| Country of origin | United Kingdom |
|---|---|
| Introduced | 1940 |
| Type | Fire-control radar |
| Frequency | 600 MHz |
| Beamwidth |
|
| Pulsewidth | 2 μs |
| Range | 18,000 yd (16,000 m) |
| Altitude | 15,000 ft (4,600 m) |
| Precision | 150 yd (140 m) |
| Power | 25 kW |
The Type 285 radar was a British naval gunnery radar developed during the Second World War. The Type 285 was used as a surface and anti-aircraft ranging radar on smaller ships, and as an anti-aircraft radar on larger ships. 1 The prototype was tested at sea aboard the escort destroyer HMS Southdown in August 1940.2
The Type 284 radar used the same electronics with a different antenna system, and was used for surface fire control on larger ships (cruisers and battleships).1
| Type | Aerial outfit | Peak power (kW) | Frequency (MHz) | Wavelength (cm) | In service |
|---|---|---|---|---|---|
| 285 | 25 | 600 | 50 | 1941 | |
| 285M | 150 | 600 | 50 | 1941 | |
| 285P | 150 | 600 | 50 | 1942 |
Notes
Notes
- "RADAR IN THE RN AT THE END OF WW2" (PDF). Archived from the original (PDF) on 24 September 2015. Retrieved 24 February 2025.
- Campbell, p. 16
Bibliography
Bibliography
- Campbell, John (1985). Naval Weapons of World War II. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-459-2.
- Friedman, Norman (1981). Naval Radar. London: Conway Maritime Press. ISBN 0-85177-238-2.
- Watson, Raymond C. Jr. (2009). Radar Origins Worldwide: History of Its Evolution in 13 Nations Through World War II. Trafford. ISBN 978-1-4269-2111-7.