2 ) ▁was ▁for ▁ 2 0 0 ▁aircraft , ▁the ▁company ▁delivered ▁ 3 0 ▁aircraft ▁a ▁month , ▁and ▁ 5 7 ▁J N - 4 D ' s ▁in ▁October ▁ 1 9 1 8 . ▁ ▁The ▁company ▁went ▁d orm ant ▁until ▁ 1 9 2 8 ▁when ▁it ▁started ▁production ▁of ▁the ▁Card inal ▁and ▁later ▁the ▁Card inal ▁Senior . ▁The ▁company ▁ordered ▁ 1 0 0 ▁ 1 0 0   hp ▁K inner ▁K - T ▁radial ▁engines ▁to ▁power ▁the ▁light ▁mon op lane , ▁but ▁production ▁ceased ▁in ▁ 1 9 3 1 ▁in ▁the ▁peak ▁of ▁the ▁de pression . ▁ ▁The ▁company ▁continued ▁to ▁build ▁parts ▁while ▁aircraft ▁production ▁was ▁not ▁vi able . ▁It ▁special ized ▁in ▁supp lying ▁components ▁for ▁the ▁Engineering ▁section ▁at ▁Wright ▁Field . ▁In ▁the ▁bu il dup ▁to ▁World ▁War ▁II , ▁the ▁company ▁developed ▁its ▁own ▁bi plane ▁tra iner ▁the ▁St . ▁Louis ▁P T - 3 5 , ▁which ▁lost ▁to ▁the ▁Bo eing ▁Ste ar man . ▁It ▁also ▁produced ▁a ▁low ▁wing ed ▁tra iner ▁to ▁comp ete ▁in ▁an ▁Army ▁contract , ▁the ▁St . ▁Louis ▁P T - LM - 4 . ▁It ▁lost ▁out ▁to ▁the ▁Fair child ▁P T - 1 9 ▁model . ▁ ▁The ▁company ▁was ▁put ▁into ▁service ▁again ▁for ▁World ▁War ▁II ▁production . ▁The ▁company ▁sub cont ract ed ▁aircraft ▁parts ▁for ▁the ▁effort ▁and ▁built ▁ 4 4