asked the Minister of Defence what plans are being made to make the ground-to-air Thunderbird missile available to the North Atlantic Treaty Organisation; what its production has cost to date; and what was the original estimate.

Thunderbird missiles have been on offer to our N.A.T.O. allies for the past three years, for procurement either from Britain or from local manufacture: so far those other N.A.T.O. countries with a requirement for a weapon in this class have adopted the American Hawk missile.It would not be in the public interest to give the cost of production of Thunderbird.