Spain building several gunboats to serve at Cuba according to the magazine Mitteilungen aus dem Gebiete des Seewesens 1895 nr. 8

An item reported that a number of Spanish gunboats for service at Cuba was made of Siemens-Martin-steel, hulls divided in watertight compartments, a displacement of 40 tons and as dimensions 21 x 3,6 x 1,4 metres. Triple steam expansion engine and surfaced capacitors was with natural draft during 8 hours a speed of 10 knots and with forced draft during 2 hours 12 knots possible With a speed of 6 knots was the range 700 nautical miles. A distillation device delivered the needed freshwater for the boiler. The armament consisted of 104,2cm quick firing Nordenfelt gun and 1-3,7cm Maxim gun.