HC Deb 12 May 1983 vol 42 c475W
Mr. Cook

asked the Secretary of State for Defence what plans exist for the development of the special communications systems for Trident submarines; and how much they will cost.

Mr. Ian Stewart

The communications fit for our Trident submarines will be based on that currently provided for Polaris, exploiting, where appropriate, available improvements in technology. For security reasons I am not able to give details.