Motor mount Speed 300

This is a motor mount to replace an old COX combustion engine with an low cost speed 300 class brushed electric motor (24-25mm diameter). It mounts to the "firewall" and it uses the same 27x20mm screw pattern like the COX engine, so that sidethrust, downtrust and shaft position stay the same. Print with 5 top and 5 bottom layers to crate a solid mounting plate and use a rather high print temperature for better layer connection. Be sure to align the motor cooling outlets with the openings in the mount to prevent the motor from overheating during long flights.