Ville-class tugs

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CFAV Merrickville in Halifax -b.jpg
Ville-class Tug CFAV Merrickville
Class overview
Builders: Georgetown Shipyard, Georgetown, Prince Edward Island
Vito Steel, Delta, British Columbia[1]
Operators:  Royal Canadian Navy
Built: 1974–1975
In commission: 1975–present
Completed: 5
Active: 5
General characteristics
Type: Ville-class Tugboat
Displacement: 45 long tons (46 t)
Length: 19.5 m (64 ft 0 in)
Beam: 4.72 m (15 ft 6 in)
Draught: 2.74 m (9 ft 0 in)
Installed power:
  • East coast Villes - 1 x Caterpillar 3406 diesel at 365 hp (272 kW)
  • West coast Villes - 1 x Caterpillar D343 rated at 365 hp (272 kW)
Propulsion: 1 x steerable kort nozzle
Notes: Bollard pull: 7.5 tons

The Ville-class harbour tugboats are a class of tugboats employed by the Royal Canadian Navy.[2][3]

Canada operated a fleet of 17 ton tugs, built during the Second World War which were also called the Ville-class.[3] The current vessels are named after those vessels.[4] There is confusion that the current Ville-class design was based on the British Pup-class tugs. The original 17 ton version was based on that design, however the new Villes are an independent design.[3]

Design[edit]

The Ville-class was designed as harbour tugs. They have a low-slung shape that is ideal for tight maneuvering and nudging exercises on larger ships. Their kort-nozzle allows for a greater bollard pull however it loses its pull at anything over 10 knots and loses speed in turns.[3]

Ships[edit]

The five vessels are:

Listerville, Merrickville and Maryville are based at CFB Halifax, on Canada's East Coast. Lawrenceville and Parksville are based at CFB Esquimalt.

Other auxiliary ships[edit]

The Royal Canadian Navy operates six other, larger tugboats, the 140 ton CFAV Tillicum, and five 250 ton Glen class tugs, and two 140 ton Fire class fireboats.[3][5][6] The larger tugs are also split between both coasts.

References[edit]

  1. ^ "Naval Tugs Built Since WWII". shipbuildinghistory.com. Retrieved 27 September 2013. 
  2. ^ "Esquimalt Harbour". Canadian Department of National Defence. July 16, 2007. Retrieved 2008-02-13. "Two VILLE (YTL) Class tugs - LAWRENCEVILLE and PARKSVILLE - 45 gross tons, fitted with steerable Kort Nozzle. Maximum bollard pull 7.5 tons." 
  3. ^ a b c d e "Canadian Forces Small Ships — the Ville class YTL Harbour Tug". Canadian American Strategic Review. Archived from the original on 2008-03-02. Retrieved 2008-02-13. 
  4. ^ "Merrickville / Ann Marie". Russel Brothers Limited. Retrieved 2008-02-13. 
  5. ^ "Canadian Forces Small Ships — the Glen class YTB Tractor Tug". Canadian American Strategic Review. Archived from the original on 2008-03-02. Retrieved 2008-02-13. 
  6. ^ "Canadian Forces Small Ships — the Fire class YTR Rescue Boats". Canadian American Strategic Review. Archived from the original on 2008-03-02. Retrieved 2008-02-13.