ColdCalcMDA app for iPhone and iPad

Cold Calc MDA is designed to clearly and simply input the minimum required fields (Elevation, Charted MDA and the reported temperature) to obtain a temperature corrected MDA. Once these three variables have been entered simply touch the background to dismiss the keyboard and your results are immediately calculated for you and your HAA ( Height Above Aerodrome ) and corrected MDA are clearly displayed. 

Error Checking
The app automatically checks for input errors such as:
-MDA being lower than the Elevation, 
-MDA equals Elevation,
-Either Elevation and/or MDA being omitted etc.

Modifications
The temperature is input via a slider making it easy to modify the reported temperature without having to type in numbers via a keyboard.  These modifications are always displayed in real time.

Once you have set-up your parameters and corrected your MDA the app can be turned off. Should a change occur at your destination airport, turning the app back on will reveal all the previous entered data so only the changes required to be made require entry.

Very Simple, Very Clean & Very Accurate

Scenario example :
You are setting  up for an ILS approach. You enter the following data
Elevation : 230
Charted MDA : 442
Airport Temperature : -17 c

The app will calculate the :
-HAA
-Correction to be applied to your MDA & 
-Corrected MDA.

As you approach the field, the controller advises that the Glide Slope is u/s and the approach has now changed to a "Localizer Only" approach !

You pull out "Cold Calc MDA" app and the only change you require is the "LOC ONLY" charted MDA. You now enter the Loc Only MDA and your new Corrected MDA is immediately displayed in bold large easy to read digits.

I designed and coded this app to alleviate the cumbersome and time consuming error prone charts we currently access to obtain the identical results. I always get my First Officer to perform that task manually via the approved charts as this app should be used as a reference only !
 (there.....  legal stuff addressed )

I hope you find it useful. It will reduce your workload and prevent common chart "look-up" errors as well as interpolation inaccuracies. I look forward to receiving your comments and suggestions.

Capt. R. Sulpizio
Airbus 330-300

What pilots are saying about ColdCalcMDA :



A330 CA - ★★★★★

by Ti-Luc D - Version 1.0 - 18 August 2011

Bravo! (v1.0) Quick, simple to use, precise. Rapide, facile à utiliser, précis.

Beautiful GUI - ★★★★★

by ToneDawg1245 - Version 1.0 - 14 July 2011

Very Clean non-cluttered interface. Large digits. No confusion. Very Nice.

Fantastic tool! - ★★★★★

by CTSC_C30A - Version 1.0 - 23 June 2011

This is extremely handy! Simple, but effective with a nice intuitive interface. Great job!

Great App!! - ★★★★★

by Icepilot wannabe - Version 1.0 - 21 June 2011

Quick, simple and easy to use...saves the squinting at charts and mental math on a cold dark approach.

Finally!! - ★★★★★

by 777flyer - Version 1.0 - 21 June 2011

"ColdCalcMDA" is by far "Best in Class". Simple to use, accurate and non distracting. Perfect for the IFR pilot operating in cold weather.

Finally a useful app for pilots - ★★★★★

by Gomide - Version 1.0 - 19 June 2011

Having flown IFR for over 20 years, I truly welcome the arrival of the ColdCalcMDA App. It is quick and simple with an incredibly easy to read interface. It is very accurate as well. Much more so than the graphs I use to compare it against as there is no interpolating required. Temperature modifications are a breeze ! This is a most welcomed addition to my flight bag. Thanks for designing this much needed tool Capt. JG / Executive Jets

ColdCalcMDA - ★★★★★

by 777Capt - Version 1.0 - 18 June 2011

Nifty, accurate and quick. A great operational reference tool for all IFR pilots operating in winter conditions.