▁ ▁the ▁forward ▁heat ▁shield ▁was ▁j ett ison ed ▁using ▁four ▁press ur ized - gas ▁compression ▁spr ings . ▁The ▁dro gue ▁par ach utes ▁were ▁then ▁deployed , ▁slow ing ▁the ▁space craft ▁to ▁. ▁At ▁ ▁the ▁dro g ues ▁were ▁j ett ison ed ▁and ▁the ▁pilot ▁par ach utes , ▁which ▁pulled ▁out ▁the ▁main s , ▁were ▁deployed . ▁These ▁slow ed ▁the ▁C M ▁to ▁ ▁for ▁spl ash down . ▁The ▁portion ▁of ▁the ▁caps ule ▁that ▁first ▁contact ed ▁the ▁water ▁surface ▁contained ▁four ▁cr ush able ▁rib s ▁to ▁further ▁mit ig ate ▁the ▁force ▁of ▁impact . ▁The ▁command ▁module ▁could ▁safely ▁par ach ute ▁to ▁an ▁ocean ▁landing ▁with ▁only ▁two ▁par ach utes ▁deployed ▁( as ▁occurred ▁on ▁Apol lo ▁ 1 5 ), ▁the ▁third ▁par ach ute ▁being ▁a ▁safety ▁pre ca ution . ▁ ▁Re action ▁control ▁system ▁The ▁command ▁module ▁attitude ▁control ▁system ▁consisted ▁of ▁twelve ▁ ▁attitude ▁control ▁j ets ; ▁ten ▁were ▁located ▁in ▁the ▁a ft ▁compart ment , ▁and ▁two ▁pitch ▁mot ors ▁in ▁the ▁forward ▁compart ment . ▁Four ▁t anks ▁stored ▁ ▁of ▁mon om eth yl h yd raz ine ▁fuel ▁and ▁nit ro gen ▁t etro x ide ▁ox id izer . ▁They ▁were ▁press ur ized ▁by ▁ ▁of ▁hel ium ▁stored ▁at ▁ ▁in ▁two ▁t anks . ▁ ▁H atch es ▁The ▁forward ▁dock ing ▁h atch ▁was ▁mounted ▁at ▁the ▁top ▁of ▁the