An apparatus for cooling components of {HEAD ~ an airplane engine} at least partially operated by a cryogenically stored propellant via cooling air includes {TAIL ~ an air supply line} for supplying the cooling air from an outside environment 
An apparatus for cooling components of { HEAD ~ an airplane engine } at least partially operated by a cryogenically stored propellant via cooling air includes { TAIL ~ an air supply line } for supplying the cooling air from an outside environment
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH