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Statements

Subject Item
n2:APS-4_search_radar
rdfs:label
AN/APS-4 search radar
rdfs:comment
The AN/APS-4, originally known as ASH (air-surface, model H) is an early military air to air and air to surface radar used by American and British warplanes during World War II. APS-4 operated in the X band at 3 cm, compared to the 10 cm S band used by most radars of the era. This allowed the antenna to be greatly reduced in size and the unit as a whole to fit into a single streamlined fairing that could be mounted to many aircraft.
dbp:name
AN/APS-4 search radar
foaf:depiction
n9:APS-4.jpg n9:An-APS-4_side_view.jpg
dcterms:subject
dbc:Aircraft_radars dbc:World_War_II_Allied_electronics dbc:X_band_radar dbc:World_War_II_radars
dbo:wikiPageID
57545362
dbo:wikiPageRevisionID
1094875906
dbo:wikiPageWikiLink
n4:An-APS-4_side_view.jpg dbr:Fiberglass dbr:Surface-search_radar dbr:Grumman_F6F_Hellcat dbr:Flight_control_surfaces dbr:RAF dbr:X_band dbr:World_War_II dbr:Fairey_Firefly dbr:Surface_search_radar dbr:S_band dbr:Fairey_Barracuda dbr:X-band dbc:World_War_II_radars dbc:World_War_II_Allied_electronics dbr:Grumman_TBF_Avenger dbr:North_American_P-82_Twin_Mustang dbc:X_band_radar dbr:Vought_F4U_Corsair dbr:Curtiss_SB2C_Helldiver dbr:Douglas_C-47_Skytrain dbr:Grumman_Avenger dbc:Aircraft_radars dbr:Airborne_Interception_radar dbr:Radar dbr:De_Havilland_Mosquito
owl:sameAs
n11:9TbPk wikidata:Q60741003
dbp:wikiPageUsesTemplate
dbt:Reflist dbt:Convert dbt:Infobox_radar dbt:Short_description dbt:Start_date
dbo:thumbnail
n9:APS-4.jpg?width=300
dbp:caption
Front-oblique view of the AN/APS-4 radar pod without its external shell
dbp:country
UK
dbp:frequency
3300
dbp:otherNames
ASH
dbp:power
40.0
dbp:related
AN/APS-5, AN/APS-6
dbp:type
dbr:Surface-search_radar
dbo:abstract
The AN/APS-4, originally known as ASH (air-surface, model H) is an early military air to air and air to surface radar used by American and British warplanes during World War II. APS-4 operated in the X band at 3 cm, compared to the 10 cm S band used by most radars of the era. This allowed the antenna to be greatly reduced in size and the unit as a whole to fit into a single streamlined fairing that could be mounted to many aircraft. In American service it was used on many aircraft, including the Douglas C-47 Skytrain, North American P-82D/F/H Twin Mustang, Vought F4U-2\5N Corsair, Grumman F6F-3/5 Hellcat, Curtiss SB2C-5 Helldiver and Grumman TBF-3 and TBM-3S Avenger. In RAF service it was known as ASV Mark IX and equipped a number of aircraft including the Fairey Firefly, Fairey Barracuda, de Havilland Mosquito and a small number of Grumman Avengers.
dbp:azimuth
320
dbp:beamwidth
~15º vertical ~10º horizontal,
dbp:precision
~5º
dbp:prf
660
dbp:pulsewidth
1
dbp:rpm
60
prov:wasDerivedFrom
n15:APS-4_search_radar?oldid=1094875906&ns=0
dbo:wikiPageLength
5072
foaf:isPrimaryTopicOf
n15:APS-4_search_radar