HC Deb 13 November 1972 vol 846 c12W
62. Mr. Jessel

asked the Secretary of State for Trade and Industry if he will draw the attention of the shipping and shipbuilding industries to benefits to be derived from the rotating cylinder rudder invented by the National Physical Laboratory.

Mr. Michael Heseltine

This rudder has already been drawn to the industries' attention in the usual ways. In this case there is in addition the attraction of a full-size prototype of which a demonstration will be held.