FTA: “The B-29 had entered service in a little over three years since design work began. "It's very quick, even for World War Two standards," says Kinney” Not

FTA: “The B-29 had entered service in a little over three years since design work began. "It's very quick, even for World War Two standards," says Kinney” Not for German standards. Near the end of the war, their schedules were frantic, for example https://en.wikipedia.org/wiki/Heinkel_He_162_Volksjäger#Volksjäger https://en.wikipedia.org/wiki/Heinkel_He_162_Volksjäger#Volk...: “On 8 September 1944, the requirement was issued to industry; bidders were required to submit their basic designs within ten days while quantity production of the aircraft was to commence by 1 January 1945 […] During January 1945, the Luftwaffe formed an Erprobungskommando 162 ("Test Unit 162") evaluation group to which the first 46 aircraft were delivered“ I remember reading about even faster development cycles, but cannot find links.