Lanby buoy
Encyclopedia
Lanby buoy is a contraction of Large Automatic Navigation BuoY. Lanby buoys were originally made by Hawker Siddeley Dynamics and were used from the 1970s onwards. The buoys are intended to replace lightships
and are constructed as a circular hull with a central light to provide all-round visibility and a foghorn. They may also contain radio and radio beacons.
The navigation buoy is monitored remotely from onshore and is designed to run for extended periods without repair. The running costs were estimated to be as little as 10% of those of a lightship. A Lanby buoy replaced the Bar Lightship PLANET in the Mersey
estuary
in 1972 and remained in service for 21 years before being replaced itself.
Lightvessel
A lightvessel, or lightship, is a ship which acts as a lighthouse. They are used in waters that are too deep or otherwise unsuitable for lighthouse construction...
and are constructed as a circular hull with a central light to provide all-round visibility and a foghorn. They may also contain radio and radio beacons.
The navigation buoy is monitored remotely from onshore and is designed to run for extended periods without repair. The running costs were estimated to be as little as 10% of those of a lightship. A Lanby buoy replaced the Bar Lightship PLANET in the Mersey
River Mersey
The River Mersey is a river in North West England. It is around long, stretching from Stockport, Greater Manchester, and ending at Liverpool Bay, Merseyside. For centuries, it formed part of the ancient county divide between Lancashire and Cheshire....
estuary
Estuary
An estuary is a partly enclosed coastal body of water with one or more rivers or streams flowing into it, and with a free connection to the open sea....
in 1972 and remained in service for 21 years before being replaced itself.