HC Deb 18 March 1964 vol 691 c197W
Mr. Wainwright

asked the Civil Lord of the Admiralty when building will commence on Polaris submarines Nos. 3, 4 and 5, respectively.

Mr. Hay

Specialised equipment and long lead items for all these vessels have been or are being ordered. Building will commence on them at approximately six-monthly intervals from October next.