Vickers Valiant -- This first air-to-air photograph of Vickers Valiant for-engined jet bombers in squadron service in R.A.F. Bomber Command were taken during rehearsals for the fly-past by Valiants and Hawker Hunter jet fighters at the Society of British Aircraft Constructor's annual display at Farnborough, Hants, next week. Twelve Valiants from No. 138 Squadron. (Wing Commander R.G.W. Oakley, D.S.O., D.F.C., D.F.M.), based at Wittering, will take part in the fly-past. The Vickers Valiant is the