Lockheed PV-2 Harpoon

Lockheed PV-2 Harpoon
Name	Lockheed PV-2 Harpoon
Caption	PV-2 Harpoon in US Navy markings
Type	Maritime patrol and anti-submarine patrol bomber
Manufacturer	Lockheed Corporation
First flight	March 1943
Introduced	1944
Retired	1950s (US service)
Primary user	United States Navy
Produced	1943–1945
Number built	533

Lockheed PV-2 Harpoon The Lockheed PV-2 Harpoon was an American patrol bomber developed during World War II for the United States Navy to replace earlier Lockheed Hudson-derived designs. It combined a reinforced airframe, increased internal fuel capacity, and heavier ordnance carriage to perform long-range anti-submarine warfare and maritime reconnaissance missions in the Pacific and Atlantic theaters. The type saw limited combat service late in World War II and remained in postwar use with several foreign air arms and civilian operators.

Design and Development

The PV-2 emerged from Lockheed's experience with the Lockheed Ventura and earlier twin-engined patrol aircraft, guided by requirements issued by the Bureau of Aeronautics and the United States Navy Bureau of Ordnance during 1942. Lead designers at Lockheed Corporation retained the basic low-wing, twin-engine configuration powered by Pratt & Whitney R-2800 radial engines, while enlarging wing area and fuel tanks to extend range for operations across the Pacific Ocean and to increase payload for anti-shipping strikes sought after following lessons from the Battle of the Atlantic. Structural strengthening addressed fatigue issues encountered on Ventura variants during intensive maritime patrols supporting Convoy PQ, Operation Torch, and Operation Husky-era operations. Armor and self-sealing fuel tanks reflected tactical requirements set by the United States Navy and influenced by operational reports from United States Army Air Forces maritime units.

Aerodynamic refinements included revised wing planform, larger flaps, and increased bomb bay volume to carry bombs, depth charges, and external stores. Avionics suites were upgraded to incorporate search radar compatible with systems used by Naval Aviation squadrons conducting night anti-submarine patrols alongside escorts such as USS Bogue (CVE-9), USS Card (CVE-11), and HMS Tracker (D24). Production was handled at Lockheed’s manufacturing facilities and subcontractors under wartime contracts from the United States Navy.

Operational History

PV-2 Harpoons entered squadron service in 1944 and were assigned to Patrol Bombing Squadron units operating from island bases across the Central Pacific and South Pacific. Operational deployment included long-range surveillance, convoy escort, anti-submarine patrols, and occasional strike missions against interdicted shipping during late World War II campaigns such as operations supporting Guadalcanal Campaign follow-on patrols and Marianas area coverage. Crews trained with fleet carriers and escort carriers including USS Enterprise (CV-6)-operating air groups for cooperative anti-submarine warfare (ASW) tactics developed in concert with Tactical Air Command-aligned doctrines.

Although the PV-2 arrived after the peak of the submarine threat in the Atlantic, it saw use in patrol sectors coordinating with Royal Navy and Royal Canadian Navy escort groups, performing search and attack sorties against U-boat contacts reported from convoys traversing the North Atlantic. Postwar drawdowns led to the rapid retirement of PV-2s from frontline United States Navy units, with many airframes transferred to allied militaries, civil operators, and aerial survey companies involved with postwar reconstruction and mapping projects for agencies such as the Pan American World Airways and municipal surveying units.

Variants

- PV-2: Standard production maritime patrol and anti-submarine version equipped with R-2800 engines, internal bomb bay, reinforced wings, and radar provisions accepted by the United States Navy in 1944. - PV-2D/PV-2H: Field and factory conversions with specialized avionics, additional fuel tanks, or modified bomb racks catering to export customers and postwar civilian adaptations negotiated with agencies such as United Aircraft Corporation-linked maintenance facilities. - Civil conversions: Postwar remanufactures for aerial survey, firefighting, and cargo tasks operated under civil registrations issued by national aviation authorities including the Civil Aeronautics Administration and successor agencies.

Operators

- United States Navy — primary wartime and immediate postwar operator deploying PV-2s with patrol bombing squadrons. - Royal Canadian Air Force — operated transferred PV-2s in coastal reconnaissance roles during the late war and early occupation period. - Republic of China Air Force — received ex-US aircraft for maritime patrol tasks during the late 1940s and early 1950s. - Civil operators — companies and government survey organizations in the United States, Canada, and South American states employed converted PV-2s for aerial survey, mapping, and cargo duties.

Surviving Aircraft and Preservation

A number of PV-2 airframes survive in museums, private collections, and as airworthy warbird restorations. Preserved examples are displayed in institutions such as the National Naval Aviation Museum, the Canada Aviation and Space Museum, and regional aviation museums that maintain examples for public education and airshow demonstration flights. Restoration projects are often supported by volunteer groups with expertise drawn from former Naval Aviation personnel, aerospace engineers formerly employed by Lockheed Martin-linked organizations, and historic aircraft registries. Surviving PV-2s are significant artifacts illustrating the evolution from prewar patrol types to specialized ASW platforms used by the United States Navy during and after World War II.

Specifications (PV-2)

- Crew: 6–8 (pilot, co-pilot, navigator, radio operator, gunners) - Length: 60 ft 2 in (18.34 m) - Wingspan: 85 ft 3 in (25.98 m) - Height: 20 ft 1 in (6.12 m) - Powerplant: 2 × Pratt & Whitney R-2800 Double Wasp radial engines, approx. 2,000 hp each - Maximum speed: ~300 mph (480 km/h) - Range: ~2,250 mi (3,620 km) ferry, combat radius reduced by ordnance load - Service ceiling: ~24,000 ft (7,315 m) - Armament: multiple .50 in (12.7 mm) machine guns in nose and dorsal positions, internal bomb bay for bombs or depth charges, external hardpoints for rockets or additional ordnance

Category:World War II aircraft of the United States