Learn more physics!
How fast do planes go?
- Joel Garcia (age 13)
Kranz Intermediate, El Monte, CA, United States of America
According to this site
the record fastest speed for an airplane is 2,193 mph (according to the
"Guinness Book of World Records", 1989. New York: Bantam, 1989: 204.)
or 4,520 mph (according to the "World Book Encyclopedia", New York:
World Book, 1996: 208.). These are of course not normal passenger
planes. Every type of plane flies at a different speed. A commercial
Boeing 747 has a cruising speed of about 550-600 mph.
(republished on 07/30/06)
Follow-up on this answer.