Help with formula

Hello guys.
I am trying to create a realistic plane kit.
image
image
What I am trying to do is that ^
So, more speed = more lift.
I am using a Vector Force.
and I need to apply force according to the plane mass, and the velocity.

Let’s say the rotation speed (V1 or take off) of this plane:
image
Is like, 200 SPS.
Now, when it reaches 200 SPS, the lift should be created, but I need help with this formula, any help?
Mass of the plane:
437.26087320317

Weight of plane (mass * gravity) = 85790.581988048