A knot is 1.15 miles per hour.
it says that it goes 24 knots, but what is a knot?
This is:
Also THIS!:
But seriously, Hippy has the correct information . . .
The knot is a unit of speed equal to one nautical mile (1.852 km) per hour, approximately 1.15078 mph.
And more information you may find interesting:
1) A nautical mile measures distance and a knot measures speed.and 2) engineering.mit.edu/engage/ask-an-engineer/why-is-speed-at-s