DenAlt

Marcus Staloff地圖與導航2015-05-15

價格：免費

更新日期：2015-05-15

檔案大小：2.8 MB

目前版本：1.3.3

版本需求：需要 iOS 7.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。

支援語言：英語

DenAlt is an iPhone/iPodTouch app which calculates the density altitude for inputs of actual altitude, air temperature, altimeter setting (atmospheric pressure), and dew point. The density altitude is a conceptual artifice and is the indicated altitude corrected for non-standard temperature and pressure. Pilots use the density altitude as a convenient measure of air density. Air density in turn determines aircraft performance. As the air density decreases so does aircraft performance.

All pilots are taught about the effects of density altitude and gain some degree of intuition which is helpful. Nevertheless the density altitude is intended to be used in a quantitative manner. The traditional way involves the use of analog charts or analog circular slide rule type of calculators. These methods are not particularly convenient and the practical result is that most pilots do not properly take account of the decrease in aircraft performance.

This app makes the inclusion of density altitude effects fast, accurate, and convenient. Additionally the real world appreciation of a significant difference between an indicated altitude and the corresponding density altitude is enhanced by the graphical presentation of results.

Enter:

Alittude (Field Elevation)

Temperature

Altimeter Setting

Dewpoint

Tap RESULTS button