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P-3 Orion

The Lockheed P-3 Orion is a patrol aircraft of the United States military used primarily for anti-submarine warfare.

P-3 Orion of the US Navy.

The first production version, designated P3V-1, first flew 15 April 1961, but by the time the first deliveries were made in 1962, the unified designation system made this the P-3.

Over the years, many variants have been developed.

The P-3 Orion has found special use as an earth-science suborbital research platform for NASA. Known as callsign; NASA 426, this aircraft is located at Goddard Space Flight Center's Wallops Island Flight Facility, Virginia.