Fill fuel tanks to minimize condensation, remove any
accumulation of dirt and ice from the landing gear shock
struts, and install protective covers to guard against
possible collection of snow and ice.
8-49. DESERT OPERATION AND HOT WEATHER
Dust, sand, and high temperatures encountered
operational life of the aircraft and its equipment. The
abrasive characteristics of dust and sand upon turbine
blades and other moving parts of the aircraft and the
destructive effect of heat upon the aircraft instruments
will necessitate many hours of maintenance if basic
preventive measures are not followed. In flight, the
hazards of dust and sand will be difficult to escape, since
dust clouds over a desert may be found at altitudes up to
10,000 feet. During hot weather operations, the principal
temperatures (TGT) during engine starting, over-heating
of brakes, and longer takeoff and landing distances due
to the higher density altitudes encountered. In areas
where high humidity is encountered, electrical equipment
(such as communication equipment and instruments) will
be subject to malfunction by corrosion, fungi, and
moisture absorption by nonmetallic materials.
Preparation For Flight. Check the position of the
aircraft in relation to other aircraft. Propeller blown sand
can damage nearby aircraft. Check that the landing
gear shock struts are free of dust and sand. Check the
instrument panel and general interior for dust and sand
accumulation. Open main entrance door and cockpit
vent storm windows to ventilate the aircraft.
Engine Starting. Use normal procedures in
Section II. Engine starting under conditions of high
ambient temperatures may produce a higher than
normal TGT during the start. Closely monitor TGT when
the CONDITION lever is moved to the LOW IDLE
encountered, periodically move CONDITION lever to
IDLE CUTOFF position periodically during acceleration
of gas generator RPM (N1). Be prepared to abort the
start before temperature limitations are exceeded.
procedures in Section II.
Taxiing. Use normal procedures in Section II.
When practical, avoid taxiing over sandy terrain to
minimize propeller damage and engine deterioration that
results from impingement of sand and gravel. During hot
weather operation, use minimum braking action to
prevent brake overheating.
Takeoff. Use normal procedures in Section II.
Avoid taking off in the wake of another aircraft if the
runway surface is sandy or dusty.
During Flight. Use normal procedures in Section
Descent. Use normal procedures in Section II.
Landing. Use normal procedures in Section II.
Engine Shutdown. Use normal procedures in
If fuel tanks are completely filled
during hot weather, fuel expansion
may cause overflow, thereby creating
a fire hazard.
Before Leaving Aircraft. Use normal procedures
in Section II. Take extreme care to prevent sand or dust
from entering the fuel and oil system during servicing.
During hot weather, release the brakes immediately after
installing wheel chocks to prevent brake disc warpage.
Due to the comparatively light wing
critical. Since turbulence imposes
heavy loads on the aircraft structure,
aircraft attitude with the least amount
of control pressures possible to
avoid excessive loads on the aircraft
Thunderstorms and areas of severe turbulence
should be avoided. However, if such areas are to be
penetrated, it is necessary to counter rapid changes in
attitude and accept major indicated altitude variations.
Penetration should be at an altitude which provides
adequate maneuvering margins as a loss or gain of
several thousand feet of altitude may be expected. The
turbulence is 150 KIAS. Constant pitch attitude and
power settings are vital to proper flight technique.
Establish recommended penetration speed and proper
attitude prior to entering turbulent air to minimize most
instruments due to barometric pressure variations within
the storm make the instruments unreliable. Maintaining
a pre-established attitude will result in a fairly constant
airspeed. Turn cockpit and