Mach is an average of 768 miles per hour.
85% means 85/100
= 0.85
multiply this times 768 mph
0.85 * 768 mph
= 652.8 miles per hour
Mach 85 is 64,702.6 mph
85 percent
The A-380 cruises around Mach .85 or around 550mph. Most airliners have roughly the same cruise speed.
Mach 0.8-1.0
Mach 1.7 is equal to about 1294 mph.
645.38104_MPH_">645.38104 MPH-is 0.87 Mach -
Mach 6 is about 4,449.3 mph
the SR 71 goes really fast it goes Mach 7 NOT Mach 3.
Mach 3.3 is about 2,512 mph depending on altitude.
889 mach is approximately 683,781.4 mph.
mach 2.03
85 percent = 0.85