Emerson Electric Co. Electronics and Space Division M-21/MAMEE armament system. Usually installed in pairs on Bell H-1 helicopters, the system provided two fixed M-158A 2.75-inch rocket launchers, 2 GAU-2B 7.62mm miniguns, and an AN/ARN-89 radio direction finder. From Vertiflite, November/December 1976 (page 46).
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