E6BJA E6B CX3 Computer (Lite)

Dr Jamie Alnasir, Ph.D. (KryptonScientific)

About this app

The E6BJA (Lite Edition) Flight Computer is a powerful software-based digital computer for practising performing aeronautical and flight calculations speedily and easily. Inspired by the Whiz-wheel (e.g. E6B, CR-1, CRP-1, CRP-5 etc), an ingenious and excellent teaching tool, and by the more modern handheld electronic digital flight computer, the E6BJA software app is rich in features, powerful and efficient. It can be installed on a phone or tablet --- for convenience --- and has a number of advantages over the whiz-wheel; calculations are simpler and quicker to perform, with less margin of error, better reproducibility and is less error-prone. It has a clear and intuitive user interface.

The E6BJA calculator currently provides the following features:

E6B wind triangle, True Air Speed, Ground Speed visualiser
Wind Triangle solver
Wind Correction Angle (WCA)
Climb Calculator
Descent Calculator
Clide Calculator
Leg Time, Distance, Speed Calculator
Track Correction (1:60 rule) Calculator
Fuel Calculator
Weight, Arm and Moment Calculator
Pressure Altitude
Density Altitude
Cloud Base
Dew Point and Relative Humidity
Mach Number
True Air Speed (TAS) to Indicated Air Speed (IAS)
Indicated Air Speed (IAS) from True Air Speed (TAS)
Ground Speed (GS)
Load Factor from Bank Angle
Time Addition/Subtraction Calculator
Aviation Units Converter

Ratings and reviews

After having the app for a little over a year, I have found the calculations a bit off. I was calculating PAlt and DAlt on both the app and my sports E6B and found a difference in upwards of 120ft. I'm not sure if it's in need of an update, but I'm unsure if I can use the app for the necessary calculations. But it's still a great app.

I absolutely love this app. I've tested it against both my E6BJA and CX3 calculators and it's not only reliable but provides everything they do and much more. Each calculator function has notes and equations, which are informative and helpful, and the user interface is simple and easy to use. It seems to also be a very compact download. Thanks for developing this!

A useful app to give the same functionality as the pilots whizz wheel. Handy for in cockpit use quick, efficient and less prone to human error as opposed to the whizz wheel. Good to also confirm your whizz wheel calculations, if you decide to gradually get used to it (like me). Thanks to developer for creating this.

What’s new

New release targeting Android 15 (API 35)