▁with . ▁The ▁static ▁version ▁of ▁the ▁Q F ▁ 3 . 7 - inch , ▁designed ▁for ▁use ▁on ▁a ▁permanent , ▁concrete ▁platform , ▁had ▁a ▁faster ▁traverse . ▁The ▁cost ▁and ▁delay ▁of ▁installing ▁new ▁permanent ▁platforms ▁for ▁the ▁guns ▁was ▁avoided ▁by ▁the ▁use ▁of ▁temporary ▁platforms ▁de vised ▁by ▁the ▁RE ME ▁and ▁made ▁from ▁railway ▁sleep ers ▁and ▁rails . ▁This ▁was ▁found ▁to ▁be ▁ade qu ate ▁for ▁the ▁static ▁guns , ▁making ▁them ▁consider ably ▁easier ▁to ▁re - deploy ▁as ▁the ▁V - 1 ▁threat ▁changed . ▁They ▁were ▁known ▁as ▁' P ile ▁Platform s ' ▁after ▁General ▁P ile . ▁After ▁two ▁weeks ' ▁experience ▁of ▁the ▁V 1 ▁threat ▁AA ▁Command ▁carried ▁out ▁a ▁major ▁re organisation , ▁stri pping ▁guns ▁from ▁the ▁London ▁I A Z ▁and ▁other ▁parts ▁of ▁the ▁UK ▁and ▁re position ing ▁them ▁along ▁the ▁south ▁coast . ▁In ▁total ▁ 6 0 0 ▁guns , ▁ 2 3 , 0 0 0 ▁crew ▁and ▁support ▁personnel ▁and ▁over ▁ 3 0 , 0 0 0 ▁tons ▁of ▁am mun ition ▁were ▁moved ▁to ▁the ▁south ▁coast ▁in ▁three ▁days . ▁Here ▁they ▁target ed ▁V - 1 s ▁coming ▁in ▁over ▁the ▁English ▁Channel , ▁where ▁a ▁down ed ▁V - 1 ▁would ▁cause ▁no ▁damage . ▁ ▁As ▁the ▁launch ing ▁sites ▁were ▁over run ▁by ▁ 2 1 st ▁Army ▁Group , ▁the ▁Luft wa ffe ▁switched ▁to ▁air - launch ing ▁V