▁M IT ▁before ▁choosing ▁an ▁open ▁co ck pit ▁design . ▁ ▁Design ▁The ▁A MC ▁was ▁a ▁two - bay ▁bi plane ▁flying ▁boat ▁with ▁an ▁al umin um ▁h ull . ▁The ▁spr uce ▁woods par ▁wings ▁were ▁fabric ▁covered ▁with ▁small ▁tip ▁flo ats ▁for ▁stability . ▁The ▁engine ▁was ▁mounted ▁just ▁below ▁the ▁top ▁wing ▁in ▁a ▁push er ▁configuration ▁with ▁a ▁forward - mount ed ▁radi ator . ▁ ▁Two ▁ 5 0 - g all on ▁stream lined ▁main ▁fuel ▁t anks ▁sat ▁on ▁the ▁top ▁wing ▁on ▁either ▁side ▁of ▁the ▁engine ▁with ▁a ▁ 7 0 - g all on ▁fus el age - mount ed ▁reserve . ▁The ▁h ull ▁was ▁constructed ▁of ▁eigh teen ▁forms ▁and ▁five ▁wat ert ight ▁bulk head s . ▁ ▁It ▁had ▁two ▁rows ▁of ▁small ▁ben ch ▁seats ▁for ▁passengers ▁in ▁the ▁front . ▁ ▁The ▁pilot ▁and ▁mechan ic ▁sat ▁slightly ▁raised ▁in ▁individual ▁open ▁co ck p its ▁behind ▁the ▁passengers , ▁beneath ▁the ▁main ▁wing . ▁The ▁h ull ▁used ▁Al co a ▁ 1 7 S ▁al umin um ▁treated ▁with ▁pot ass ium ▁nit rate ▁with ▁C anton ▁fl annel / As ph alt ▁wat ert ight ▁se als ▁and ▁V als par ▁al umin um ▁paint . ▁ ▁Oper ational ▁history ▁The ▁A MC ▁was ▁intended ▁to ▁replace ▁the ▁Aer om ar ine ▁ 7 5 ▁flying ▁boats ▁used ▁by ▁Aer om ar ine ▁Air ways ▁in ▁service ▁between ▁New ▁York