Hydra-class minelayers

This class of minelayers was the first of a whole serie of classes of defensive minelayers, built for both the homewaters as the Dutch East Indies. The ships, Hydra and Medusa, had a minedeck below the maindeck to ensure that the mines wouldn't be effected by weather conditions. The speed and range were sufficient for short distances, and an reciprocating system made her inexpensive and very easy to maintain.

Hydra at sea, date and place unknown.

Construction details
Name Hydra Medusa
Dockyard Rijkswerf Amsterdam Rijkswerf Amsterdam
Laid down October 1 1910 December 12 1910
Launched July 7 1911 June 23 1911
Commissioned January 25 1912 December 20 1911
Pennant no - HW-1
A-890
Status Damaged by German anti-tank rounds and beached by crew May 15 1940 in Zeeland. Later salvaged and scrapped in Hendrik Ido Ambacht, Holland. Reached the Downs on May 15 1940 after capitulation of Holland. Towed to Holyhead on July 31 to serve as an accommodationship. Left UK on January 15 1946 and returned to the Netherlands. Served as accommodation-ship and minesweeper-support-ship in the years afterwards. Stricken June 5 1964 and sold for scrap on September 25 of the same year.

Specifications
Displacement 593 t / 593 t / 657 t
Crew 59 59
Dimensions 49,70 x 9 x 2,75 m 49,68 x 9,31 x 2,68 m
Armament 3 x 75 mm (3 x 1)
2 x .50 MG
2 x 75 mm HA/LA semi-automatic
1 x 75 mm L/55 No. 2 semi-automatic
2 x .50 MG
1 x .25 MG
Mines 70 73 mines

Propulsion details
Boilers 2 Werkspoor
Machinery 2 Triple-expansion-engines
Range 1440 miles @ 6 knots
Shafts 2
Bunkerage 72 tons coal
Performance 800 hp
Max Speed 11 knots

Photos
Medusa at the quay, with mines type 1907 on the mine deck (Collection Jan Klootwijk).

July 24, 2014 New photos of Medusa added.

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