The Masts
The masts are made from sheet steel which was rolled into 'cans'. These were then welded together to produce the tubes for the masts.
The front mast is 2.5 m (8.2 ft) in diameter and was delivered to site in nine sections. It weighs approximately 275 long tons (279 t).
The back mast is 1.75 m (5.7 ft) diameter and was delivered to site in seven sections. It weighs approximately 177 long tons (180 t).
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