3. Install rudder lock pin through floor
mounted door, forward of pilot's seat,
ensuring rudder is in neutral position.
4. Reverse steps 1 through 3 above to
remove control lock. Store control lock.
2-101. INSTALLATION OF PROTECTIVE COVERS.
The crew will ensure that the aircraft protective
covers are installed when leaving the aircraft.
The aircraft is moored to ensure its immovability,
conditions. The following paragraphs give, in detail,
the instructions for proper mooring of the aircraft.
a. Mooring Provisions. Mooring points, Figure
2-47, are provided beneath the wings and tail.
Additional mooring cables may be attached to each
landing gear. General mooring equipment and
procedures necessary to moor the aircraft, in addition
to the following, are given in TM 1-1500-204-23.
1. Use mooring cables of 1/4 inch diameter
aircraft cable and clamp (clip-wire rope),
chain, or rope (3/ 4 inch diameter or
larger). Length of the cable or rope will be
dependent upon existing circumstances.
Allow sufficient slack in ropes, chains, or
cable to compensate for tightening action
due to moisture absorption of rope or
thermal contraction of cable or chain. Do
not use slipknots. Use bowline knots to
secure aircraft to mooring stakes.
2. Chock the wheels.
Structural damage can occur from high velocity winds;
therefore, if at all possible, the aircraft should be
moved to a safe weather area when winds above
75 knots are expected. Moored aircraft condition is
shown in Figure 2-47. If aircraft must be secured,
perform the following steps.
1. After aircraft is properly located, place
nose wheel in centered position. Point
aircraft into wind, or as nearly so as is
locations of fixed mooring rings. When
direction is considered to be satisfactory.
Locate each aircraft at slightly more than
one wing span distance from all other
aircraft. Position nose mooring point
approximately 3 to 5 feet downwind from
ground mooring anchors.
2. Deflate nose wheel shock strut to within
3/4 inch of its fully deflated position.
3. Fill all fuel tanks to capacity, if time
4. Place wheel chocks fore and aft of main
gear wheels and nose wheel. Tie each
pair of chocks together with rope or join
together with wooden cleats nailed to
chocks on either side of wheels. Tie ice
grip chocks together with rope. Use
sandbags in lieu of chocks when aircraft is
moored on steel mats. Set parking brake
5. Tie aircraft down by utilizing mooring
points shown in Figure 2-47. Make
tiedown with 1/4-inch aircraft cable using
two wire rope clips, or bolts and a chain
tested for a 3000-pound pull. Attach
tiedowns so as to remove all slack. Use a
3/4-inch or larger manila rope if cable or
chain tiedown is not available. If rope is
used for tiedown, use anti-slip knots (such
as bowline knot) rather than slip knots. In
the event tiedown rings are not available
on hard surfaced areas, move aircraft to
an area where portable tiedowns can be
used. Locate anchor rods at points shown
in Figure 2-47. When anchor kits are not
available, use metal stakes or dead-man
successfully sustain a minimum pull of
considered to be of doubtful security due
to existing soil condition, drive additional
anchor rods at nose tiedown position.
Place padded work stand or other suitable
support under the aft fuselage tiedown
position and secure.
7. Place control surfaces in locked position
and trim tab controls in neutral position.
Place wing flaps in up position.
8. The requirements for dust excluders,
protective covers, and taping of openings
will be left to the discretion of the
responsible maintenance officer or the
pilot of the transient aircraft.