Tag Archives: tear drop turret

Illustrations and performance details of the Erco 250TH Tear Drop Turrets mounted in the PB4Y-2 Privateer from Aircrewman’s Gunnery Manual, Aviation Training Division, Office of the Chief of Naval Operations, U.S. Navy, 1944. ERCO TEAR DROP TURRET ERCO 250TH-1 AND … Continue reading →