o ard , ▁all ▁but ▁one ▁were ▁missing ▁and ▁assumed ▁tra pped ▁in ▁the ▁over turn ed ▁h ull . ▁Corpor al ▁W . ▁M . ▁Barry ▁was ▁unh urt . ▁D ivers ▁are ▁sent ▁down ▁to ▁try ▁to ▁recover ▁the ▁bodies . ▁ 7 ▁February ▁So le ▁Bo eing ▁XP - 1 5 , ▁( B oe ing ▁Model ▁ 2 0 2 ), ▁N X 2 7 0 V , ▁c / n ▁ 1 1 5 1 , ▁accepted ▁by ▁the ▁U . S . Ar my ▁for ▁testing ▁at ▁Wright ▁Field ▁but ▁never ▁actually ▁purchased , ▁so ▁no ▁USA AC ▁serial , ▁suff ers ▁prop eller ▁bla de ▁failure ▁during ▁a ▁high - speed ▁dash , ▁un bal anced ▁engine ▁tears ▁from ▁mount s . ▁ 2 8 ▁February ▁ ▁The ▁sole ▁V ought ▁X O 4 U - 1 , ▁Bu No ▁A - 8 6 4 1 , ▁first ▁flow n ▁in ▁February ▁ 1 9 3 1 , ▁crashes ▁this ▁date , ▁when ▁test ▁pilot ▁Carl ▁Har per ▁is ▁unable ▁to ▁recover ▁from ▁a ▁spin . ▁Initial ly ▁tra pped ▁in ▁the ▁co ck pit ▁by ▁the ▁in ert ia ▁of ▁the ▁spin , ▁he ▁esc apes ▁to ▁par ach ute ▁safely ▁as ▁the ▁air frame ▁comes ▁down . ▁ 6 ▁March ▁Following ▁landing ▁tri als ▁on ▁a ▁sim ulated ▁car rier ▁deck ▁at ▁NAS ▁Nor folk , ▁Virginia , ▁the ▁sole ▁V ought ▁X F 2 U - 1 , ▁Bu No ▁A - 7