SectlonX
BEECHCRAFT
Wy
lnformetlon
minimum speed
for
flight
in
icing conditions
is
not
specified in the manual, the following
indicated
airspeeds must be maintained:
All
Baron and Travel Air Models -
130
KIAS
All
other
Beechcraft twin-engine models -
140
KIAS
The pilot must remain aware
of
the fact that if he
allows
his
airspeed
to
deteriorate
below
this
minimum speed. he will increase the angle
of
attack
of
his airplane
to
the point where ice may build
up
on
the
under
side
of
the
wings
aft
of
the
area
protected by the boots.
The fact
or
extent
of
ice build-up in unprotected
areas
will
not
be
directly
observable from the
cockpit. Oue
to
distortion
of
the
wing
airfoil.
increased drag and reduced lift. stalling speeds will
increase as ice accumulates
on
the airplane.
For
the
same reasons. stall warning devices are not accurate
and cannot
be
relied upon
in
icing conditions.
Even
though
the
pilot
maintains the prescribed
minimum speed
for
operating in icing conditions, ice
is
still likely to build
up
on
other
unprotected areas
{the fuselage and the unprotected wing leading edge
inboard
of
the
engine
nacelle).
Under
some
atmospheric conditions.
it
may even build up aft
of
1o-30
March, 1981
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