A pressure-based system for measuring airspeed and altitude.
Questions tagged [pitot-static]
89 questions
22
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5 answers
Why turn off pitot tube heating?
I'm merely an amateur simulator (X-Plane) pilot. On a flight yesterday the airspeed indicator stopped working. After the initial panic I remembered reading something about pitot tubes freezing, found the pitot heating switch, and turned it on. The…
Vidar S. Ramdal
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How is the pitot system drained?
Since pitot static systems are open the outside, how does the system remain clear of water or other contaminants?
fooot
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Why are static ports external on a non pressurized aircraft?
Seems like the intruments in a non pressurized aircraft have access to the static pressure right where they are. It seems like external ports would be subject to more error being exposed, and lines that can be obstructed.
What benefit is having the…
Greg Taylor
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Is it possible to detect a pitot static failure (blockage) of air data probe during flight and alert the pilot?
Loss of static and pitot tubes affect the display of airspeed, altitude, vertical speed information. Loss of this information can be catastrophic for flight. How are the pilots communicated about the failure of these ports (ex: when they get…
user2927392
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What is the reason for the fence aft of the static ports on some airplanes and helicopters?
Airbus AS350 helicopters and Bell 206 helicopters have a 1/2" long fence behind the static port. CRJ 200/700 have a .060" step on the aft side of the static port. What would be the reason for these?
Clark
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How is the static pressure in the pitot static system reconciled when there are two outside static pressure ports?
On airplanes where there are two static pressure sources (ports) on each side of the fuselage what is the result of the static pressure as compared to aircraft with a single port. (I'm not talking about the alternate static port which is usually…
Devil07
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What temperature are Pitot Tubes heated to?
What temperature is a pitot tube usually heated to prevent ice?
And are pitot tubes always heated to the same temperature, is there any difference between aircraft (say, a C172 and an A321)?
Noah Krasser
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Pressure scanner for multi-hole Pitot-static probe going to 100km altitude and M3.5
I am wondering if anyone has experience in looking for multi-channel differential pressure scanners for use with pitot static probes in aerospace? What companies/manufacturers/product familes would you recommend, as I am struggling to find any that…
AngusE
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How can static pressure be obtained over a range of airspeeds?
Multiple instruments rely on static air pressure, i.e. pressure unaffected by airspeed.
To my understanding, no such air should exist around an aircraft. Air in motion exhibits a lower pressure measured laterally, and a higher pressure measured…
Zsolt Szilagyi
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Static port and Bernoulli
Static ports open directly to the outside of fuselage. When aircraft is flying, there will be air flowing outside of static port. How does this not cause a vacuum effect inside the static port. Due to the Bernoulli Effect, as the speed of air…
utku
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How does static port measures the static pressure?
I have always thought that there is a probe or sensor kind of thing inside the static port so that it "measures" the static pressure and compare to other pressure sources for airspeed, altitude, and VSI reading.
But my other pilot friend recently…
alisonCY
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What would be the effects of installing pitot tubes on the engine covers?
What are the effects on airspeed measurements, if the pitot tubes were installed right on the engine covers of an aircraft instead of being on the nose. Would the reading be false? If so, would the reading be underestimated or overestimated and…
securitydude5
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Why does the Lockheed D-21B have three air data probes?
The Lockheed D-21 has three air data booms / pitot intake tubes: one on the nose and one on each wing. (Images here and here.)
All three appear to be pitot-static tubes. Anyone know what purpose having three of these served?
Todd Stellanova
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What happens if the pitot tube freezes?
Can somebody explain this a bit for me?
I.e. as I understand:
If the Pitot tube freezes/ becomes blocked, the ASI would no longer have a change in the pressure (dynamic + static) from the pitot tube, but would have only change in static pressure…
Ben-FI
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Why do larger aircraft need two or more static ports?
Some background information:
"Static pressure is the measurement of the ambient barometric pressure at the aircraft’s CURRENT location AND CURRENT Altitude.
The Static Port is located in a position on the aircraft that will not be affected by air…
SillySquishy
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