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Instrumentationhard#490

Density error in the ASI is the difference between:

A

IAS and CAS

B

EAS and TAS, caused by non-standard air density at altitude

Correct
C

CAS and EAS

D

TAS and ground speed

Explanation

Density error is the difference between EAS and TAS; at altitude, lower air density means TAS is higher than EAS.

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