In 1956 the gun was standardized as the M61 20mm cannon and entered service with both the United States Army and Air Force. With the introduction of helicopters to the modern battlefield ...

Service: USAF Armament: 20mm cannon; 4x AIM-9 Sidewinder; 4x AIM-120 AMRAAM; 8x AIM-120 AMRAAM Propulsion: Two Pratt & Whitney F100-PW-220 or 229 turbofan engines with afterburners Speed ...

This is one of the 20mm Cannon Shells fired by Mosquito II DD612, flown by my father (Group Captain R G Slade) on the night of 22-8-1942. My father and his navigator shot down a Dornier 217 E-4 U5 ...