This has me stumped a bit. I don't want to use stability as it related to a spinning top. With the maple seed the torque or moment tilting the seed off axis spins with the seed at the same rotational speed. The spinning top models always show the top's rotational speed is greater than the precession or tilting of the axis.
I believe that I will have to develop a relationship of the moment tilting the seed off-axis and the moments caused by each of the finite elements of the model.
There are actually two different moments causing the seed to tilt off-axis. There is the tilt of the seed giving it what I call a dihedral angle. I flew model airplanes years ago and the dihedral angle is what gave trainer planes better stability. Looking at the front of the plane the main wing has a "V" shape. The dihedral angle is that angle that each wing is tilted up from straight horizontal. So this is one way the maple seed tilts. The other tilt to be considered is the moment that the air flowing over the wing will cause a moment tending to effect the pitch of the wing.
Putting more thought into how to solve the problem,
Irasohn.
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