Hi, I have no info' on the Beaver exactly, but after my trpuble with two VMAR 'Stick 40's, I'll never buy another one again. I've had two Stick 40's break a wing in flight just outboard the center wing sheeting. I use GMS 47's (great engines) and was doing s simple split S and the wing just broke. WHY?? They don't use hard wood for the wing spars. It's just hard balsa, but that's not enough. I suppose scale flying with a Beaver might be OK, but don't get into any wild flying. CKS