Reset Initial Position on the scratchpad means the aircraft is more than how many nautical miles from the airport selected on POS INIT?

Reset Initial Position on the scratchpad means the aircraft is more than how many nautical miles from the airport selected on POS INIT?

• A. >20 nm
• B. >40 nm
• C. >60 nm
• D. >80 nm

Answer: (B)

Resetting the Initial Position is about re-anchoring the navigation reference to your actual location when you’ve moved far enough away from the airport chosen on POS INIT. If you’re more than a certain distance away, the system can’t reliably use the original Init Ref to compute legs, so you reset Init Position on the scratchpad to set the current position as the new reference. This distance threshold is 40 nautical miles in this context, meaning once you exceed that distance, reinitializing prevents building up position errors that would distort the flight plan. The other distances aren’t the standard trigger, so the 40 nm rule is the one that makes the nav data align with where you actually are.

Resetting the Initial Position is about re-anchoring the navigation reference to your actual location when you’ve moved far enough away from the airport chosen on POS INIT. If you’re more than a certain distance away, the system can’t reliably use the original Init Ref to compute legs, so you reset Init Position on the scratchpad to set the current position as the new reference. This distance threshold is 40 nautical miles in this context, meaning once you exceed that distance, reinitializing prevents building up position errors that would distort the flight plan. The other distances aren’t the standard trigger, so the 40 nm rule is the one that makes the nav data align with where you actually are.