Lockheed P2V-5 Neptune, at Evergreen Aviation Museum, McMinville OR.
Early in World War II, German U-boats claimed a heavy toll on Allied ships, which was stemmed by the presence of patrolling aircraft. Lockheed developed its P2V Neptune to combat this menace, but due to priority delays, it did not fly until after the war. The Neptune was the last radial-engine bomber to serve in the U.S., and one of the first to fly with both piston and jet engines. A P2V nicknamed “the Truculent Turtle” set a record in 1946 for the longest un-refueled flight—a record unbroken until 1962.
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