subsonically


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subsonically

(ˌsʌbˈsɒnɪkəlɪ)
adv
(General Physics) at a velocity below that of sound
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References in periodicals archive ?
Vice said GE's new Affinity engine will power the 11-seat aircraft at Mach 1.4 over the ocean and subsonically over land.
Overall, excepting bullets used in guns and shooting situations where most of the trajectory occurs while the bullet is traveling subsonically, pointed bullets have an overall edge for most applications.
The 12-passenger AS2 has a maximum operating speed of Mach 1.5 over water and land masses where supersonic speed is permitted, and up to Mach 0.99 where required by regulation to fly subsonically over land.