Her three water cannons can fire water, supplemented by fire suppressant foam from her two 250 gallon tanks.
Her water cannons are capable of pumping a 19,000 litres per minute at 150 psi.
Although not operated as such, she can also serve as a tugboat, and has a bollard pull of 7.5 tons.
The two ships displaced140 tonnes (138 long tons) and were 23.1 metres (75ft 9in) long, with a beam of 6.4 metres (21ft) and a draught of 2.6 metres (8ft 6in). The ships were powered by two 365 horsepower (272kW) azimuthing Z-drives and one hydraulic tunnel bow thruster. This gave the vessels a maximum speed of 11 knots (20km/h; 13mph). The ships had a crew of five firefighters.