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Type 277 Surface Search Radar


Photograph of Type 277 surface search radar

radarpages.co.uk. Fair use may apply.


Specifications:


Wavelength 10 cm
Pulse Width 0.7, 1.5, or 1.9 microsecond
Pulse Repetition Frequency     
500 Hz
Scan Rate
15 rpm
Power 500 kW
Range 23 nautical miles (40 km) battleship
20 nautical miles (37 km) heavy cruiser
18 nautical miles (33 km) destroyer
15 nautical miles (28 km) frigate
10 nautical miles (18 km) submarine
30 nautical miles (55 km) on aircraft at 6000'  (1800 m)
Antenna
Parabolic
Accuracy
50 yards/2000'
45 m/600 m
Production
From 1943-4


The Type 277 was a British naval sea search radar equipped with a PPI display. The RAF adapted it as the Type 52 radar for coastal defense. It had a full parabolic antenna that reduced sea return considerably and also gave it altitude finding capability. It could also be used for fighter direction and fire control.


References

Buderi (1998)

Friedman (1981)

Radarpages.co.uk (accessed 2009-11-11)



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