Now I know this is not shipbucket style but it is relevant to this AU; The Korolev TB-31 Torpedo Bomber
. (Image represents the TB-31A-2 model)
The Korolev TB-31(named 'Grubyjhouk' after the Rough-legged Buzzard) was the standard shipborne torpedo bomber of the Sieranian Fleet Air Arm from its entry into service in 1937 until well after the second world war. Upon its entry into service it was one of the fastest and most rugged of carrier aircraft then in existence though it was for much of its early years handicapped by under performing engines.
Although primarily used as a carrier-based aircraft, it was also used as a land-based bomber upon occasion. The TB-31 had a crew of three: pilot, navigator/radio operator and dorsal gunner.
Design and developmen
The TB-31 was designed to a 1934 specification for a new metal monoplane torpedo bomber to replace the aging and outdated Korolev TB-23 biplane for use on the nations current and future Aircraft Carriers. It successfully competed against the SAF TB-29 for the production contract and first flew in October 1936.
Testing of the aircraft revealed few flaws with the overall design other than an unusual cockpit gauge layout and sluggish response from the early model Movich MSh-190 radial engine. The initial prototype lacked the specifications dorsal turret due to lack of availability in time for the completion deadline. As a result, the first prototype instead had a dummy aerodynamic fairing fitted to the rear cockpit to simulate the location and weight of the turret. Later prototypes and production models were fitted with originally twin-gun turrets which were upgraded in the TB-31C-2 with quad-guns.
At the time of development, the Navy was comparing both inline and radial engine configurations for their future aircraft. The Navy preferred the Radial engine for its ease of maintenance and reliability but reports from Europe and the United States indicated that the inline engine could offer greater performance. As a consequence, all development naval aircraft of the period were fitted with both types of engine to allow flying off trials. It was during such a test that the superiority of the radial engine for bombers established itself and the Navy ordered into production the Radial engined variant.
Initial prototype variant without dorsal turret and armament
Second and Third prototype variants with dorsal turret
Final prototype variant fitted with an inline engine for comparison tests
Initial production variant with twin gun dorsal turret and two forward firing machine guns in forward fuselage decking
Revised model with guns moved to wings and plumbing provided for carriage of external fuel tanks
Most produced variant with four wing-mounted guns and enlarged self-sealing fuel tanks
Modified TB-31C-1 with quad guns in dorsal turret
Proposed new model with a more powerful Movich MSh-2120 engine
Modified version developed into a Dive bomber, featured separately
Length: 11.38 m (37 ft 4 in)
Wingspan: 13.11 m (43 ft)
Height: 4.27 m
Wing area: 32 m (= 342 ft)
Empty weight: 2,279 kg (5,024 lb)
Loaded weight: 3,800 kg (8,380 lb)
Max takeoff weight: 4,100kg (9,040 lb)
Powerplant: 1× Movich MSh-190 9-cylinder Radial engines, 671 kW (900 hp)
Maximum speed: 378 km/h (235 mph)
Combat radius: 1,255 km (780 mi)
Service ceiling: 8,000 m (26,247 ft)
2 × 7.7 mm (0.3 in) MG 37 machine guns in dorsal ball turret (drum fed, 97 rounds).
4 × 7.7 mm (0.3 in) MG 37 machine guns in wings (350 rpg)
1 x 1,786 lb (810 kg) Type N aerial torpedo or 1 x 1,760 lb (800 kg) bomb or 2 x 550 lb (250 kg) bombs
All of the above is taken from the wiki entry I've been working on of this aircraft; http://wikistates.outwardhosting.com/wiki/Korolev_TB-31