A direct route between two ground aids includes a section with no usable signal coverage. What does the material indicate the aircraft may need to do?

### Why this is right The material gives this exact logic: a direct route cannot be followed using ground aids if part of it lacks coverage, so the aircraft may route through another aid. The intermediate point provides a supported path onward. ### The concept Navigation-aid coverage applies to the route being flown, not just to its endpoints. Having a station at the beginning and end does not prove that the aircraft can use those stations throughout the intervening segment. Updated charts allow the pilot to identify coverage and route information before departure. ### The other options - **B. Assume the direct route remains supported because both endpoints have aids**: endpoint availability does not remove a coverage gap between them. - **C. Replace all chart information with visual landmarks regardless of flight rules**: visual landmarks do not automatically substitute for an approved instrument route or its requirements. - **D. Use an outdated chart to avoid changing the planned route**: outdated information may omit changes to aids, routes, or airport procedures. ### Terms - **Coverage**: the region in which a navigation aid can be used. - **Ground aid**: a navigation facility located on the ground. ### Remember A route is supported only where the required navigation signals are usable.