articulation means for attaching the flap to {HEAD ~ a remainder} of the shroud so that the flap is articulated at {TAIL ~ the end} 
articulation means for attaching the flap to { HEAD ~ a remainder } of the shroud so that the flap is articulated at { TAIL ~ the end }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL