Flight Training - June 2015 - 31

what does it actually mean? What do the
lines stand for? What does it mean for the
airplane if you're outside on the left or
outside on the right?"
I was rewarded with a blank stare. The
poor kid had no clue. He was a victim of
over-automation.
Don't get me wrong. Weight and
balance apps are pretty slick-at least,
as long as you understand the science
that drives the app. Apps don't replace
brains-or shouldn't, anyway. But in this
case, the app lobotomized the student
pilot. It gave him a fly/no-fly call, but he
didn't understand what the slick interface was telling him about the aerodynamic effects of weight and balance on
his airplane.
WEIGHT. Airplanes that are too heavy
don't fly too well. Or maybe won't fly at
all. Overweight airplanes also are more
prone to structural failures in flight, and
nobody wants that.
All airplanes have a certified gross
weight, basically a guaranteed weight
that-if not exceeded-ensures that
the airplane can perform as advertised.
Checking to see if you've exceeded your
gross weight is the simple math of empty
airplane + fuel + passengers + cargo.
Of course, like milk that can still be consumed after the expiration date, most airplanes will fly over gross weight. But don't
kid yourself. When you exceed your gross
weight, you've just became a test pilot.
And if you run off the end of the runway
without ever getting airborne because you
exceeded your gross, your insurance may
not cover you. If you got away with that
once, don't assume you can get away with
it a second time. How any given airplane
will act, even when identically overloaded, changes with other variables such as
density altitude, wind, temperature, and
even runway surface.
It's easy to overload a small airplane.
For most four-seat airplanes, putting in
four humans and a full load of fuel will do
the trick.
I got my lesson in overweight performance 30 years ago when I was a newly
minted private pilot. I was in Farmington,
New Mexico, with three passengers on a

A WORLD OF APPS
Many options to choose from
There are myriad weight and balance applications to choose from.
Here are a few of our favorites:

ForeFlight-The ubiquitous all-in

WnB Pro-An intuitive interface and

application now includes a weight and

dedication to doing one thing very

balance function that pilots say makes

well make this app a winner, according

preflight planning entirely seamless.

to users.

Gyronimo-Although it isn't cheap, Gyronimo is
incredibly robust and visually stunning. It's easy
Aviation W&B Calculator-Rated at

to use, with sliders to quickly change values and

more than four stars on Apple's App

a graphical interface that conveys information

Store, this app includes 130 prepro-

directly.

grammed airplane types and 15
customizable loading locations.

JUNE 2015 FLIGHT TRAINING

/ 31



Flight Training - June 2015

Table of Contents for the Digital Edition of Flight Training - June 2015

Contents
Flight Training - June 2015 - Cover1
Flight Training - June 2015 - Cover2
Flight Training - June 2015 - Contents
Flight Training - June 2015 - 2
Flight Training - June 2015 - 3
Flight Training - June 2015 - 4
Flight Training - June 2015 - 5
Flight Training - June 2015 - 6
Flight Training - June 2015 - 7
Flight Training - June 2015 - 8
Flight Training - June 2015 - 9
Flight Training - June 2015 - 10
Flight Training - June 2015 - 11
Flight Training - June 2015 - 12
Flight Training - June 2015 - 13
Flight Training - June 2015 - 14
Flight Training - June 2015 - 15
Flight Training - June 2015 - 16
Flight Training - June 2015 - 17
Flight Training - June 2015 - 18
Flight Training - June 2015 - 19
Flight Training - June 2015 - 20
Flight Training - June 2015 - 21
Flight Training - June 2015 - 22
Flight Training - June 2015 - 23
Flight Training - June 2015 - 24
Flight Training - June 2015 - 25
Flight Training - June 2015 - 26
Flight Training - June 2015 - 27
Flight Training - June 2015 - 28
Flight Training - June 2015 - 29
Flight Training - June 2015 - 30
Flight Training - June 2015 - 31
Flight Training - June 2015 - 32
Flight Training - June 2015 - 33
Flight Training - June 2015 - 34
Flight Training - June 2015 - 35
Flight Training - June 2015 - 36
Flight Training - June 2015 - 37
Flight Training - June 2015 - 38
Flight Training - June 2015 - 39
Flight Training - June 2015 - 40
Flight Training - June 2015 - 41
Flight Training - June 2015 - 42
Flight Training - June 2015 - 43
Flight Training - June 2015 - 44
Flight Training - June 2015 - 45
Flight Training - June 2015 - 46
Flight Training - June 2015 - 47
Flight Training - June 2015 - 48
Flight Training - June 2015 - 49
Flight Training - June 2015 - 50
Flight Training - June 2015 - 51
Flight Training - June 2015 - 52
Flight Training - June 2015 - 53
Flight Training - June 2015 - 54
Flight Training - June 2015 - 55
Flight Training - June 2015 - 56
Flight Training - June 2015 - Cover3
Flight Training - June 2015 - Cover4
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https://www.nxtbook.com/nxtbooks/aopa/ft_201302
https://www.nxtbook.com/nxtbooks/aopa/ft_201301
https://www.nxtbook.com/nxtbooks/aopa/ft_201212
https://www.nxtbook.com/nxtbooks/aopa/ft_201211
https://www.nxtbook.com/nxtbooks/aopa/ft_201210
https://www.nxtbook.com/nxtbooks/aopa/ft_201209
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