Free E6B

Gratis E6B Flight Computer emulator

Free E6B emulates a mechanical E6B Flight Computer. The app can be used to perform calculations, or to practice and learn how to use a mechanical E6B.

The e6B is an analog computer invented in the 1930's by Lt. Philip Dalton, USN, for purposes of flight training and calculations.

The "slide rule" or "front" side includes a circular log-log scale that can be used for multiplication, division, fuel consumption and time/speed/distance calculations. There are also various conversions available, such as nautical-miles/statute-miles/kilometers, fuel and oil volume and weight.

The windows on the front are used for airspeed, various forms of "altitude" and mach number calculations.

The "wind side is a vector computer used to determine flight headings, wind correction angle etc.

The app saves the screen's current position, so the next time it opened, the same calculation is visible.

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We hope you enjoy the Free E6B app, and find it useful and instructive.