Flight Training - July 2020 - 12

PREFLIGHT WHAT AM I?

BY IAN J. TWOMBLY

SPIN DOCTORS
Types of whiz wheels

E6Bs come in a variety of
materials and styles, but
today they have largely been
replaced by electronic flight
bags.

Manual
The legacy E6B is made of
cardboard, plastic, or metal
and includes a calculation
side of the wheel and a wind
side.

E6B

SPIN THE WHEEL
THERE IS SOMETHING ELEGANT ABOUT THE CIRCULAR SLIDE RULE.

ian.twombly@aopa.org

12  FLIGHT TRAINING JULY 2020

Apps
Tablet apps such as
ForeFlight and Garmin Pilot
have largely replaced both
manual and electronic E6Bs.

MIKE FIZER

A masterful bit of engineering and design, the E6B combines all essential
aviation calculations in a tidy package fit not for a shirt pocket, but a cockpit
sidewall pocket.
The E6B was developed in the 1930s and is derived from centuries-old
nautical tools. At its most essential the E6B makes quick work of flying's
trifecta of time, fuel, and distance. These three parameters are the foundation of all flight planning calculations, and a pilot can use the E6B to solve
all three. There are also quick conversions, rulers for sectional charts, and
more. And that's just on one side of the rule.
The wind side is trickier to operate but includes a nifty way to quickly
calculate the necessary wind correction angle and the groundspeed. With
practice a pilot can spin the E6B wheels nearly as quickly as performing the
same calculations with a digital calculator.
Which brings up the E6B's downfall: technology. First came electronic
E6Bs with their mindless button pushing, and now full-featured flight planning applications make any form of an E6B passé. But there's no denying the
genius simplicity of a cardboard, plastic, or metal wheel sliding along a scale
to get all the information a pilot needs quickly and (with practice) easily.

Electronic
More or less a dedicated
aviation calculator, electronic E6Bs perform all the
same functions but without
the need to understand the
underlying methods.



Flight Training - July 2020

Table of Contents for the Digital Edition of Flight Training - July 2020

Contents
Flight Training - July 2020 - Intro
Flight Training - July 2020 - Cover1
Flight Training - July 2020 - Cover2
Flight Training - July 2020 - Contents
Flight Training - July 2020 - 2
Flight Training - July 2020 - 3
Flight Training - July 2020 - 4
Flight Training - July 2020 - 5
Flight Training - July 2020 - 6
Flight Training - July 2020 - 7
Flight Training - July 2020 - 8
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Flight Training - July 2020 - Cover3
Flight Training - July 2020 - Cover4
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