Hai class submarine

From Shipbucket Wiki
Revision as of 13:54, 30 December 2021 by Gollevainen 2.0 (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

Image:Hai

Hai-class Submarine
Class overview
Name Hai-class Submarine
Builders Telakka N:o 123 Ortonikkilä, Uusilinna
Planned 3
Built 3
Scrapped 3
General Characteristics
Type Submarine
Displacement
  • 113 long tons (115 t) surfaced
  • 125 long tons (127 t) submerged
Length 19.5 metres (64 ft)
Beam 3.3 metres (11 ft)
Draught 2.9 metres (9.5 ft)
Propulsion
  • 1 × gasoline engine(300 bhp (220 kW))
  • 1 × electric motor (120 hp (89 kW))
Speed
  • 9 knots (17 km/h; 10 mph) (surfaced)
  • 4.5 knots (8.3 km/h; 5.2 mph) (submerged)
  • Test depth 50 m
    Complement 22
    Armament
    • 2 external 15-inch (381 mm) torpedoes on drop collars
    • 1 × machinegun


    Development

    First operational combat-capable submarines in TTPL service. Designed by Engineer Iivo Puponen. Single hull design with saddle tanks. Somewhat questionable combat value but the class performance was satisfactory enough to convince TTPL to proceed developing the underwater warfare branch.

    Ships in class

    Name Builder Laid down Launch Date Entered Service Fate
    Hai Telakka N:o 123 Ortonikkilä, Uusilinna August 1901 May 1902 October 1904 Scrapped in 1918
    Hauki Telakka N:o 123 Ortonikkilä, Uusilinna June 1903 July 1904 November 1905 Sunk in 1913
    Lohi Telakka N:o 123 Ortonikkilä, Uusilinna June 1903 July 1904 December 1905 Scrapped in 1918

    Service history

    First unit was build as a prototype, the following pair was laid down only after the first succesfull trials of Hai. Hauki sunk while under transit to Seivästö naval base in 1913. Due their apparent obsolesce, the remaining two were kept as harbour defensive duties in Pohjoismeri during the Great War. Both were scrapped in 1918.

    See Also

    Ships of Workers' and Peasants' Red Fleet 1883-1922