TR-3B Black Manta: Sightings, Specifications, and Speculation of a Secret ISR Aircraft

To the point

Decades of sightings describe a large black triangular craft called TR-3B Black Manta that is said to be a secret U.S. reconnaissance plane able to hover quietly, switch between steady hovering and rapid pulsed movements, and use plasma and anti‑gravity effects to aid movement and dodge radar, all with surveillance and imaging sensors, with NIDS estimating it to be about 600 feet long, 300 feet wide, and 40 feet high, though its existence remains speculative.