When the pressure in {HEAD ~ the annulus} exceeds the pressure of the gas in the on board storage tank, a signal will open the valve to {TAIL ~ the on board storage tanks} and the gas inside the bladder will be forced out to the on board storage tanks in one or two vehicles, simultaneously, or individually, as the choice may be 
When the pressure in { HEAD ~ the annulus } exceeds the pressure of the gas in the on board storage tank , a signal will open the valve to { TAIL ~ the on board storage tanks } and the gas inside the bladder will be forced out to the on board storage tanks in one or two vehicles , simultaneously , or individually , as the choice may be
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH