1 Airport

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ft MSL
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inHg
°C
°T
kts

Runways

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ft

PA ≈ elevation + (29.92 − altimeter inHg) × 1,000

ft

DA ≈ PA + 120 × (temperature °C − ISA °C)

ISA °C = 15 − 0.0019812 × PA

Runway winds

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RunwayHeadings °TSurface wind (kts)Crosswind (kts)From (by direction)
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2 Aircraft

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lb
US gal

3 Aircraft performance

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ft
ft
ft/min
ft
kts IAS
kts IAS

Use aircraft POH performance values for the current weight and conditions.

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