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DenAlt

By Marcus Staloff

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Description

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

Graphic View: actual altitude and density altitude

Main View Button: brings up Main View and all results


Category: Navigation
Current Version: 1.00
Language: English
Seller: Marcus Staloff
© 2010 Marcus Staloff
mstaloff@verizon.net


Requirements:
iPhone, iPodTouch, iPad,
iPhone OS

Application Price: $0.99

What's New in Version 1.3.3

Fixed a bug wherein the Main View RESULTS fields would not be filled in on return from Graphic View. This problem would only occur if the RESULTS button was pushed without first pushing the RETURN key to dismiss the keyboard. The fix involved disabling the RESULTS button which is colored RED until the RETURN key from a data input field is used. The RESULTS button is then enabled and shows BLUE. On return from Graphics View the RESULTS fields are then properly filled in.

iPhone Screenshot

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3

Customer Reviews

No longer works.

After working fine for a couple years, no longer works. Tried deleting & re-installing; still no joy. Was a handy tool but now reverting to Plan A; E6B.

DenAlt
View In iTunes
  • $0.99
  • Category: Navigation
  • Updated:
  • Version: 1.3.3
  • Size: 2.5 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
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