Guadiana-class destroyer

Douro
Class overview
Name	Guadiana-class destroyer
Builders	Lisbon Naval Arsenal
Operators	Portuguese Navy
Preceded by	Tejo
Succeeded by	Douro class
In commission	1913–1942
Completed	4
Lost	1
Retired	3
General characteristics
Type	Destroyer
Displacement	Standard: 515 long tons (523 t) Full load: 660 long tons (670 t)
Length	73.2 m (240 ft 2 in)
Beam	7.2 m (23 ft 7 in)
Draft	2.3 m (7 ft 7 in)
Installed power	3 × Yarrow boilers 11,000 shp (8,200 kW)
Propulsion	2 × steam turbines 2 × screw propellers
Speed	27 knots (50 km/h; 31 mph)
Range	1,600 nautical miles (3,000 km; 1,800 mi) at 15 knots (28 km/h; 17 mph)
Complement	80
Armament	1 × 102 mm (4 in) gun 2 × 76 mm (3 in) guns 4 × 457 mm (18 in) torpedo tubes

The Guadiana class was a class of four destroyers employed by the Portuguese Navy (Marinha Portuguesa) between 1913 and 1942. This class is often alternatively referred as the Douro class.

Note, that, in Portugal, there is a later Douro class of destroyers used by the Portuguese Navy between 1933 and 1967, usually referred to as the Vouga class.