41 in. x 83 in. safety Pennant is a green triangular pennant with a white circle, a green cross and line, snap & ring . It is awarded to ships that win the annual surface force commanders ft. competitions for shipboard safety. The pennant is flown from a yardarm of the ship when not under way. Also known as the Green (S) Pennant because winners also paint a green letter (S) on the bridge.