{HEAD ~ longitudinally spaced apart metallic frame members} spaced from {TAIL ~ the skins} and defining a latitudinal section of an aircraft fuselage section 
spaced from
{ HEAD ~ longitudinally spaced apart metallic frame members } spaced from { TAIL ~ the skins } and defining a latitudinal section of an aircraft fuselage section
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH