Section X
BEECHCRAFT
Safety Information
usually 8 to
10
miles downwind from the ridge. This
zone
is
sometimes characterized by the presence
of
"roll
clouds"
if
sufficient
moisture is present;
altocumulus
standing
lenticular
clouds
are
also
visible signs that a mountain wave exists, but their
presence
is
likewise
dependent
on
moisture.
Mountain wave turbulence can.
of
course,
occur
in
dry air and the absence
of
such clouds should not be
taken
as
any
assurance
that
mountain
wave
turbulence will not
be
encountered. A
mountain
wave downdraft may exceed the climb capability
of
your airplane. Avoid mountain wave downdrafts.
VFR
-
LOW
CEIUNGS
lf
you are not instrument rated. do not attempt
"VFR
on
Top"
or
"Special
VFR"
flight
or
clearances. Being caught above a solid cloud layer
when
an
emergency
descent
is required (or at
destination)
is
an
extremely hazardous position for
the
VFR pilot. Accepting a clearance out
of
certain
airport control zones with no minimum ceiling and
one-mile visibility as permitted with
"Special
VFR"
is
a foolish practice for the VFR pilot.
Avoid areas
of
low ceilings and restricted visibility
unless you are instrument rated and proficient and
have an instrument equipped airplane. Then
proceed
with caution and with planned alternates.
10-34
March, 1981
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