The Grom was a British-built Polish destroyer of 2144 tons displacement launched in 1936 and lost in 1940 during the Second World War. The Grom was powered by four 3-drum type boilers providing a top speed of 40 knots and carried a complement of 180. She was armed with seven 4.7 inch guns; four 47 mm anti-aircraft guns; four machine-guns; two depth... Found on http://www.probertencyclopaedia.com/browse/RG.HTM