This article lloyd’s maritime atlas free download pdf about the BT Tower in London. Its Post Office code was YTOW. London to the rest of the country, as part of Britain’s microwave network. It replaced a much shorter steel lattice tower which had been built on the roof of the neighbouring Museum telephone exchange in the late 1940s to provide a television link between London and Birmingham.
The taller structure was required to protect the radio links’ “line of sight” against some of the tall buildings in London then in the planning stage. Typical for its time, the building is concrete clad in glass. Initially the first 16 floors were for technical equipment and power. To prevent heat build-up the glass cladding was of a special tint.
Construction began in June 1961, and owing to the building’s height and its having a tower crane jib across the top virtually throughout the whole construction period, it gradually became a very prominent landmark that could be seen from almost anywhere in London. In August 1963 there was even a question raised in parliament about the crane. MP asked the Minister of Public Building and Works how, when the crane on the top of the new Post Office tower had fulfilled its purpose, he proposed to remove it. This is a matter for the contractors. The problem does not have to be solved for about a year but there appears to be no danger of the crane having to be left in situ.
53 metres of London clay and are formed of a concrete raft 27 metres square, a metre thick, reinforced with six layers of cables on top of which sits a reinforced concrete pyramid. It made one revolution every 22 minutes. Tony Benn also designated the tower a mascot of UCL after lobbying by students. Top of the Tower restaurant on 31 October 1971.
The restaurant was closed to the public for security reasons in 1980, the year in which Butlins’ lease eventually expired. Public access to the building ceased in 1981. London and the surrounding area. Due to its importance to the national communications network, the location of the tower was designated an official secret. Post Office Tower could only be referred to as ‘Location 23’. London that was open to the public for about 15 years.
Ordnance Survey maps show the tower. It is also shown in the London A-Z street atlas for 1984. The outside broadcast control is located above the former revolving restaurant, with the kitchens on floor 35. Panoramic view from BT Tower in the evening. File:BT Tower Evening Panorama 2014-03-05 18. Seven colours were programmed to vary constantly at night and intended to appear as a rotating globe to reflect BT’s “connected world” corporate styling. The coloured lights give the tower a distinctive appearance on the London skyline at night.