HC Deb 19 April 1973 vol 855 c178W
Mr. Michael McNair-Wilson

asked the Secretary of State for the Environment when the prototype of the advanced passenger train is likely to begin its running trials; what will be its likely cruising speed; whether it will run on permanent way or on a new type of track; and if he will make a statement about progress to date with the project.

Mr. Peyton

British Rail hopes to resume track-testing in June and to begin trials with prototype trains in 1975–76, at speeds up to 155 miles per hour on existing tracks, preparatory to their entry into experimental passenger service.