1 9 3 0 s . ▁ ▁Biography ▁Cou z inet ' s ▁father ▁was ▁a ▁school ▁teacher , ▁and ▁from ▁a ▁very ▁young ▁age ▁he ▁was ▁fasc in ated ▁by ▁av iation ▁and ▁obser ving ▁the ▁flight ▁of ▁sw all ows . ▁In ▁ 1 9 2 1 ▁he ▁en rolled ▁at ▁the ▁É cole ▁N ationale ▁Sup érieure ▁d ' Ar ts ▁et ▁M ét iers ▁( EN S AM ) ▁( Sch ool ▁of ▁Arts ▁and ▁C raft s ) ▁at ▁Ang ers ▁( with ▁Louis ▁B éch ere au ), ▁where ▁he ▁both ▁graduated ▁and ▁file d ▁several ▁av iation ▁pat ents . ▁In ▁ 1 9 2 4 ▁he ▁attended ▁the ▁É cole ▁sup érieure ▁de ▁l ’ a ér onaut ique ▁( Gr adu ate ▁School ▁of ▁Aer onaut ics ). ▁He ▁fin anced ▁his ▁studies ▁by ▁working ▁in ▁a ▁tur bine ▁factory , ▁before ▁joining ▁the ▁French ▁Air ▁Force ▁( Arm ée ▁de ▁l ' air ) ▁in ▁November ▁ 1 9 2 5 , ▁where ▁he ▁became ▁a ▁lieutenant . ▁ ▁In ▁ 1 9 2 7 , ▁he ▁built ▁the ▁Cou z inet ▁ 1 0 ▁Arc - en - C iel ▁( R ain bow ) ▁No ▁ 1 , ▁a ▁modern ▁shape ▁for ▁its ▁time . ▁It ▁was ▁a ▁three - eng ined ▁mon op lane ▁with ▁thick ▁wings ▁and ▁a ▁t aper ed ▁body ▁and ▁tail plane , ▁which ▁was ▁characteristic ▁of ▁all ▁Arc - en - C iels ▁to ▁follow