The Monocoupes were side-by-side two-seat lightplanes of mixed wood and steel-tube basic construction with fabric covering.

A braced high-wing monoplane with fixed tailskid landing gear, and the reverse curve rear fuselage lines that were to become one of the signature identifier features of the Monocoupes.

The Monocoupe 90 DeLuxe introduced trailing edge flaps, wheel speed fairings and an improved engine cowling.

The Monocoupe Model 70V of 1932, had the low-powered 65 hp (48-kW) Velie M-5 engine reintroduced to provide more economical operation at the cost of a fall in performance.

[5] Aircraft production halted during World War II, resuming briefly in 1948-1950 under the name Monocoupe Airplane and Engine Corporation.

[6] The last of this remarkable line of two-seat aircraft was the Monocoupe D-145 of 1934, a high-performance version with a slightly enlarged cabin and powered by a 145 hp (108 kW) Warner Super Scarab engine.