SectlonX
BEECHCRAFT
Sefety
lnfonnetlon
AiResearch Engine
Maintenance
Manual
and
Hartzell Service Letter No.
104
include inspection
and maintenance
requirements
for engines and
propellers involved
in
lightning strike incidents.
A
roll cloud ahead
of
a squall line or thunderstorm
is
visible evidence of violent turbulence: however. the
absence
of_
a roll cloud should not be interpreted as
denoting that severe turbulence is not present.
Even though flight
in
severe turbulence must be
avoided, flight
in
turbulent air may be encountered
unexpectedly
under
certain
conditions.
The following recommendations should be observed
for airplane operation
in
turbulent air:
Flying through turbulent air presents two basic
problems. the answer to both
of
which
is
proper
airspeed.
On one hand. if you maintain an excessive
airspeed, you run the risk
of
structural damage
or
failure; on the other hand. if your airspeed
is
too
low. you may stall.
lf turbulence is encountered. reduce speed to the
turbulent air penetration speed, if given,
or
to the
maneuvering
speed.
which
is
listed
in
the
Limitations
Section
of
the Information Manual.
These speeds give the best assurance
of
avoiding
10-24 March, 1981
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