06/30/2014. Remarks by Johan Visschedijk: "The first Monoprep appeared in 1927, designed by Clayton Folkerts and Donald Luscombe of the Central States Aircraft Co. (reorganized as Mono Aircraft Co. in 1928, as Monocoupe Corp. in 1931). The side-by-side two-seat open-cabin high-wing model, certified under the TC 2-90, was powered by a 62 hp Velie M-5 five-cylinder air-cooled radial engine. Only eight were built. The second Monoprep appeared in 1929, built by Mono. Powered by a 55 hp Velie M-5 radial, this version (ATC 218, 2-128) had a shorter-span wing that gave increased speed. Some sixty aircraft of this version were built. The sole surviving example of the Monoprep is a Monoprep 218, c/n 6077 (ex NC119K, now NC179K) is on display at the Airpower Museum, Ottumwa, Iowa."

A Span: Length: Load: Max speed: Cruise speed: Landing speed: Range:

Monoprop 35 ft 0 in (10.67 m) 21 ft 0 in (6.40 m) - 85 mph (137 kmh) 70 mph (113 kmh) 35 mph (56 kmh) 400 mls (644 km)

Monoprop 218 32 ft 0 in (9.75 m) 21 ft 0 in (6.40 m) 505 lb (229 kg) 90 mph (145 kmh) 70 mph (113 kmh) 45 mph (72 kmh) 250 mls (402 km)