“The onboard sonar determined the unidentified submerged object (USO) was traveling through the water faster than the speed of sound, he has” claimed (spelling corrected).
I’d moar (spelling intentional) information.
The speed of sound IN AIR is about 1,192 km/h; 740 mph; 643 kn at STP (Standard Temp/Pressure).
The speed of sound IN Seawater is about 1,531 km/sec; 5,000 fps; 3409 mph at STP (Standard Temp/Pressure).
Which “Speed of sound” was it breaking?
How did “SONAR” determine how fast it was going using sound to detect, track, and perform target motion analysis on the object?
I wonder what was “said to” and “heard by” the reporter who wrote that.
A super cavitating object in seawater (how to get things to go fast underwater) is within an air bubble so its actual speed is somewhere around the speed of sound in air, depending on pressure.
The bubble is created by diverting a fraction of the exhaust through the tip of the object. Russia has some torpedo type weapons that do this and is probably what did in the Kursk (one lighting off inside). It’s aimed fire though, not currently maneuverable IIRC...
The best idea I’ve heard with respect to those is to put them in concrete submarines that sit on the bottom and fire at passing targets.