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BEECHCRAFT
Section
X
Safety
Information
that
he can no longer maintain altitude. At this point
he has lost most,
if
not all, of his safety options,
including perhaps a 180 degree turn to retreat along
the course
already
traveled.
The responsible
and
well-informed
pilot
recognizes
the limitations
of
weather
conditions,
his airplane
and
its systems and
reacts promptly; he lives to
fly
again.
MOUNTA/N
FLY/NG
Pilots
flying
in mountainous
areas should
inform
themselves
of all aspects
of mountain
flying,
including
the effects
of topographic
features
on
weather
conditions.
Many
good
articles have been
published,
and a synopsis
of mountain
flying
operations
is included
in
the
FAA
Airman's
Information
Manual, Part 1.
Avoid
flight
at low altitudes
over mountainous
terrain, particularly
near
the
lee
slopes. If the
wind
velocity near the level of the ridge is
in
excess of 25
knots
and approximately
perpendicular
to the ridge,
mountain
wave
conditions
are likely over and
near
the lee slopes. If the
wind velocity
at the level of the
ridge exceeds 50 knots, a
strong
mountain
wave
is
probable
with
extreme
up and down
drafts
and
severe
turbulence.
The
worst
turbulence
will
be
encountered
in
and
below the
rotor
zone,
which
is
March, 1981
10-33
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