The following table shows the man-hours of work to complete the recent Revalidation Assisted Maintenance Periods (RAMPs) for HMS Vigilant, HMS Vengeance and HMS Sceptre:
RAMP Man-hours Period (weeks) HMS Vigilant 116,000 40 HMS Vengeance 71,000 26 HMS Sceptre 97,500 40
The figures include work carried out by both MOD staff and staff employed by Babcock Naval Services, who carried out the RAMPS on behalf of the Department, but does not include the time worked by subcontractors as this information is not held.
Faslane and Coulport form part of HM Naval Base Clyde, which carries out all the normal functions of a naval base. The requested information is not centrally held and could be provided only at disproportionate cost, but it is estimated that around 60 per cent. of the total working hours of civilian personnel employed at the naval base is spent on Trident-related work.