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corvairkr

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Posts posted by corvairkr

  1. It was always drummed into me the importance of flying coordinated so you don't get into the wing drop situation to start with.I was taught to enter a spin in properly rigged aircraft you need two things stall and yaw.

     

    It was hammered into me your life depends on your angle of attack so know your stall stick position and always fly coordinated in turns .

     

    jason

     

     

  2. Perhaps someone can help me. Yonks ago I happened on some principles of streamlining aircraft, but now that I need the info, I cannot find it.From memory most appendages (wings, empennage, undercarriage struts) should be followed by streamlining at a ratio of 3:1 to their thickness. If within the prop wash, 4 or even 5:1 ratio was needed.

     

    Can anyone confirm this?

    Everything to know is in the book by Hoerner: Fluid Dynamic Drag. You should be able to find the relevant chapter online. e.g. Me109 drag breakdown is here. http://www.wwiiaircraftperformance.org/me109/Hoerner-Me_109.pdf

    I can highly recommend this book,i got a copy for research into my modified KR build.

    I have it in front of me now and it says the optimum length ratio of fairings put around two dimensional obstacles is 3.7 ....smaller and you will induce flow separation which equals drag....and larger you will create unnecessary friction drag.

     

    Jason

     

     

  3. My suggestion would be , look at the Kitfox site. You can buy in stages, the design is very well known (3500 built) and there are a vast array of engines to fit it, with FWF kits to suit, from Radial 7 cyls plus all sorts of flat fours and sixes at prices from $13000 to $30,000. (plus freight). The kit itself can be a quickbuild version ( 400 hrs reportedly) or the standard one. I did a calculation recently for the kit. As quickbuild as possible ( I'm getting old!) All the bits I needed incl. all the sweet extra's came to approx $23,000. plus GST and freight. So for a minimum of fourty large. You have a Great New Aeroplane. Personally I'm going with the radial as I like to show off a bit! and everyone loves a radial.....Floats are available....

    Ahh yes please i want one...

     

    Jason

     

     

    • Like 1
  4. I have always liked the Corby Starlet and bought a set of plans off John Corby about six years ago.I had a good yarn to him hes a really nice bloke,unfortunately i'm way to fat for the airframe 001_smile.gif.2cb759f06c4678ed4757932a99c02fa0.gif Hongie it would fit you like a glove .

     

    As Yenn says they certainly have spritely performance ...

     

     

    jason

     

     

    • Like 2
  5. ---... -....- -.--.- --. --- .. -. --. -... .- -.-. -.- - --- -- --- .-. ... . -.-. --- -.. . .. ... .- ... - . .--. -... .- -.-. -.- .-- .- .-. -.. ... - . .--. -....- .. -. -- -.-- --- .--. .. -. .. --- -. -....- .- -. -.. ... .... --- ..- .-.. -.. -... . .- ...- --- .. -.. . -.. .-.-.- .-.. . - .----. ... ... - .. -.-. -.- - --- .--. .-.. .- .. -. . -. --. .-.. .. ... .... ---... -....- -.--.-http://www.onlineconversion.com/morse_code.htm

    Yep agreed.

     

     

  6. I reckon youd be changing channels pretty regularly at cruise, and as to doing triangulation calcs........by the time they were done you'd be searching for the next station. then again, perhaps the distance a tacan will work at, at 70,000ft might be a tad longer cause I expect that line of sight is pretty impressive

    Here we go.....001_smile.gif.2cb759f06c4678ed4757932a99c02fa0.gif

     

    http://en.wikipedia.org/wiki/Lockheed_SR-71_Blackbird#Astro-Inertial_Navigation_System

     

    jason

     

     

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