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The Dornier Do 29 was a proposed zerstörer, or heavy fighter, designed by Dornier as a competitor to the Messerschmitt Bf 110.
The design answered the Reich Air Ministry requirement in autumn 1934 for a heavy fighter. Highly derivative of the earlier Do 17, the design was rejected before the prototype stage, and work stopped in 1936.
Data from Luftwaffe secret projects : ground attack & special purpose aircraft 
- Crew: 1
- Length: 15.35 m (50 ft 4 in)
- Wingspan: 17.56 m (57 ft 7 in)
- Height: 4.6 m (15 ft 1 in)
- Wing area: 55 m2 (590 sq ft)
- Gross weight: 4,270 kg (9,414 lb)
- Powerplant: 1 × Bramo 323A 9-cylinder air-cooled radial piston engines, 628 kW (842 hp) LH rotation
- Powerplant: 1 × Bramo 323B 9-cylinder air-cooled radial piston engines, 628 kW (842 hp) RH rotation
- Propellers: 3-bladed variable-pitch propellers
- Maximum speed: 460 km/h (290 mph, 250 kn)
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