Type 286 Radar

Photograph of Type 286 radar antenna Fair use may apply.


Wavelength 1.4 m
Pulse Width 2 microsecond
Pulse Repetition Frequency     
200-800 Hz
Power 6 kW
Range 8 nautical miles (15 km) on cruiser
4-7 nautical miles (7-13 km) on destroyer
1-1.5 nautical miles (2-3 km) on submarine
2 nautical miles (4 km) on PT boat
15 nautical miles (30 km) on aircraft at 1000 feet (300 meters)
25 nautical miles (45 km) on aircraft at 16,000 feet (5000 meters)
One transmitting dipole cross
Two receiving dipole crosses
200 yards/10 degrees
180 meters/10 degrees
Type 286 from 1940
Type 286P from 1941-2

The Type 286 was a British naval air search radar, derived from the ASV Mark I and available from shortly after the Allied evacuation from Dunkirk in France. It was the first destroyer set, designed for small ships, and was very crude, having no rotating antenna. The target area was scanned by maneuvering the ship.

The 286P introduced a rotating antenna. It also had better bearing accuracy (3-5 degrees). The 286PW was a submarine radar with about half the range.


Buderi (1998)

Friedman (2006)

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