Which airway has an MRA?

Which airway has an MRA?

• A. V18, HEDUD (5,000')
• B. V535 (2,000')
• C. V74 (1,000')
• D. V427 (3,000')

Answer: (A)

Minimum Receiving Altitude is the lowest altitude at which you can reliably receive the navigation signal that defines the airway. This ensures you can stay established on the route using the VOR/TACAN signals that define it. The airway shown with a published MRA of 5,000 feet indicates you must be at or above that altitude to maintain reception and stay on that segment. The other airways either have lower MRAs or none listed in this context, so they don’t demonstrate an MRA for comparison. Therefore, the airway with an MRA is the V18 route via HEDUD at 5,000 feet.

Minimum Receiving Altitude is the lowest altitude at which you can reliably receive the navigation signal that defines the airway. This ensures you can stay established on the route using the VOR/TACAN signals that define it. The airway shown with a published MRA of 5,000 feet indicates you must be at or above that altitude to maintain reception and stay on that segment. The other airways either have lower MRAs or none listed in this context, so they don’t demonstrate an MRA for comparison. Therefore, the airway with an MRA is the V18 route via HEDUD at 5,000 feet.