SPEED
One nautical knot = 6076.10 feet per hour
=1.158
miles per hour or
=101.268
feet per minute
=1.6878
feet per second
On mile per hour (mph) = 88 feet per minute
=
1.4666 feet per second
Speed of light in a
Vacuum =186,282.3959 miles per
second
The
speed of sound is 761 mph at a standard temperature and pressure (STP, about 68
degrees and sea level), but only 574 mph at 70 degrees below zero
Fahrenheit. The speed of sound is then
1116 feet per second. Mach is the ratio of true air speed to the speed of sound; therefore,
Mach 1 equals the speed of sound.
