2026-10-05 NASA Technical Reports Server (NTRS)
Site: https://ntrs.nasa.gov . Bears on Claim 3 (Holt, Field Resonance Propulsion; arbiter: "What did Holt's later papers add?"). Priority 1 (the author's own later work).
Searched
Alan C. Holt propulsion (8 hits; 5 by Holt, Alan C.).
Found (abstracts read on the results page) [web: https://ntrs.nasa.gov/search?q=Alan%20C.%20Holt%20propulsion]
- Holt, "Space station support of manned Mars missions", May 1986, MSFC Manned Mars Mission working-group papers, NTRS 19870008374 (JSC). Conventional mission support; no field propulsion.
- Holt, "Space Station Freedom - Accommodation for technology R&D", AIAA Paper 89-2858, July 1989, NTRS 19890059759 (Space Station Freedom Program Office, Reston). Candidate payloads "include magnetic plasma thruster systems and a hypothetical advanced electromagnetic propulsion system utilizing high-temperature superconductivity materials"; such technologies "can be tested on the Space Station" attached to the truss.
- Holt, "Spaceport operations for deep space missions", April 1990, NASA Lewis "Vision-21: Space Travel for the Next Millennium", NTRS 19910012853. An interstellar design concept; calls for "energetic, breakthrough level propulsion research" to "be initiated now".
- Holt, "Space Station technology testbed: 2010 deep space transport", Dec 1993, NASA Lewis "Vision 21", NTRS 19940022865 (NASA HQ). Includes "microgravity assisted, restructuring of micro-engineered materials" and in-space "tuning" of materials.
- Holt, "Space Test and Operations Port for Exploration Missions", Space 2004 conference abstract, NTRS 20050217407 (JSC); mentions "an advanced space propulsion testbed". How it bears: Holt's record after 1979 continues inside NASA through 2004, with repeated proposals to test advanced EM / "breakthrough" propulsion on the space station. None of the abstracts defines a "space-time harmonic" or gives equations; full texts (public, downloadable) were not read. The 1980 AIAA paper, the 1982 Science Digest article and the 1999 AIAA paper with Davis and Puthoff (arbiter.md) did not appear in this NTRS search.