26 pages Joint Airworthiness Committee. Presentation of the reprinted edition of DEF STAN OO-970 (AvP 970) to the Director of the SBAC on behalf of Controller Aircraft MOD(PE) Great Britain
MoD HF radio station D11/R230, in two air-portable cabins, complete to CES; introduced c. 1960 MoD HF Radio Station D11/R230 1960
