The Chunphorn was an Italian-built Thai torpedo boat of 318 tons displacement launched in 1937. The Chunphorn was powered by Yarrow boilers providing a top speed of 31 knots and a range of 2720 km at 15 knots. She carried a complement of 70 and was armed with three 3 inch anti-aircraft guns; two 20 mm anti-aircraft guns and six 18 inch torpedo tube...