The blades in {TAIL ~ the portion} 24 thus rotate together with {HEAD ~ the beaters} 17 
The blades in { TAIL ~ the portion } 24 thus rotate together with { HEAD ~ the beaters } 17
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH