Piston1
Well-Known Member
- Joined
- Oct 16, 2002
- Messages
- 1,120
This attached picture shows an early generation 91HR rotor. The new rotors are full circle and appear to be better balanced. I have a pair of early engines and a pair of late engines. I have run the early rotor engines with good success but the rotors are starting to show some wear at the imbalanced point. Please comment.
