{HEAD ~ Bar screen} 3 can also be located in device 2 so that the part formed by bar screen 3 is horizontal so that {TAIL ~ the pitch angle} is replaced by an S upslope at the bow 
{ HEAD ~ Bar screen } 3 can also be located in device 2 so that the part formed by bar screen 3 is horizontal so that { TAIL ~ the pitch angle } is replaced by an S upslope at the bow
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH