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3 Answers

Do ELECTRONIC flight computers have isogonic line values factored into them? If so, how does it know where I am departing from, etc?

Asked by: 4841 views General Aviation, Student Pilot

Elctronic E6B's, such as the CX-2, are useful in calculating a number of functions; one of which is true heading. 

However, I never "tell" the electronic E6B the location of my departure OR my destination.  Therefore, HOW can it calculate true heading without knowing which isogonic line to factor in?

It DOES calculate true heading...I'm just not sure how it "knows" where I am in order to calculate the magnetic variation factor required for my true heading.

 

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3 Answers



  1. Jason Schappert on Oct 30, 2010

    It doesn’t know where you are.
    I know on the sportys model you input your varients. not sure on the cx-2
     
    Jason

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  2. Best Answer


    Gary Moore on Oct 30, 2010

    You would have to adjust that ‘true heading’ for isogonic – just like you need to adjust it for compass error…

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  3. Lindsay Atkins on Oct 30, 2010

    Oh, right!  Then it will give me my magnetic heading!  Sorry, I was confusing true heading with magnetic heading.

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