50 Cal Vs. 20mm Engine Damage in WW2 June 26, 2023 lalita History, Military History History Documentaries How well does a Pratt and Whitney R-2800 absorb hits from a 50 caliber (13mm) machine gun? What about a 20mm cannon? What are the chances of killing the engine in one shot? Credit Greg’s Airplanes and Automobiles Please support our Sponsors here :