Invisibility technology

1. xplanes2.html: The 15 U.S. Aerospace Crafts Built with Extraterrestrial Technology by Richard Boylan, Ph.D. [2024 update (c)] At this time, Dr. Boylan is aware of the existence of 15 kinds of exotic-technology human-constructed antigravity aerospace; ... then uses antigravity technology for reducing the vehicle's mass and for field propulsion at higher ... optical as well as radar invisibility! (8). Recently Dr. Boylan also heard from an Army engineer, f ...; https://www.drboylan.com/ xplanes2.html 44k 19/Feb/2024