I call it the pilot's magic wand...in the UK pilots refer to it as the whiz wheel. Many also call it the flight computer but it definitely does not resemble any PC, Apple or BB I've ever seen.
Regardless, it's a brilliant tool, and every pilot will need to know how to use it. Developed by US Naval Lt. Philip Dalton in the late 1930s, this small set of wheels is used during flight planning on the ground and air to help you calculate:
- wind corrections
- time en route
- fuel burn
- ground speed
- nautical to statute mile conversions
- quantity weight conversions
- crosswind tables
- and more...
So here are the resources:
- E6B Flight computer instructions
- Some history from Wikipedia
- How to Use a Graphic Flight Computer to Find Ground Speed and True Heading
- Online E6B simulator
- Online E6B Emulator
I almost forgot...Where to order? Try here.