Short YouTube video by Kenny Keller (uploaded Nov 29, 2010) in which two speakers discuss the compass deviation chart. They explain that compass deviation corrects the aircraft compass for magnetic fields produced by electronic/instrumentation, and distinguish this from magnetic variation. The clip is conversational and playful, with some repetition.
Chapters
You're already taking video? Yep.
And what is it you're checking on? What are you gonna do?
I'm actually taking a photo of the compass deviation chart.
Nice.
So I can have it with me instead of having to run out to the aircraft every single time I'm doing cross country planning. And tell our viewers, what is the compass correction chart? It corrects the compass for electronic equipment in the aircraft. Deviation or variation? Variation. No, that's compass. That's magnetic variation. What?
Compass deviation.
Compass deviation. Yes. Come on, private pilot. That's what I said the first time. And what is.
Compass deviation? Why do you have compass deviation?
Compass deviation is your true course corrected for the compass in the aircraft. But why does the compass and aircraft need to be corrected? Because of the electronic equipment in the aircraft.
There you go.
Because of the magnetic fields that are produced by the instruments of the aircraft.