The air movement profiler can be a fixed design or it can be a design which is capable of adjusting {HEAD ~ the shape} and {TAIL ~ size} of the deflecting surface 
The air movement profiler can be a fixed design or it can be a design which is capable of adjusting { HEAD ~ the shape } and { TAIL ~ size } of the deflecting surface
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH