Yak-11 Radial Engine HobbyKing

thingiverse

This version is designed to attach to the stock Yak-11. There are 2 options available. Option 1) Bulkhead version has the back of the cylinder heads glued to the foam bulkhead. Option 2) Firewall version has adjustable L brackets to facilitate attachment to the firewall via 3mm pan head screws. Fit to your aircraft an glue them in place. In either case, to remove the outrunner motor, the dummy motor must be removed 1st. A remix of Tom Hunt's design with cylinders unmodified