calculate stall speed with increased bank angle?

[Founder]

Does anyone have a smart way to calculate the increased stall speed with an increased bank angle?

Kind Regards
Tim

[chornedsnorkack]

Originally Posted by Founder

Does anyone have a smart way to calculate the increased stall speed with an increased bank angle?

Kind Regards
Tim

The stall speed should be proportional to the square root of the secant of the bank angle (secant being the inverse of cosine).

[Tarq57]

Also related to G force (of course)
So at 60 degrees, cos.60 = .5
Inverse is 2. (Also 2G) Root 2= (approx) 1.4> stall speed increases 40%.
75 degrees, cos .25, inverse 4 (Also 4g) root = 2. Stall speed doubles. Which coincidentally is why Va on most light aircraft is usually about double the stall speed. The aircraft stalls before it is able to exceed the G limit of between 3.8 and 4.4, depending on category.