British Power Boat Company Type Two 63 ft HSL

British Power Boat Company Type Two 63 ft HSL

Modernwarshiptype
name= Type Two 63 ft HSL


caption=
ensign_

type=High Speed Launch
era=World War Two
nation=UK
operators=RAF
builder=British Power Boats
fate=
displacement= 21.5 tons
length= 63 ft
beam=17½ ft
draught=3¾ ft
propulsion= 3 x Napier Sea Lion (500 h.p; 373 kW each)
range= 500 miles (800 km)
speed= 36 kt (67 km/h)
crew= 9 (including Captain and a Medical Orderly)
armament=2 x 0.303 MG
Known as the "Whaleback" from the distinctive curve to its deck, the Type 2 HSL (High Speed Launch) was used to rescue Allied aircrew from the sea after they were shot down during the Second World War.

History

In the Second World War, the retrieval of pilots and aircrew shot down over the sea around the British Isles was the responsibility of the Royal Air Force Air Sea Rescue Service, (motto: "The Sea Shall Not Have Them") operating launches and aircraft in cooperation with the Royal Navy.

The Type Two was designed in 1937 by Hubert Scott-Paine, founder of the British Power Boat Company at Hythe. Scott-Paine had worked previously for the Supermarine Aviation Company, builders of the Supermarine Spitfire and, more importantly, several flying boat types.

A lowset cabin contained the wheel-house, chart room and a sickbay.For defence against enemy aircraft, on top of the cabin were two aircraft-style turrets made by Armstrong-Whitworth each with a single .303 in Vickers machine gun.

Usage

The Type Two was supplied to RAF Marine Craft Units from the middle of 1940. Around seventy "Whalebacks" were built for the RAF between 1940 and 1942. They were used throughout the war.

Variants

Following their performance during the Dieppe raid in August 1942, the Type Two was modified. Extra armament was fitted - paired .303 in machine guns mounted either side of the wheel-house and a single 20 mm Oerlikon on the (strengthened) rear deck. Protection was improved by adding anti-shrapnel padding around the forward cabin area.

ee also

*Motor Launch

External links

Whaleback at British Military Powerboat Trust [http://www.bmpt.org.uk/boat%20histories/HSL-142/]


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