The other extremity of crank arm 6 is connected to {TAIL ~ an articulated joint} located in {HEAD ~ the rear section} of blade 2 
The other extremity of crank arm 6 is connected to { TAIL ~ an articulated joint } located in { HEAD ~ the rear section } of blade 2
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH