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for use in
British waters in the early 1970s. They consisted of a circular hull with a raised central structure containing a 360° light and foghorn, and sometimes also a radio beacon. They were monitored from onshore and designed to run for extended periods without repair. Their running costs were
110:
Experience showed that it was difficult to attain the required reliability in
British waters due to the high acceleration forces experienced in rough seas with 14m waves and 7 knot currents. Alternative experiments were made with more stable platforms, such as the
97:
to a monitoring shore station. The Hawker
Siddeley models incorporated components from the original General Dynamics design, but were found adequate with only two diesel generator sets — one running continuously for six months, and one on standby. Revolving
74:
continuous output. These were each run in a 72-hour operational cycle of 24 hours under power, followed by 48 at rest. Maintenance and refuelling was at six-month intervals. A
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a contraction of Large
Automatic Navigation BuoY, was a type of floating navigational aid designed to replace
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main lights were substituted for discharge tubes, as they were more easily seen than short-duration flashes.
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115:— a concrete tower on a flat base constructed on shore, floated into place and sunk to rest on the seabed.
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The automatic technology was later used successfully in more conventional lightships, such as the
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UK models followed the
General Dynamics design: Power was supplied by three diesel
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in 1972 and remained in service for 21 years before it was replaced.
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278:. Mersey Lightvessel Preservation Society. Archived from
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182:(2nd ed.). Oxford, U.K.: Oxford University Press.
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estimated to be as low as 10% of those of lightships.
45:
Now obsolete, they were originally made in the USA by
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90:main light and ancillary equipment, including a
156:. Commissioners of Irish Lights. Archived from
245:Beadle, D. G.; Williams, W.F. (January 1973).
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618:This article related to water transport is a
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8:
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180:The Oxford companion to ships and the sea
178:Kemp, Peter, ed. (2005). "Lanby buoy".
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78:provided continuous power at 28 V
7:
608:
606:
590:
276:"History of the Mersey Lightvessels"
125:A LANBY replaced the Bar lightship
622:. You can help Knowledge (XXG) by
247:"The Lanby buoy telemetric system"
23:The LANBY (on left) that replaced
14:
610:
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580:
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70:, individually rated at 5
351:Five Fathom Bank light station
32:Columbia River Maritime Museum
1:
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113:Royal Sovereign Lighthouse
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367:
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210:Rowlands, David (1974).
51:Hawker Siddeley Dynamics
222:: 48–53. Archived from
84:nickel-iron accumulator
35:
684:Water transport stubs
212:"Points of Reference"
22:
669:Nautical terminology
553:Men of the Lightship
337:List of lightvessels
88:xenon discharge tube
361:Lightship Nantucket
679:Navigational buoys
36:
631:
630:
603:
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356:Lightship Ambrose
16:Navigational buoy
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76:static rectifier
47:General Dynamics
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226:on 4 March 2016
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154:"Abbreviations"
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86:to operate the
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49:and adapted by
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476:Lightship 2000
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391:United Kingdom
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216:Design Journal
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95:telemetry link
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559:Trinity House
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282:on 2008-04-22
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189:9780199205684
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160:on 2007-11-19
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122:lightvessel.
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82:, charging a
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624:expanding it
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567: (1904)
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328:Lightvessels
284:. Retrieved
280:the original
270:
258:. Retrieved
250:
240:
228:. Retrieved
224:the original
219:
215:
179:
173:
162:. Retrieved
158:the original
148:
126:
124:
120:Calshot Spit
117:
109:
66:of 230
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38:
37:
26:
542:Light float
449:Finngrundet
428:Carpentaria
251:BBC R&D
100:sealed-beam
64:alternators
43:lightships.
674:Navigation
663:Categories
547:Lighthouse
498:Portsmouth
463:Gedser Rev
435:Chesapeake
286:2008-06-25
164:2008-06-25
140:References
106:Withdrawal
25:lightship
520:Swiftsure
491:Overfalls
483:Nantucket
478:(Helwick)
260:15 August
230:14 August
58:Equipment
34:in Oregon
30:, at the
585:Category
442:Columbia
421:Barnegat
344:Stations
27:Columbia
595:Commons
530:Related
413:Ambrose
405:Museums
386:Ireland
134:estuary
129:in the
565:Relief
508:(1950)
505:Relief
486:(1936)
456:Fladen
416:(1907)
186:
131:Mersey
127:Planet
39:LANBY,
537:Lanby
513:Spurn
470:Huron
379:Lists
620:stub
262:2020
232:2020
184:ISBN
255:BBC
220:310
92:UHF
665::
253:.
249:.
218:.
214:.
198:^
80:DC
72:kW
651:e
644:t
637:v
626:.
320:e
313:t
306:v
289:.
264:.
234:.
192:.
167:.
68:V
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
