U-21 submarine

GPTKB entity

Statements (58)
Predicate Object
gptkbp:instance_of gptkb:submarine
gptkbp:bfsLayer 5
gptkbp:bfsParent gptkb:U-20_submarine
gptkbp:armament torpedoes
deck gun
gptkbp:commander gptkb:Kapitänleutnant_Hans_H._von_Schenk
gptkb:Kapitänleutnant_Otto_von_Schrader
Otto von Schrader
gptkbp:commissioned gptkb:1914
gptkbp:constructed_in gptkb:Kaiserliche_Werft_Danzig
gptkbp:crew 40 men
U-boat training schools
gptkbp:decommissioned 1918
gptkbp:deployment gptkb:Monarch
gptkb:World_War_I
gptkbp:design gptkb:Type_U-boat
gptkbp:displacement 1,000 tons
1,200 tons
800 tons
gptkbp:fate scrapped
sunk
gptkbp:first_appearance gptkb:1914
gptkbp:flows_into 1918
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_appearance 1918
gptkbp:launch_vehicle internal torpedo tubes
gptkbp:launched 1913
gptkbp:length 64.7 meters
gptkbp:losses gptkb:HMS_Pathfinder
gptkb:starship
14 ships
gptkbp:mission sank merchant ships
gptkbp:notable_achievement sank 2 cruisers
gptkbp:notable_event sank HMS Pathfinder
gptkbp:notable_feature stealth capabilities
gptkbp:notable_ships gptkb:starship
G7a
12 torpedoes
gptkbp:operational_area gptkb:North_Sea
1914-1918
4 years
gptkbp:operational_status lost at sea
gptkbp:propulsion gptkb:engine
diesel-electric
gptkbp:range 100 nautical miles
50,000 nautical miles
gptkbp:service_years 1918
gptkbp:services gptkb:Imperial_German_Navy
gptkbp:speed 25 knots
20 knots
8 knots
gptkbp:successor gptkb:U-boat_type_VIIC
gptkbp:surface 15,000 nautical miles
gptkbp:type gptkb:football_club