Office of Aviation Procurement, IIMC 04 October 1941 Gentlemen, It is our intent to significantly increase our aircraft production capacity in as rapid a manner as possible. We intend to do this by creating additional production facilities, small facilities, dispersed throughout the Home islands to prevent disruption of production due to natural disasters or enemy air attack. Initially, these facilities would be assembly plants where engines or airframes are assembled from parts supplied by our larger facilities. As skills increase and additional tooling becomes available these facilities would begin making component parts, assemblies, and even complete engines, airframes and/or aircraft. We have determines that we will standardize to the greatest extent possible, no longer will there be Army and Navy variants of the same engine. We will continue research along all avenues seeking to explore all possibilities for newer more capable aircraft, but when we achieve a successful type it will be standardized to the greatest extent possible and an Army and Navy version produced. We are currently looking at ceasing production of the KI-43 in favor of the A6M series. We are developing a land based variant of the A6M2 without carrier required equipment, and increased pilot protection, self sealing tanks, and incorporating the Fowler flaps from the KI-43 series to increase dogfighting capability. Land based Imperial Navy squadrons will also use this version where radius of action is not a critical factor. We will also standardize on the weapons the aircraft carry, using the IJA HO-103 12.7mm and HO-5 20mm variants as they appear to be the most capable. Standardization should significantly reduce our logistical requirements and increase production, simplify spare parts supply to forward combat areas and simplify training for aviation maintenance personnel and armorers. Other aircraft we are looking at standardizing are the KI-44 for Army/Navy interceptor, L2D2 Army/Navy Transport, among others. Major aircraft and engine types currently in production (unless otherwise noted); the number in parenthesis are is the quantity of each type stockpiled. Engines are identified by the main engine line designation, not the designation of the individual model or seperate Army/Navy type. Hitachi Amakaze (121)-convert to HA-35 production Kawasaki HA-9 (85)-No current production. Factory researching HA-60. Kawasaki HA-60-cease development and switch over to radial engines. Kayaba Argus (1)-increase production Mitsubishi HA-31 (243)-producing 45 per month, we intend to continue with F1M2 Pete and KI-46 Dinah production so retain capacity. Production of KI-51 Sonia (31) will be switched to joint Army Navy light/dive bomber type probably D3A2. Mitsubishi HA-32 (41)-producing 60 per month. We intend to keep the G4M1 (1) and KI-21 Sally* (21) in service so recomment expansion of engine production this type to allow for airframe increases. *Current KI-21 production is of model IIA, and improved version is being researched. Mitsubishi HA-33 (116)-producing 71 per month. This engine is used in the D3A1 Val which we need to keep in production until the D4Y series becomes operational (see note 1). We are also looking at producing a version of the D3A for Army use to replace the KI-30,32 and 51. The Army version would include additional protection for the engine and crew in order to make it more capable in the ground attack role, and deletion of equipment necessary for use as a carrier plane. The engine is also used in the E13A1 Jake, G3M2 Nell, H6K4 Mavis and L2D2 Tabby (version of US DC-3/C-47), all of which we intend to keep in production for the present. We need to significantly increase production of this engine. HA-42 and HA-43-We currently have two facilities in R&D work on the HA-42 and 10 on the HA-43. It is our opinion that we maintain this level of R&D until such a time as we have sufficient production of our operational engine types. Then to increase R&D for these more advanced engines. Nakajima HA-34 (1)-This engine is currently only used in the KI-49 IA Helen. We are not satisfied with the KI-49's performance and capabilities, and are recommending that production of this type be limited. We will continue building in limited quantities for operational use in limited threat areas while we attempt to rectify some of the aircrafts shortcomings. Increase engine production only enough to support current airframe production numbers of 14 aircraft per month or 30 engines (2 x 14=28 plus 2 spares). Nakajima HA-35 (167)-This engine is used in the A6M series, B5N2 (restart production on an improved model pending acceptance of the B6N (note 2), C5M2 Babs, KI-43 series, KI-48 Lily (we have a modified ground attack version deployed on a limited basis in China; preliminary data indicates it is quite effective, if we standardize on the modified version we would be well served to increase production), and MC-56 Thalia (cease production and focus on joint Army/Navy versions of L2D2) Nakajima HA-44 and 45-In development 10 facilities engaged in HA-44 R&D, 30 for the HA-45. Continue R&D at current levels. Nakajima HA-5 (102)-Used in the KI-21 Sally (no current production), MC-21 (swapping to L2D2 series), KI-30 (No current production. Being replaced by Army version of D3A), and MC-57-I Topsy (limited production of 6 aircraft per month). We recommend switching HA-5 production over to a more needed engine type. Nakajima Hikari (134)-Currently no production aircraft use this engine and there is no engine production. This engine is used a number of our obsolecent aircraft types used for training. Nakajima Kotobuki (253)-Used in A5M4 Claude, E8N2 Dave (being replaced by F1M and E13A) and KI-27B Nate. Current production 25 per month. The A5M4 (726) and E8N2 (652) are no longer in production. We are still producing 45 KI-27B's in Harbin, by Manshukoku Hikoki Seizo KK, each month and have a stockpile of 2851 not assigned to squadrons. We intend to use the KI-27 in the role of training aircraft for fighter squadrons, but feel we have sufficient airframes and would like to swap production to either the KI-44 or A6M3 Army version of the Zero. Note 1: We are in favor of dropping all production and R&D of liquid cooled versions of the DB-601 in favor of radial engines. Aircraft now in development such as the KI-61 and D4Y should be adapted for radial engines of the appropiate horsepower range. Note 2: We are currently experiencing problems with the Nakajima 1870hp range Mamori engine. We will insist, over the objections of Engineer Kenichi Matsumara that the Mitsubishi Kasei Mk4T engine, be utilized until the issues with the Mamori are resolved. EDIT: I failed to mention the early Hitachi type, HA-13/Army Type 98 engines. We are currently producing 40 per month, have 2014 stockpiled and they are used in the KI-9 Spruce (2490) one of our trainers, the KI-36 (2624) and 55 Ida (1000), and KI-59 (36) Theresa transport, with only the KI-36 still being produced at a rate of 32 per month. I'd like to switch our Hitachi factories over to HA-35 production. We think the best replacement for a spotting/liason aircraft to replace the KI-36/55 would be the KI-76 currently undergoing operational testing. It could also be used by naval forces.