HC Deb 17 November 1967 vol 754 c214W
Mr. Corfield

asked the Minister of Technology (1) how the terrain avoidance capability of the F111K compares with the terrain following capability of the TSR 2;

(2) how the ground level range of the F111K at supersonic speed compares with that of the TSR 2.

Mr. Stonehouse

It is not normal practice to disclose details of the performance of operational aircraft either specifically or by reference to other aircraft. In any case no meaningful comparison can be made.