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fighting ships of the world

ROYAL NORWEGIAN NAVY (NORWAY)

MINE WARFARE SHIPS

Olaf Tryggvason 1940

Displacement standard, t	1569
Displacement full, t	1860
Length, m	93.0 pp 97.3 oa
Breadth, m	11.5
Draught, m	3.60
No of shafts	2
Machinery	2 sets De Laval geared steam turbines, 3 boilers / 2 8-cyl diesel-generators, 2 electric motors
Power, h. p.	6000 / 1400
Max speed, kts	21 / 14
Fuel, t	oil 130 + diesel oil 70
Endurance, nm(kts)	3000(14)
Armament	4 x 1 - 120/44 Bofors, 1 x 1 - 76/51 Bofors, 2 x 1 - 40/56 Bofors, 2 x 1 - 12.7/90, may be 2 x 2 - 450 TT, 280 mines
Complement	191

Project history: One of the most perfect minelayers in the world on the eve of the Second World War. She had rather original machinery, including two geared steam turbines (6000hp) and two diesel-generators, making a current for two electric motors (1400hp). Under diesels ship made 14kts, and under turbines given 21kts. Ship achieved 23kts at trials. Ship had covered mine deck, minelaying happened through three stern gangway ports. In addition to powerful artillery including 4 120mm Bofors guns design provided a TT bank (there are divergences concerning number and calibre of TTs, but the most probable variant is one twin 450mm TT on centerline or 2 twin 450mm TT aside was represented), however reliable information that the ship finally received torpedoes, are not available. At least, when Olaf Tryggvason was commissioned by German Navy, she had not TTs.

Modernizations:  None.

Naval service: Olaf Tryggvason was captured by German troops 9.4.1940 at Horten and commissioned by German Navy as Albatross. 3.5.1945 she was heavy damaged at Kiel by American aircraft and sunk.

© Ivan Gogin, 2010-14