The turbine section 16 is {HEAD ~ a stage} of {TAIL ~ disk mounted turbine blades} 20, only one of which is shown, each of which blades 20 has a hollow aerofoil 22 
of
The turbine section 16 is { HEAD ~ a stage } of { TAIL ~ disk mounted turbine blades } 20 , only one of which is shown , each of which blades 20 has a hollow aerofoil 22
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL 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