With this information, you can calculate the quantity of feet per minute 400 knots is equal to.
¿What is the inverse calculation between 1 foot per minute and 400 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per minute is 2.4686825e-05 times 400 knots.
Which is the same to say that 400 knots is 40507.437 feet per minute.
Four hundred knots equals to forty thousand five hundred seven feet per minute. *Approximation
A foot per minute is two times four hundred knots. *Approximation