The Lockheed P-2 Neptune was a land based Maritime patrol and ASW aircraft developed for the United States Navy which entered service in 1947, it remained in active service until replaced by the P-3 Orion in 1978. It is of note that the Japan Maritime Self Defence Force operated a licence built version of this aircraft, the Kawasaki P-2J. Lockheed P-2 Neptune P-2H Specifications: - Crew: 7-9
- Length: 91 ft 8 in (27.94 m)
- Wingspan: 103 ft 10 in (31.65 m)
- Height: 29 ft 4 in (8.94 m)
- Wing area: 1,000 ft² (92.9 m²)
- Empty weight: 49,935 lb (22,650 kg)
- Max takeoff weight: 79,895 lb (35,240 kg)
- Engines: Twin 3,700 hp (2,759 kW) Wright R-3350-32W Cyclone Turbo-compound radial engines
- Maximum speed: 316 kn (586 km/h) (all engines)
- Cruise speed: 180 kn (333 km/h)
- Range: 1,912 nmi (3,540 km)
- Service ceiling: 22,400 ft
Armament: - Rockets: 2.75 in (70 mm) FFAR in removable wing-mounted pods
- Munitions: Up to 8,000 lb (3,629 kg) which could be free-fall bombs, depth charges or torpedoes
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