E6B Computer: Celebrating 75 Years Of Flight

_Tombstone_

http://www.informationweek.com/government/e6b-computer-celebrating-75-years-of-flight/a/d-id/1323695

The E6B flight computer was introduced to the US Army in 1940. Few devices have been around this long, have had cameo appearances in Star Trek, and remain in use today.

The front of the E6B features a logarithmic slide rule, which performs basic multiplication and division. The "whiz wheel" performs useful conversions between different units: gallons, miles, kilometers, pounds, minutes, seconds, etc. If you need to calculate the weight of a certain amount of fuel -- for weight and balance -- you simply position the wheel at the exact amount and look at the corresponding value. The front also contains windows for variations when converting calibrated airspeed to true airspeed, or indicated altitude to true altitude.

The back features another slide rule and wheel designed for computing ground speed and wind correction angle. It provides a graphic method of solving problems in trigonometry and displaying the answers in an accessible form.

https://www.youtube.com/watch?v=60tj_MHSlQM

pepe the prawn

Brilliant piece of kit to be fair, still had nightmares about it when I first started using it though :pac: (well, it's newer cousin, the crp5)

eatmyshorts

Witchcraft!

duskyjoe

Hated the feckin yokes......used it for my atpl exams and never used it again. A relic from a bygone era says me.