What is the correct terminology for stating an altimeter setting of 28.72?

The correct terminology for stating an altimeter setting of 28.72 is "Altimeter Two Eight Seven Two." This phrasing is utilized in aviation to ensure clarity and precision when communicating critical information regarding altitude, particularly to maintain safety and prevent misunderstandings in flight operations.

When communicating altitude settings, it is essential to avoid ambiguity, and the structure "Altimeter [number]" followed by the individual numbers spoken clearly is standard practice. This approach ensures that the information is conveyed in a manner that is easily understood by pilots and air traffic controllers alike, minimizing the risk of misinterpretation.

Other formulations may introduce unnecessary complexity or non-standard phrasing. For instance, stating "Twenty-eight point seven two altimeter" breaks the standard convention and can lead to confusion. Similarly, "Altimeter Setting Twenty-eight Pointe Seventy-two" is less concise and does not conform to commonly accepted communication protocols. Lastly, "Setting altimeter two eight seven two" lacks the direct reference to "altimeter" at the beginning of the phrase, which is crucial for ensuring immediate recognition of the context in which the numbers are provided.