Ugly Stick Cowl

thingiverse

This replaces the plastic engine on the Ugly Stick from Hobby King. It has ducting to keep things cool and bolts into the stock engine mounting holes. You may need to open the bearing area up. It's a 20.00 mm bearing and the print is coming in at 19.7ish on my setup. You'll also need to drill a hole in the bottom of the cowl to access the two grub screws in the propeller shaft extension. I believe it's 10mm off the mating surface to the fuselage.