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Static Tube Straight
How can an aircraft's PITOT TUBES and STATIC PORTS get the actual wind direction while aircraft is moving?
Eg:
If the aircraft is flying in a zero winds area moving at 200 knots that means the PITOT TUBES and STATIC PORTS are getting "winds feeling" of 200 knots from straight ahead. Right?
Ok. Now add some wind in any speed and direction you want. How can the aircraft detect wind's direction and speed if it's allready getting it's "own" wind just by flying?
Do I make myself clear?
Thanks for your time.
Since the question was about wind DIRECTION and NOT speed, you 'Pilots' ( or 'Drivers - Airframe' ) need to go back to school,
Never heard of 'SIDE SLIP'??
Side slip is calculated by the use of 'differential static' ie there is one static vent on each plane (or wing to the mis informed).
As the aircraft flies, the wind direction rarely comes from directly ahead, this in itself will cause the aircraft to Yaw slightly. If for example the wind was coming slightly from the right hand side of the aircraft then the air pressure would be slightly higher on that side than on the left.
These two slight differences are fed into the instrument system to a gauge that is centre weighted i.e. it reads vertical when the wind is dead ahead. If there is any difference in the two static pressures then the needle will swing to the high side, indicating the wind direction.
If you want to be really simple, gliders use a piece of wool tied to a small aerial on the nose of the aircraft.
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Static X Z28 (High Quality)
Tags: static tube straight