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Stall Speed

Minimum speed to maintain lift.

Formula

Vs=2WρSCL,maxV_s = \sqrt{\frac{2W}{\rho S C_{L,max}}}

Variables

WWeight
\rhoAir density
SWing area
C_{L,max}Max lift coefficient

Example

Below this, the wing stalls

Did You Know?

Stall speed rises in a turn, a hidden danger that has caught many pilots banking too hard near the ground.