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