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The Dornier Do 317 was a prototype German medium bomber of World War II.

Do 317
Role Medium bomber
Manufacturer Dornier Flugzeugwerke
First flight 8 September 1943
Primary user Luftwaffe
Number built 6
Developed from Dornier Do 217

Design and development


In June 1940, Dornier produced plans for a further development of the Do 217, which would have a pressurized cabin and more powerful engines (DB 604, BMW 802 or Jumo 222). Designated Do 317, it was one of the proposals submitted to the RLM for the "Bomber B" project. Two versions of the Do 317 were proposed: the simplified Do 317A, powered by two DB 603A engines and featuring conventional defensive armament, and the more advanced Do 317B with the heavy, 1.5 tonnes apiece, counter-rotating DB 610A/B "power system" engines, remotely aimed Fernbedienbare Drehlafette (FDL)-style gun turrets, higher bombload, and an extended wing.

Six prototypes of the Do 317A were ordered, and the first of these, the Do 317 V1, commenced its flight test program on 8 September 1943. The Do 317 V1 was very similar in appearance to the Do 217K and M models, with a visually reframed slight variation of its multiple glazed-panel "stepless cockpit", fully glazed nose design that accommodated a pressurized cabin provision, and triangular tailfins. Trials with the Do 317 V1 revealed no real performance advance over the Do 217, so it was decided to complete the remaining five prototypes without cabin pressurization equipment and fit them out with FuG 203 Kehl radio guidance transmitting gear to employ them as Henschel Hs 293 missile launchers. In this form, the prototypes were redesignated Do 217R. At this time, the Do 317B project was abandoned due to changing wartime conditions.


Specifications (Do 317A)


Data from Die Deutsche Luftrüstung 1933–1945[1]

General characteristics

Performance

Armament

3 × 13 mm (0.512 in) MG 131 machine gun in upper turret, rear dorsal, and rear ventral positions
2 × 7.92 mm (0.312 in) MG 81 machine gun in nose
1 × 15 mm (0.591 in) MG 151 cannon in nose

See also


Related development

Aircraft of comparable role, configuration, and era

Related lists


Notes


  1. Nowarra, p. 41

References



На других языках


[de] Dornier Do 317

Die Dornier Do 317 war ein mittelschwerer deutscher Bomber aus der Zeit des Zweiten Weltkriegs.
- [en] Dornier Do 317

[fr] Dornier Do 317

Le Dornier Do 317 est un avion militaire essayé par la Luftwaffe au cours de la Seconde Guerre mondiale.

[it] Dornier Do 317

Il Dornier Do 317 era un bombardiere pesante bimotore ad ala alta realizzato dall'azienda tedesca Dornier-Werke GmbH negli anni quaranta.



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