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gptkbp:instanceOf
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gptkb:marine
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gptkbp:armament
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8 x 21-inch torpedo tubes
2 x 20 mm Oerlikon cannons
1 x 40 mm Bofors gun
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gptkbp:beam
|
6.5 m
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gptkbp:builder
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gptkb:Rotterdamsche_Droogdok_Maatschappij
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gptkbp:class
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gptkb:O_21-class_submarine
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gptkbp:commissioned
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6 July 1940
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gptkbp:complement
|
38
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gptkbp:countryOfOrigin
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gptkb:Netherlands
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gptkbp:decommissioned
|
2 November 1957
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gptkbp:displacement
|
1,205 tons (submerged)
990 tons (surfaced)
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gptkbp:draught
|
3.8 m
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gptkbp:fate
|
scrapped in 1958
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|
https://www.w3.org/2000/01/rdf-schema#label
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HNLMS O 21
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gptkbp:laidDown
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20 November 1937
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gptkbp:launched
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21 October 1939
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gptkbp:length
|
77.7 m
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gptkbp:notableEvent
|
Escaped to the United Kingdom during German invasion of the Netherlands in May 1940
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|
gptkbp:operator
|
gptkb:Royal_Netherlands_Navy
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gptkbp:propulsion
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2 diesel engines, 2 electric motors
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gptkbp:range
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12,000 nautical miles at 9 knots (surfaced)
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gptkbp:service
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gptkb:World_War_II
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gptkbp:speed
|
19.5 knots (surfaced)
9 knots (submerged)
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gptkbp:bfsParent
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gptkb:Royal_Netherlands_Navy_in_the_East_Indies
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gptkbp:bfsLayer
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7
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