What is the correct way to say the altitude of 6,500 feet on the radio?

Saying the altitude of 6,500 feet on the radio correctly involves clearly articulating the numbers to avoid any potential misunderstanding, especially in aviation communications where clarity is critical. The proper phrase is "six thousand five hundred feet," which clearly conveys the correct altitude without any ambiguity.

In aviation communication, it is important to use unambiguous phrasing. Each component of the altitude is spoken clearly—saying "six" for 6, "thousand" for the thousand mark, and "five hundred" for the remaining 500 feet precisely communicates the intended altitude. This ensures that the receiving party understands the altitude without confusion.

Saying "six thousand fifty" or mispronouncing any numbers, as in the mistaken option, can lead to misunderstandings in critical communications. Always aim for clarity and precision, which is what the correct phrasing achieves.