DOC AIRBUS | AMM A320FSPOILER 3 - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The spoiler 3 is one of five spoilers which are extended or retracted for these functions:
The drive mechanism of the spoilers is electrically controlled (Ref. AMM D/O 27-90-00-00) and uses hydraulic power to extend or retract the surfaces (Ref. AMM D/O 27-64-00-00).
** ON A/C NOT FOR ALL The spoiler 3 is one of five spoilers which are extended or retracted for these functions:
Spoiler 3- roll function
- speedbrake function
- ground spoilers function.
The drive mechanism of the spoilers is electrically controlled (Ref. AMM D/O 27-90-00-00) and uses hydraulic power to extend or retract the surfaces (Ref. AMM D/O 27-64-00-00).
2. Component Description
The spoiler is a wedge-shaped structure. It has carbon fiber top and bottom skins, sides and trailing edge profile, bonded to a honeycomb core. There are four machined aluminum-alloy attachment-fittings. These are the inboard and outboard hinge brackets (with links) the center hinge and the spoiler actuator attachment-fitting. The actuator attachment-fitting installed with the center hinge. The spoiler is attached by the links and the center hinge to the mid rear spar.
A titanium alloy rubbing strip on the trailing edge of the spoiler prevents damage to the spoiler when the flaps are retracted. Seals are installed at the inboard and outboard ends and along the leading edge of the spoiler.
The spoiler is a wedge-shaped structure. It has carbon fiber top and bottom skins, sides and trailing edge profile, bonded to a honeycomb core. There are four machined aluminum-alloy attachment-fittings. These are the inboard and outboard hinge brackets (with links) the center hinge and the spoiler actuator attachment-fitting. The actuator attachment-fitting installed with the center hinge. The spoiler is attached by the links and the center hinge to the mid rear spar.
A titanium alloy rubbing strip on the trailing edge of the spoiler prevents damage to the spoiler when the flaps are retracted. Seals are installed at the inboard and outboard ends and along the leading edge of the spoiler.