A pump is coupled to a cooling air line for conveying {HEAD ~ the precooled air} in {TAIL ~ a liquid or vapor state} to the components to be cooled wherein the cryogenically stored propellant acts upon the condenser 
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A pump is coupled to a cooling air line for conveying { HEAD ~ the precooled air } in { TAIL ~ a liquid or vapor state } to the components to be cooled wherein the cryogenically stored propellant acts upon the condenser
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH