graduate

Tachi-18 Early Warning Radar


Photograph of
      Tachi-18 early warning radar
National Archives. Via Nakagawa (1997)


Specifications:


Wavelength 319, 306, 294, or 283 cm
Pulse Width 10-70 microsecond
Pulse Repetition Frequency     
375 Hz
Power 50 kW
Range 125 miles (200 km) aircraft group
Antenna
6x4 rotatable reflected dipole array

8800 lb
4000 kg
Production 400 sets from 1944-1


The Japanese Tachi-18 early warning radar (designed during development as the Type B Portable Early Warning Device or Chotampa Keika-ki Otsu, Ido-yo) was a mobile set resembling the American SCR-270. It was the most mobile Japanese Army early warning system, intended to replace the Tachi-7, but it was introduced too late in the war to be deployed outside the home islands.

The Taichi-18 was sometimes supplemented by the Taichi-20 for height finders, operating at around 300 cm wavelength.

References

Grunden (2005)

Nakagawa (1997)

Price (2005)



Valid HTML 4.01 Transitional