Type 277 radar
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The Type 277 was a surface search and secondary aircraft early warning radar used by the Royal Navy and allies during World War II and the post-war era. It was a major update of the earlier Type 271 r
Type 277 antenna on HMS Swiftsure
The 271 was protected by a unique "lantern" radome and mounted directly to the roof of the radar operator's cabin. Here it is seen on HMCS Sackville.
273Q's most famous role was allowing HMS Duke of York to hunt down Scharnhorst in the Battle of the North Cape. The lantern is about halfway up the mast.
Type 276 on HMS Tuscan, using the original cheese-style antenna.
The Telecommunications Research Establishment was the main United Kingdom research and development organisation for radio navigation, radar, infra-red detection for heat seeking missiles, and related
Type 277 radar
…used, a PPI from the experimental Outfit JE display from EMI, and a second display used to measure range. The later, developed by the Air Ministry's Telecommunications Research Establishment (TRE) used a cursor that allowed the operator to pick out one "blip" on the display and read the elevation and use the range measurement to solve for…
Huts of the TRE, Malvern, winter 1942-3
Radar research memorial at St Aldhelm's Head near Worth Matravers, unveiled by Sir Bernard Lovell