Stall Speed at Bank Angle
Published 1G stall speed + bank angle → accelerated stall, load factor, turn radius, and rate of turn. The math behind steep turns, lazy eights, chandelles, and ACS bank limits.
Inputs
From the POH — typically V_S0 (landing config) or V_S1 (clean).
Slide to set the bank. 30° = standard turn · 45° = steep · 60° = ACS commercial steep turn.
Add a TAS to also compute turn radius and rate of turn.
Verdict
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Enter your published 1G stall speed (V_s) and a bank angle
Bank attitude
About this calculator
Pure FAA Airplane Flying Handbook math. Load factor in a coordinated level turn is n = 1 / cos(bank). Accelerated stall is V_acc = V_s × √n. Turn radius is V² / (g · tan(bank)) with V in ft/s and g = 32.174 ft/s². Rate of turn uses the AFH approximation ROT = 1091 · tan(bank) / V_kt.
These numbers assume coordinated, level flight with no climb or descent component. Climbing turns load the wing more; descending turns less. 14 CFR §91.307(c) requires approved parachutes for anyone aboard (other than crew) when intentional bank exceeds 60°.
Trim
Teaching steep turns and lazy eights? Trim tracks where each student is in the commercial maneuvers syllabus.
Flight training management for independent CFIs.