Sir Nicholas Soames: To ask the Secretary of State for Defence, when he expects the trials of the Lockhead Martin TPS-77 radar system to be completed and the results to be published.

Mr Philip Dunne, Parliamentary Under Secretary of State and Minister for Defence Equipment, Support and Technology (including Defence Exports): Flight trials have completed for the first TPS-77 radar at Trimingham and the results are being assessed. Flight trials are planned for two further radars at Brizlee Wood and Staxton Wold, beginning in late 2015. The Ministry of Defence has no plans to publish the results of the flight trials for national security and commercial reasons. 

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