The limited basin of the Adriatic Sea favoured the operation of the
light ships and various types of "microorganisms". The Italian naval
command at the end of 1914 already drew attention to the combat
capabilities of motor torpedo boats. The design of such a unit was
presented in November, 1914, by the Italian company Maccia Marchini. The
cutter had a displacement of 7-8 tons, a length of 15 meters and was
propelled by two engines, 200 HP each. It was supposed to reach a speed
of 30 knots. The armament was two torpedoes dropped from both sides.
However, the Italian Navy decided not to work with a small and not very
well-known company.
The fate of the project proposed in February, 1915, by the Venetian
company SVAN (Società Veneziana Automobili Nautiche - Venetian Society
of Self-Propelled Sea Boats) was different. Torpedo boat designed by
engineer Atillia Bisio was somewhat reminiscent of the design of the
Maccia Marchini company. It had a similar displacement (7.8 tons) and a
length of 15 meters. The drive consisted of four engines with a power of
100 HP each, working on two propeller shafts. The armament was limited
to two 450 mm torpedoes and one 37 mm gun.