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Which inputs does dead reckoning use to predict position?
Choices
✓ Heading, groundspeed, elapsed time, and distancecorrect
Dead reckoning computes position from these known quantities.
Only visible landmarks
Navigating solely by landmarks is pilotage.
Only a VOR course deviation indicator
That is radio navigation, not dead reckoning.
Satellite position alone
Using satellite position directly is GPS navigation.
Why
Dead reckoning predicts position by computation using a known heading, groundspeed, elapsed time, and distance from a known starting point.
FAA source: PHAK Ch. 16browse the reference library →
This is taught in Pilotage, Dead Reckoning and Time-Speed-Distance — study the lessons free, then practice with grading and mastery tracking.
Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.