Model Forum / Radio Controlled / Air Models / November 2003

They tend to run hot, so make sure that the exit from your cowl is about
twice the inlet.  Baffles to the cylinder also help.  Since this is a
geared engine, it uses large props.  Best application is with high-drag
models like bipes.  Power output is about what you would expect from a
60 four-stroke.  The high torque also causes more vibration than usual,
so make sure that the firewall is beefed up.

Jim - AMA 501383