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gptkbp:instance_of
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gptkb:aircraft
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gptkbp:armament
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gptkb:bombs
machine guns
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gptkbp:cockpit
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open cockpit
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gptkbp:configuration
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gptkb:biplane
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gptkbp:country_of_origin
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gptkb:United_Kingdom
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gptkbp:crew
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2
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gptkbp:design
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gptkb:Geoffrey_de_Havilland
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gptkbp:engine
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gptkb:Liberty_L-12
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gptkbp:first_flight
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gptkb:1917
1916
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gptkbp:fuel_capacity
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300 L
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gptkbp:height
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3.05 m
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gptkbp:historical_significance
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first American-built aircraft to be used in combat by the US Army Air Service.
influenced future bomber designs
served in multiple air forces post-war
used in various roles during the war
first American-built aircraft to be used in World War I
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https://www.w3.org/2000/01/rdf-schema#label
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De Havilland DH-4
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gptkbp:influenced_by
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gptkb:De_Havilland_DH-2
gptkb:De_Havilland_DH-3
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gptkbp:introduced
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gptkb:1917
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gptkbp:landing_distance
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1,500 kg
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gptkbp:landing_gear
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conventional
tailwheel
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gptkbp:length
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9.83 m
8.23 m
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gptkbp:manufacturer
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gptkb:De_Havilland
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gptkbp:max_speed
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185 km/h
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gptkbp:max_takeoff_weight
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2,500 kg
1,600 kg
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gptkbp:nickname
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gptkb:Liberty_Plane
Liberty Bomber
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gptkbp:notable_features
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open cockpit
high altitude performance
twin-engine configuration
biplane design
large payload capacity
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gptkbp:notable_users
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gptkb:Australian_Flying_Corps
gptkb:Polish_Air_Force
gptkb:Royal_Air_Force
gptkb:Brazilian_Air_Force
gptkb:French_Air_Force
gptkb:Canadian_Air_Force
gptkb:Czechoslovak_Air_Force
gptkb:New_Zealand_Air_Force
gptkb:Belgian_Air_Force
gptkb:Japanese_Air_Force
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gptkbp:number_built
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over 4,800
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gptkbp:operational_history
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used for training purposes
served in various conflicts
used for aerial photography
used for mail delivery
used in civilian aviation post-war
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gptkbp:operational_use
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gptkb:World_War_I
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gptkbp:payload_capacity
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1,000 lb
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gptkbp:primary_user
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gptkb:United_States_Air_Force
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gptkbp:production_years
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1917-1928
1916-1920
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gptkbp:propeller
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two-bladed
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gptkbp:range
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1,600 km
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gptkbp:related_aircraft
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gptkb:De_Havilland_DH-10
gptkb:De_Havilland_DH-4_M-1
gptkb:De_Havilland_DH-9_A
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gptkbp:retired
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1940s
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gptkbp:retirement
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1930s
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gptkbp:role
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gptkb:transport_aircraft
gptkb:military_aircraft
gptkb:transportation
gptkb:bomber
reconnaissance
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gptkbp:service_ceiling
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6,000 m
5,500 m
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gptkbp:service_entry
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gptkb:1917
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gptkbp:successor
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gptkb:De_Havilland_DH-9
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gptkbp:used_by
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gptkb:Royal_Air_Force
gptkb:United_States_Army_Air_Service
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gptkbp:variant
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gptkb:DH-4_A
gptkb:DH-4_B
gptkb:DH-4_M
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gptkbp:wing_area
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45.5 m²
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gptkbp:wingspan
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14.63 m
12.19 m
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gptkbp:bfsParent
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gptkb:Curtiss_OX-5
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gptkbp:bfsLayer
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6
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