Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: I te timatanga o te 1937, i whakahaua e te USAAC a Curtiss ki te whakarereke i tetahi P-36 ki te miihini Allison V-1710 hou me te wai-whakawera-turbo-supercharged me te 1,150 hp (860 kW). Ko te Curtiss XP-37, i whakamahia e te waka rererangi te tauira 75 taketake me nga radiator i whakauruhia ki nga taha o te fuselage huri noa i te miihini. I nekehia te kokopi ki muri rawa kia whai waahi ai nga radiator me te punaha turbocharger nui, kia rite ai te rererangi. I rere te waka rererangi i te Paenga-whawha 1937, tae atu ki te 340 mph (550 km / h) i te 20,000 ft (6,100 m). Ahakoa he tino kore pono te turbo-supercharger me te tirohanga mai i te kokopi i te tangohanga me te taunga kaore i te noho, i tino miharo te USAAC ki te mahinga i whakaaria mai ki te tono 13 whakamatautau YP-37s me nga waahanga hei utu mo te kirimana $ 531,305.12. Na te pai ake o te aerodynamics me te turbo-supercharger pono ake, i rere tuatahi te rererangi i te Pipiri 1939. Heoi, i noho kore te powerplant pono, a ka whakakorehia te kaupapa i roto i te painga o tetahi atu hoahoa Curtiss, te P-40.  Pātai: I tehea tau i rere tuatahi ai te rererangi whakapai ake?
Ko te tau 1939