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Q1W Tokai
Q1W.jpg
Role Anti-submarine bomber
Manufacturer Kyūshū Aircraft Company
First flight September 1943
Introduction January 1945
Primary user Imperial Japanese Navy
Number built 153

The Kyūshū Q1W Tokai (東海 "Eastern Sea"), was a land-based anti-submarine patrol bomber aircraft developed for the Imperial Japanese Navy in World War II. The Allied reporting name was Lorna. Although similar in appearance to the German Junkers Ju 88 medium bomber, the Q1W was a much smaller aircraft with significantly different design details.

Design and developmentEdit

The Imperial Japanese Navy ordered development of the Kyūshū Q1W as the Navy Experimental 17-Shi Patrol Plane[1] in September 1942, and the first test flight took place in September 1943. It entered service in January 1945. The Q1W carried two low-power engines, allowing for long periods of low-speed flight, and was the first purpose-designed anti-submarine warfare aircraft in the world.

In same period Kyūshū built the K11W1 Shiragiku, a bomber training plane (also used in Kamikaze strikes) and the Q3W1 Nankai (South Sea), a specialized antisubmarine version of the K11W.[2] The latter was of all-wood construction and was destroyed during a landing accident on its first flight.

Another specific anti-submarine airplane was the Mitsubishi Q2M1 "Taiyō" (which was derived from Mitsubishi Ki-67 Hiryū "Peggy" Torpedo-bomber), but this did not progress beyond the preliminary design stage.

VariantsEdit

  • Q1W1 : one prototype.
  • Q1W1 Tokai Model 11: main production model.
  • Q1W2 Tokai Model 21: version with tail surfaces in wood, built in small numbers.
  • Q1W1-K Tokai-Ren (Eastern Sea-Trainer): trainer with capacity for four, all-wood construction. One prototype built.

Specifications (Q1W1)Edit

Data from Japanese Aircraft of the Pacific War[3]

General characteristics
  • Crew: 3
  • Length: 12.09 m (39 ft 8 in)
  • Wingspan: 16.00 m (52 ft 6 in)
  • Height: 4.12 m (13 ft 6 in)
  • Wing area: 38.2 m² (411 ft²)
  • Empty weight: 3,102 kg (6,839 lb)
  • Loaded weight: 4,800 kg (10,580 lb)
  • Max. takeoff weight: 5,318 kg (11,720 lb)
  • Powerplant: 2 × Hitachi Amakaze-31 9-cylinder radial engine, 455 kW (610 hp) each

Performance

  • Maximum speed: 322 km/h (200 mph)
  • Range: 1,342 km (839 miles)
  • Service ceiling: 4,490 m (14,730 ft)
  • Rate of climb: 229 m/min (751 ft/min)
  • Wing loading: 126 kg/m² (26 lb/ft²)
  • Power/mass: 0.19 kW/kg (0.12 hp/lb)</ul>Armament
  • 1 × flexible rearward-firing 7.7 mm Type 92 machine gun
  • 1 or 2 × fixed forward-firing 20 mm Type 99 cannon sometimes fitted
  • 2 × 250 kg (550 lb) bombs or depth charges

Radar equipment

  • Type 3 Model 1 MAD (KMX)
  • Type 3 Ku-6 Model 4 Radar
  • ESM Antenna equipment

See alsoEdit

FootnotesEdit

  1. Francillon 1979, pp. 332, 548.
  2. Francillon 1979, p. 332.
  3. Francillon 1979, p. 335.

BibliographyEdit

  • Francillon, R. J. (1979). Japanese Aircraft of the Pacific War. London: Putnam & Company Ltd. ISBN 0-370-30251-6. 
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External linksEdit

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