Report by [Lord Justice Sir] John Singleton for WSC marked "Confidential" on means of estimating the strength of the German Air Force and comparing it with the RAF. [Copy].

Appendix "A" [to CHAR 20/258A/125-131] marked "Secret" setting out "identified" and "estimated first line establishment of the German Air Force", 1939.

Appendix "B" [to CHAR 20/258A/125-131] marked "Secret" setting out figures for the German Air Force: "Long range bombers and bomber reconnaissance only", "Total Operational (All types)", "Transport aircraft", and "Trainer aircraft".

Appendix "E" [to CHAR 20/258A/125-131] setting out figures for RAF "Gains and Losses of Operational Types".

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC comparing totals of operational aircraft for the German Air Force and the RAF. [Copy; given running number 269].

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on future bombing strategy and the advantages of the heavy bomber. [Copy; given running number 272].

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC comparing numbers of ground staff and the serviceability for aircraft in Britain and the Middle East, and commenting on statistics for available aircraft. [Copy; given running number 275].

Minutes [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on German reserves of aircraft, "Razzle" and crop burning, and radar equipment at Malta. [Copies; given running numbers 276, 277 and 279].

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on the possibility of shooting down a "Queen Bee" [training aircraft] with "P.E." [photo-electric fuzes] and "U.P." [unrotated projectile weapons]. [Copy; given running number 282].

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on the progress of the RAF expansion programme. [Copy; given running number 285].

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on possible use of "razzles" [?bombs] and balloons. [Copy; given running number 287].

Minute [from 1st Lord Cherwell, earlier F A Lindemann, Prime Minister's Personal Assistant] to WSC on experiments on clearing aerodromes of fog. [copy; given running number 420].

Copy of a letter from [Lord Northcliffe, formerly Alfred Harmsworth] to WSC in which he recommends him to read an enclosure [not present] concerning the possibility that Britain should build airships instead of aeroplanes.

Copy of a letter from [Lord Northcliffe, formerly Alfred Harmsworth] to WSC referring to notes [not present] and informing him that Orville Wright agrees with his opinion on the use of dirigibles.

Copy of a letter from [Lord Northcliffe, formerly Alfred Harmsworth] to WSC enclosing a letter [not present] from [William] Heinemann which he instructs him to burn and remarking that the weather will shortly be unsuitable for the use of Zeppelins.

Copy of a letter from WSC to [Lord] Northcliffe [formerly Alfred Harmsworth] marked private in which he says that would like to convene an "Air Parliament" to discuss all aspects of aviation and asks [Northcliffe] to discuss the project with Group-Captain Scott, Air Secretary, as publicity in the newspapers will be vital to the project's success. See CHAR 28/117/156.

Letter from [Lord Northcliffe, earlier Sir Alfred Harmsworth] to WSC in which he says that he has consulted people with whom he has worked on aviation, encloses a memorandum [see CHAR 28/117/158-169] about WSC's proposals for a Cambridge aviation conference and recommends that information about civil aviation should be circulated to delegates.

Copy of a letter from WSC to [Lord] Northcliffe [earlier Alfred Harmsworth] thanking him for his memorandum on proposed subjects for his conference on aviation [see CHAR 28/117/158-169]. He informs him that [7th] Lord Londonderry [earlier Lord Castlereagh] has been appointed as Chairman to organise the conference and encloses a report [not present].

Copy of a letter from John Moore-Brabazon [later 1st Lord Brabazon of Tara, Parliamentary Private Secretary to WSC] to [Lord Northcliffe, earlier Alfred Harmsworth] asking him to reconsider his refusal of an invitation [to preside over the first day of the conference on aviation organised by WSC] as it would be disastrous for the conference.

Copy of a letter from [Lord Northcliffe, earlier Alfred Harmsworth] to John Moore-Brabazon [later 1st Lord Brabazon of Tara, Parliamentary Private Secretary to WSC] re-iterating his refusal of an invitation [to preside over the first day of the conference on aviation organised by WSC].

Telegram from WSC [Italy] to Minister of Labour [Ernest Bevin] appealing for more work to be done towards developing a jet-propelled aeroplane.

Graph of weekly output of new aircraft (British operational types): 1941-1944.

Graph of weekly output of repaired aircraft (all types): 1941-1944.

Graph of weekly output of new and repaired aircraft (operational types: British and American): 1941-1944.