said synchro drive of said third element being disposed within said third hydromotor of said third element for {HEAD ~ rotation} by {TAIL ~ the rotary output} of said third hydromotor 
by
said synchro drive of said third element being disposed within said third hydromotor of said third element for { HEAD ~ rotation } by { TAIL ~ the rotary output } of said third hydromotor
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH