The first Dornier Do K was the K1 which first flew on 7 May 1929 The K1 was a conventionally-braced high-wing monoplane, powered by a single nose-mounted 510 hp (380 kW) licence-built Bristol Jupiter VI radial engine, and had a conventional landing gear with a tailskid. The square-section fuselage had an enclosed cockpit for two with a cabin behind for freight or eight passengers. Test flights showed that performance was poor and the aircraft was redesigned.
Type 2 + 8 seat airliner
Engine 1 Siemens Jupiter VI with a 4-bladed Dornier wooden prop.
Dimensions Length  15.3 m, height 4.50 m, span 20.6 m, wing area 76.00 m2
Weights Empty 2700 kg, load 1400 kg, flying weight 4100 kg
Performance Max. speed 190 km/h, landing speed 110 km/h, service ceiling 3100 m, climb to 2000 m 17.5 min.
Type Werk.Nr Registration History
First flight 7/5 1929, later rebuilt to K 2