Type 271 radar
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The Type 271 was a surface search radar used by the Royal Navy and allies during World War II. The first widely used naval microwave-frequency system, it was equipped with an antenna small enough to a
Type 271 was the primary sub-hunting radar of HMCS Sackville. Its lighthouse-like radome can be seen above the bridge.
The cavity magnetron revolutionized radar development.
HMS Orchis was fitted with the first production 271, seen here atop the bridge.
HMS Nigeria was the first ship to mount the operational Type 273, which can be seen on the mast above the dark rectangle of her Type 284.
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 271 radar
…the late-war period, improved versions of all of these designs were introduced. Originally known as the Mark V models, in March 1943 these were renamed Type 277, 276 and 293. These new models were retrofitted as ships came in for servicing and were widespread by late 1944. Type 271Q models remained in service…
Type 277 antenna on HMS Swiftsure
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.