I am using the Whirlwind spinner and backplate (kind of spendy) which is carbon fiber. After 320 hours no loss of prop bolt torque at all.
I am using the Whirlwind spinner and backplate (kind of spendy) which is carbon fiber. After 320 hours no loss of prop bolt torque at all.
Jim Ott
Portland, OR
Kitfox SS7 flying
Rotax 912ULS