Junkers Jumo 213

The Junkers Jumo 213 was a liquid-cooled V12 aircraft engine of the Second World War, developed from the earlier Jumo 211. Its two main changes were a pressurised cooling system that needed much less coolant, so the engine could be smaller and lighter, and a number of improvements that let it run at higher speeds, which raised power by more than 500 hp. The main production 213A, with the same 150 mm by 165 mm bore and stroke and 35 litre displacement as the 211, delivered 1,750 PS at 3,250 rpm. It first ran in 1940 but was only declared production quality in 1943, and Allied bombing disrupted output in 1944. The E and F models were in high demand for late-war aircraft, including the Ju 188, Ju 388, Fw 190D and Ta 152H.