' s ▁engine ers . ▁ ▁The ▁Army ▁Air ▁Force , ▁Navy , ▁and ▁Bureau ▁of ▁Aer onaut ics ▁also ▁commission ed ▁and ▁super vised ▁films . ▁ ▁Anim ations ▁were ▁written ▁to ▁train ▁pil ots ▁and ▁ground ▁crew men ▁about ▁The ▁Occ l ud ed ▁Front s , ▁Th under st orm s , ▁and ▁The ▁W arm ▁Front . ▁Because ▁of ▁the ▁sensitive ▁content ▁displayed ▁in ▁A ircraft ▁Wood ▁Rep air , ▁the ▁word ▁“ RE ST RI CT ED ” ▁was ▁the ▁first ▁word ▁displayed ▁in ▁the ▁film ▁which ▁discussed ▁the ▁type ▁of ▁gl ue ▁used ▁for ▁wooden ▁aircraft . ▁ ▁Other ▁films ▁made ▁to ▁help ▁train ▁pil ots ▁included ▁Theory ▁of ▁the ▁C - 1 ▁AUT O PI L OT : ▁Part ▁One ▁Basic ▁Princi ples ▁which ▁introduced ▁pil ots ▁to ▁the ▁aut op il ot ▁function ▁which ▁was ▁new ▁to ▁aircraft ▁at ▁the ▁time . ▁ ▁W ings ▁Eng ines ▁F us el age ▁T ail ▁was ▁a ▁short ▁film ▁that ▁taught ▁serv ic emen ▁how ▁to ▁best ▁identify ▁aircraft ▁quickly . ▁ ▁The ▁Navy ▁did ▁a ▁similar ▁film ▁called ▁The ▁ 3 - Point ▁System ▁which ▁trained ▁serv ic emen ▁how ▁to ▁identify ▁U . S . ▁cru is ers . ▁R ules ▁of ▁the ▁N aut ical ▁Road ▁was ▁a ▁naval ▁training ▁film ▁ge ared ▁towards ▁officers ▁that ▁re created ▁a ▁historical ▁cat ast rop he , ▁which ▁was ▁meant ▁to ▁encou rage ▁officers ▁to ▁study ▁na ut ical ▁rules ▁and ▁principles . ▁ ▁The ▁most