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The Classic Boeing Airspeed Indicator

AeroSavvy

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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Trial by Ice

Air Facts

I didnt know but it might have been due to the angle of attack of the pitot tube that would not let the full force of the relative wind enter the tube. We were about 1/2 mile from the threshold. It would not be easy getting perfectly aligned with the runway threshold by looking through the tiny hole in the ice.

VOR 52