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BEECHCRAFT
Section X
Safety
Information
the boots despite the maintenance of the prescribed
minimum speed. The effect of ice accumulation
on
any
unprotected
surface
is
aggravated by the length
of
exposure to the icing conditions.
Ice buildup on
unprotected
surfaces
will
increase drag, add
weight,
reduce
lift, and
generally,
adversely
affect
the
aerodynamic
characteristics
and performance
of the
airplane.
It can
progress
to the
point
where
the
airplane
is
no
longer capable of flying. Therefore,
the
pilot
operating
even
a
fully-equipped
airplane in
sustained
icing conditions
must remain
sensitive
to
any
indication,
such
as
observed
ice accumulation,
loss of
airspeed,
the need for increased
power,
reduced
rate of climb, or sluggish
response,
that ice
is accumulating
on
unprotected
surfaces
and that
continued
flight in these conditions
is
éxtremely
hazardous,
regardless
of
the
performance
of the
deicing/anti-icing equipment.
Rapid
cycling of
the deice boots or cycling before
at
least one-quarter
inch (1/4") of ice has
accumulated
(measured
in the chordwise
direction
or
forward
from the leading edge), may cause the ice to
grow
outside the
contour
of
the inflated boots
and prevent
ice
removal.
March, 1981
10-31
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