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FIGHTING SHIPS OF THE WORLD
UNITED KINGDOM
COASTAL FORCES
TENACITY patrol craft (1973)


Photo



Tenacity 1973

Ships


Name No Yard No Builder Laid down Launched Comp Fate
Tenacity P276   Vosper Thornycroft, Portsmouth   18.2.1969 17.2.1973 sold 1985


100 - 1000 t displacement/ BRT tonnage vessels


Name No Yard No Builder Laid down Launched Comp Fate Tenacity P276   Vosper Thornycroft, Portsmouth   18.2.1969 17.2.1973 sold 1985

Technical data


Displacement standard, t

165

Displacement full, t

220

Length, m

44.0

Breadth, m

8.10

Draught, m

2.40

No of shafts

3

Machinery

CODOG: 3 Rolls-Royce Proteus gas turbines / 2 Paxman Ventura cruising diesels

Power, h. p.

12750 / 1200

Max speed, kts

39

Fuel, t

diesel oil

Endurance, nm(kts)2500(15)
Armament

2 x 1 - 7.6/90

Electronic equipment

nav. radar

Complement

32



Standard scale images


<i>Tenacity </i>1975
Tenacity 1975


Graphics


<i>Tenacity </i>1973
Tenacity 1973


Project history

An experimental private venture fast patrol boat built at Vosper Thornycroft's Camber yard in Portsmouth 1967-69. She was not bought by the RN until January 1972, but was used for demonstrations and was twice chartered by the RN in 1971. Although designed for a heavy armament this was never fitted (the twin 35mm mounting and quad SSMs credited to her in Jane's being dummies), and when taken in to the RN she was given only two light machine-guns for fishery protection duties. The main alteration was the fitting of two davits for handling inflatable dinghies on the forecastle, but in 1978 she received a 40mm Bofors gun on the forecastle.

Modernizations

1978: + 1 x 1 - 40/60 Mk 9

Naval service

She was reported to be for sale, but did not arrive at Southampton from Rosyth until 1985.