At {TAIL ~ this position} {HEAD ~ the platform structure} 12 is unfolded such that the three plates 44, 46 and 48 are substantially horizontal and in fully coplanar alignment to each other while the roll stop plate 14 is at the vertical raised position 
At { TAIL ~ this position } { HEAD ~ the platform structure } 12 is unfolded such that the three plates 44 , 46 and 48 are substantially horizontal and in fully coplanar alignment to each other while the roll stop plate 14 is at the vertical raised position
REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH