Originally Posted by foxmoth
I certainly teach the use of it during the nav phase, I point out the fact that the error is normally of an order that will not make much difference, but should always be checked.
Yep, teach it so that the student realises it's part of the equation but then (and for once I agree with IO540 !) let's forget it in the bigger scheme of things.
If the compass has been swung and adjusted properly, the error is so small relative to all the other possible variations that very few people will fly that accurately - except maybe on a good autopilot.
Track-crawling and scud-running forever !
Rgds, Sleeve.
P.S. Isn't it called the DEVIATION CARD ?