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 C.  When you point the airplane directly into the wind, and the airplane is in the correct configuration, it will be resistant to 135-knot winds.
 D.  On a dry surface, with the airplane at maximum taxi weight, the airplane can be resistant to side winds that are 100-knots or less (Fig. 201).
 E.  On a wet surface, with the airplane at maximum taxi weight, the airplane can be resistant to side winds that are 90-knots or less (Fig. 201).
 TASK 10-11-03-862-001
 2.  Prepare the Airplane to be Parked in High Winds - Correct Configuration________________________________________________________________________
 A.  Special Tools and Equipment
 (1)
G27008-3 Ground Lock, Rudder (Lower)

 (2)
G27008-17 Ground Lock, Rudder (Upper)

 (3)
TE65B00184-1 Ground Lock, Inboard Elevator

 (4)
3ME65B05730-1 Ground Lock, Outboard Elevator (Left)

 (5)
3ME65B05730-2 Lock Assembly - Outboard Elevator (Right)

 (6)
6ME65B02200-1 Ground Lock, Inboard Aileron

 (7)
6ME65B02100-1 Ground Lock, Outboard Aileron

 B.  Standard Tools and Equipment
 (1) Ballast (Engine Substitute)
 C.  References
 (1)
10-11-01/201, Parking (Normal)

 (2)
12-11-01/301, Fuel Tank Servicing

 (3)
27-51-00/201, Trailing Edge Flap System

 (4)
27-81-00/201, Leading Edge Flap System

 (5)
29-11-00/201, Main Hydraulic System

 (6)
71-00-02/401, Power Plant

 D.  Procedure
 S 862-002
 WARNING: REMOVE THE LOCKOUT PIN FOR THE NOSE GEAR STEERING BEFORE YOU
_______ DISENGAGE THE TOW BAR AND TUG. YOU MUST DO THIS TO PREVENT THE AIRPLANE FROM SWINGING IN THE WIND. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
 (1) Park the airplane (Ref 10-11-01/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
 (2)  S 492-003Install the inlet plugs and the covers.
 (3)  S 862-004Move the leading and the trailing edge flaps to the FLAP UP position to decrease lift (Ref 27-51-00/201, 27-81-00/201).
 (4)  S 862-005Move the trim position indicator on the control stand to 3 units.
 NOTE:____ This will move the stabilizer leading edge to horizontal position.
 (5)  S 492-006If you remove the power control units for the flight control surfaces, install the ground locks on the control surfaces.
 (6)  S 862-008Make sure the airplane gross weight and center of gravity (cg) is correct for the anticipated wind gust velocity and ramp surface condition (Fig. 201):
 NOTE:____ You can get this load with different configurations. Use different configurations of fuel in the main and the center wing section tanks, and ballast in the lower cargo hold. Use the Weight and Balance Manual to calculate the correct loads necessary to get the specified airplane weight and balance condition.
 (a)  Locate points on the graph for a maximum weight airplane at maximum and minimum CG for your tire-to-ground friction conditions.
 NOTE:____ Unless other friction data is available, use the friction coefficient at the lower end of the icy, wet or dry ranges.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  
Interpolate between the two CG's to determine the wind speed for a maximum weight airplane at your CG, friction coefficient and brake conditions.

 (c)  
Locate points on the graph for a minimum weight airplane at maximum and minimum CG for your tire-to-ground friction conditions.

 (d)  
Interpolate between the two CG's to determine the wind speed for a minimum weight airplane at your CG, friction coefficient and brake conditions.

 (e)  
Use the weight of your airplane to interpolate wind speed between maximum and minimum airplane weight wind speeds at your CG, friction coefficient and brake conditions.
　
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