Flight Training - December 2019 - 5

WHY I FLY

I JUST READ GREG BROWN'S OCTOBER

column ("Flying Carpet: Gift of Flight").
As I struggle with my studies for the CFI
knowledge exam, occasionally thinking
"I'll never get this," it is an article like this
that reminds me how wonderful it is to
share a flight with ground dwellers and
give them an amazing and unforgettable
experience. Thank you, Greg, for helping
me remember #whyifly.
Gary Palmer
Ranchos Palos Verdes, California

Instrument designers, recognizing
the limitation of the turn-and-slip,
modified it slightly so that it would
respond to both roll and yaw. Now
when you start to roll, the turn coordinator will show a turn immediately,
allowing the pilot to correct before the
turn gets started. This is easier for most
pilots to interpret should the attitude
indicator fail.
So why do some aircraft still have
a turn-and-slip? There are two major
reasons. First, the turn-and-slip indicator
is less "twitchy" in turbulence. Second,
in the case of an upset that devolves into
a spin, the turn-and-slip will always
give correct information about how the
airplane is turning, thus allowing a pilot to
recover from a spin even if the other gyros
have tumbled and are no longer providing
accurate information. This is why military
aircraft have kept the turn-and-slip.
Brian Lloyd
Spring Branch, Texas

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I RAN ACROSS JILL W. TALLMAN'S SHORT

article on the turn-and-slip (needle-ball)
versus the turn coordinator ("How It
Works: Turn Coordinator," January 2019
Flight Training). There were a few errors
in there that might confuse students.
Both instruments indicate rate of
turn, which is actually rate of yaw; i.e.,
how fast the airplane is turning about
the vertical axis. The problem with the
turn-and-slip indicator is that it does
not indicate the beginning of a turn,
when the airplane is rolling. Initially,
the airplane is rolling without turning. A
turn-and-slip instrument will stay centered during the roll so it doesn't help
you much with keeping the wings level
should your attitude indicator fail.

thousands of active
listings from hundreds of
the top employers in all
sectors of the industry.

ERRATUM
"WHAT AM I: CHECK YOUR SIX" (OCTOBER

2019 Flight Training) incorrectly described
the effect of pulling up on the elevator.
It increases the tail's downforce. Flight
Training regrets the error.
We welcome your comments. Please email
flighttraining@aopa.org. Letters will be edited
for style and space.

AOPA.ORG/FT  5

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Flight Training - December 2019

Table of Contents for the Digital Edition of Flight Training - December 2019

Contents
Flight Training - December 2019 - Cover4
Flight Training - December 2019 - Cover1
Flight Training - December 2019 - Cover2
Flight Training - December 2019 - Contents
Flight Training - December 2019 - 2
Flight Training - December 2019 - 3
Flight Training - December 2019 - 4
Flight Training - December 2019 - 5
Flight Training - December 2019 - 6
Flight Training - December 2019 - 7
Flight Training - December 2019 - 8
Flight Training - December 2019 - 9
Flight Training - December 2019 - 10
Flight Training - December 2019 - 11
Flight Training - December 2019 - 12
Flight Training - December 2019 - 13
Flight Training - December 2019 - 14
Flight Training - December 2019 - 15
Flight Training - December 2019 - 16
Flight Training - December 2019 - 17
Flight Training - December 2019 - 18
Flight Training - December 2019 - 19
Flight Training - December 2019 - 20
Flight Training - December 2019 - 21
Flight Training - December 2019 - 22
Flight Training - December 2019 - 23
Flight Training - December 2019 - 24
Flight Training - December 2019 - 25
Flight Training - December 2019 - 26
Flight Training - December 2019 - 27
Flight Training - December 2019 - 28
Flight Training - December 2019 - 29
Flight Training - December 2019 - 30
Flight Training - December 2019 - 31
Flight Training - December 2019 - 32
Flight Training - December 2019 - 33
Flight Training - December 2019 - 34
Flight Training - December 2019 - 35
Flight Training - December 2019 - 36
Flight Training - December 2019 - 37
Flight Training - December 2019 - 38
Flight Training - December 2019 - 39
Flight Training - December 2019 - 40
Flight Training - December 2019 - 41
Flight Training - December 2019 - 42
Flight Training - December 2019 - 43
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Flight Training - December 2019 - 45
Flight Training - December 2019 - 46
Flight Training - December 2019 - 47
Flight Training - December 2019 - 48
Flight Training - December 2019 - 49
Flight Training - December 2019 - 50
Flight Training - December 2019 - 51
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Flight Training - December 2019 - 53
Flight Training - December 2019 - 54
Flight Training - December 2019 - 55
Flight Training - December 2019 - 56
Flight Training - December 2019 - 57
Flight Training - December 2019 - 58
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Flight Training - December 2019 - 60
Flight Training - December 2019 - 61
Flight Training - December 2019 - 62
Flight Training - December 2019 - 63
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Flight Training - December 2019 - 65
Flight Training - December 2019 - 66
Flight Training - December 2019 - 67
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Flight Training - December 2019 - 70
Flight Training - December 2019 - 71
Flight Training - December 2019 - 72
Flight Training - December 2019 - Cover3
Flight Training - December 2019 - Cover4
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