The October rewards for the APR patrons have been released. They include:
PDF document: “A Recoverable Air Breathing Booster,” A Chrysler study from 1964 for a strap-on booster system for the Saturn Ib incorporating additional H-1 rocket engines and jet engines for recovery.
PDF Document: “XF-103 Descriptive Data,”a Lockheed collection of information on the then-current XF-103. This is from a Lockheed collection of information on competitors designs.
Large format diagram scan: the Boeing Advanced Theater Transport. A later version of the tilt-wing “Super Frog.”
And for the higher-end patrons, a CAD diagram of an early NACA-Langley design for what would become the X-15.
If you would like to access these items and support the cause of acquiring and sharing these pieces of aerospace history, please visit my Patreon page and consider contributing.