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Plane spinning in circles after takeoff

0 Pishinger  8.8 years ago

Hi,
I am building Saab JAS 39. After taking off it just starts doing circles until it losts speed and crashes. So please tell me what I am doing wrong.

You can download the plane, it is called Saab JAS 39 WIP.

Thanks in advance.

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    3,382 Jasperjl

    Np @Pishinger ;p

    +1 8.8 years ago
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    @Jasperjl Thanks for the advice, it is flying alright now!

    8.8 years ago
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    3,382 Jasperjl

    Your centre of mass (red) must be in front of the centre of lift (blue) or if so it is still to close to it

    +1 8.8 years ago