempts, the subsequent page reached always indicates no login. Tried email to admin yesterday. Nothing yet. Anything you might be able to tell me might convince me to remain a member, this is disconcerting and extremely...
  12. J

    Strange Chopper

    Thank you for answering! To place this post required a half-dozen attempts, the subsequent page reached always indicates no login. Tried email to admin yesterday. Nothing yet. Anything you might be able to tell me might convince me to remain a member, this is disconcerting and extremely...
  13. J

    Strange Chopper

    A bit more about experiencing one close-up: Spraying cotton rows, he was flying very low to the ground, perhaps 10 feet, we parked on the shoulder, the rows at a right angle to us, the machine coming directly towards us. He used no "overshoot" distance at all, abruptly swinging straight upwards...
  14. J

    Strange Chopper

    New here, please bear with my ignorance! Living in Phoenix years ago, we often saw this unusual helicopter spraying cotton crops. A friend at work described it as having been built for our military. Unfortunately, I did not take any pics of it back then, but ferreted out this one on-line. The...
  15. J

    Is there a thing as Structure Reinforcing Primer?

    Could you please elaborate on this statement a bit? I was under the impression that any material placed under a load experiences stress. "Stiffness" seems to represent the degree of deflection experienced by a member when placed under a given load. Thank you! jack
  16. J

    Internal Ducting in a Delta Airship

    Seems the thread has rather abruptly lost interest in itself. Reminds me of my own lighter-than-air experience as a teenager. We obtained Gov't. surplus weather balloons locally, cheaply. The first time, my Dad inflated one to about 5 feet diam. in our living room. The rubber, possibly Neoprene...
  17. J

    New from West-Central AZ

    Greetings! Retired Engineer with lifetime interest in big mechanical things: aircraft and fast cars! Have accumulated lots of practical knowledge along the way, but still have many unanswered questions, especially about aeronautics. Still having some login problems, it thanks me for logging...
  18. J

    Landing a no-engine Airbus 320

    Sorry, just joined, a little late! The RAT blade diameter on Airbus A-380 is 1.6m in diameter, largest in the world! Just thought I'd say. Thanks for looking. jack
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