History
Canada
Name	Loon
Namesake	Loon
Builder	Taylor Boat Works, Toronto
Launched	4 October 1954
Commissioned	30 November 1955
Decommissioned	30 August 1965
Identification	PCS 780
Badge	Or, a loon proper, upon a base barry wavy of six azure and or[1]
General characteristics
Class and type	Bird-class patrol vessel
Displacement	66 long tons (67 t)
Length	92 ft (28 m) o/a
Beam	17 ft (5.2 m)
Draught	5.3 ft (1.6 m)
Propulsion	2 shaft diesel engines, 1200 bhp
Speed	14 kn (26 km/h; 16 mph)
Complement	2 officers, 19 ratings
Armament	1 × 20 mm gun Hedgehog anti-submarine mortar

HMCS Loon was a Bird-class patrol vessel of the Royal Canadian Navy. The ship served from 1955 to 1965 before being discarded. The class was designed for harbour patrol.

Bird-class patrol vessels were designed for harbour patrol, training and anti-submarine warfare. Constructed of wood and aluminum, Loon displaced 66 long tons (67 t). She was 92 ft (28.0 m) long overall, with a beam of 17 ft (5.2 m) and a draught of 5.3 ft (1.6 m).^[2]

The Bird class were powered by diesel engines creating 1,200 brake horsepower (890 kW) connected to two shafts. This gave the ships a maximum speed of 14 knots (26 km/h; 16 mph).^[2] Loon was armed with one 20 mm gun and a Hedgehog anti-submarine mortar.^[3]

Loon's keel was laid down by Taylor Boat Works at their yard in Toronto and the vessel was launched on 4 October 1954. The ship was commissioned into the Royal Canadian Navy on 30 November 1955 with the pennant number PCS 780.^[3] After commissioning, Loon was used for training purposes. In 1961, Loon was assigned to Atlantic Command as a harbour patrol craft.^[4] She was used for air/sea rescue along the west coast of Canada. She was paid off on 30 August 1965.^[3]

• Arbuckle, J. Graeme (1987). Badges of the Canadian Navy. Halifax, Nova Scotia: Nimbus Publishing. ISBN 0-920852-49-1.
• Gardiner, Robert; Chumbley, Stephen; Budzbon, Przemysław, eds. (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.
• Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.

• Bird Class – Radio Fit – Radio Research Paper