PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 17th Oct 2019, 03:07
  #3111 (permalink)  
568
 
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Originally Posted by Smythe
This illustrates the outstanding issue with aviation, due to the cert process, systems are hopelessly antiquated...a pitot tube, with all of its issues to measure winds...and AOA vane, with all of itas issues, to measure the angle of attack.

A pitot tube?? might as well stick your finger out the window...and gues ( I mean that is what all the algorithms have to do!)

Real world applications in the same areas use sonic OLD OLD technology...this is like using a cup anemometer to measure windspeed...OLD. Instantaneous winds with cups spinning in circles??? Really?

The required height of the measurement, 15m????? At what point on the runway is 15m of any use?

In the business we use sonics, both 2D and 3D for winds..

Using a cup anemometer, a pitot tube, or a mechanical AoA vane is laughable.

Time to evolve, or become a casualty of evolution...(as we are now seeing with the MAX)
Pitot tube:
"It's a slender tube that has two holes on it. The front hole is placed in the airstream to measure what's called the stagnation pressure. The side hole measures the static pressure. By measuring the difference between these pressures, you get the dynamic pressure, which can be used to calculate airspeed".

Hope this helps.
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