▁December ▁ 1 9 4 0 , ▁and ▁was ▁power ed ▁by ▁a ▁V ulture ▁II , ▁although ▁as ▁in ▁the ▁case ▁of ▁the ▁first ▁prototype , ▁a ▁V ulture ▁V ▁was ▁later ▁installed . ▁ ▁Production ▁In ▁order ▁to ▁avoid ▁ups et ting ▁the ▁H urr icane ▁lines , ▁production ▁was ▁sub - cont ract ed ▁to ▁Av ro ▁( another ▁company ▁in ▁the ▁Haw ker ▁group ) ▁in ▁Manchester ▁and ▁C un l iffe - O wen ▁A ircraft ▁in ▁East le igh , ▁with ▁orders ▁for ▁ 1 , 7 6 0 ▁and ▁ 2 0 0 ▁respectively ▁being ▁placed ▁in ▁ 1 9 3 9 . ▁However , ▁only ▁one ▁of ▁these ▁aircraft , ▁from ▁Av ro , ▁was ▁ever ▁built ▁and ▁flow n , ▁this ▁being ▁R 7 9 3 6 . ▁Short ly ▁after ▁its ▁first ▁flight ▁at ▁Wood ford , ▁on ▁ 2 9 ▁August ▁ 1 9 4 1 , ▁the ▁V ulture ▁programme ▁was ▁abandoned , ▁followed ▁closely ▁by ▁the ▁can cellation ▁of ▁the ▁T orn ado ▁order . ▁At ▁that ▁time ▁four ▁aircraft ▁were ▁at ▁various ▁stages ▁of ▁production ▁at ▁the ▁Av ro ▁plant ▁at ▁Y ead on , ▁West ▁York shire . ▁ ▁V ulture ▁engine ▁The ▁V ulture ▁was ▁effectively ▁cancel led ▁by ▁Roll s - Ro y ce ▁in ▁July ▁ 1 9 4 1 , ▁partly ▁due ▁to ▁the ▁problems ▁experienced ▁in ▁its ▁use ▁on ▁the ▁Av ro ▁Manchester , ▁but ▁mostly ▁to ▁free ▁up ▁resources ▁for ▁Mer lin