§ Mr. Foulkes
To ask the Secretary of State for Defence what is the minimum permitted altitude for use of thrust vectoring in forward flight by Harrier aircraft when evading mock interceptions over the United Kingdom. 
§ Mr. Soames
The use of thrust vectoring up to 30 deg. of nozzle deflection in forward flight is permitted down to approved minimum separation distances within the United Kingdom low flying system when Harrier aircraft are evading mock interceptions. Full nozzle deflection thrust vectoring is permitted above 7,000 ft.