Load Chart App
Android
Our load chart application is currently only available on Android devices but we hope to release an IOS version soon.
The application is free to download an use at this time.
While all care has been taken with the development and testing of this application, the Aircraft flight manual remains the only approved source for loading and lift calculations.
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All data in the application is stored locally on your device. For more information on Privacy, please read our Application Privacy Policy here
Overview and navigation
When the application opens the lat page in use will open.
Navigate through the application using the navbar at the bottom of the screen.
Lift is the main page for lift calculations.
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Favourites is where you can set up your balloons including weights and a photo.
Settings is where you can set up the units and some default values for pilot weight and envelope temperature.
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The + and - buttons are used to change most values or you can double tap on most fields to open the keypad and type in a value.
Lift Calculations
The Lift page is what we are really here for.
You have three options for setting up the balloon details to be used in the calculations.
1) Pick a model of Kavanagh Balloon from the drop down list - this will supply the volume information and also the GCW / maximum weight information for the calculations.
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2) Enter a custom balloon volume in the units you have chosen on the settings page. The GCW data is not available in this mode but it is helpful for a quick check of the available lift.
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3) Select one of your favourite balloons that has been set up on the favourites page. This will supply the app with all of the custom information your have entered including empty aircraft weight and weight with the selected fuel configuration.
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The loading calculations work on the same inputs as the flight manual load chart in section 5.
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​​Set the ambient temperature at the launch point
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Set the elevation of the launch point in AMSL
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Set the maximum planned altitude AMSL for the flight.
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The result window will display the available lift based on the inputs. If the GCW information (maximum weight) is available then the available lift will be limited by that data.
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If the GCW is exceeded by the gross lift then a GCW waring will be displayed and the actual gross lift result will be available to give you an idea of how underloaded you may be. An indication of the maximum altitude available when loaded to the full GCW will be shown if greater than your planned maximum altitude.
Where a custom volume is set on the lift page, only the Available lift value will be displayed.
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