Sensor: BR, Radar, Type 281

ref:Flix000001 2008 41 016

Related Types	Ships Fitted \| Radars Similar
Related Pages	Standard View \| Comparison Of Similars
Sensor	BR, Radar, Type 281

Developed By Country	Great Britain
In Service YMD	1940 Dec 01
Depicted In Image
Covered By Document	ASDIC, RADAR And IFF SYSTEMS ABOARD HMCS HAIDA Naval Weapons Of The World
Horizontal Beamwidth Degree	35
Vertical Beamwidth Degree	35
Range Nautical Mile	120
Output Power	350kW
Sensor Type	Radar
Antenna Rotation Rev Per Minute	4
Radar Type	Air Search

	Details
	Widely used.

Sensors
1) Improved In Sensor	2) 1: as Class Improvement	3) 2: Details
BR, Radar, Type 281 B ##	N	don't know what changed

Ships
1) Fitted In Ship	2) 1: as Sensor Fitting	3) 2: Fitted YMD	4) 2: Removed YMD	5) 2: Details
HMS Valiant	N	1942 Jul 01
HMS Warspite	N	1941 Jan 01
HMS Malaya	N	1941 Jul 01
HMS Revenge	N	1941 Dec 01
HMS Royal Sovereign	N	1943 Sep 01
HMS Hawkins	N	1942 Jan 01
HMS Frobisher	N	1942 Mar 01
HMS Carlisle	N	1941 Apr 01
HMS Enterprise	N	1943 Oct 01
HMS Emerald	N	1943 Apr 01
HMS Nelson	N	1938 Jan 01
HMS Rodney	N	1941 Sep 01
HMS Berwick	N	1941 Jan 01
HMS Cumberland	N	1941 Oct 01
HMS Kent	N	1941 Jan 01
HMS Devonshire	N	1941 Jan 01
HMS Sussex	N	1942 Jan 01
HMAS HMS Shropshire	N	1941 Dec 01
HMS Norfolk	N	1941 Sep 01
HMS Neptune	N	1941 Jan 01
HMS Arethusa	N	1942 Mar 01
HMS Sheffield	N	1942 Jul 01
HMS Glasgow	N	1942 Jun 01	1945 May 01
HMS Birmingham	N		1943 Aug 01
HMS Liverpool	N	1945 Jul 01
HMS Belfast	N	1942 Jan 01
HMS King George V	N	1944 Jul 01
HMS Duke Of York	N	1941 Nov 04
HMS Howe	N	1942 Aug 29	1944 May 01
HMS Anson	N	1942 Jun 22	1945 Mar 01
HMS Phoebe	N	1942 Apr 01
HMS Euryalus	N	1943 Jul 01
HMS Dido	N
HMS Newfoundland ##	N		1944 Jan 01	Aerials fitted at top of both masts.

Lengths
Wave Length	Wartime Radar Band	Electro Magnetic Radiation Frequency
3.5m	VHF	85.654MHz

Seconds
Pulse Length Second	Implied Min Range	Estimated Range Resolution
5u	1 498.962m	749.481m

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