No. 10 ft/s is 6 knots.

You would be moving at 20 ft/s at 12 knots.

Jim Cate wrote

Wally wrote:
Bart Senior wrote:


How many feet/second is a boat moving at 6 knots?

About 9. (1.5 feet/sec per knot.)

So, if I'm sailing 18 feet/second, I'm doing 12 knots?

Jim