the german expression when one is not getting something is that one is
standing on the (phone) line, which is why nothing is coming in. so, I

am still trying to figure out what you were computing.

putting your posts together, if you instruct engineers, some examples
with units would be helpful. (take this from someone who teaches
financial economics for a living.)

Vstall = 17.2 (WEIGHT / CLmax S) Since Lift = Weight

I believe CLmax and S are both under the division, because more S
should give me lower stall speed. Now, your recent post tells me that
CLmax = 2.2 . hmmm, this would lead me to plug in

57mph = 50 knots =?=?= 17.2 * (2700 lbs / [2.2 * 112sqft])

(I don't know the units on 17.2 or 2.2.)

so, the clock is still ticking... ;-).