Knot Pitot Tube Thrust 
Pilot Institute
JULY 11, 2025
Since it’s a ratio, it doesn’t matter if you measure speed in knots, miles per hour, or meters per second. At sea level on a standard day (15 °C or 59 °F), sound travels about 661 knots (approximately 761 mph or 1,225 km/h). Here, Mach 1 is roughly 573 knots (about 659 mph). on dry thrust alone.
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. Obviously, the winds aloft were nowhere near forecast.
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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