The oscillating plate has three sections: a curved plate section; {TAIL ~ an inclined plate section} and {HEAD ~ a flat plate section} 
The oscillating plate has three sections : a curved plate section ; { TAIL ~ an inclined plate section } and { HEAD ~ a flat plate section }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD