Severn-class lifeboat (Canada)

The Severn-class lifeboat of Canada is a redesign of the Royal National Lifeboat Institution's Severn-class lifeboat to meet the needs of the Canadian Coast Guard for off-shore search and rescue operations in severe conditions.

Programme

In 2015, the Canadian Coast Guard announced a request for proposals (RFP) to build up to ten new search and rescue lifeboats as part of Canada's National Shipbuilding Procurement Strategy. The vessels are intended to replace the Coast Guard's ten Arun-class lifeboats, which averaged 18 years of service at the time of the RFP.[1]

The new design is the work of Canadian nautical architectural firm Robert Allan Ltd. and is a modification of the Severn-class lifeboat, making the vessels more suited to the extreme weather conditions that can be found off Newfoundland and Nova Scotia.[2] Capable of 23.5 knots (43.5 km/h; 27.0 mph), the new vessels will be almost twice as fast as the earlier Arun-class vessels.[3] They are capable of operating in 12-metre (39 ft) waves, and in wind conditions at 12 on the Beaufort scale. The vessels' hulls will be aluminum, not FRC (fibre reinforced composite), as with the original Severn design.

Specifications
Length Overall19 metres (62 ft)[1]
Length DWL17.5 metres (57 ft)[1]
Beam, molded6.3 metres (21 ft)[1]
Depth, molded, at midship2.58 metres (8.5 ft)[1]
Hull draft, nominal1.67 metres (5.5 ft)[1]
Propulsion Power, nominal2 x 1,200 kilowatts (1,600 shp)[1]
Displacement Loaded, nominal62.5 tonnes (68.9 short tons)[1]
Displacement Lightship, nominal53.6 tonnes (59.1 short tons)[1]
speed23.5 knots (43.5 km/h)[3]
Sea state12-metre (39 ft) waves[2]
Wind conditionsBeaufort scale 12[2]
Complement
crew4+2[3]
stretcher cases2[3]
seated survivors12[3]

References
  1. "Canada issues RFP for SAR lifeboats". Marine Log. 2014-11-26. Archived from the original on 2015-07-22. Retrieved 2015-07-22.
  2. "New Robert Allan lifeboats". Maritime Journal. 2013-07-15. Archived from the original on 2013-10-29. Retrieved 2015-07-22.
  3. "Robert Allan Design New Canadian Coast Guard SAR Lifeboats". Marine Link. 2013-07-15. Archived from the original on 2015-07-22. The new Canadian design is larger with a greater range than the RNLI vessel and has been specifically designed to handle the worst weather encountered year around in the waters off Newfoundland and Nova Scotia. The new design is also for construction in aluminium rather than FRP as are the Severn Class.
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