an elongate lever member for manipulating said {TAIL ~ control line} and having {HEAD ~ a pivoting extremity} and a free extremity, 
an elongate lever member for manipulating said { TAIL ~ control line } and having { HEAD ~ a pivoting extremity } and a free extremity ,
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH