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Question

5,517 one  8.7 years ago

How to prop vtol? Please tell me because i have an aircraft that can vtol with prop but cannot fly horizontally. I just need to fix the location of COM COT COL by myself

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    5,517 one

    @KCferrari ok to fix nose down tendencies is hard for me.

    8.7 years ago
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    18.8k KCferrari

    @RedstoneAerospaceDivision No problem, but I thought of one more thing. Make sure it doesn't have nose down tendencies in flight

    8.7 years ago
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    5,517 one

    @KCferrari thank you for your feedback

    8.7 years ago
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    18.8k KCferrari

    @RedstoneAerospaceDivision Basically the trick is you need an airframe design that is very controllable at very low speeds and high angles of attack. Since balancing the mass and thrust is critical for VTOL, you basically need to design the whole plane around this balance. For the wing layout, you need a substantial amount of lift, or the transition will result in falling to the ground, and of course the CoL should be just behind the mass. If you're having problems, try tossing a light prop on the front and make sure it can fly conventionally. Again, needs to be maneuverable as low as 120 mph. Can't think of much else to say, but hope that helps.

    8.7 years ago
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    @Thorm81 You're welcome. When you do finish it, could you tell me? I am excited to see it.

    8.7 years ago
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    5,517 one

    @KCferrari

    8.7 years ago
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    1,529 Thorm81

    @KnightOfAraluen I won't submit it til it's done, I'll eventually figure it out. Thanks for the offer though.

    8.7 years ago
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    @Thorm81 Lol. If you tell me the plane, or give me a link I could try to help you.

    8.7 years ago
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    1,529 Thorm81

    @KnightOfAraluen Really? I have the opposite problem. I can easily get a plane to fly like normal, but can't work out how to make it hover. It will take off then either tip forward or backward.

    8.7 years ago
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    I havent ever been able to get prop vtols to work. Flying up is easy, but straight is hard. When the props rotate forwards, it also changes the center of mass, and creates a sort of momentum. Make sure you find some way to counter this, and it will work. Good luck to you.

    8.7 years ago
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    87.2k Johndfg

    I'm not sure, but I hope someone else can help

    8.7 years ago