What's this? (see photo)?

Question

http://www.airliners.net/open.file?id=1329130&size=L&width=1024&height=732&sok=&photo_nr=1

Right below the cockpit window there are two spike things sticking out pointing forward. What are these?

Answer 1

Look like Pitot tubes to me.  Course, I've never been PIC on an ac of this model...

Answer 2

Two words

Pitot tubes

Answer 3

tHEY'RE pitot tubes. On military fighter aircraft u often see them as a spike on the end of the nose but on civilian aircraft its as shown

Answer 4

They are static collectors. While flying and the movement thru the air causes static.

Answer 5

Those are pitot static tubes which air goes through via calibrated instruments when the aircraft is moving forward and it's used to calculate true airspeed, air density, altitude, vertical airspeed and others i cant remember right now, that probe has heater coils built in to stop it freezing over and getting clogged with ice at high altitudes so it is very hot even when the aircraft has landed and on standby.

Answer 6

I dont know ...they look like some kind of handles or levers...

Answer 7

Pitot tubes.

Between them is the AOA (Angle Of Attack)

Answer 8

They are commonly referred to as pitot tubes. Their location varies depending on the aircraft model, but generally speaking they are located on the leading edge of the airframe close to the nose.

Their function is to measure outside air pressure to calculate airspeed and descent/climb rates. In helicopters pitot tubes can also measure lateral drift rates while the chopper is holding a hover. The incoming air pressure is measured against a static pressure generally through some kind of flight computer which then can make control inputs or simply present the data in a gage or screen so that the pilot can make the necessary corrections.

Answer 9

Those are pitot-static tubes, which provide air pressure differential data for the airspeed indicators, altimeters, and vertical speed indicators.  They are technically named "probes," but everybody calls them "tubes."

The little "weather vane" in between the two pitot tubes is the detector for the angle of attack indicator.

There are two completely separate pitot-static systems on most airliners.  That is why there are two pitot tubes.

Answer 10

Pitot tubes.

Answer 11

pitot tubes. used for aircraft instruments, like airspeed.

Answer 12

Pitot static probe they collect air density, the air data computer is one of the instruments that get its data from that probe. It is heated even in ground so never touch it.

Answer 13

They are not pitot tubes, not static air sources, and not static collectors.  

They are pitot probes, or pitot masts, Prandtl tubes, or pitot heads.  Some aircraft have a pitot boom.

4 static air ports are down and to the left of the probes.

Answer 14

I don't know why I'm answering this question...everyone else has the same answer. But for the sake of it, they are pitot tubes used for measuring airspeed, altitude, etc.~

Answer 15

it looks like antennas

Answer 16

Pitot tubes, as mentioned by the two answerers above me.

Just FYI, the one in between pointing backwards is an AoA sensor.

Answer 17

pitot tubes. they measure the dynamic air pressure, from which the static pressure from other probes is deducted which provides the ram pressure and airspeed calculation.