Multi-Engine

Vmc Explorer

Minimum control speed (Vmc) isn't a single number — it slides with how the airplane is loaded and flown. Drag the controls and watch the red radial move, and watch it converge on the stall.

Rear view

Bank angle2.0°Toward the operating engine · ~3 kt of Vmc per degreeWeight3400 lbHeavier → more horizontal lift from bank → lower VmcCenter of gravityMidAft CG → shorter rudder arm → higher VmcDensity altitude0 ftNormally-aspirated: less power up high → lower Vmc

Failed propFeather → lower Vmc and better climb

Landing gearDown lowers Vmc — but the drag kills climb

FlapsDown lowers Vmc too — and costs climb

Vmc

KIAS

Stall (Vs)

KIAS

Margin

Comfortable

S.E. climb

ft/min

What moved Vmc

Base (level, fwd CG, sea level, feathered)78
Bank0
Weight0
CG0
Density altitude0
Propeller0
Landing gear0
Flaps0

Comfortable margin

Vmc sits well below the stall. As the airplane slows toward Vmc, full rudder plus the banked lift vector can still balance the yaw from the good engine, so directional control is lost before — but only just before — the wing stalls.