Systems Guide

Aerosoft

Airbus A320/A321

SYSTEMS

Systems guide

Vol

04-03-53

28 October 2014

NOSEWHEEL STEERING

The nosewheel can be steered using the rudder pedals and the steering handwheels (not simulated). Nosewheel

steering is available when:

 The A/SKID & N/W STRG controls are activated

 At least one engine is running

 Aircraft speed is under 130 knots

 Aircraft is on ground

 Green hydraulic pressure is available

MAIN WHEEL BRAKES

The brakes are operated by the brake pedals or the autobrake system via the Green hydraulic system.

Temperature sensors in each main wheel display the temperature on the ECAM WHEELS page. Takeoff is not

allowed before the brakes are below 300°C.

ANTI-SKID

The anti-skid system operates when wheel skid is detected and will provide maximum brake efficiency. The

system is always active, when running from an alternate source it might not be available.

AUTOBRAKES

The autobrake system has three settings. LOW, MED or MAX selected by pbs. ON will show on the selected

setting. When the aircraft is close to the selected rate a green DECEL will show. Pressing the illuminated pb

deactivates the system. Green hydraulic pressure has to be available and the A/SKID & NW STRG needs to be

active. The brakes are activated by spoiler extension.

BRAKE-FAN

The brake fans provide additional cooling when the brakes are overheating (amber temperature displayed).

Activate them during taxi.

LANDING GEAR LEVER AND INDICATOR PANEL

The landing gear lever controls extension and retraction. The three indicator lights will be off when the gear is up

and show red UNLK when the gear is in transit. Three green triangles will show the gear is down and locked. Next

to the gear lever is a red arrow that will light when the gear is not extended and the aircraft is in landing

configuration. When the two-position Gear Lever is moved and speed is below 260 knots

 Landing gear doors open,

 Gear will move to the new position

 All doors close

ECAM WHEEL PAGE

The ECAM WHEEL page shows indications for landing gear, brakes and anti-skid system. It is show automatic on

the ground with engine running before takeoff and in flight when gear is commanded, in case of any abnormal

indications.