CG and High-Speed Snap
I have a .90 sized Edge that mildly snaps during loops with full low-rate elevator. My major concern was eliminating knife-edge pitch coupling. I have moved my CG a bit rearward to eliminate the pull to the canopy successfully. The snapping tendancy did not change much with the CG change, but it got me wondering about the relationship between the CG and high speed snaps.
It would appear to me that with a rearward CG, the wing Angle of Attack would be lower, giving more time before critical wing angle of attack is exceeded during loops etc...
However, common concensus says that a forward CG will help reduce high speed snap tendancies.
Can someone set me straight?