a folding propfan blade journaled for rotation about {HEAD ~ an axis} extending at substantially a right angle to {TAIL ~ said blade} from a folded position to a run condition, 
a folding propfan blade journaled for rotation about { HEAD ~ an axis } extending at substantially a right angle to { TAIL ~ said blade } from a folded position to a run condition ,
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH