ed ▁to ▁the ▁aut umn ▁of ▁ 1 9 4 1 ▁while ▁attempts ▁were ▁made ▁to ▁c ure ▁the ▁reli ability ▁problems ▁of ▁the ▁T aur us , ▁and ▁later ▁had ▁to ▁be ▁tempor arily ▁revers ed ▁because ▁of ▁short ages ▁of ▁T win ▁W asp ▁engines . ▁The ▁T win ▁W asp ▁was , ▁however , ▁strongly ▁preferred , ▁especially ▁for ▁over se as ▁post ings , ▁because ▁of ▁its ▁much ▁greater ▁reli ability . ▁In ▁later ▁models ▁of ▁the ▁T aur us ▁engine ▁the ▁reli ability ▁problems ▁were ▁mostly ▁c ured ▁by ▁a ▁change ▁in ▁the ▁cyl inder ▁manufact uring ▁process , ▁although ▁the ▁engine ▁kept ▁a ▁poor ▁reputation , ▁and ▁in ▁the ▁Alb ac ore ▁the ▁T aur us ▁engine ▁was ▁retained ▁until ▁the ▁end ▁of ▁that ▁aircraft ' s ▁production ▁in ▁ 1 9 4 3 . ▁ ▁There ▁were ▁no ▁other ▁oper ational ▁applications ▁of ▁the ▁T aur us ▁engine , ▁because ▁its ▁initial ▁reli ability ▁problems ▁disc ou rag ed ▁the ▁development ▁of ▁T aur us - power ed ▁aircraft , ▁and ▁because ▁later - war ▁combat ▁aircraft ▁demanded ▁more ▁powerful ▁engines . ▁Its ▁production ▁lines ▁were ▁closed ▁down ▁in ▁favour ▁of ▁the ▁Her cules ▁engine . ▁ ▁Vari ants ▁T aur us ▁II ▁ 1 9 4 0 ▁ 1 1 1 0 ▁h p ▁at ▁ 3 1 0 0 ▁r pm ▁with ▁ 4 . 2 5 ▁lb ▁boost ▁@ ▁ 4 0 0 0 ▁ft . ▁ ▁T aur us ▁III ▁ 1