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The Lockheed P-2 Neptune (designated P2V by the United States Navy prior to September 1962) was a Maritime patrol and anti-submarine warfare (ASW) aircraft. It was developed for the US Navy by Lockheedto replace the Lockheed PV-1 Ventura and PV-2 Harpoon, and being replaced in turn with the Lockheed P-3 Orion. Designed as a land-based aircraft, the Neptune never made a carrier landing, although a small number of aircraft were converted and deployed as carrier launched stop-gap nuclear bombers which would have to ditch or recover at land bases. The type was successful in export and saw service with several armed forces.
Role: Maritime Patrol and Anti-Submarine Warfare
Manufacturer: Lockheed
First flight: 17 May 1945
Introduction: March 1947
Retired: 1984 From military use
Primary users: United States Navy
Japan Maritime Self Defense Force
Royal Australian Air Force
Royal Canadian Air Force
XP2V-1: Prototype, two built. Powered by two 2,300 horsepower (1,700 kW) Wright R-3350-8 engines with four-bladed propellers, with armament of two .50 in machine guns in nose, tail and dorsal turrets, and 8,000 pounds (3,600 kg) of stores in an internal bomb bay.
P2V-1: First production model with R-3350-8A engine. Provision for 16 5 inches (130 mm) HVAR or 4 11 3⁄4 inches (300 mm) Tiny Tim rockets underwing; 14 built.
XP2V-2: Fifth production P2V-1 modified as a prototype for P2V-2. Powered by water injected R-3350-24W engines.
P2V-2: Second production model, powered by two 2,800 horsepower (2,100 kW) R-3350-24W engines driving and three-bladed propellers. Nose turret replaced by "attack" nose fitted with six fixed 20 mm cannon. First eight aircraft retained Bell tail turret fitted with twin .50 machine guns, with remaining aircraft using Emerson tail turret with twin 20 mm cannon. 80 built.
P2V-2N "Polar Bear": Two P2V-2 modified for polar exploration under Project Ski Jump. Armament removed, with ski landing gear and provision for JATO rockets. Fitted with early MAD gear for magnetic survey purposes. Used for Operation Deep Freeze Antarctic exploration. The specially modified P2Vs had 16-foot long aluminum skis that were attached to the main landing gear units that when retracted, tucked into fairing just below the engines. This way the modified P2vs could still land on a regular runway surface.
P2V-2S: One P2V-2 modified as a prototype anti-submarine variant with an AN/APS-20 search radar and additional fuel.
P2V-3: Improved patrol bomber with 3,200 horsepower (2,400 kW) R-3350-26W engines with jet stack engine exhausts. 53 built.
P2V-3B: Conversions from other P2V-3 models, including P2V-3C and −3W, fitted with the ASB-1 Low Level Radar Bombing System; 16 converted.
P2V-3C: Stop-gap carrier based one-way nuclear-armed bomber, not intended to return for a landing on a carrier. Fitted with JATO rocket to aid take-off from carrier and more fuel. Nose guns and dorsal turret removed to save weight. 11 P2V-3s and one P2V-2 modified.
P2V-3W: Airborne Early Warning variant, AN/APS-20 search radar; 30 built.
P2V-3Z: VIP combat transport with armored cabin in rear fuselage with seats for six passengers. Retained tail turret. Two converted from P2V-3s.
P2V-4: Improved anti-submarine aircraft. Fitted with AN/APS-20 search radar and provision for dropping sonobuoys with additional dedicated sonobuoy operator. Underwing tip-tanks added, with searchlight in nose of starboard tip tank. First 25 aircraft powered by 3,200 horsepower (2,400 kW) R-3350-26WA engines, with remaining 27 powered by 3,250 horsepower (2,420 kW) Wright R-3350-30W turbo-compound engines. 52 built in total. Surviving aircraft redesignated P-2D in 1962.
P2V-5: Fitted with Emerson nose turret with two 20 mm cannon replacing solid nose of earlier versions, while retaining dorsal and tail turrets. New, larger, jettisonable tip tanks, with traverable searchlight slaved to nose turret in front of starboard tip-tank and AN/APS-8 radar in nose of port tip-tank. AN/APS-20 search radar under fuselage. Later aircraft featured glazed observation nose and MAD gear in place of nose and tail turrets, and revised crew accommodation, with many earlier aircraft refitted. Dorsal turret often removed. 424 built.
P2V-5F: Modification with two 3,250 pounds-force (14.5 kN) J34 jet engines to increase power on take-off, and 3,500 horsepower (2,600 kW) R-3350-32W piston engines. The J34 engines and R-3350 had a common fuel system burning AvGas rather than having dedicated jet fuel (as did all Neptunes with jets except the Kawasaki P-2J). Four underwing rocket pylons removed but increased 10,000 pounds (4,500 kg) weapon load. Redesignated P-2E in 1962.
P2V-5FD: P2V-5F converted for drone launch missions. All weaponry deleted. Redesignated DP-2E in 1962.
P2V-5FE: P2V-5F with additional electronic equipment. Redesignated EP-2E in 1962.
P2V-5FS: P2V-5F with Julie/Jezebel ASW gear, featuring AQA-3 long range acoustic search equipment and Julie explosive echo sounding gear. Redesignated SP-2E in 1962.
AP-2E: Designation applied to P2V-5F with special SIGINT/ELINT equipment used by the US Army's 1st Radio Research Company at Cam Ranh Bay. Carrying a crew of up to fifteen, the AP-2E was the heaviest P-2, with a take-off weight of up to 80,000 pounds (36,000 kg). Five converted (also designated RP-2E).
NP-2E: Single P-2E converted as permanent test aircraft.
OP-2E: Modified for use as part of Operation Igloo White for sensor deployment over South-East Asia with Observation Squadron 67 (VO-67). Fitted with terrain avoidance radar in nose, chaff dispensers, wing mounted gun pods and waist guns. 12 converted.
P2V-6: Multi-role version with lengthened weapons bay and provision for aerial minelaying and photo-reconnaissance. Smaller AN/APS-70 radar instead of AN/APS-20. Initially fitted with gun turrets as P2V-5, although retaining ability to be refitted with glazed nose. A total of 67 were built for the US Navy and France. Redesignated P-2F in 1962.
P2V-6B: Anti-shipping version with provision to carry two AUM-N-2 Petrel anti-ship missiles. 16 built. Later redesignated P2V-6M then MP-2F.
P2V-6F P2V-6 refitted with J34 jet engines. Redesignated P-2G.
P2V-6T: Crew trainer conversion with armament deleted, wingtip tanks often deleted. Redesignated TP-2F.
P2V-7: Last Neptune variant produced by Lockheed, powered by R-3350-32W and J-34 engines. Fitted with lower drag wingtip tanks, AN/APS-20 search radar in a revised radome and a bulged cockpit canopy. Early aircraft were fitted with defensive gun turrets but these were removed as for the P2V-5. 287 were built, including 48 assembled by Kawasaki in Japan. Redesignated P-2H in 1962.
P2V-7B: 15 aircraft with non-glazed nose fitted with four fixed 20 mm cannon for Royal Netherlands Naval Air Service. Subsequently fitted with glazed nose and modified to SP-2H standard. Supplemented by four SP-2H from France.
P2V-7LP: Four aircraft built with wheel/ski landing gear and JATO gear for Antarctic operations. Redesignated LP-2J. (No relation to Kawasaki P-2J)
P2V-7S: Additional ASW/ECM equipment including Julie/Jezebel gear. Redesignated SP-2H.
P2V-7U: Naval designation of the RB-69A variant.
AP-2H: Specialized night and all-weather ground attack variant fitted with FLIR and Low Light TV systems, tail turret, fuselage mounted grenade launchers and downwards firing miniguns. Bombs and napalm carried on underwing pylons. Four converted in 1968 for Heavy Attack Squadron 21 (VAH-21) for operation over South Vietnam. (Variant in photo)
DP-2H: P-2H converted for drone launch and control.
EP-2H: Single P-2H modified with UHF telemetry equipment instead of ASW systems.
NP-2H: Testbed conversion of P2V-H.
RB-69A: Five new built and two converted from P2V-7s for CIA covert operations, obtained with USAF help and operated by ROCAF/Taiwan's 34th Squadron. Aerial reconnaissance/ELINT platform, modular sensor packages fitted depended on the mission needs. Originally fitted with Westinghouse APQ-56 Side Looking Airborne Radar (SLAR), the APQ-24 search radar, the Fairchild Mark IIIA cameras, the APR-9/13 radar intercept receiver, the QRC-15 DF system, the APA-69A DF display, the APA-74 pulse analyser, the Ampex tape recorder, the System 3 receiver to intercept enemy communications, the APS-54 RWR, a noise jammer, the RADAN system doppler radar navigation, and others. In May 1959, an upgrade program known as Phase VI was approved, and added the ATIR air-to-air radar jammer, replacing APR-9/13 with ALQ-28 ferret system, the QRC-15, 3 14-channel recorders and 1 7-channel high speed recorder to record ELINT systems, the K-band receiver, the ASN-7 navigation computer replacing RADAN, and Fulton Skyhook system.
Neptune MR.1: British designation of P2V-5; 52 delivered.
CP-122 Neptune: RCAF designation of P2V-7.(jet pod not initially fitted to 25 P2V-7 aircraft delivered to RCAF, but subsequently retrofitted)
Kawasaki P-2J (P2V-Kai): Japanese variant produced by Kawasaki for JMSDF with T64 turboprop engines, various other improvements; 82 built.
Role: Maritime Patrol and Anti-Submarine Warfare
Manufacturer: Lockheed
First flight: 17 May 1945
Introduction: March 1947
Retired: 1984 From military use
Primary users: United States Navy
Japan Maritime Self Defense Force
Royal Australian Air Force
Royal Canadian Air Force
XP2V-1: Prototype, two built. Powered by two 2,300 horsepower (1,700 kW) Wright R-3350-8 engines with four-bladed propellers, with armament of two .50 in machine guns in nose, tail and dorsal turrets, and 8,000 pounds (3,600 kg) of stores in an internal bomb bay.
P2V-1: First production model with R-3350-8A engine. Provision for 16 5 inches (130 mm) HVAR or 4 11 3⁄4 inches (300 mm) Tiny Tim rockets underwing; 14 built.
XP2V-2: Fifth production P2V-1 modified as a prototype for P2V-2. Powered by water injected R-3350-24W engines.
P2V-2: Second production model, powered by two 2,800 horsepower (2,100 kW) R-3350-24W engines driving and three-bladed propellers. Nose turret replaced by "attack" nose fitted with six fixed 20 mm cannon. First eight aircraft retained Bell tail turret fitted with twin .50 machine guns, with remaining aircraft using Emerson tail turret with twin 20 mm cannon. 80 built.
P2V-2N "Polar Bear": Two P2V-2 modified for polar exploration under Project Ski Jump. Armament removed, with ski landing gear and provision for JATO rockets. Fitted with early MAD gear for magnetic survey purposes. Used for Operation Deep Freeze Antarctic exploration. The specially modified P2Vs had 16-foot long aluminum skis that were attached to the main landing gear units that when retracted, tucked into fairing just below the engines. This way the modified P2vs could still land on a regular runway surface.
P2V-2S: One P2V-2 modified as a prototype anti-submarine variant with an AN/APS-20 search radar and additional fuel.
P2V-3: Improved patrol bomber with 3,200 horsepower (2,400 kW) R-3350-26W engines with jet stack engine exhausts. 53 built.
P2V-3B: Conversions from other P2V-3 models, including P2V-3C and −3W, fitted with the ASB-1 Low Level Radar Bombing System; 16 converted.
P2V-3C: Stop-gap carrier based one-way nuclear-armed bomber, not intended to return for a landing on a carrier. Fitted with JATO rocket to aid take-off from carrier and more fuel. Nose guns and dorsal turret removed to save weight. 11 P2V-3s and one P2V-2 modified.
P2V-3W: Airborne Early Warning variant, AN/APS-20 search radar; 30 built.
P2V-3Z: VIP combat transport with armored cabin in rear fuselage with seats for six passengers. Retained tail turret. Two converted from P2V-3s.
P2V-4: Improved anti-submarine aircraft. Fitted with AN/APS-20 search radar and provision for dropping sonobuoys with additional dedicated sonobuoy operator. Underwing tip-tanks added, with searchlight in nose of starboard tip tank. First 25 aircraft powered by 3,200 horsepower (2,400 kW) R-3350-26WA engines, with remaining 27 powered by 3,250 horsepower (2,420 kW) Wright R-3350-30W turbo-compound engines. 52 built in total. Surviving aircraft redesignated P-2D in 1962.
P2V-5: Fitted with Emerson nose turret with two 20 mm cannon replacing solid nose of earlier versions, while retaining dorsal and tail turrets. New, larger, jettisonable tip tanks, with traverable searchlight slaved to nose turret in front of starboard tip-tank and AN/APS-8 radar in nose of port tip-tank. AN/APS-20 search radar under fuselage. Later aircraft featured glazed observation nose and MAD gear in place of nose and tail turrets, and revised crew accommodation, with many earlier aircraft refitted. Dorsal turret often removed. 424 built.
P2V-5F: Modification with two 3,250 pounds-force (14.5 kN) J34 jet engines to increase power on take-off, and 3,500 horsepower (2,600 kW) R-3350-32W piston engines. The J34 engines and R-3350 had a common fuel system burning AvGas rather than having dedicated jet fuel (as did all Neptunes with jets except the Kawasaki P-2J). Four underwing rocket pylons removed but increased 10,000 pounds (4,500 kg) weapon load. Redesignated P-2E in 1962.
P2V-5FD: P2V-5F converted for drone launch missions. All weaponry deleted. Redesignated DP-2E in 1962.
P2V-5FE: P2V-5F with additional electronic equipment. Redesignated EP-2E in 1962.
P2V-5FS: P2V-5F with Julie/Jezebel ASW gear, featuring AQA-3 long range acoustic search equipment and Julie explosive echo sounding gear. Redesignated SP-2E in 1962.
AP-2E: Designation applied to P2V-5F with special SIGINT/ELINT equipment used by the US Army's 1st Radio Research Company at Cam Ranh Bay. Carrying a crew of up to fifteen, the AP-2E was the heaviest P-2, with a take-off weight of up to 80,000 pounds (36,000 kg). Five converted (also designated RP-2E).
NP-2E: Single P-2E converted as permanent test aircraft.
OP-2E: Modified for use as part of Operation Igloo White for sensor deployment over South-East Asia with Observation Squadron 67 (VO-67). Fitted with terrain avoidance radar in nose, chaff dispensers, wing mounted gun pods and waist guns. 12 converted.
P2V-6: Multi-role version with lengthened weapons bay and provision for aerial minelaying and photo-reconnaissance. Smaller AN/APS-70 radar instead of AN/APS-20. Initially fitted with gun turrets as P2V-5, although retaining ability to be refitted with glazed nose. A total of 67 were built for the US Navy and France. Redesignated P-2F in 1962.
P2V-6B: Anti-shipping version with provision to carry two AUM-N-2 Petrel anti-ship missiles. 16 built. Later redesignated P2V-6M then MP-2F.
P2V-6F P2V-6 refitted with J34 jet engines. Redesignated P-2G.
P2V-6T: Crew trainer conversion with armament deleted, wingtip tanks often deleted. Redesignated TP-2F.
P2V-7: Last Neptune variant produced by Lockheed, powered by R-3350-32W and J-34 engines. Fitted with lower drag wingtip tanks, AN/APS-20 search radar in a revised radome and a bulged cockpit canopy. Early aircraft were fitted with defensive gun turrets but these were removed as for the P2V-5. 287 were built, including 48 assembled by Kawasaki in Japan. Redesignated P-2H in 1962.
P2V-7B: 15 aircraft with non-glazed nose fitted with four fixed 20 mm cannon for Royal Netherlands Naval Air Service. Subsequently fitted with glazed nose and modified to SP-2H standard. Supplemented by four SP-2H from France.
P2V-7LP: Four aircraft built with wheel/ski landing gear and JATO gear for Antarctic operations. Redesignated LP-2J. (No relation to Kawasaki P-2J)
P2V-7S: Additional ASW/ECM equipment including Julie/Jezebel gear. Redesignated SP-2H.
P2V-7U: Naval designation of the RB-69A variant.
AP-2H: Specialized night and all-weather ground attack variant fitted with FLIR and Low Light TV systems, tail turret, fuselage mounted grenade launchers and downwards firing miniguns. Bombs and napalm carried on underwing pylons. Four converted in 1968 for Heavy Attack Squadron 21 (VAH-21) for operation over South Vietnam. (Variant in photo)
DP-2H: P-2H converted for drone launch and control.
EP-2H: Single P-2H modified with UHF telemetry equipment instead of ASW systems.
NP-2H: Testbed conversion of P2V-H.
RB-69A: Five new built and two converted from P2V-7s for CIA covert operations, obtained with USAF help and operated by ROCAF/Taiwan's 34th Squadron. Aerial reconnaissance/ELINT platform, modular sensor packages fitted depended on the mission needs. Originally fitted with Westinghouse APQ-56 Side Looking Airborne Radar (SLAR), the APQ-24 search radar, the Fairchild Mark IIIA cameras, the APR-9/13 radar intercept receiver, the QRC-15 DF system, the APA-69A DF display, the APA-74 pulse analyser, the Ampex tape recorder, the System 3 receiver to intercept enemy communications, the APS-54 RWR, a noise jammer, the RADAN system doppler radar navigation, and others. In May 1959, an upgrade program known as Phase VI was approved, and added the ATIR air-to-air radar jammer, replacing APR-9/13 with ALQ-28 ferret system, the QRC-15, 3 14-channel recorders and 1 7-channel high speed recorder to record ELINT systems, the K-band receiver, the ASN-7 navigation computer replacing RADAN, and Fulton Skyhook system.
Neptune MR.1: British designation of P2V-5; 52 delivered.
CP-122 Neptune: RCAF designation of P2V-7.(jet pod not initially fitted to 25 P2V-7 aircraft delivered to RCAF, but subsequently retrofitted)
Kawasaki P-2J (P2V-Kai): Japanese variant produced by Kawasaki for JMSDF with T64 turboprop engines, various other improvements; 82 built.
P2V-3
Data from Combat Aircraft since 1945
General characteristics
- Crew: 9-11
- Length: 77 ft 10 in (23.72 m)
- Wingspan: 100 ft 0 in (30.48 m)
- Height: 28 ft 4 in (8.56 m)
- Wing area: 1,000 ft² (92.9 m²)
- Empty weight: 34,875 lb (15,819 kg)
- Max. takeoff weight: 64,100 lb (29,076 kg)
- Powerplant: 2 × Wright R-3350-26W Cyclone-18 radial engine, 3,200 hp (2,386 kW) wet each
- Propellers: 3 bladed propeller, 1 per engine
Performance
- Maximum speed: 278 kn (313 mph) (515 km/h)
- Cruise speed: 155 kn (174 mph) (286 km/h) (max)
- Range: 3,458 nmi (3,903 mi) (6,406 km)
Armament
- Rockets: 2.75 in (70 mm) FFAR in removable wing-mounted pods
- Bombs: 8,000 lb (3,629 kg) including free-fall bombs, depth charges, and torpedoes
P-2H (P2V-7)
Data from Combat Aircraft since 1945
General characteristics
- 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)
- Powerplant:
- 2 × Westinghouse J34-WE-34 turbojet, 3,400 lbf (15.1 kN) each
- 2 × Wright R-3350-32W Cyclone Turbo-compound radial engine, 3,700 hp (2,759 kW) wet each
- Propellers: 4 bladed propeller, 1 per engine
Performance
- Maximum speed: 316 kn (363 mp/h) (586 km/h) (all engines)
- Cruise speed: 180 kn (207 mp/h) (333 km/h) (max)
- Range: 1,912 nmi (2,157 mi) (3,540 km)
- Service ceiling: 22,400 ft (6,827 m)
Armament
- Rockets: 2.75 in (70 mm) FFAR in removable wing-mounted pods
- Bombs: 8,000 lb (3,629 kg) including free-fall bombs, depth charges, and torpedoes
Image size
2040x1318px 260.94 KB
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Great pic's and history!
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Keep it alive!