Inside the area surrounded by the shroud is a gatling plate rotated by {HEAD ~ a hydraulic motor} mounted just above {TAIL ~ the shroud and head plate} 
mounted above
Inside the area surrounded by the shroud is a gatling plate rotated by { HEAD ~ a hydraulic motor } mounted just above { TAIL ~ the shroud and head plate }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL