▁to ▁begin ▁manufact uring ▁his ▁steam ▁locomot ive ▁k it . ▁Donald ▁A ches on ▁became ▁Bow ser ' s ▁silent ▁partner ▁providing ▁enough ▁working ▁capital ▁to ▁put ▁the ▁model ▁k it ▁into ▁production . ▁The ▁first ▁ad s ▁for ▁Bow ser ' s ▁ 4 - 8 - 2 ▁Mountain ▁HO ▁scale ▁steam ▁locomot ive ▁k it ▁appeared ▁in ▁Model ▁Rail ro ader ▁in ▁ 1 9 4 8 . ▁Though ▁the ▁k it ▁was ▁now ▁available ▁for ▁purchase , ▁design ▁fla ws ▁were ▁discovered ▁in ▁the ▁electric ▁motor ▁used ▁to ▁power ▁the ▁model . ▁Bow ser ▁red es igned ▁the ▁motor ▁from ▁scratch , ▁calling ▁this ▁new ▁design ▁the ▁" Super mot or ." ▁ ▁The ▁decision ▁to ▁sell ▁through ▁distrib utors ▁instead ▁of ▁direct ▁sales ▁to ▁consum ers ▁further ▁hurt ▁Bow ser ' s ▁financial ▁position . ▁Non eth eless , ▁a ▁new ▁ 4 - 6 - 2 ▁Pacific ▁based ▁on ▁New ▁York ▁Central ▁Rail road ▁class ▁K - 1 1 ▁locomot ives ▁was ▁put ▁into ▁production . ▁Learning ▁from ▁the ▁Mountain ▁project , ▁many ▁parts ▁were ▁cast ▁from ▁zam ac ▁instead ▁of ▁br ass , ▁lower ing ▁cost ▁and ▁since ▁parts ▁could ▁be ▁produced ▁in ▁autom ated ▁die - cast ing ▁machines . ▁The ▁new ▁K - 1 1 ▁Pacific ▁locomot ive ▁k it ▁was ▁brought ▁to ▁market ▁in ▁ 1 9 5 1 , ▁and ▁introduced ▁many ▁improvements ▁over ▁the ▁previous ▁offering . ▁▁ ▁Despite ▁sales ▁being ▁hurt ▁by ▁post war ▁infl ation ▁and ▁a ▁general ▁economic