Help, I need to damage the propeller of a helicopter when crashing into an object, the body of the helicopter does not interest me, but the problem is that eh downloaded dosarchivos forums and none serves me, one is with rbdpincosntrain, and the other bon rbdkeyactive1 but when I turn the latter the helices are flying by the effect of rotation, deputy simple scene of a helicopter passing an item but the helices fall oh oh stay still, urgent help!sorry for bat English
helicopter.hip