HC Deb 24 February 1972 vol 831 c363W
Mr. Woof

asked the Minister of State for Defence if the Early Warning System at Fylingdales in Yorkshire is still in operation; what is now the warning time in the event of a nuclear attack; and whether any steps are being taken to lengthen this period.

Lord Lambton

Yes. It would give four minutes' warning. We are always examining means of improving our capabilities.