Originally Posted by
the Wasp
sorry for the edit !
I don't think 8800 is over Revving a 180 4St Glow engine, then again I think 8000 is a bit low, but that is just my opinion, so I could be wrong,, if some one is up around 10,000 with 10% Nitro then I would agree they are not efficient.
Jim
8800 RPM is not over revving an FA-180. But that is static and people have mentioned 10,500 and 11,000 in the air after the prop unloads at speed.
THAT is over revving!