Porte-class gate vessel
The Porte-class gate vessels were a class of five boom defence vessels built in the early 1950s and operated by the Royal Canadian Navy (RCN) and Canadian Forces (CF) during the Cold War. The class derived its name from the gates of the French fortifications of Québec and Louisbourg and was designed by the RCN as a replacement for World War I-era Battle-class trawlers used to operate anti-submarine booms during World War II. The Porte class were used primarily as training vessels during the Cold War.
| Class overview | |
|---|---|
| Name | Porte class |
| Operators | Royal Canadian Navy ⁄ Canadian Maritime Command |
| Preceded by | Battle class |
| In commission | 5 December 1951 – 19 December 1996 |
| Completed | 5 |
| Scrapped | 5 |
| General characteristics | |
| Type | Boom defence vessel |
| Displacement | 429 tons |
| Length | 125 ft 6 in (38.3 m) |
| Beam | 26 ft 4 in (8.0 m) |
| Draught | 13 ft (4.0 m) |
| Propulsion | 1 diesel engine, 1 shaft 600 bhp (450 kW) |
| Speed | 11 kn (20 km/h) |
| Complement | originally 3 officers, 20 ratings; later expanded to 5 officers, 3 officers under training, 30 ratings |
| Sensors and processing systems |
|
| Armament | 1 × 40 mm Bofors single mount (later removed) |
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