With this information, you can calculate the quantity of feet per second 991 knots is equal to.
¿What is the inverse calculation between 1 foot per second and 991 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00059786458 times 991 knots.
Which is the same to say that 991 knots is 1672.6196 feet per second.
Nine hundred ninety-one knots equals to one thousand six hundred seventy-two feet per second. *Approximation
A foot per second is zero times nine hundred ninety-one knots. *Approximation
