The Westdiep is a Belgian Wielingen Class frigate of 1940 tons displacement launched in 1976. The Westdiep is powered by a Rolls-Royce Olympus TM3B gas turbine producing 28000 bhp; two Cockerill CO-240 V122400 diesels producing 6000 bhp and has twin cp propellers providing a top speed of 29 knots; 15 knots on one diesel and 20 knots on two diesel e...