The panels are staggered in {TAIL ~ the longitudinal direction} so that {HEAD ~ an end section} of one panel extends beyond an end of the other panel and vice versa to form a front extension section and a rear extension section of the structural member 
The panels are staggered in { TAIL ~ the longitudinal direction } so that { HEAD ~ an end section } of one panel extends beyond an end of the other panel and vice versa to form a front extension section and a rear extension section of the structural member
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH