Dornier Do 10

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The Dornier Do 10 was the name given by the Reichsluftfahrtministerium (RLM) of a pre-World War II German aircraft. The aircraft has a complicated history due to renaming and the use of three different engines with correspondingly different specifications.

Developed in 1931, it was originally called Do C1, with one variant being the C4. It was the first aircraft of the C model line and was followed by the C2. It most likely started as the C1 and performance numbers suggest it tested BMW engines, and then Hispano-Suiza powerplants. Later that year possibly renamed C4 with the testing of the Rolls-Royce engine. The tilted engine and propeller position was one of the key features it tested along with multiple engine use. In any case, it was a two-seat parasol monoplane intended to be used as a fighter. Two prototypes were made both in 1931.

[edit] Specifications

Type	Two seat fighter
Engine	1 Rolls-Royce Kestrel IIIS	1 BMW VI 7.3 (703)		1 Hispano-Suiza 12 Xbrc (Ybre?)
Power	525 hp (391 kW)	650 hp (485 kW)		690 hp (515 kW)
Dimensions	Length: 10.60 m (34 ft 9 in) height: 4.30 m (14 ft 1 in) wingspan: 15.00 m (49 ft 3 in) wing area: 32.40 m² (349 ft²)		Length: 10.50 m (34 ft 5 in) height: 4.44 m (14 ft 7 in) wingspan: 15.00 m (49 ft 3 in) wing area: 32.40 m² (349 ft²)	Length: 10.60 m (34 ft 9 in) height: 4.30 m (14 ft 1 in) wingspan: 15.00 m (49 ft 3 in) wing area 32.40 m² (349 ft²)
Weights	empty: 1,600 kg (3,530 lb) flying: 2,300 kg (5,070 lb) max takeoff: 2,300 kg (5,070 lb)	empty: 2200 kg (4850 lb) flying: 2640 kg (5,820 lb) max takeoff: 2,640 kg (5,820 lb) kg		empty: 1,600 kg (3,530 lb) flying: 2,640 kg (5,820 lb)
Performance	Max. speed: 278 km/h (150 kt) at sea level 315 km/h (170 kt) at 3,500 m (11,500 ft) range: 800 km (430 nm) service ceiling: 9,100 m (29,900 ft) Wing load: 71.0 kg/m² (14.5 lb/ft²)	Max. speed: 288 km/h (156 kt) at sea level cruising speed 250 km/h (135 kt) climb to 1000 m: 1 min 54 s to 5000 m: 12 min 48 s Initial climb rate : 8.80 m/s (1730 ft/min) range: 800 km (430 nm) service ceiling: 7,500 m (24,600 ft) Wing load: 81.0 kg/m² (16.6 lb/ft²)		Max. speed: 272 km/h (147 kt) at sea level 318 km/h (172 kt) at 3500 m Range: 800 km (430 nm) Service ceiling: 9,500 m (31,200 ft)
Armament	Four MG 08/15, (two forward, two in rear turret)

(nm = nautical miles, kt = knots)

[edit] Sources

(Limited information)

• 1 (This site has good picture of the tilted engine)
• 2 (non-English, must use online site tranlator to view English) (Best site, lot of information found here. Although aircraft pictured does not appear to have tilted engine)
• 3
• Another data source: 4

(Information on this model is difficult to come by and the nature of the relationship between C1/C4/10 is not yet totally resolved)