The embodiment in FIG 1 is symmetrical with {TAIL ~ respect} to a central plane {HEAD ~ ME} which is defined by center lines 3 and 4 
The embodiment in FIG 1 is symmetrical with { TAIL ~ respect } to a central plane { HEAD ~ ME } which is defined by center lines 3 and 4
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH