HMS M3
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| Technical specifications | |
| Ship type : | Submarine ( submarine ) |
| Displacement : | 1,594 ts standard 1,946 ts submerged |
| Length: | 90.15 m |
| Width: | 6.20 m |
| Draft : | |
| Drive : | 2 × diesel engines with 2,400 PS (1.8 MW ) 2 × electric motors 1,600 PS (1.2 MW) 2 propellers |
| Fuel supply: | |
| Speed : | 15 kn (28 km / h) surfaced 8 kn (15 km / h) submerged |
| Range : | 4,500 NM (8,334 km) surfaced at 10 kn 80 NM (148 km) submerged at 2 kn |
| maximum diving depth: | 60 m |
| Crew : | 60 men |
| Armament (before conversion): | 4 × 18- inch (457-mm) torpedo tubes 4 reserve torpedoes 1 × 12-inch (305-mm) deck gun 1 × 3-inch (76.2-mm) flak |
HMS M3 was an M-class submarine ofthe British Royal Navy .
The M3 was one of a four-ship class of submarines that was ordered by the Royal Navy in February 1916 instead of four K-class vehicles (K18-K21). However, it was not, as you can occasionally read, conversions from the steam turbine- powered K-Class, but an independent design. In contrast to this, the two-hulled boats of the M-Class had the typical hybrid drive consisting of diesel and electric motors . In addition to an armament of four 18- inch - torpedo tubes leading M3 and her sister ships as a main armament in a turret in front of the conning tower housed, large-caliber battleship cannon in the caliber of 12 inches (305 mm). The idea for this concept resulted from the unreliability and insufficient range of the torpedoes used at the time (for the armament concept, see the sister ship M1 ).
The keel for M3 was on 4 December 1916 the shipyard of Armstrong Whitworth in Newcastle upon Tyne down from the deck ran the submarine on 19 October 1918 the commissioning took place only on 9 July 1920. Together with its sister ships was the submarine was mainly used for test and trial purposes in the following years. The M3 came into unusual use when it supplied the Victoria Dock and King George V Dock in London as a generator with electricity during a general strike between May 9 and 15, 1926 .
After the loss of M1 in 1925 through a collision and the stipulations of the Washington Naval Conference of 1922 , which limited the maximum caliber of submarine artillery to 8 inches (203 mm), the turrets of the two remaining M-Classes were removed. Submarines. M3 was converted into a mine- layer in Chatham in 1927/28 for test purposes . A housing was placed on the upper deck, from which 80 mines , later 100 mines, could be moved with a kind of conveyor belt through a door at the stern . As the concept proved its worth, it was used on the Porpoise class boats .
After the tests were completed, the M3 was taken out of service and sold for scrapping on February 16, 1932. The scrapping took place in April 1932 in Newport .