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List of Japanese World War II radars

A list of Japanese radars used during World War II.

Army radar

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Radar used by the Imperial Japanese Army.

Ground-based radar

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  • Ta-Chi 1 Ground-Based Target Tracking Radar Model 1 - SCR-268 1.5 meter band (200 MHz) derivative built in small numbers [1]
  • Ta-Chi 2 Ground-Based Target Tracking Radar Model 2 - SCR-268 1.5 meter band (200 MHz) derivative built in small numbers [1]
  • Ta-Chi 3 Ground-Based Target Tracking Radar Model 3 - (Based on British GL sets captured in Singapore) - 3.75 m (80 MHz) pw = 1 or 2 us, Power = 50 kW, PRF = 1 or 2 kHz (range 40 km), 150 built by Sumitomo Entered service early 1944. Yagi Antenna [1]
  • Ta-Chi 4 Ground-Based Target Tracking Radar Model 4 - SCR-268 1.5 meter band (200 MHz) derivative built in small numbers [1]
  • Type A Bi-static Doppler Interface Detector (High Frequency Warning Device "Ko")
  • Ta-Chi 6 TypeB Fixed Early Warning Device (Fixed Early Warning Device "Otsu") 1943 - 3 meter band (100 MHz) - 60 built
  • Ta-Chi 7 TypeB Mobile Early Warning Device (Mobile Early Warning Device "Otsu") Transportable version of the Ta-Chi 6
  • Ta-Chi 13 Aircraft Guidance System
  • Ta-Chi 18 TypeB Portable Early Warning Device (Portable Early Warning Device "Otsu") - 3 meter band (100 MHz) - 400 built
  • Ta-Chi 20 Fixed Early Warning Device Receiver (for Ta-Chi 6)
  • Ta-Chi 24 Mobil Anti-Aircraft Radar (Japanese-built Würzburg radar)
  • Ta-Chi 28 Aircraft Guidance Device
  • Ta-Chi 31 Ground-Based Target Tracking Radar Model 4 Modify
  • Ta-Chi 35 Height finding radar

Airborne radar

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  • Ta-Ki 1 Model 1 Airborne Surveillance Radar
  • Ta-Ki 1 Model 2 Airborne Surveillance Radar
  • Ta-Ki 1 Model 3 Airborne Surveillance Radar
  • Ta-Ki 11 ECM Device
  • Ta-Ki 15 Aircraft Guidance Device Receiver (for Ta-Chi 13)

Shipborne radar

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  • Ta-Se 1 Anti-Surface Radar
  • Ta-Se 2 Anti-Surface Radar

Medium bomber, with control air-to-air missile device

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  • Mitsubishi Ki-67 Hiryu "Peggy" I KAI Go-IA: This experimental modification was for managed air-to-air guided missile evaluations, during 1944–1945.

Guided missiles

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  • Kawasaki Ki-147 I-Go Type1 – Ko Air-to-Surface Radio Guidance Missile
  • Mitsubishi Ki-148 I-Go Type1-Otsu Air to Surface Radio Guidance
  • Missile I-Go Type 1-Hei
  • "Ke-Go" IR Guidance Air to Surface Missile
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Radar used by the Imperial Japanese Navy

Land-based radar

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DesignationTypeAntennaWave
length		Peak
output		Pulse
length
(μS)		PRF
(Hz)		Detection
range
single
aircraft		Detection
range
formation		WeightFirst
operational		Number
built
Type 2 Mark 1 Model 1 "11"Fixed early warning radarTwo rows of three dipoles3 m5 kW201,000130 km250 km8,700 kgMarch 194230 total
(all marks)
Type 2 Mark 1 Model 1 Mod 1 "11-1"Fixed early warning radarTwo rows of three dipoles3 m5 kW201,000130 km250 km8,700 kgMay 1942
Type 2 Mark 1 Model 1 Mod 2 "11-2"Fixed early warning radarTwo rows of three dipoles3 m20 kW40500130 km250 km8,700 kgMay 1943
Type 2 Mark 1 Model 1 Mod 3 "11-3"Fixed early warning radarTwo rows of three dipoles3 m20 kW40500130 km250 km8,700 kgJuly 1943
Type 2 Mark 1 Model 2 "12-Go"Ground based mobileDipole array with a mat type reflector1.5 m5 kW101,00050 km100 km6,000 kgDecember 194250 total
(all marks)
Type 2 Mark 1 Model 2 Mod 2 "12-Go"Ground based mobileDipole array with a mat type reflector2 m5 kW101,00050 km100 km6,000 kgDecember 1943
Type 2 Mark 1 Model 2 Mod 3 "12-Go"Ground based mobileDipole array with a mat type reflector2 m5 kW10500150 km effective
300 km max		6,000 kgJanuary 1944
Type 3 Mark 1 Model 1 "11-Go"Shore based medium size radarTwo arrays of 5 dipoles2 m10 kW20500150 km effective
300 km max		October 1943unknown
Type 3 Mark 1 Model 3 "13-Go"Multi-purpose portable early
warning radar. Adapted for
submarine use		Dipole array with mat type reflector2 m10 kW1050050 km100 km110 kgAugust 19431,000
Type 3 Mark 1 Model 4 "14-Go"Ship-borne long-Range
air search		Four two element yagis6 m100 kW20250250 km360 km to
450 km		30,000 kgMay 19452 to 5
Type 2 Mark 4 Model 1 S3Anti-aircraft Fire-Control Radar
(Copy of SCR-268)		2 × 4 dipole array with mat type reflector1.5 m13 kW32,00020 km40 km5,000 kgAugust 194350
Type 2 Mark 4 Model 2 S24Anti-aircraft Fire-Control Radar
(Copy of SCR-268)		4 Yagis1.5 m13 kW31,00020 km40 km5,000 kgOctober 194460
Sources:[2][3][4]

Airborne radar

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DesignationTypeAntennaWave
length		Peak
output		Pulse
length
(μS)		PRF
(hz)		Detection
range
single
aircraft		Detection
range
formation		WeightFirst
operational		Number
built
Type 3 Mark 6 Model 4 (Type H6)Airborne radarYagi type2 m3 kW1070 km100 km110 kgAugust 19422,000
Type FM-1Air and surface search radarYagi Type2 m42 kW70 km100 km70 kgSeptember 1944Experimental only
Type N6Air and surface search radarYagi type1.2 m2 kW50 km70 km60 kgOctober 194420
Type FM-3Air and surface search radarYagi type2 m2 kW50 km70 km60 kgJune 1945100
FD-2Air and surface search radarYagi type0.25 m2 kW<10 km3 km70 kgAugust 1944 [5]100
  • Type 5 Model 1 Radio Location Night Vision Device

Shipborne radar

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  • Type 2 Mark 2 Model 1 Air Search Radar ("21-Go" Air Search Radar)
  • Type 2 Mark 2 Model 2 Modify 3 Anti-Surface, Fire-assisting Radar for Submarine ("21-Go" Modify 3 Anti-Surface, Fire-assisting Radar)
  • Type 2 Mark 2 Model 2 Modify 4 Anti-Surface, Fire-assisting Radar for Ship ("21-Go" Modify 4 Anti-Surface, Fire-assisting Radar)
  • Type 2 Mark 3 Model 1 Anti-Surface Fire-Control Radar ("31-Go" Anti Surface Fire-Control Radar)
  • Type 2 Mark 3 Model 2 Anti-Surface Fire-Control Radar ("32-Go" Anti Surface Fire-Control Radar)
  • Type 2 Mark 3 Model 3 Anti-Surface Fire-Control Radar ("33-Go" Anti Surface Fire-Control Radar)

Radar-equipped bomber devices for maritime reconnaissance/antisubmarine patrol

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  • Mitsubishi G3M3 (Model 23) "Nell": This bomber for long range capacity, in 1943, was used as a Maritime reconnaissance/Radar aircraft for long range missions and some electronic warfare work in the seas.
  • Mitsubishi G4M1 (Model 11/12) "Betty": From 1942, the G4M of this model was also used for the same purpose as the G3M bomber, for maritime long range capacities with sea radar and electronic warfare equipment.
  • Nakajima B5N2 "Kate"/Nakajima B6N1-2 Tenzan "Jill": In 1944, some torpedo bombers of mentioned types used with antisubmarine, radar detection (with finding radar equipment) and similar purposes in maritime short or medium range missions from carriers or land bases.
  • Aichi E13A1b "Jake" Mark 11B: like model 11A, added Air-Surface radar and other night conversion with radar (E13A1b-S).
  • Kawanishi H6K2,4 and 5 "Mavis" Marks 11,22 and 23: More powerful engines, for ultra long range missions, long range sea radio equipment and air-surface finding radar added.
  • Kawanishi H8K2 "Emily" Mark 12: more potent engines for ultra-long range maritime recon missions, major heavy armament; also long range sea radio equipment and air-surface search radar added
  • Kawanishi E7K2 "Alf" Mark 2: short range hydroplane, was installing magnetic detection equipment and finding surface radar for short range patrol and antisubmarine missions
  • Kyushu Q3W1 Nankai (South Sea): two place version of training aircraft Kyūshū K11W1 Shiragiku, for anti-submarine patrol - was equipped with sea-surface finding antisubmarine sonar (one prototype)
  • Kyūshū Q1W1 Tokai "Lorna": Anti-submarine patrol aircraft. Was equipped with sea-surface radar and antisubmarine equipment for escorted convoys in the East China Sea, the Yellow Sea and the Sea of Japan during short times in 1944-45.
  • Mitsubishi Q2M Taiyō: Advanced Antisubmarine patrol design, derived from Mitsubishi Ki-67 Hiryū "Peggy" Bomber. Was equipped with magnetic antisubmarine search device, air-surface radar and electronic warfare equipment.
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  • Funryu Type1 Surface to Air Radio Guidance Missile
  • Funryu Type2 Surface to Air Radio Guidance Missile
  • Funryu Type3 Surface to Air Radio Guidance Missile
  • Funryu Type4 Surface to Air Radio Guidance Missile

References

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  1. ^ a b c d Greg Goebel. "Japanese Radar Technology at War".
  2. ^ Martin Favorite. "Japanese Radar Equipment in World War II". Archived from the original on 13 April 2016.
  3. ^ Yasuzo Nakagawa (1997). Japanese Radar and Related Weapons. Aegean Park Press. ISBN 0-89412-271-1.
  4. ^ Japanese Land-Based Radar. U.S. Naval Technical Mission to Japan. 1946.
  5. ^ but not officially used during the war
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