asked the Lord President of the Council and Minister of Science which types of marine nuclear reactor are now being studied by the Atomic Energy Authority.

The authority is continuing its collaborative development work on the Vulcain reactor with the Belgian Group, Belgonucleaire. In addition, they are continuing their own research on integral pressurised water reactors.

Does this mean that confidence in these two types of reactor possibilities has not diminished and that we shall not have to look to a third new type to achieve what we want in marine propulsion?

It means that at the moment we are continuing with these and nothing else. I would not like to speculate about the future.