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239:, each scanning about 5 degrees vertically. Other 3D radars of the era generally picked one solution or the other, using a network of separate feedhorns or a single vertically scanning feed. The use of four magnetrons gave it better range performance; against large high-flying aircraft it had a typical range of 180 nmi (330 km; 210 mi), although this fell to as short as 40 nmi (74 km; 46 mi) against small low flying aircraft.
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The original design called for a maximum weight of 15 long tons (15 t), and a maximum turning circle while scanning of 25 feet (7.6 m). Many Navy designs of the early 1950s intended to mount the 984, and some sported two installations, fore and aft. As the design matured its weight
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that developed "tracks" for aircraft in a semi-automated fashion. This greatly reduced operator workload, allowing the overall system to track many dozens of formations of aircraft while continuing to scan for new contacts, what would today be known as
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continued to grow, ultimately reaching 30.5 long tons (31.0 t), making it too heavy for most ships. At the same time, the Navy's inventory of large ships was shrinking. Ultimately it was mounted on only the aircraft carriers
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The Type 984 was different from most radars in a number of ways. For one, it used a lens made of metal tubes in place of the more traditional
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A key part of the overall Type 984 installation was the
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314:. Taylor & Francis. p. 256.
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255:(TWS). In several tests against
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376:The Aircraft Carrier Victorious
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244:Comprehensive Display System
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399:HMS Collingwood Collection
248:electromechanical computer
184:(330 km; 210 mi)
338:Henson, Jason W. (2013).
310:Harding, Richard (2004).
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142:Country of origin
373:Watton, Ross (2004).
211:system used for both
344:harpoondatabases.com
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379:. Conway Maritime.
340:"Type 984 3D radar"
265:air traffic control
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350:on 4 December 2013
261:military exercises
130:Type 984 radar of
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223:Description
414:Categories
354:1 December
297:References
290:Victorious
246:(CDS), an
195:Royal Navy
150:Introduced
134:Victorious
66:newspapers
237:feedhorns
180:180
169:Frequency
132:HMS
219:system.
191:Type 984
119:Type 984
257:US Navy
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284:Hermes
209:S band
193:was a
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161:built
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