Lockheed AP-2H Neptune

Pima Air and Space Museum Aircraft

Manufacturer
Lockheed
Markings
VAH-21, Sangley Point, Philippine Islands and Cam Ranh Bay South Vietnam, 1968
Designation
AP-2H
Serial Number
135620

Lockheed AP-2H Neptune

Designed as a long-range anti-submarine patrol plane the Neptune first flew on May 17, 1945 and P2V-1s and -2s entered service with the U. S. Navy in March 1947. Steady technological upgrades and new orders kept the Neptune in production until April 1962. The final production version, the P2V-7 (later P-2H), began coming off the assembly line in 1954 and was the first version built with underling jet engines. The AP-2H designation was applied to four heavily modified SP-2H aircraft for a special program during the Vietnam War. This program, the Trails Roads Interdiction Multisensor (TRIM) Project was designed to use then new technologies such as FLIR (Forward Looking Infra-Red) and LLLTV (Low Light Level Television) to track and attack North Vietnamese supplies and troops along the Ho Chi Minh Trail.

Specifications
Wingspan 103 ft 10 in
Length 81 ft 7 in
Height 29 ft 4 in
Weight 75,500 lbs (loaded)
Max. Speed 345 mph
Service Ceiling 22,000 ft
Range 2,200 miles
Engines 2 Wright R-3350-32W, 3,500 hp each
Crew 9