▁motor ▁firing ▁after ▁the ▁miss ile ▁has ▁left ▁the ▁launch er , ▁which ▁allows ▁for ▁the ▁miss ile ▁to ▁be ▁fired ▁from ▁conf ined ▁spaces , ▁which ▁is ▁a ▁necessity ▁in ▁urban ▁war fare . ▁During ▁its ▁flight , ▁the ▁ro cket ▁is ▁man eu ver ed ▁by ▁unique ▁system ▁of ▁thrust ▁vector ing . ▁The ▁miss ile ▁is ▁prop elled ▁by ▁two ▁main ▁ro cket ▁motor ▁exhaust ▁van es ▁located ▁at ▁mid ▁body . ▁As ▁the ▁miss ile ▁rot ates ▁the ▁launch ▁units ▁send ▁signals ▁command ing ▁the ▁correction ▁by ▁one ▁of ▁the ▁two ▁van es ▁to ▁move ▁against ▁the ▁miss ile ▁mot ors ▁thrust . ▁For ▁example , ▁if ▁the ▁miss ile ▁has ▁to ▁move ▁to ▁the ▁left , ▁the ▁right ▁thrust ▁vector ▁van e ▁will ▁actu ate ▁at ▁the ▁correct ▁time . ▁It ▁is ▁protected ▁against ▁electronic ▁counter me asures ▁through : ▁" Use ▁of ▁C CD ▁matrix ▁sens ors , ▁fast ▁image ▁processing ▁computer ▁and ▁robust ▁miss ile ▁trac er ▁recognition ▁algorithm ." ▁ ▁Its ▁general ▁design ▁is ▁similar ▁to ▁the ▁French / Can ad ian ▁ER Y X ▁MB DA ▁anti - t ank ▁miss ile . ▁However ▁MB DA ▁has ▁never ▁supplied ▁Ser bia ▁or ▁the ▁former ▁Y ug oslav ia ▁with ▁technical ▁information ▁regarding ▁the ▁E ry x . ▁All ▁key ▁components ▁of ▁the ▁B um bar ▁system ▁are ▁ind igen ously ▁developed ▁by ▁V TI ▁- ▁Military ▁Techn ical ▁Institute ▁Bel grade ▁Ser bia . ▁ ▁General ▁information ▁ ▁Time ▁of ▁flight ▁to ▁target ▁at