Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: I rere tuatahi te tauira i te 6 o Mei 1935, ka eke ki te 281 mph (452 km / h) i te 10,000 ft (3,000 m) i nga rerenga whakamatautau tuatahi. I te 27 o Mei 1935, ka rere te tauira ki Wright Field, Ohio, ki te whakataetae i te USAAC fly-off mo te kaiwhawhai noho-takitahi hou, engari i whakaroa te whakataetae na te mea i hinga te urunga o Seversky i tana huarahi ki reira. I whai hua a Curtiss i te roa ki te whakakapi i te miihini kore pono ki te Wright XR-1820-39 Cyclone e whakaputa ana i te 950 hp (710 kW) me te mahi ano i te fuselage, me te taapiri i nga matapihi o muri ki te whakapai ake i te tirohanga. Ko te tauira hou i tohua hei Tauira 75B me te putanga R-1670 i tohua hei Tauira 75D. I te mutunga ka rere te rererangi i te Paenga-whāwhā 1936. Heoi, kaore i taea e te miihini hou te tuku i tana mana kua tohua, a ko te rererangi anake i eke ki te 285 mph (459 km / h).  Pātai: He aha te tau i rere ai te tauira tuatahi?
Ko te tau 1936