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design ultralight

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  1. J

    gyrocopter control simplification

    i thought of something, but i dont know how practical it would be. so i figured i would submit it for comment from the community. Gyrocopters' rotor usually have two controls, via the swashplate. pitch and roll. but i was thinking, is roll really all that neccissary, considering how much...
  2. proppastie

    Spar Stress FEA and Spread Sheet

    Attached is a fairly famous spread sheet with my numbers, and a FEA report at the target location. I used pin constraints of the same diameter as my target design conversion. I only pretend to know what I am doing so any help the more experienced can give will be appreciated. I have many...
  3. H

    Around the world in a tea daze! advice please :)

    Hey guys! litrally joined the site to post this, because after going through the site, i can tell there is alot of knowledge and enthusiasm on here, and i intend to stick around :) but here goes. I intend to design and build my own... contraption... I plan on using aluminium tubing, should be...
  4. sia_1991

    help for design ultralight aircraft

    hi : i am designing an ultralight aircraft . what is difference between equation in ultralight aircraft and the other . i want to use jet engine problem s i have no jet engine !!! so i decide to use 4 pals jet valve less or liquid-fuel rocket . the specification of my air plane is : length=4.6...
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