Travelling at less than Mach 1

Usage examples of subsonic.

He sat in a comfortable chair watching sound spectrograms scroll across one computer monitor, while on another a program picked out the digital sequence in the subsonic signal and broke it into text.

To optimize maneuverability, a computer automatically adjusted the flaps and slats when the machine was maneuvering in the subsonic and transonic speed ranges.

Most of the basic tones were subsonic, sensed in the bones rather than the eardrums, but there were overtones and harmonics aplenty, a cacophony that somehow managed to seem both too bass and too shrill for comfort.

Floyt could almost hear its eerie tonalities and deep, nearly subsonic hum.

Five An-995 subsonic heavylift cargo planes were parked on it, fat cylindrical bodies with a rear wing and canard configuration, all of them in blue and white Air Russia colours.

She grabbed Carrik by the arm just as the subsonic noise touched him and as Esmond Valdi lifted protecting hands to his ears.

A steady rush of air, the metal beneath his back thrumming gently, producing a nearly subsonic bass note and putting his teeth on edge.

The device could be adjusted far more rapidly than a subsonic projector and would be unlikely to set off a town's warning system, which, I presume, would be directed to keep an eye out for much more conventional weaponry.

With its integral sound and flash suppressor, and its subsonic ammunition, the weapon was virtually undetectable from a concealed position, making no sound that could be identified as a gun shot above normal street and traffic noise.

A pulsejet develops thrust at rest, and could boost a vehicle to high subsonic velocity where ramjets become efficient.

The baffles need changing after every five hundred rounds or so, there's no slide lock, but I had the recoil spring altered so it functions perfectly with subsonic ammunition.

Drag had slowed it to subsonic velocity immediately after launch, but its solid fuel motor slammed it past the sound barrier as it homed on die Aegis cruiser's radar.

Hal's flight experience was limited to one subsonic transocean flight to Australia and five short helicopter trips during the last phase of their training.

The Condor was a light, subsonic craft with a single turbofan engine.

The subsonic AGM-86C cruise missile had a turbojet engine that flew the missile at six miles per minute for 500 miles.