Onversaagd-class minesweeper
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 Onverschrokken | |
| Class overview | |
|---|---|
| Name | Onversaagd class |
| Builders | |
| Operators |  Royal Netherlands Navy |
| Built | 1952–1955 |
| In commission | 1954–1987 |
| Planned | 6 |
| Completed | 6 |
| Scrapped | 5 |
| Preserved | 1 |
| General characteristics [1][2] | |
| Type | Minesweeper |
| Displacement | 750 t (740 long tons) |
| Length | 50.29 m (165 ft 0 in) |
| Beam | 10.67 m (35 ft 0 in) |
| Draft | 2.80 m (9 ft 2 in) |
| Propulsion |
|
| Speed | 15.5 knots (28.7 km/h; 17.8 mph) |
| Crew | 72 |
| Armament | 1 x 40 mm gun |
The Onversaagd class was a ship class of six minesweepers that were built in the United States for the Royal Netherlands Navy (RNN).[3][4] They were paid for by the United States under the Mutual Defense Assistance Program (MDAP).[5] The minesweepers were based on the design of the Aggressive class and taken into service of the RNN between 1954 and 1955.[6]
To sweep naval mines the minesweepers of the Onversaagd class were equipped with the Wire Mk1, M Mk 6 A, A Mk 6B and the A Mk 4v.[6] Furthermore, the ships had a single 40 mm gun.[2] In addition, the minesweepers were equipped with a prototype of the UQS-1, but this mine avoidance sonar did not meet expectations.[6]
While the Onversaagd-class minesweepers had a range of 2,200 nautical miles (4,100 km; 2,500 mi), it was deemed insufficient, as it meant that the ships could only stay at sea for a maximum of eight to nine days without having to replenish its oil.[7]