▁to ▁work ▁on ▁the ▁new ▁Church ill ▁tank . ▁Despite ▁a ▁bomb ing ▁ra id ▁in ▁August ▁ 1 9 4 0 , ▁in ▁which ▁ 3 9 ▁employees ▁were ▁killed , ▁it ▁was ▁taken ▁from ▁specification ▁to ▁production ▁in ▁less ▁than ▁a ▁year , ▁and ▁assemble d ▁there ▁( as ▁well ▁as ▁at ▁other ▁sites ). ▁More ▁than ▁ 5 , 6 0 0 ▁Church ill ▁t anks ▁were ▁built . ▁L ut on ▁also ▁produced ▁around ▁ 2 5 0 , 0 0 0 ▁l or ries ▁for ▁the ▁war ▁effort , ▁alongside ▁the ▁new ▁Bed ford ▁D unst able ▁plant , ▁which ▁was ▁opened ▁in ▁ 1 9 4 2 , ▁with ▁Bed ford ▁designs ▁being ▁common ▁in ▁British ▁use . ▁As ▁a ▁mor ale ▁boost er ▁for ▁the ▁company ▁employees , ▁on ▁ 2 3 , ▁ 2 4 , ▁and ▁ 2 5 ▁February ▁ 1 9 4 4 , ▁Ad ela ide ▁Hall ▁appeared ▁in ▁concert ▁at ▁the ▁factory ▁in ▁L ut on , ▁where ▁she ▁ent ert ained ▁the ▁employees ▁during ▁their ▁l unch ▁break . ▁In ▁all , ▁she ▁performed ▁in ▁front ▁of ▁more ▁than ▁ 1 0 , 0 0 0 ▁workers ; ▁this ▁was ▁the ▁first ▁time ▁that ▁V aux hall ▁had ▁contract ed ▁a ▁star ▁to ▁perform ▁at ▁their ▁factory ▁for ▁three ▁consecutive ▁days . ▁▁ 1 9 4 5 ▁to ▁ 1 9 7 0 ▁ ▁V aux hall ▁was ▁one ▁of ▁the ▁first ▁British ▁car ▁mak ers ▁to ▁switch ▁from