The prototype of the Miles Falcon was fitted with extra fuel tanks and entered into the MacRobertson Race from England to Australia in October 1934, and the M.3B version was entered into the 1935 King's Cup Race.
The prototype was fitted with extra fuel tanks and entered into the MacRobertson Race from England to Australia in October 1934. The M.3B was entered into the 1935 King's Cup Race, and piloted by Tommy Rose won with a speed of 176.28 mph (283.70 km/h). 
