Delivered to the US Navy as P2V-7 135620 in 1955. Converted to a P2V-7S in 1959/60. Redesignated as a P-2H in 1962. Converted to an AP-2H gunship for use in Vietnam in 1967. To the Pima Air Museum in 1975.

Seen long before restoration for the Pima Air & Space Museum, this is the only surviving example of four modified Neptunes operated by VAH-21 on night interdiction work over the Mekong Delta. An extensive electronic sensor suite replaced the ASW gear, including LLTV, SLAR and equipment to detect vehicle ignition systems. Armed with twin 20 mm cannon in tail plus two minigun pods and four bombs underwing.