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French Torpedo Avisos, 1882-1897: Photo Gallery

Torpilleurs avisos were one of two larger types of torpedo craft that were added to the fleet list in 1883, the other being the even larger Torpilleurs éclaireurs (torpedo scouts). These were changed to Avisos-torpilleurs and Croiseurs torpilleurs (q.v.) respectively in 1885 when they were moved out of the torpedo craft category. The Bombe and Lévrier classes became Contre-torpilleurs in 1909. The later classes became Contre-torpilleurs d'escadre in 1896, Contre-torpilleurs in 1901, and Torpilleurs d'escadre in 1914.

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Bombe class (on list 1883)

The design for this class was based on Normand's 27-meter torpedo boats (Nos. 54-55) with the main hull dimensions multiplied by a factor of 2.06. They had four engines like the single engine in No. 54 on two shafts instead of one. They were designed with closely paired torpedo tubes in the bow, but these were found unsuccessful on trials and were moved to sponsons on the sides aft before entering service. They were poor sea boats and, like the smaller torpedo boats, quickly lost speed in heavy seas.

Léger class (1889)

In 1888 the designer of the Bombe class was asked to produce an updated design with new Belleville boilers and machinery and improved hull lines. The funnel had to be 15 meters high to ensure adequate natural draught for the boilers. They had three torpedo tubes, one high up in the bow and two on mountings forward and aft of the main superstructure that could be pivoted to fire on either side. They were considered slow and weakly armed but were good sea boats.

D'Iberville (1892) and Cassini (1893) classes

In 1890 four avisos-torpilleurs of 420 tons and 18 knots like Lévrier were added to the building program, but this type was soon replaced by one of 925 tons and 21.5 knots, probably influenced by the new Italian Partenope. Three units were built, all by different builders and differing in various details. The first, D'Iberville (1892), had six torpedo tubes: 1 in the bow, 1, in the stern, and 4 on twin deck mounts, one to starboard forward of the superstructure and one to port aft of it. Cassini (1893) and Casabianca (1894) were designed with only two tubes located like the twin mountings in D'Iberville, but they never carried them because in 1895 the Navy decided to remove from ships all above-water torpedo tubes that could not be properly protected.

Dunois class (1896)

This class, which first appeared on the fleet list in 1896 as Contre-torpilleurs d'escadre, was designed around four large double-ended Normand boilers of a new type which were to produce a speed of 22.5 knots. The hull lines were derived from the seagoing torpedo boat Dragon. and the hull above the waterline was lowered at the ends over about an eighth of the ship's length. Although they fell short of their designed speed and although they steered badly, the ships were well regarded as excellent sea boats.