Kyushu Q1W

Q1W Tōkai
A Kyushu Q1W1
Role	Anti-submarine light bomber
Manufacturer	Kyūshū Aircraft Company
First flight	September 1943
Introduction	January 1945
Retired	August 1945
Primary user	Imperial Japanese Navy
Number built	153

The Kyūshū Q1W Tōkai (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.

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.

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.

• 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.

Data from Japanese Aircraft of the Pacific War ^[3]

General characteristics

• Crew: 3
• Length: 12.09 m (39 ft 8 in)
• Wingspan: 16 m (52 ft 6 in)
• Height: 4.12 m (13 ft 6 in)
• Wing area: 38.2 m² (411 sq ft)
• Empty weight: 3,102 kg (6,839 lb)
• Gross weight: 4,800 kg (10,582 lb)
• Max takeoff weight: 5,318 kg (11,724 lb)
• Powerplant: 2 × Hitachi GK2 Amakaze 31 9-cylinder air-cooled radial piston engines, 455 kW (610 hp) each
• Propellers: 3-bladed variable-pitch propellers

Performance

• Maximum speed: 322 km/h (200 mph, 174 kn)
• Range: 1,342 km (834 mi, 725 nmi)
• Service ceiling: 4,490 m (14,730 ft)
• Rate of climb: 3.8 m/s (750 ft/min)
• Wing loading: 126 kg/m² (26 lb/sq ft)
• Power/mass: 0.19 kW/kg (0.12 hp/lb)

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

Avionics

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

Aircraft of comparable role, configuration and era

• Douglas B-18B Bolo
• Lockheed Hudson
• Lockheed PV-1 Ventura

Related lists

• List of aircraft of World War II

• AirToAirCombat.com: Kyushu Q1W Tokai

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