Articulated chassis 14 is supported for over the ground travel by a pair of {HEAD ~ front wheels} 22 mounted to {TAIL ~ front frame section} 16, and a pair of rear wheels 24 mounted to rear frame section 18 
mounted to
Articulated chassis 14 is supported for over the ground travel by a pair of { HEAD ~ front wheels } 22 mounted to { TAIL ~ front frame section } 16 , and a pair of rear wheels 24 mounted to rear frame section 18
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH