Question:
Flew a fancy plane today with HSI.
Halfway through the flight noticed HSI in slaved mode did not match the good ol' whiskey compass.
Guess discrepancy between remote sensing compass in the wingtip and the wobbly thing on the glareshield.
If this occurs which one do you rely on?
Do you "free" the HSI and set it to your whiskey compass or do you leave it in slaved mode and use the remote one?
Which one is more likely to be correct?
DAZED AND CONFUSED