http://www.airliners.net/open.file/0526311/L/
The ones above and below the red circle, They're usually found in the nose section on many aircrafts.
2007-12-14 12:10:27 · 7 answers · asked by Constellation 1 in Cars & Transportation ➔ Aircraft
These are the the pitot/static tubes. One (the pitot tube) is open to the atmosphere; the other (the static tube) is sealed. Together, they measure the forward pressure of the air as the aircraft is flying. This is used to calculate airspeed.
2007-12-14 12:19:12 · answer #1 · answered by Michael B 6 · 1⤊ 6⤋
The first answer was probably the closest, so far, but still not right. Both are pitot/static tubes. The two in the picture are most likely to be the first officer's primary one, and then a standby, but it is possible that the other one is the captains, I'm not all that familiar with boeings.
A pitot/static tube is different from a pitot tube that you find on small aircraft. The front of the probe is open to ram air, and then on the side of the tube, there are small holes that sense the static air pressure. The difference between these two pressures is how airspeed is measured. On smaller aircraft, the static ports are separate from the pitot tube. The airliners do it this way because it simplifies the anti-icing in that you only have to heat one thing.
I'm willing to bet if you look at a picture of the captains side of the same aircraft, there are a couple of these over there too.
2007-12-14 16:35:17 · answer #2 · answered by Flug 3 · 1⤊ 0⤋
They sense forward airspeed, and ambient air pressure.
They are pitot/static masts, or pitot/static heads. On a long probe they would be pitot booms.
Pitot and the static tubes are contained within and lead back to airspeed indicators, altimeters, and vertical speed indicators.
2007-12-14 23:53:36 · answer #3 · answered by Mark 6 · 0⤊ 0⤋
Both of the probes you are asking about in this photo are pitot tubes. They are part of the pitot/static system which is used to determine airspeed. Oh, BTW... The little airfoil shaped gizmo inside the red circle is the angle-of-attack sensor. it senses the airflow past the fuselage of the aircraft and helps determine the angle of attack of the wings.
2007-12-14 12:38:30 · answer #4 · answered by JetDoc 7 · 7⤊ 1⤋
pitot tubes
one inlet is ram air static pressure plus the ram pressure, while the other inlet is most liekly perpendicular and provides static pressure only. by deducting these two values you get the ram pressure which is used to calculate the air speed.
both inlets are placed at the same boom, this means two booms - four inlets, or two inlets and two rings of static pressure inlets
2007-12-14 20:16:45 · answer #5 · answered by Anonymous · 0⤊ 1⤋
They are both pitot tubes. One for the captain's instruments and the other one for the first officer.
2007-12-14 12:38:12 · answer #6 · answered by huckleberry58 4 · 1⤊ 2⤋
both pitot tubes or airspeed tubes. Measure your airspeed.
2007-12-15 02:49:44 · answer #7 · answered by Airmech 5 · 0⤊ 0⤋