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Thread: Why does the HSI have to be set to the front course heading for ILS approaches?
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Old 3rd Jan 2010, 09:33
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rudderrudderrat
 
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I thought it was because the VOR has a "TO / FROM" logic inbuilt. (This logic was displayed on early VOR receivers).

The ILS has no such logic so the front course has to be the reference, for correct sensible display.
Last edited by rudderrudderrat; 3rd Jan 2010 at 09:35. Reason: typo
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