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ultralight

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  1. radioinred

    UL biplane in the design stage

    Ok guys, heres the plan. Ultralight biplane with 20 ft. span top and bottom, 4.5 ft. chord, flat bottom Clark Y type airfoil, half span ailerons on the lower wing, none on the upper. I want to make (4) 10 ft. spars by laminating (4-5) 1/2X6 in. poplar planks together with a very strong epoxy...
  2. radioinred

    HELP WITH SNOWMOBILE ENGINE!

    Hello all, I have just recently purchased a polaris colt 250 twin engine. It starts on the first pull everytime and it sounds great. My question is, Where can i find a belt reduction drive for it and more importantly how can i establish things like redline rpm, Does anyone know anything about...
  3. radioinred

    Newbie with questions!

    Hello there everyone, i've been reading the post for a long time and i finally registered. I am 21 years young, I am studying to be a mechanical engineer at the moment. I have flown remote controlled planes , helis, jets, of all varieties. Electric, nitro, gas, gliders, you name it. This summer...
  4. Dana

    New design project: Aerobatic ultralight biplane

    Like many pilots, "I want it all". Unfortunately nobody's making the low cost fully aerobatic ultralight amphibian bush plane I want :dis:, so I guess a few compromises are in order. After the UltraStar I'm flying now only meets two of those criteria (ultralight and low cost). One could put...
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