Knot Pitot Tube Threshold 
Air Facts
MAY 5, 2025
The general prognosis indicated no icing in the clouds, no turbulence and a quartering headwind from the west resulting in a mere five knots of headwind component. Instead of a gentle breeze out of the west, we had over 20 knots of headwind blowing out of the south. We were about 1/2 mile from the threshold.
AeroSavvy
OCTOBER 26, 2020
Ram air from a pitot tube and static (undisturbed) outside air from a static port, usually a hole on the side of the fuselage. Airspeed indicators need air from a pitot tube and static air from a static port Small general aviation aircraft have airspeed indicators with air hoses connected directly to the pitot and static sources.
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