er ▁mounted ▁directly ▁at op ▁the ▁main ▁housing ▁of ▁each ▁of ▁the ▁six ▁susp ension ▁units ▁( three ▁per ▁side ), ▁designed ▁as ▁self - cont ained ▁and ▁readily ▁replaced ▁mod ular ▁units ▁bol ted ▁to ▁the ▁h ull ▁sides . ▁The ▁tur ret ▁was ▁power - tra vers ed ▁by ▁an ▁electro - h yd ra ul ic ▁system ▁in ▁the ▁form ▁of ▁an ▁electric ▁motor ▁providing ▁the ▁pressure ▁for ▁the ▁hyd ra ul ic ▁motor . ▁This ▁fully ▁rot ated ▁the ▁tur ret ▁in ▁ 1 5 ▁seconds . ▁Control ▁was ▁from ▁a ▁sp ade ▁g rip ▁on ▁the ▁gun . ▁The ▁same ▁motor ▁provided ▁pressure ▁for ▁the ▁gun ▁stabil izing ▁system . ▁ ▁The ▁ 7 5   mm ▁gun ▁was ▁operated ▁by ▁a ▁gun ner ▁and ▁a ▁loader ; ▁sight ing ▁the ▁gun ▁used ▁an ▁M 1 ▁per is cope ▁– ▁with ▁an ▁integral ▁teles cope ▁– ▁on ▁the ▁top ▁of ▁the ▁spons on . ▁The ▁per is cope ▁rot ated ▁with ▁the ▁gun . ▁The ▁sight ▁was ▁marked ▁from ▁zero ▁to ▁, ▁with ▁vertical ▁mark ings ▁to ▁aid ▁def lection ▁shooting ▁at ▁a ▁moving ▁target . ▁The ▁gun ner ▁laid ▁the ▁gun ▁on ▁target ▁through ▁ge ared ▁hand w he els ▁for ▁traverse ▁and ▁elev ation . ▁The ▁shorter ▁bar re led ▁ 7 5   mm ▁M 2 ▁can non ▁sometimes ▁featured ▁a ▁counter weight ▁at ▁the ▁end ▁of ▁the ▁bar rel ▁to ▁balance ▁the ▁gun ▁for ▁operation ▁with ▁the ▁gy rost abil izer ▁until ▁the ▁longer