The M.7 Nighthawk was developed from the Miles Falcon Six intended as a training and communications aircraft.

The prototype, registered G-ADXA, was first flown in 1935, it was a low-wing monoplane powered by a 200 hp (149 kW) de Havilland Gipsy Six piston engine.

[1] The design was modified to meet an Air Ministry specification and produced as the M.16 Mentor.

This aircraft was raced in many postwar UK air competitions, but is no longer extant.

[3] Data from British Civil Aircraft 1919-1972:Volume III [1]General characteristics Performance