Pax 205
https://www.navair.navy.mil/foia/sites/g/files/jejdrs566/files/document/%5Bfilename%5D/2021-003244%20FINAL%20VERSION%20PAX%20205%20-%20INERTIAL%20MASS%20REDUCTION%20DEVICE.pdf
https://www.thedrive.com/the-war-zone/31798/the-secretive-inventor-of-the-navys-bizarre-ufo-patents-finally-talks