Rewards for July, 2025 have been released. These include:
Document: “GETOL Technical Merits & Status,” General Dynamics/Convair, AD-VTOL-41, February, 1963. Report on Ground Effect Take off and Landing studies.
Document: “Flying Cranes,” Sikorsky, 1959. Brochure describing and illustrating heavy lift helicopters built and projected.
Document: “Nova and Post-Nova Propulsion Summary,” Rocketdyne presentation, 1962, describing extremely powerful liquid rocket systems for vehicles bigger than Saturn V.
Diagram: SR-71 pilots instrument panels
CAD Diagram: Douglas DC-8-1004, 1945 design for pusher-prop small airliner
Subscribers/Patrons for the APR Monthly Historical Documents Program not only receive a monthly collection of aerospace goodies such as these, but can also pick up back issues all the way to 2014.
