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Airport of call

Letters

I would like to draw your attention to three key ingredients that made the unusual method of construction of Heathrow airport's new control tower (NCE last week) a reality.

The rst is the attention to tolerances for the steel sections of the tower shaft that are a credit to the fabricator and erector Watsons.

The second is the bespoke Fagioli PSC control systems that enabled the lifting jacks to work in conjunction with the tensioned guying jacks while enabling the tower to be kept vertical in wind loading.

The third is the high level of personal commitment, co-operation and quality of teamwork by everyone involved from the client down, and the spirit of 'making it happen'.

As a matter of correction 'Dorman Long' was not the strand jacking sub contractor - it was Fagioli PSC. Dorman Long Technology provided the lift master Mike Wade, and procurement of various hydraulic systems and erection aides related to the mechanisms of the temporary works.

Temporary works concept and detailed design was by Rolton Group.

David Rolton, chairman Rolton Group, non executive director Dorman Long Technology, The Charles Parker Building, Midland Road, Higham Ferrers, Northants, NN10 8DN

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