Type 279 radar
{{Infobox radar
|name = Type 279
|image =
|caption =
|country = United Kingdom
|introdate = 1940
|number =
|type = Early-warning radar
|frequency = 43 MHz
|PRF = 50 per second
|beamwidth =
|pulsewidth = 7–30 μs
|RPM =
|range = {{convert|50|nmi|lk=in}}
|altitude =
|diameter =
|azimuth =
|elevation =
|precision =
|power = 70 kW
|other names =
}}
The Type 279 radar was a British naval early-warning radar developed during World War II from the Type 79Friedman, p. 190 metric early-warning set. It initially had separate transmitting and receiving antennas that were later combined in the Type 279M to single-antenna operation. This set also had a secondary surface-search mode with surface and aerial gunnery capability and used a Precision Ranging Panel, which passed accurate radar ranges directly to the HACS table (analog computer).Howse, Radar at Sea: The Royal Navy in World War II{{Cite web |url=http://www.rnmuseumradarandcommunications2006.org.uk/RADAR%20IN%20THE%20RN%20AT%20THE%20END%20OF%20WW2.pdf |title=RADAR IN THE RN AT THE END OF WW2 |access-date=2013-01-28 |archive-date=2015-09-24 |archive-url=https://web.archive.org/web/20150924091525/http://www.rnmuseumradarandcommunications2006.org.uk/RADAR%20IN%20THE%20RN%20AT%20THE%20END%20OF%20WW2.pdf |url-status=dead }}
Specifications
class="wikitable"
!Type ! Aerial outfit ! Peak power (kW) ! Frequency (MHz) ! Wavelength (mm) ! In service |
279
| |70 |39.9 |7,450 |1940 |
279M
| |70 |39.9 |7,450 |1941 |
Notes
{{Reflist|30em}}
Bibliography
- {{cite book|last=Brown|first=Louis|title=A Radar History of World War II: Technological and Military Imperatives|publisher=Institute of Physics Publishing|location=Bristol and Philadelphia|year=1999|isbn=0-7503-0659-9}}
- {{cite book|last=Friedman|first=Norman|title=Naval Radar|year=1981|publisher=Conway Maritime Press|location=London|isbn=0-85177-238-2}}
- {{cite book|last=Swords|first=Sean S.|title=Technical History of the Beginnings of Radar|publisher=IEE/Peter Peregrinus|location=London|year=1986|isbn=0-86341-043-X}}
- {{cite book|last=Watson|first=Raymond C. Jr.|title=Radar Origins Worldwide: History of Its Evolution in 13 Nations Through World War II|publisher=Trafford|year=2009|isbn=978-1-4269-2111-7}}
External links
- [https://web.archive.org/web/20090406203547/http://www.rnmuseumradarandcommunications2006.org.uk/index.html The RN Radar and Communications Museum ]