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}}