Beechcraft Musketeer Sport III A23-19 Pilot Operating Handbook page 246

Sectlon X
~ft
Safety lnformatlon
Single Englne (Piston)
quickly, and treats weather forecasting as professional
advice, rather than an absolute fact. He obtains all the
advice he can, but stays alert to any sign or report of chang-
ing conditions.
Plan the flight to avoid areas of reported severe turbulence.
1t
is not always possible to detect individual storm areas or
find the in-between elear areas.
The National Weather Service classifies turbulence as fol-
lows:
Class of
Turbulence
Extreme
Severe
Moderate
Lig h
t
Effect
Airplane is violently tossed about and is
practically impossible to control. May cause
structural damage.
Airplane may be momentarily out of control.
Occupants are thrown violently against the
belts and back into the seat. Unsecured
objects are tossed about.
Occupants require seat belts and occasion-
ally are thrown against the belt. Unsecured
objects move about.
Occupants may be required to use seat
belts, but objects in the airplane remain at
rest.
Thunderstorms, squall lines and vialent turhulance should
be regarded as extremely dangerous and must be avoided.
Hail and tornadic wind velocities can be encountered in
thunderstorms that can destroy any airplane, just as torna-
does destroy nearly everything in their path on the ground.
Thunderstorms also pose the possibility of a lightning strike
on an airplane. Any structure or equipment which shows
evidence of a lightning strike, or of being subjected to a high
1D-28 May, 1994