Flight Training - November 2014 - 44

WEATHER

By Jack Williams
ANY TYPE of structural ice can block
pitot tubes or static ports, or break
antennas.

JUST SAY NO

A ZERO-TOLERANCE POLICY FOR SNOW, FROST, ICE

N

ovember's chilly temperatures are a good reminder to review the
dangers of ice as it affects our flying. The most obvious danger is a
layer of snow or a coating of ice on ramps, taxiways, and runways. A
snow-covered surface could keep you from reaching takeoff speed
before you run out of runway. Landing and safely stopping without skidding off
an icy runway can be a major challenge.
While ice on a runway is a challenge worth a
consideration, ice on airplanes is a no-no.
ICE WEEK IS COMING-
ARE YOU READY?
Learn more about why ice
and aircraft don't mix during
ASI's Ice Week, October 26 to
November 1, brought to you by
AOPA Insurance Services and
VOYA (www.airsafetyinstitute.
org/iceweek).

44 /

FLIGHTTRAINING.AOPA.ORG

WHAT ICE DOES TO AIRCRAFT. Ice that forms
on an airplane undermines the work of the
aeronautical engineers who designed the
airplane. Its wings are designed to create the
right amount of the upward-acting force called
lift, which gets an airplane in the air and keeps
it there-despite the force of gravity pulling it
toward Earth.
Lift depends on the smooth flow of air over
the carefully designed wings. Ice disrupts this
orderly flow, reducing the amount of lift that

can be produced. If a pilot tries to take off in
an airplane with ice on it-even the thin, often
hard-to-see ice known as frost-the airplane
might not leave the ground before running off
the runway. What often happens, however, is
the airplane staggers into the air, coming down
soon after.
WHY FROST IS DANGEROUS. Frost is insidious
because it's hard to see and isn't as obviously
dangerous as ice. Frost forms when water vapor
in the air deposits directly as ice without first
condensing into liquid water. It's most likely to
form on a cold night when the sky is clear.


http://www.airsafetyinstitute.org/iceweek http://www.airsafetyinstitute.org/iceweek http://FLIGHTTRAINING.AOPA.ORG

Flight Training - November 2014

Table of Contents for the Digital Edition of Flight Training - November 2014

Contents
Flight Training - November 2014 - Cover1
Flight Training - November 2014 - Cover2
Flight Training - November 2014 - Contents
Flight Training - November 2014 - 2
Flight Training - November 2014 - 3
Flight Training - November 2014 - 4
Flight Training - November 2014 - 5
Flight Training - November 2014 - 6
Flight Training - November 2014 - 7
Flight Training - November 2014 - 8
Flight Training - November 2014 - 9
Flight Training - November 2014 - 10
Flight Training - November 2014 - 11
Flight Training - November 2014 - 12
Flight Training - November 2014 - 13
Flight Training - November 2014 - 14
Flight Training - November 2014 - 15
Flight Training - November 2014 - 16
Flight Training - November 2014 - 17
Flight Training - November 2014 - 18
Flight Training - November 2014 - 19
Flight Training - November 2014 - 20
Flight Training - November 2014 - 21
Flight Training - November 2014 - 22
Flight Training - November 2014 - 23
Flight Training - November 2014 - 24
Flight Training - November 2014 - 25
Flight Training - November 2014 - 26
Flight Training - November 2014 - 27
Flight Training - November 2014 - 28
Flight Training - November 2014 - 29
Flight Training - November 2014 - 30
Flight Training - November 2014 - 31
Flight Training - November 2014 - 32
Flight Training - November 2014 - 33
Flight Training - November 2014 - 34
Flight Training - November 2014 - 35
Flight Training - November 2014 - 36
Flight Training - November 2014 - 37
Flight Training - November 2014 - 38
Flight Training - November 2014 - 39
Flight Training - November 2014 - 40
Flight Training - November 2014 - 41
Flight Training - November 2014 - 42
Flight Training - November 2014 - 43
Flight Training - November 2014 - 44
Flight Training - November 2014 - 45
Flight Training - November 2014 - 46
Flight Training - November 2014 - 47
Flight Training - November 2014 - 48
Flight Training - November 2014 - 49
Flight Training - November 2014 - 50
Flight Training - November 2014 - 51
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Flight Training - November 2014 - 53
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Flight Training - November 2014 - 55
Flight Training - November 2014 - 56
Flight Training - November 2014 - Cover3
Flight Training - November 2014 - Cover4
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