The Thornycroft built Swedish torpedo boat Hugin (length 116 feet, beam 12.83 feet, draught aft6.67 feet, forward 2.05 feet, displacement 54 tons; estimated speed 19 knots) was armed with an unspecified number of 12 inch by 19-foot Whitehead torpedoes to be fired from two bow torpedo tubes, and one four-barrel Palmcrantz machine gun.