Hydroplaning Speed Calculator
Calculate dynamic, viscous, and reverted rubber hydroplaning speeds from tire pressure. Critical for wet runway operations.
Inputs
PSI
C172: 42 PSI, C182: 55 PSI, B737: 200 PSI, B777: 220 PSI
Results
Dynamic Hydroplaning Speed
66.7 kt
Risk Assessment
Low
Spin-Down Speed46.7 kt
Viscous Hydroplaning Speed57.1 kt
Dynamic Hydroplaning Speed
66.7 kt
Risk Assessment
Low
How to Use This Calculator
- Enter your main tire pressure from the POH or tire placard.
- Optionally enter your expected ground speed for risk assessment.
- If your speed exceeds the dynamic threshold on a wet runway, exercise extreme caution.
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