▁C ool idge ▁to ▁investigate ▁the ▁potential ▁of ▁private ▁and ▁commercial ▁av iation . ▁Harris ▁test ified ▁that ▁saf egu ards ▁would ▁have ▁to ▁be ▁implemented ▁to ▁ass ure ▁the ▁safety ▁of ▁air line ▁passengers ▁that ▁went ▁beyond ▁those ▁in ▁use ▁on ▁military ▁aircraft . ▁Harris ▁also ▁proposed ▁an ▁air line ▁connecting ▁the ▁west ▁coast ▁of ▁South ▁America ▁with ▁the ▁United ▁States . ▁In ▁response ▁to ▁his ▁suggestion , ▁in ▁ 1 9 2 9 ▁Pan ▁American ▁founded ▁Grace ▁Air ways , ▁a ▁joint ▁vent ure ▁between ▁Pan ▁American ▁World ▁Air ways ▁and ▁Grace ▁Sh ipping . ▁The ▁air line ▁operated ▁four ▁Fair child ▁FC - 2 ▁cabin ▁plan es . ▁At ▁Harris ' ▁suggestion ▁the ▁plan es ▁were ▁furn ished ▁with ▁to ile ts , ▁a ▁first ▁for ▁any ▁aircraft . ▁The ▁FC - 2 s ▁were ▁the ▁first ▁aircraft ▁carrying ▁the ▁American ▁flag ▁to ▁fly ▁scheduled ▁routes ▁south ▁of ▁the ▁Equ ator . ▁Between ▁ 1 9 2 9 ▁and ▁ 1 9 3 9 ▁Harris ▁was ▁based ▁in ▁Peru , ▁where ▁he ▁held ▁the ▁position ▁of ▁Vice - Pres ident ▁and ▁Chief ▁Oper ations ▁Officer ▁of ▁Grace ▁Air ways . ▁ ▁World ▁War ▁II ▁With ▁the ▁on set ▁of ▁World ▁War ▁II ▁Harris ▁was ▁asked ▁to ▁go ▁to ▁Washington ▁D . C . ▁where , ▁as ▁a ▁civil ian , ▁he ▁set ▁up ▁the ▁Plan ▁Section ▁of ▁the ▁Army ▁Air ▁Transport ▁Command . ▁He ▁accepted ▁a ▁commission ▁as ▁Colonel ▁in ▁the ▁Air ▁Transport ▁Command ▁in ▁ 1 9 4 2