How is an MDA of 1,310 feet pronounced?

The correct pronunciation of an MDA, or Minimum Descent Altitude, is "Minimum Descent Altitude, One Three One Zero." In aviation, it is standard practice to communicate altitudes in a specific way to ensure clarity and reduce misunderstandings, especially in radio communications where clarity is essential.

When speaking altitudes, the number is broken down into its component digits. In the case of 1,310 feet, it is articulated by clearly stating each digit: "One Three One Zero." This format helps to avoid confusion with similar-sounding numbers and maintains professionalism in air traffic communication.

The other options either alter the digit grouping or incorrectly pronounce the numbers, which could lead to misinterpretation during flight operations. For example, pronouncing it as "One Thousand Three Hundred Ten" emphasizes the thousands and hundreds in a different manner, which is not the standard practice for altitudes in this context.