Claim · G-073

David Grusch: Argues that the reverse engineering of recovered craft contributed to the development of frequency-selective surfaces in U.S. aerospace and links to it the research on magnetohydrodynamic propulsion conducted since the 1940s.

David Grusch · Sep 30, 2026 · The Joe Rogan Experience podcast, episode No. 2560 (Podcast)

Hearsay Legacy program and recoveries

Against or denials

The AARO historical report, Vol. 1 (2024) found no verifiable evidence of reverse engineering of extraterrestrial technology.

Sources

1. The Joe Rogan Experience No. 2560, episode with David Grusch (Apple Podcasts, September 30, 2026) (video/audio)
2. AARO, Report on the Historical Record of U.S. Government Involvement with UAP, vol. 1 (March 8, 2024), copy on The Black Vault (primary source)
3. Shortform, commercial (partial) summary of episode No. 2560 of The Joe Rogan Experience (other)

On this site

People 1

• David Grusch

Claims 1

• David Grusch: Claims that he was informed, in the course of his official duties, of a decades-long program to retrieve… Disputed

Where the claims come from 1

• The reverse engineering of recovered craft has contributed to the development of U.S. aerospace and military…

Open in the interactive archive The whole section: Claims

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