With this information, you can calculate the quantity of feet per second 51 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 51 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.011617329 times 51 knots.

Which is the same to say that 51 knots is 86.078303 feet per second.

Fifty-one knots equals to eighty-six feet per second. *Approximation

A foot per second is zero times fifty-one knots. *Approximation