In one aspect of the invention, {HEAD ~ a gas turbine engine} is defined by a plurality of components including {TAIL ~ a housing}, defining a central axis, a compressor section and a turbine section 
In one aspect of the invention , { HEAD ~ a gas turbine engine } is defined by a plurality of components including { TAIL ~ a housing } , defining a central axis , a compressor section and a turbine section
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH