§ Mr. J. P. W. Mallalieu
No constructional defect has been found in H.M.S. "Dreadnought" apart from the hairline cracks referred to in my predecessor's reply to the hon. Member for Gillingham420W
(Mr. Burden) on 27th October last. Similar defects have not so far been found in other nuclear submarines now under construction: some defects were discovered and repaired in H.M.S. "Valiant" before she entered service.