The "Aerospace Projects Review Monthly Historical Documents Program" is a subscription service that, for a mere pittance, provides a monthly haul of high-rez scans of documents and large format diagrams/artwork of aerospace historical interest, as well as a CAD diagram created by yours truly. Formerly known as the APR Patreon, it has spread out a bit to a simple PayPal-subscription system. The APR Patreon is still running, of course, so there are two ways to sign up, both described here:
http://www.aerospaceprojectsreview.com/monthly.htm
This has been running since 2014, with multiple documents/diagrams issued every month. Every single monthly set is available for purchase by subscribers. Subscriptions run from as little as $1.50 to $10 per month, with an increasing set of perks. The first set, from 2014-07, included:
Document: "Manned Orbiting Station and Alternatives, Vol. IV," dated 1963. This provides a number of diagrams of MOL and Dyna Soar-based small space stations, as well as being the earliest known publication of the Gemini "interceptor."
Diagram: "TAC BJ-58:" LARGE format diagram of the two-engined BJ-58 supersonic bomber
CAD diagram: two included... Titan III/X-20/MOL and ISINGLASS.
http://www.aerospaceprojectsreview.com/monthly.htm
This has been running since 2014, with multiple documents/diagrams issued every month. Every single monthly set is available for purchase by subscribers. Subscriptions run from as little as $1.50 to $10 per month, with an increasing set of perks. The first set, from 2014-07, included:
Document: "Manned Orbiting Station and Alternatives, Vol. IV," dated 1963. This provides a number of diagrams of MOL and Dyna Soar-based small space stations, as well as being the earliest known publication of the Gemini "interceptor."
Diagram: "TAC BJ-58:" LARGE format diagram of the two-engined BJ-58 supersonic bomber
CAD diagram: two included... Titan III/X-20/MOL and ISINGLASS.