747-400 AMM 飞机维护手册 机翼 WINGS(59)

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 1.  General (Fig. 1)_______
 A.  The wing flight control surfaces consist of ailerons, trailing edge flaps, leading edge Krueger flaps, leading edge variable camber flaps, and spoilers.
 B.  The ailerons are primary flight control surfaces, and, in conjunction with the spoilers, provide lateral control of the airplane. Each wing has an inboard and an outboard aileron, which are hinged from support ribs attached to the wing rear spar or trailing edge beam (Ref 57-51-00 D&O).
 C.  The trailing edge flaps are auxiliary flight control surfaces. Each wing has triple-slotted, inboard and outboard trailing edge flaps consisting of three separate sections; the fore flap, the midflap, and the aftflap (Ref 57-52-00 D&O).
 D.  The Krueger flaps are auxiliary flight control surfaces. The leading edge of each wing has three Krueger flaps located inboard of the inboard nacelle (Ref 57-54-00 D&O).
 E.  The 11 leading edge variable camber flaps are auxiliary flight control surfaces. Five flaps are located between the inboard and outboard nacelles and six outboard of the outboard nacelle (Ref 57-55-00 D&O).
 F.  Five flight spoilers and one ground spoiler are installed in the upper surface of the trailing edge structure of each wing. Four of the flight spoilers are installed in a group between the engine nacelles and one flight spoiler is installed adjacent to the ground spoiler inboard of the inboard nacelle. The flight spoilers serve as auxiliary flight control surfaces in conjunction with the ailerons to provide airplane lateral control and serve as speed brakes both in flight and after touchdown. The ground spoilers provide additional speed braking after touchdown (Ref 57-57-00 D&O).
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 57-50-00
 ALL  ú ú 01 Page 1 ú Jun 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

LEADING EDGE

AILERON
Flight Control Surfaces
Figure 1

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 57-50-00
 ALL  ú ú 01 Page 2 ú Jun 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 AILERONS - DESCRIPTION AND OPERATION
____________________________________
 1.  General_______
 A.  The two aileron control surfaces on each side of the wing provide the primary lateral control of the airplane during flight. Both surfaces are positioned by individual hydraulic power packages attached to fittings on the aileron front spars. Attachment of the ailerons is to the wing trailing edge hinge support ribs.
 2.  Inboard Aileron_______________
 A.  The inboard ailerons are located in the wing trailing edge directly aft of the inboard engine nacelle. Width is 69.5 inches; length of the inboard side is slightly less than that and the outboard side is approximately 92.0 inches including the leading edge.
 B.  The trailing edge and the inspar skins are of fiberglass fabric reinforced honeycomb sandwich panels. The remaining structure consists of aluminum ribs and spars and aluminum nose skins.
 3.  Outboard Aileron________________
 A.  The outboard aileron is located outboard of the outboard engine nacelle. Overall length of the aileron is 331.4 inches.
 B.  The trailing edge is of fiberglass reinforced honeycomb sandwich and the structure forward is of aluminum ribs and spar with inspar panels also of the foregoing sandwich material.
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 57-51-00
 ALL  ú ú 01 Page 1 ú Jun 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 INBOARD AILERONS - DESCRIPTION AND OPERATION
____________________________________________
 1.  General (Fig. 1)_______
 A.  The inboard ailerons, located in the wing trailing edge area aft of the inboard engine nacelle struts, function as primary lateral control surfaces during all phases of flight. Each aileron is supported by two primary and two fail-safe hinge fittings installed on the aileron front spar. These fittings are attached to wing trailing edge hinge support rib fittings by pin joints.
　
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