|
gptkbp:instance_of
|
gptkb:submarine
|
|
gptkbp:armament
|
torpedoes
deck gun
|
|
gptkbp:builder
|
gptkb:Kaiserliche_Werft_Danzig
|
|
gptkbp:commander
|
gptkb:Kapitänleutnant_Hans_H._von_Schenk
gptkb:Kapitänleutnant_Otto_von_Schrader
|
|
gptkbp:commissioned
|
gptkb:1914
|
|
gptkbp:crew
|
40 men
U-boat training schools
|
|
gptkbp:decommissioned
|
1918
|
|
gptkbp:deployed_by
|
gptkb:German_Empire
|
|
gptkbp:deployment
|
gptkb:World_War_I
|
|
gptkbp:design
|
gptkb:Type_U-boat
|
|
gptkbp:displacement
|
1,000 tons
800 tons
|
|
gptkbp:displacement_submerged
|
1,200 tons
|
|
gptkbp:fate
|
sunk
|
|
gptkbp:fate_after_service
|
scrapped
|
|
gptkbp:first_patrol
|
gptkb:1914
|
|
gptkbp:historical_context
|
World War I naval warfare
|
|
gptkbp:historical_impact
|
changed naval tactics.
|
|
gptkbp:historical_significance
|
first submarine to sink a warship with torpedoes
|
|
gptkbp:home_port
|
gptkb:Wilhelmshaven
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
U-21 submarine
|
|
gptkbp:last_patrol
|
1918
|
|
gptkbp:launched
|
1913
|
|
gptkbp:length
|
64.7 meters
|
|
gptkbp:notable_achievement
|
sank 2 cruisers
|
|
gptkbp:notable_commanders
|
Otto von Schrader
|
|
gptkbp:notable_event
|
sank HMS Pathfinder
|
|
gptkbp:notable_feature
|
stealth capabilities
|
|
gptkbp:notable_mission
|
sank merchant ships
|
|
gptkbp:notable_ships
|
G7a
12 torpedoes
|
|
gptkbp:operational_area
|
gptkb:North_Sea
|
|
gptkbp:operational_period
|
1914-1918
4 years
|
|
gptkbp:operational_status
|
lost at sea
|
|
gptkbp:propulsion
|
gptkb:diesel_engine
diesel-electric
|
|
gptkbp:range
|
50,000 nautical miles
|
|
gptkbp:sank_in
|
1918
|
|
gptkbp:service
|
gptkb:Imperial_German_Navy
|
|
gptkbp:service_years
|
1918
|
|
gptkbp:speed
|
25 knots
20 knots
|
|
gptkbp:submerged_range
|
100 nautical miles
|
|
gptkbp:submerged_speed
|
8 knots
|
|
gptkbp:successor
|
gptkb:U-boat_type_VIIC
|
|
gptkbp:sunk
|
gptkb:Royal_Navy
gptkb:HMS_Pathfinder
14 ships
|
|
gptkbp:surface_range
|
15,000 nautical miles
|
|
gptkbp:torpedo_launch_system
|
internal torpedo tubes
|
|
gptkbp:type
|
gptkb:boat
|
|
gptkbp:type_of_vessel
|
gptkb:naval_warfare
|
|
gptkbp:bfsParent
|
gptkb:U-20_submarine
|
|
gptkbp:bfsLayer
|
6
|