Navigation PPLintermediate
Order the steps required to convert a charted course into a compass heading in aircraft dead-reckoning navigation, from first to last.
Answer
Determine True Course (TC) from the navigation chart, Apply wind correction angle to obtain True Heading (TH), Apply magnetic variation to obtain Magnetic Heading (MH), Apply compass deviation to obtain Compass Heading (CH)
Explanation
The practical sequence is to start with the desired true course, determine the true heading needed after wind correction, convert true to magnetic using variation, and then convert magnetic to compass using deviation. The actual arithmetic sign depends on whether east or west corrections are given and on the convention used.\n\n**Key takeaway:** Keep each correction attached to its reference transition.\n\n**Glossary:** **WCA**: wind correction angle; **variation**: true–magnetic difference; **deviation**: magnetic–compass difference.
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