A recent visit to a late local modeler's house led me to discover that, long before
Periscope Film, another company was creating a series of Air Force manual reprints. Flying Enterprises of Dallas, Texas reprinted at least three flight manuals:
They come in a cover/folder with a reproduction of the title page on the front, picture(s) of the aircraft on the back and a little 2 1/4" wide flap that overlaps the actual manual. The manual itself has the same three non-modern-standard width holes punched in it as the original manuals:
I haven't had the opportunity to do any research yet, but thanks to the aforementioned collection I am aware of three of them:
HB-1: T.O. 01-25CF-1 - Pilot's Flight Operating Instructions: P-40D and P-40E AirplanesHB-2: N/A - Handbook of Operation and Flight Instructions for the Models YFM-1 and YFM-1B Multi-Place Fighter Airplanes and Model YFM-1A Multi-Place Fighter AirplaneHB-3: T.O. 1F-51D-1 - Flight Handbook: USAF Series F-51D AircraftThe P-51H manual, being a bit thicker than the other two, has room on the spine for a title, and luckily, a date of reissue: January 1966. Both HB-1 and HB-3 have the same "Flying Enterprises" label on the first page of the manual itself, but, for some reason, HB-2 does not. HB-2 is particularly intriguing, as while the other two represent aircraft for which there were thousands of examples built, there were only around a dozen YFM-1s. Therefore, it would stand to reason that it would be especially difficult to get ones hands' on one.
As an aside, it just so happens that the three manuals chosen manage to illustrate the prewar, World War II and postwar title page formats as well as the change of technical order number format mentioned in a
post in the technical order organization thread.
These, of course, aren't digital, but they were, at the time, fulfilling the same role - that is to say, civilians creating and distributing copies of military manuals - as the modern digital resellers.