Construction: composite hull; carvel Teak planking on steel frames.
Rig: three masted auxillary barquentine, square rigged on the foremast, fore-and-aft on the after masts.
Length: 165 feet.
Beam: 31 feet.
Draught: minimum; 11.6 feet, maximum; 13.9 feet.
Displacement: 805 tons.
Propulsion: single 720 hp (normal draught) and 1,200 hp (forced) coal fired horizontal steam engine driving a two bladed propeller.
Cruising speed: 13 knots.
Armament: six 4-inch breech loading guns, two Hotchkiss 3 pounders and two Nordenfelt machine guns.