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The speed of an aircraft relative to the air. Among the common conventions for qualifying airspeed are: indicated airspeed ("IAS"), calibrated airspeed ("CAS"), true airspeed ("TAS"), equivalent airspeed ("EAS") and density airspeed.

10 votes
3 answers
9k views

What is the difference between a pitot tube and a pitot-static tube?

If an aircraft fitted with Pitot tube and static holes on the fuselage, is it necessary to consider the static pressure measurements to calculate the airspeed? …
S.Prabhu's user avatar
  • 141
1 vote
2 answers
366 views

What are the relations between Angle of attack and Calibrated Airspeed?

I would like to estimate Angle of Attack using trigonometric relations i.e AoA = arctan (w/u) airspeed components (i.e u, v, w). … When I am considering body 'x' velocity ('u' component), is it necessary to use the Indicated Airspeed? Instead I would like to use Calibrated Airspeed. Is it acceptable? …
S.Prabhu's user avatar
  • 141