Final answer:
On a runway that's 1500 feet or shorter, 'X' markers indicate the runway is closed or not in use and they should be positioned centrally and be clearly visible. However, specifics may vary depending on regulations set by local aviation authorities and airport policies. Safety compliance is paramount.
Step-by-step explanation:
In the context of aviation, 'X' markers are typically placed on a runway to indicate that it's closed or not in use. For a runway that's 1500 feet or shorter, these 'X' markers should be positioned at a central location on the runway to signal pilots that the runway isn't available for landings or takeoffs. It's essential that these markers are large and conspicuous enough to be easily visible by pilots who are approaching the runway.
However, specifics regarding placement of 'X' markers may vary depending on regulations set by aviation authorities like the FAA (Federal Aviation Administration) in the United States and local airport policies.
Therefore, it is always advisable for runway maintenance personnel to consult with these local authorities and guidelines before placing 'X' markers. Compliance with these guidelines ensures safety of all airport operations.
Learn more about 'X' markers on runway