Ltd. The company specialized in light sports and training aircraft. In 1948, Miles became a part of the Handley Page group. The fuselage is narrow with two open cockpits one after the other. Tail fin is tapered. Low-set unswept wings are slightly tapered with rounded tips.
Tailplane is rectangular.
Landing gear is not retractable with main wheels sometimes encased in aerodynamic fairings. A total of 1293 M.14 of modifications Mk. II, and Mk. III were built. The modifications differed mainly in engines used.