Heino & Deanne Weisberg wrote:
I do not believe my airspeed indicator is accurate. Is there a way to
verify/calibrate an airspeed indicator on the ground?
Heino

What sort of ASI do you have?

Have you looked to see if this is addressed in the manual?

For what range of speeds do you want to check/calibrate it?

In the air you can check it vs GPS.

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FF