page_title: List of World War II British naval radar
section_title: Type 277
hierarchical_section_title: List of World War II British naval radar / Sets / Type 277
caption_attribution_description: English: The Royal Navy during the Second World War A general surface search Radar set with a Type 277 aerial fitted to HMS Swiftsure, a Minotaur class cruiser at Scapa Flow. The parabolic reflector is made of wire mesh, in order to lower its weight and wind loading. On the left is the drive motor that is used to stabilize the antenna vertically as the ship rolls. Opposite on the right is a rotating waveguide connection. The waveguide, labeled W7897, runs behind the reflector to the top, and then down the face of the reflector. A second waveguide, labeled W7899 (or W5899), connects the rotating joint to the base of the mount, where it meets another rotating connection.
context_page_description: This page is a List of World War II British naval radar.
context_section_description: Originally known as Type 271 Mark V, this was a significant upgrade of the original design and was later renamed to make this clear. Used a single transmit/receive antenna, waveguides instead of coaxial cables, and a much more powerful magnetron that significantly improved all-around performance. Aerial Outfit AUK was a parabolic dish, ANU was a cropped paraboloid. Fitted on a "nodding" mount, often used as a height finding set. Superseded in service by Type 278 height finder in County-class destroyers.
caption: A general surface search Radar set with a Type 277 aerial fitted to HMS Swiftsure (08), a Minotaur class cruiser at Scapa Flow.
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