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Aircraft design issue or bug/glitch?

39.5k JoeAdkinson13  8.6 years ago

I am currently working on a plane that has 2 issues that are odd.

  1. Plane takes off and is smooth as glass until around 2100 MPH, at which point it begins chattering from side to side to a 5 0r 10 degree roll.. So violently the wings separate from the body by at least a inch.. The plane holds together and smooths out at around 3500 MPH.

  2. Will RCN thrusters give me normal pitch\roll control above 250,000 feet ?

Any input is appreciated, thanks

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    6,953 Wahoo12

    Something interesting that I have discovered (you can check it out in my plane the Peregrine Shocksurfer) is that sometimes when you run out of fuel, you are going VERY fast, and you have the primary wings shaking up and down like a bird's wings then the plane mantains its speed without needing fuel. I think I uploaded a video of this, but I can't check until later.

    8.6 years ago
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    @Delphinus @merasmusthewizard Thanks guys, I believe I have worked the problems out. I think the flutter was being caused by the primary wings attachment point being too close to the leading edge.
    and will have to consider mounting RCN's to address the 250k ft. control issues.
    uploaded code name "Oracle" (The plane) this morning. thanks again.

    8.6 years ago
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    You may want to look up the concept of "aeroelastic flutter". It affects various airframes in different ways and can set in at high speeds.

    8.6 years ago