▁– ▁assistance ▁ ▁Joseph ▁L orge ▁–   ass istance ▁ ▁Art work ▁ ▁D ust in ▁Cond ren ▁–   cover ▁phot ography ▁ ▁Sarah ▁Sch i esser ▁– ▁design , ▁layout ▁ ▁Ch arts ▁ ▁Notes ▁ ▁References ▁ ▁Category : 2 0 1 9 ▁albums ▁Category : Big ▁Th ief ▁albums ▁Category : 4 AD ▁albums ▁Category : Al bum s ▁recorded ▁at ▁Son ic ▁R anch ▁Category : Al bum s ▁recorded ▁at ▁Sound ▁City ▁Studios <0x0A> </s> ▁The ▁Jacob s ▁R - 7 5 5 ▁( company ▁design ation ▁L - 4 ) ▁is ▁a ▁seven - cy l inder , ▁air - co o led , ▁radial ▁engine ▁for ▁aircraft ▁manufact ured ▁in ▁the ▁United ▁States ▁by ▁the ▁Jacob s ▁A ircraft ▁Engine ▁Company . ▁ ▁Design ▁and ▁development ▁ ▁The ▁R - 7 5 5 ▁was ▁first ▁run ▁in ▁ 1 9 3 3 ▁and ▁was ▁still ▁in ▁production ▁in ▁the ▁ 1 9 7 0 s . ▁With ▁a ▁bore ▁and ▁stroke ▁of ▁ 5 . 2 5 ▁in ▁× ▁ 5 ▁in ▁( 1 3 3   mm ▁× ▁ 1 2 7   mm ) ▁the ▁disp lacement ▁was ▁ 7 5 7 ▁cu ▁in ▁( 1 2 . 4 ▁L ), ▁power ▁r anged ▁from ▁ 2 0 0   hp ▁to ▁ 3 5 0   hp ▁( 1 5 0   k W ▁- ▁ 2 6 0   k W ). ▁The ▁engine ▁features ▁steel ▁cyl ind ers ▁with