an indicator tab rotatable between a first position in which said {HEAD ~ tab} is at all times out of engagement with said first and second cowl portions and a second position in which said tab is interposed between {TAIL ~ said first and second cowl portions} to prevent the closing of said cowl portions 
an indicator tab rotatable between a first position in which said { HEAD ~ tab } is at all times out of engagement with said first and second cowl portions and a second position in which said tab is interposed between { TAIL ~ said first and second cowl portions } to prevent the closing of said cowl portions
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH