ⓘ Coastal Motor Boat
During the First World War, following a suggestion from three junior officers of the Harwich destroyer force that small motor boats carrying a torpedo might be capable of travelling over the protective minefields and attacking ships of the Imperial German Navy at anchor in their bases, the Admiralty gave tentative approval to the idea and, in the summer of 1915, produced a Staff Requirement requesting designs for a Coastal Motor Boat for service in the North Sea.
These boats had to have a high velocity, making use of light and powerful petrol engines available. The speed of the vessel when fully loaded shall not be less than 30 knots of speed 56 km / h and sufficient fuel should be carried out to give a considerable radius of action.
They were armed in various ways, torpedoes, depth charges or mines. Secondary armament was provided by light machine guns, such as "Lewis". The weight of fully loaded boat, complete with 18 inch 450 mm torpedoes, not to exceed the weight of 30 feet, a 9.1 m powerboat carried in davits of a light cruiser, i.e. 4.5 tons.
The POC was developed thornycroft, which had experience in small fast boats. The engines were not proper Maritime internal combustion engines, since they were in short supply, but adapted aircraft engines from firms such as sunbeam and Napier.
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- is now at Portsmouth. Motor launch Harbour defence motor launch Fairmile C motor gunboat Steam gun boat Motor torpedo boat Coastal Forces of the Royal Navy
- The Fairmile D motor torpedo boat was a type of British motor torpedo boat MTB designed by Bill Holt and conceived by Fairmile Marine for the Royal
- craft coastal motor boats during World War I 1914 - 1918 They operated as often in action against the enemy coast as in defence of British coastal areas
- at rest Fairmile A motor launch Fairmile B motor launch Fairmile D motor torpedo boat Fairmile H landing craft Steam Gun Boat Coastal Forces of the Royal
- as motor launches. Although small by naval standards, it was larger than the preceding steam or diesel - engined harbour launches of 56ft and coastal motor
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- a Staff Requirement requesting designs for a Coastal Motor Boat for service in the North Sea. These boats were expected to have a high speed, making use
- used as foreign R - boats R - boote Ausland and were designated with RA - RH - and RD - prefixes. A further 8 coastal motor fishing boats were designated as
- designated with names such as: Motor Launch, High Speed Launch, air - sea rescue, Motor Gun Boat and Motor Torpedo Boat It did not include landing craft