RE: Goldberg YAK 54 - 77"
Welp,
After looking over the numbers, the Fuji 43 may not be a good choice. They are calling for a distance from the FW of 6 1/4 inches and the Fuji stock is 6 3/4 inches which will leave no room at all for a pitts muffler and the stock Fuji is borderline loud for the field I mainly fly at.
The only saving grace may be that Bisson has an inverted muffler coming out and most of the YAK's I have seen have alot more distance between the cowl and prop than what they show in the manual and according to QQ on his Yak that is for prop efficency more than balance