- Ships in class
- Sources
{{other ships|Hydra class frigate|Hydra class battleship}}{{no footnotes|date=February 2013}}{{Infobox ship image| Ship image= HNLMS. Hydra (1911).jpg | Ship caption= HNLMS Hydra
}}{{Infobox ship class overview | Name=Hydra class | Builders=Rijkswerf, Amsterdam | NLD}} | Class before= | Class after= | Subclasses= | Cost= | Built range=1910–1912 | In service range= | In commission range= 1911–1964 | Total ships building= | Total ships planned= | Total ships completed=2 | Total ships cancelled= | Total ships active= | Total ships laid up= | Total ships lost=1 | Total ships retired= | Total ships preserved=
}}{{Infobox ship characteristics | Hide header= | Header caption= | Ship type=Minelayer | 593|t|LT|0|abbr=on}} standard- {{convert|657|t|LT|0|abbr=on}} full
| 49.7|m|ftin|abbr=on}} | Ship beam= | Ship height= | Ship draft= | Ship depth= | Ship power= | 800|hp|abbr=on}} engine | 11|kn|lk=in}} | Ship range= | Ship endurance= | Ship complement=59 | Ship time to activate= | Ship sensors= | Ship EW= | Ship armament=*Hydra:- 3 × {{convert|75|mm|in|0|abbr=on}} guns (3×1)
- 2 × .50 calibre machine guns
- 70 naval mines
- Medusa:
- 2 × {{convert|75|mm|in|0|abbr=on}} HA/LA semi-automatic guns
- 1 × {{convert|75|mm|in|0|abbr=on}} L/55 No. 2 semi-automatic gun
- 2 × .50 calibre machine guns
- 1 × .25 calibre machine gun
- 73 naval mines
| Ship armor= | Ship notes=
}} | The Hydra class were two minelayers of the Royal Netherlands Navy, built to serve in the Dutch East Indies and Dutch territorial waters in Europe. The construction of the ships began in 1910 and was completed in 1912. The ships were built by the navy yard (Rijkswerf) in Amsterdam. Both ships were still in service during the Second World War. Only Medusa escaped to the United Kingdom, however. Hydra was lost after the ship was fired on by an anti-tank weapon. The minelayer sank in the waters off Zeeland. Ships in class - {{HNLMS|Hydra|1912}} (1912–1940)
- {{HNLMS|Medusa|1911}} (1911–1964)
Sources- netherlandsnavy.nl Hydra-class minelayers
{{Commons category|Hydra class minelayer}}{{WWIIDutchShips}} 3 : Mine warfare vessel classes|Hydra-class minelayers|World War II minelayers of the Netherlands |