Altimeter Pitot Tube Runway 
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.
Northstar VFR
OCTOBER 27, 2024
Mostly affects runways found next to bodies of water. Above 18,000’ MSL all aircraft set their altimeters to the standard pressure of 29.92. You encounter icing, and your pitot tube completely ices over, but your static port remains open. Typically occurs along the coast, as sea breezes blow moist air over land.
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