Bird Class

Type: Patrol steamer.
Displacement: 96 Imperial tons.
Length: 86 ft 7 in (26.3 m).
Beam: 18 ft 5 in (5.4 m).
Draught: 10 ft 8 in (3.35 m).
Propulsion: Triple expansion reciprocating steam engine. 1 Shaft.
Speed: 13 kn (24 km/h).
Complement: 9 Officers and men.
Armament: 1 x 37 mm (1.5 in) gun.

The Bird class were built at the Tesereau Ship Yard at Moratala from 2178 to 2180. Nine vessels were built,with five being bought into service with the Imperial Navy. These are Gannet. Petrel. Guillemot. Cormorant. Gull. The class is popular with inshore units due to its shallow draught and ease of handling.

Tree Class

Type: Patrol steamer.
Displacement: 287 Imperial tons.
Length: 129 ft 7 in (40 m).
Beam: 23 ft 5 in (7 m).
Draught: 14 ft (4.5 m).
Propulsion: Triple expansion reciprocating steam engine. 1 Shaft.
Speed: 10 knots (12 mph; 19 km/h).
Complement: 12 Officers and men.
Armament: 1 × QF 12-pounder (76-mm) gun.

Numerous in the northern seas, the Tree class were designed for, and largely operated by, the Northern Fleet Auxiliary. Twenty were originally built from 2167 to 2170, with a further four added in 2172. Six of these have since been sold out of the service, two have been scrapped and one was lost with all hands. The remaining vessels in service are as follows: Juniper. Willow. Larch. Ash. Oak. Birch. Olive. Elm. Apple. Cedar. Rose. Bark. Beech. Poplar. Chestnut.

Wariangle

Class: Inferior cruiser.
Displacement: 805 Imperial tons.
Length: 165 ft (50 m).
Beam: 31 ft (9.4 m).
Draught: 13.9 ft (4.2 m).
Propulsion: Triple expansion steam engine. 2 x Boilers. Single screw.
Sail plan: Barquentine-rigged
Speed: 13 kn (24 km/h)
Complement: 76 Officers and men.
Armament: 6 x 4-inch (101.6 mm) 25-pdr guns. 2 x 3 pdr guns. 4 x Machine guns.
Armour: Hull: 12 in Iron and wood composite.

The oldest serving fighting vessel in the Northern Fleet, Wariangle was built at the Cannard and Burnsharp shipyard in Aquilea and launched in 2152. Due to a series of mishaps in the 2150's she was completely overhauled and as a consequence, survived her sister ships which were all scrapped after the Navy Reformations of 2164. She was eventually deemed obsolete in 2177 but due to her excellent condition was transferred to the Auxiliary fleet as a convoy escort. In 2186 Vice Admiral Jaak beDoel requested his squadron be strengthened and Wariangle returned to the Northern Fleet as a temporary consort to Cyclone. In 2188 she is still serving in this capacity, but is expected to be replaced by the end of the year. Her commanding officer is Captain Denholm Brightwater.