Airboat part kit

This is a WIP. The goal is to have a set of parts that can be used to build an airboat, which is basically just a motor mount, a servo mount and a rudder mechanism. I will add the parts to this thing as I model and print them.

I designed the motor mount for an Emax CF-2822 and a 10x5 propeller which is what I had, so any motor that uses the same 22mm diameter mounting holes and any propeller smaller than a 10x5 should fit.

I'm using 3/8" aluminum tubing as a structural element because it w