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From The Aviobot Factory:
AvioFuel - Fuel Loading, Uplift and Payload calculator for light jets and turboprops.Fuel / Payload calculator with overweight detection and calculated weight limits. Editable aircraft database and fully customizable aircraft profiles. Great for quick and precise refuel calculations. Forget about mental computation!Key Features: Aircraft database: The app ships with 10 pre-defined, well-known aircraft models, but you can add as many aircraft as you want, modify the existing ones or even remove them from the database. Aircraft profiles: Each aircraft has its own specs, which you can (and should) review/modify in order to match the one/s you're flying. Different standard volume and mass units to choose from, featuring instant unit conversions. Payload / Fuel weight calculations based on your inputs and the aircraft's structural weight limitations. Overweight detection with color-coded status messages, exceeded quantities and correction suggestions. Dynamic Max Payload / Max Fuel calculations. Fast, real-time calculations: Every change you make on the input variables will instantly update the results. Two Fuel-on-board input methods: Total FOB or Right + Left. Balanced loads for each tank when using the R+L FOB Mode. Clean, smart user interface: designed for quick operation and great usability.