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Fw 190 D-9 injecting power
Hello Pilot
It appears that there were two systems used on the Fw 190 D-9 that increased the normal power of the Jumo 213 A-1. The first was Ladedruckssteigerungs-Rüstsatz which began to be fitted in September 1944 and which was a Junkers modification that increased emergency power from 1,750 PS to 1,900 PS up to 5,000 meters for 10 minutes and allowed the Start- und Notliestung setting (1,750 PS) to be used for 30 minutes and the Steig- und Kampfleistung setting (1,620 PS) to be used indefinitely. The second was MW 50 that together with the Ladedruckssteigerungs-Rüstsatz increased emergency power to 2,100 PS. This could not be used for take-off but only in flight up to 5,000 meters for 10 minutes. I have read that there were two MW 50 systems used on the Fw 190 D-9, one being a low pressure system known as the Oldenburg system which began to be fitted in November 1944 and the other a high pressure system that began to be fitted in January 1945 but I have no idea if there was a difference in output nor if this changed depending if B4 or C3 fuel was used. The MW 50 settings that I have mentioned above are those given for the Oldenburg system and B4 fuel.
Horrido!
Leo
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