▁field ▁[ s ic ], ▁this ▁morning ▁and ▁made ▁stops ▁at ▁Bol ling ▁field ▁[ s ic ] ▁and ▁M idd let own , ▁Pa . ▁The ▁last ▁entry ▁was ▁ 3 ▁p . ▁m ., ▁on ▁leaving ▁M idd let own . ▁He ▁was ▁fer ry ing ▁the ▁empty ▁ship ▁to ▁Cleveland ▁for ▁use ▁in ▁the ▁mail ▁service ." ▁Lang ley ▁Field ▁authorities ▁said ▁that ▁Mc Al ister ▁joined ▁the ▁Air ▁Corps ▁as ▁an ▁assistant ▁engineering ▁officer ▁one ▁year ▁ago , ▁and ▁that ▁he ▁was ▁assigned ▁to ▁air ▁mail ▁duty ▁recently . ▁ ▁He ▁was ▁flying ▁Curt iss ▁P - 6 E ▁Haw k , ▁ 3 2 - 2 7 0 . http :// www . jo eb aug her . com / us af _ serial s / 1 9 3 0 . html ▁▁▁▁▁▁▁▁ 1 4 ▁April ▁The ▁Wright ▁Cy clone - power ed ▁prototype ▁Pol ik arp ov ▁Ts KB - 1 2 ▁is ▁dam aged ▁when ▁one ▁of ▁the ▁landing ▁g ear ▁legs ▁col laps es ▁while ▁tax i ing . ▁It ▁first ▁fle w ▁on ▁ 3 0 ▁December ▁ 1 9 3 3 . ▁▁ 1 5 ▁April ▁While ▁flying ▁the ▁U . S . ▁Mail , ▁ 1 st ▁L t . ▁Arthur ▁L ah man ' s ▁engine ▁on ▁his ▁Douglas ▁O - 3 8 B , ▁ 3 1 - 4 3 5 , ▁c / n ▁ 9 9 5 , ▁' 2 2 ', ▁of ▁Head quarters ▁Command , ▁Bol