Built at John I. Thornycroft, Chiswick, England in 1888, displacement 180 tons and as dimensions 70.2 x 8 x 4 feet, 1 screw, horsepower 180 ihp, speed during trials 15.8 knots, coal bunker capacity 1 ton, crew numbered 6 men and the armament consisted of 2 torpedo tubes and 1 machinegun.