Papers of MRAF Sir John Slessor, 1965-1968, including: correspondence regarding the Defence Review on Naval Airpower with Air Chief Marshal Sir Charles Elworthy; W M Mills, Ministry of Defence; Edward Shackleton, Ministry of Defence; Hawker Siddeley Aviation Ltd; Air Marshal Sir Kenneth Cross, Transport Command; and others, 1965-1968, particularly debating the use of aircraft carriers. Correspondence regarding the Battle of the Atlantic with Vice Admiral Sir Peter Gretton; Capt Stephen Roskill, historian; the Air Historical Branch; the Naval Historical Branch; and others, 1966-67, including statistical analysis of efficacy of RAF and information and statistics from Air History Branch regarding U-Boat destruction, 1955. Correspondence with Capt B H Liddell Hart, 1965; with Rear Admiral Samuel Morison, USNR, 1968; with Professor Arthur Marder, 1966. Articles by Slessor relating to the Defence Review on Naval Airpower, including: 'An Integral part of the Fleet', 1964; 'The Capital Ship Complex', 1965; 'Air Power - Seabourne or Shore-based', 1965; 'Naval Air Power - Is it Worth It?', 1965; 'The Story of Jutland: Some reflections on Vol. 3 of "From the Dreadnought to Scapa Flow" - Arthur J Marder', 1966; 'Air Power and the Defence Review', 1966; 'Air Power East of Suez', 1966; 'The Purchase of the F111', 1966; 'Meeting Today's Defence Needs: Virtues of Shore-Based Planes', letter to The Times , 1968; and 'The Air League's Memorandum on Defence - January 1967', 1967. Also articles by others including: 'The case for the Aircraft Carrier' by Fletcher Pratt, and response 'The Case for Land-Based Air Power' by Francis V Drake, The Reader's Digest , 1949; German, Italian and Japanese U-Boat Casualties during the War: Particulars of Destruction , (HMSO, 1946); A memorandum on Defence , The Air League, 1967; and 'Merchant Aircraft Carriers' by Kenneth Poolman, Air Pictorial , Oct 1968.