Volume 35 contains 550 pages of Aviation Flight Computer slide rule instructions that were not included in Military & Aerospace Volume 18. Except for a few companies, most WWII-era companies no longer make flight computers after the 1970s. The instruction manuals were never sold separately from the slide rules, and many were lost over time. The project is to provide a composite hard copy book and digital reprints of instructions from the most popular manufacturer's slide rule models as a reference for pilots, collectors, educators, and students. Flight Computer Instructions in Volume 35 Book 1 – AN 01-1-40 - Handbook of Weight and Balance Data. Instructions for Using the Load Adjuster (Slide Rule). May 15, 1943. 45 pages. Book 2 – Aerodyne Inc. C1 Flight Computer. Circular slide rule with Wind slide. 1972. 17 pages. Book 3 – Aero Products Research Inc. Time/Speed/Distance Computer instruction manual. Circular Slide rule. 1969. 30 pages. Book 4 – AF Manual 51-12 Dead Reckoning Computers Department of the Air Force. May 15, 1959. 80 pages. Book 5 – Air Force Type MB-2A Computer Handbook for Air Navigation True Air Speed, Mach No. Wind Components, Supersonic. Part No. 205. J.B. Carroll Company. Circular Slide rule. 1956. 37 pages. Book 6 – National Aeronautics Committee for Aeronautics An Airship Slide Rule, by E.R. Weaver and S.F. Pickering. Report No. 160. 1923. 15 pages. Book 7 – Felsenthal Instruments Company – How to use your “Dial-A-Con” Mark I Computer, by Alice S. Fuchs. 1923. 47 pages. Book 8 – Grumman American – Flight Computer Manual. 1973 (made by Jeppesen Sanderson, Inc.). Circular Slide Rule. 68 pages. Book 9 – Jardur Import Company Instructions for the 10-Second Flightmaster. 1942. 27 pages. Book 10 – Jeppesen & Company BR-4 Professional CR Computer Instruction Handbook. Includes models CR-1, Cr-2, CR-3 and CR-5. 1969. 59 pages. Book 11 – Kane Aero Company MK-6B Dead Reckoning Computer. Circular slide rule with Wind slide. 1958. 32 pages. Book 12 – Kane Aero Company MK-7 Skyking Computer and MK-8 Time-Turn Computer. Circular slide rules. 1964. 24 pages. Book 13 – Sanderson Flight Computer Manual Computer and MK-8 Time-Turn Computer. Circular slide rules. 1972 (Made by Jeppesen Sanderson, Inc.). 62 pages.