Flight Training - April 2015 - 8

LETTERS

Talk back
WE APPRECIATE YOUR
COMMENTS. Please email letters
to flighttraining@aopa.org. Letters
will be edited for style and space.

SECOND SOLO SPIN

LESSONS FROM 'FLIGHT LESSON'

T

im Haidinger's "Flight Lesson: Second Solo Spin" (March
2015 Flight Training) lacked some editing, or at least a disclaimer pointing out items that go contrary to basic CFI
responsibilities: What CFI would send a student to practice
stalls without discussing stall/spin awareness and recovery?
Several years back a CFI working for
the flight school where I learned to fly
did the same thing with a student in a
150 with dire results: They both perished
when the wings folded back attempting
a loop.
I would hope that no one who read
this article goes on to try aerobatics in an
aircraft without an aerobatic certificate.
Malcolm Lenson
Vacaville, California
The Flight Lesson section is written by
readers with only minor editing to conform
to our style. We typically don't take out
points that might seem contrary to safety,
in part because the story is meant to convey
one pilot's viewpoint, poor choices and all.
In doing so, we hope readers can learn from
others' mistakes. -Ed.
COLD WEATHER FUN

In "After the Checkride: Cold Weather
Fun" (February 2015 Flight Training), it
is recommended a pilot have a carbon
monoxide detector (very good idea)
or a pulse oximeter (very bad idea) on
board. As most pilots know, carbon
monoxide poisons the body (aka anemic hypoxia).  Pilots should know that

a pulse oximeter only measures hemoglobin saturation in the blood and the
pulse oximeter cannot tell the difference
between hemoglobin saturated with
oxygen and hemoglobin saturated with
carbon monoxide. Therefore, a pilot
could be dangerously exposed to carbon
monoxide and still have a normal pulse
oximeter reading (99 percent to 100
percent). For that reason, a responsible
pilot should definitely invest in a carbon
monoxide detector for measuring carbon
monoxide levels on the flight deck. If the
carbon monoxide detector alarms, the
prudent pilot should assume he has been
exposed to carbon monoxide and ventilate
the cabin.
Dr. Greg Stewart
Stratford, Ontario, Canada

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Flight Training - April 2015

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

Contents
Flight Training - April 2015 - Cover1
Flight Training - April 2015 - Cover2
Flight Training - April 2015 - Contents
Flight Training - April 2015 - 2
Flight Training - April 2015 - 3
Flight Training - April 2015 - 4
Flight Training - April 2015 - 5
Flight Training - April 2015 - 6
Flight Training - April 2015 - 7
Flight Training - April 2015 - 8
Flight Training - April 2015 - 9
Flight Training - April 2015 - 10
Flight Training - April 2015 - 11
Flight Training - April 2015 - 12
Flight Training - April 2015 - 13
Flight Training - April 2015 - 14
Flight Training - April 2015 - 15
Flight Training - April 2015 - 16
Flight Training - April 2015 - 17
Flight Training - April 2015 - 18
Flight Training - April 2015 - 19
Flight Training - April 2015 - 20
Flight Training - April 2015 - 21
Flight Training - April 2015 - 22
Flight Training - April 2015 - 23
Flight Training - April 2015 - 24
Flight Training - April 2015 - 25
Flight Training - April 2015 - 26
Flight Training - April 2015 - 27
Flight Training - April 2015 - 28
Flight Training - April 2015 - 29
Flight Training - April 2015 - 30
Flight Training - April 2015 - 31
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Flight Training - April 2015 - 33
Flight Training - April 2015 - 34
Flight Training - April 2015 - 35
Flight Training - April 2015 - 36
Flight Training - April 2015 - 37
Flight Training - April 2015 - 38
Flight Training - April 2015 - 39
Flight Training - April 2015 - 40
Flight Training - April 2015 - 41
Flight Training - April 2015 - 42
Flight Training - April 2015 - 43
Flight Training - April 2015 - 44
Flight Training - April 2015 - 45
Flight Training - April 2015 - 46
Flight Training - April 2015 - 47
Flight Training - April 2015 - 48
Flight Training - April 2015 - 49
Flight Training - April 2015 - 50
Flight Training - April 2015 - 51
Flight Training - April 2015 - 52
Flight Training - April 2015 - 53
Flight Training - April 2015 - 54
Flight Training - April 2015 - 55
Flight Training - April 2015 - 56
Flight Training - April 2015 - Cover3
Flight Training - April 2015 - Cover4
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