The average 40-46 size airplane engine winds up around 12-15000 RPM On a tuned pipe maybe 16-17000 RPM. I don't think the .46 kit comprises of an airplane engine. It would more probably be a ducted fan jet or helicopter engine which will run at around 30-40000 RPM depending on steup. If it is it will have both torque and speed. Now with the gear ratio of the MT I am not sure if it will deliver both or one. I am into Giant Scale Airplanes and was thinking of putting a .46 chopper engine in my T-MAXX. I just got the MAXX 1 1/2 weeks old so have not blasted this engine as yet, so I have not started looking at the possibilities of using a ducted fan jet or chopper engine as yet. I will do some reaserch and would let you guys know.