"41 knots" means 41 nautical miles per hour.
In terms of a few other more familiar units:
-- 75.9 kilometers per hour
-- 69.2 feet per second
-- 47.18 miles per hour
40 knots is 46.031mph.
41 Knots is 47.19 miles per hour.
Fast
205 knots = 235.91 mph
210 knots = 388.92 km/h
482 Knots is about 554.78 miles per hour.
41 Knots is 47.19 miles per hour.
34.75 knots
About 9.6 knots.
Fast
32 knots =34.4
Some fast ferries around the world do over 30 knots.
35 knots is 40.2773 mph
441 knots = 507.5 mph
55 knots is 101.86km/h
382 knots = 439.6 mph
119 knots equates to 136.943 mph
205 knots = 235.91 mph