A question came up on a model airplane forum, and I realized that my
never-got-past-sophmore-year mechanical engineering chops aren't up to
the task.

Can anyone point to any material -- particularly in handbook form, so I
don't have to learn a whole new branch of science -- in predicting the
torsional stiffness of a wooden shaft? I know how to do this for any
isotropic material, but wood ain't isotropic.

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com