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Dornier P 256
The Dornier P 256 was a turbojet nightfighter proposed by Dornier for the Luftwaffe toward the end of the Second World War.[1] It was never built.
Developed from Dornier's unusual centerline thrust fighter project, the Do 335,[2] the P 256 was to meet a Luftwaffe requirement issued 27 February 1945.[3] It was designed to carry a crew of three (pilot, radar operator, and navigator), with pilot and radar operator together under the canopy, while the navigator was in the fuselage,[4] an idea copied from Arado.[5] Departing from centerline thrust, it was to have two Heinkel HeS 011 engines[6] of 1,300 kPs (2,865 lb-fc) each,[7] podded under the wings in the fashion of the Me 262.[8] The low-mounted wing was unswept, and had an aspect ratio of 5.8:1.[9]
Designed armament was four Template:Convert MK 108 cannon in the nose;[10] a field conversion kit was to retrofit two MK 108s in a Schräge Musik configuration.[11] A fighter-bomber variant would have carried two Template:Convert bombs.
Its loaded weight would have included Template:Convert of fuel,[12] giving a wing loading of 276 kg/m2 (56.5 lb/ft2).[13] Maximum speed was achieved at Template:Convert,[14] maximum range at Template:Convert.[15] Endurance with Template:Convert fuel was calculated as 2.6 hours.[16]
Its electronic suite would have included FuG 24SE with ZVG 24, FuG 29, FuG 25a or c, and FuG 244 Bremen with Gnome weapon triggers.[17]
Criticized for having poor cross-sectional area and unduly large tail surfaces,[18] it was not adopted.
Specifications (projected, per Dornier tender)
Data from Schick, Walter, and Meyer, Ingolf. Luftwaffe Secret Projects: Fighters, 1939-45, p.123. Leicester: Midland Publishing, 1997 (Eng. tr. ed.).</ref>
General characteristics
- Crew: three (pilot, radar operator, and navigator)
- Length: 13.6 m (44 ft 7 in)
- Wingspan: 15.45 m (50 ft 8½ in)
- Height: 5.5 m (18 ft)
- Wing area: 41 m2 (441 ft2)
- Empty weight: (with full equipment) 6,860 kg (15,123 lb)
- Loaded weight: 11,300 kg (24,911 lb)
- Powerplant: × two Heinkel HeS 011 turbojet
Performance
- Maximum speed: 882 km/h (548 mph)
- Range: 1,550 km at 630 km/h (963 mi at 391 mph)
- Service ceiling: 29,600 ft (9,020 m)
- Rate of climb: 672 m/min (initial) (2205 ft/s)
- Wing loading: 276 kg/m² (56.5 lb/ft²)
Armament
• four Template:Convert MK 108 cannon (optional two Template:Convert MK 108 cannon in Schräge Musik oblique mount)
Notes
- ↑ Schick, Walter, and Meyer, Ingolf. Luftwaffe Secret Projects: Fighters, 1939-45 (Leicester: Midland Publishing, 1997 {Eng. tr. ed.}), p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
- ↑ Schick and Meyer, p.123.
Source
- Schick, Walter, and Meyer, Ingolf. Luftwaffe Secret Projects: Fighters, 1939-45, p.123. Leicester: Midland Publishing, 1997 (Eng. tr. ed.).
Template:Dornier aircraft Template:RLM aircraft designations
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