The universal mounting consists of a first housing having a base attached to {TAIL ~ the boom} and {HEAD ~ a power driven worm} in drive relation with a worm gear in the housing 
The universal mounting consists of a first housing having a base attached to { TAIL ~ the boom } and { HEAD ~ a power driven worm } in drive relation with a worm gear in the housing
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH