asked the Secretary of State for Air whether it is proposed to move the directorate of research from London to Farnborough; what is the total number of personnel involved; whether the difficulties of housing the present royal aircraft establishment staff at Farnborough have already been made more acute by the transfer of the staff from Biggin Hill; whether suitable arrangements for providing adequate housing will be made before such transfer is effected: whether he will guarantee that reasonable notice is given to the staff concerned before such move is made: and that no member of the staff be requested to move without at least six months' notice, in order that the hardship and inconvenience inevitable to those having houses or flats in London may be reduced as far as possible?