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