This app is build to make the hotair balloon load calculation as easy as possible for the pilot. The app contains a database of common hotairballoon components available on the market. In case you find missing components please let us know and we will add them to the app. This app is in the appstore for years now. This app works best when you have a WIFI or a mobile network available. It will work offline but it that case more manual setups are required that would be automatic otherwise. Weight calculation results can be emailed for later reference or auditing. You can configure: Persons on board Cylinders The envelope Basket and burner Meteo information Temperature in celsius or fahrenheit Weight in kg or pounds Tank volume in liters, US-gallons or UK-gallons Envelope volume in cubic meters or cubic feet Altitude in meters or feet Envelope volumes in m3 and ft3 METAR info can be retrieved automatically for an given airfield to: Retrieve actual ground temperature Determine actual field elevation * Retrieve current QNH All configuration data is kept locally on your iPhone. Multiple balloon configurations can be stored. Envelope volumes can be entered in cubic meters or in cubic feet x1000. The app determines automatically if cubic meters or cubic feet are used based on the entered value. For values greater than 1000, cubic meters are assumed, cubic feet (in thousands) for values less than 1000. Note: When all automatic options are selected the following steps are taken to retrieve meteorological and field information: Search for the nearest airport that provides a METAR report Using the retrieved METAR get the QNH and temperature. When your phone contains a barometer field elevation is determined The retrieved values are then used to perform the load calculation In some cases you may not want all options selected. If you are for example preparing your flight at noon you may want to enter the ground temperature manually because it will differ when you are flying in the evening. This app was made by balloon pilots for balloon pilots. In case you are missing any cylinder, basket or burner types in the configuration list please supply information details of those to us and we will update the app. For questions or Recommendations please contact info@hotballoon.nl The load calculation results can be send to any place, so they can be used for later reference, when your device has Email capabilities.
