5 Crossword-Questions containing the word SUBSONIC
Below Mach 1 less than that of sound in a designated medium moving at a speed less than that of sound Not so fast! Slower than Mach 1 view all5 Crossword-Questions containing the word SUBSONIC
Below Mach 1 less than that of sound in a designated medium moving at a speed less than that of sound Not so fast! Slower than Mach 1 view all