Avionics Maintenance

Cockpit Presentation

Various furnishings and equipment are fitted in the cockpit for the comfort, convenience and safety of the occupants - Captain, 1st Officer, 3rd Occupant and 4th Occupant.
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Overhead Panel

Overhead Panel is divided in to two main sections:

- A FWD section including the system panels.

- An AFT section mainly comprising the C/B panel.

Glareshield

The Flight Control Unit (FCU) is located on the glareshield. The "Master Caution" and "Master Warning" lights are also located on the glareshield.

Main Instrument Panel

Two of them are dedicated to ECAM (Electronic Centralized Aircraft Monitoring). The others are two Primary Flight Displays and two Navigation Displays. Stand-by instruments and landing gear controls are also located on the main instrument panel.

Center Pedestal

The main control panels are:

- Thrust levers and Thrust reverser levers, Pitch trim wheels, Engine panel
- Speed brake control, Flaps slats control, Parking brakes control, Rudder trim, Printer, Data loader(MDDU)
- MCDUs, RMPs, ACPs, WXR radar control, ATC, Switching, ECAM control

Side Consoles

Side consoles provide documentation stowage, oxygen masks (Quick Donning Masks) and communication devices.

The A320 series has two variants, the A320-100 and A320-200. Only 21 A320-100s were ever produced; these aircraft, the first to be manufactured, were delivered only to Air Inter (an airline later acquired by Air France) and British Airways (as a result of an order from British Caledonian Airways made prior to its acquisition by British Airways). The A320-200 features wingtip fences and increased fuel capacity over the A320-100 for increased range; other than that differences are minimal. The last 5 A320-100 aircraft, operated by British Airways, were disposed of at the end of 2007. JetBlue has the largest fleet of A320 aircraft in the world.

Typical range with 150 passengers for the A320-200 is about 2,900 nautical miles (5,400 km). It is powered by two CFMI CFM56-5 or IAE V2500 with thrust ratings between 25,500 to 27,000 pounds force (113 kN to 120 kN).

Technically, the name "A320" only refers to the original mid-sized aircraft, but it is often informally used to indicate any of the A318/A319/A320/A321 family. All variants are able to be ETOPS (Extended-range Twin-engine Operational Performance Standards) certified

The direct Boeing competitor is the 737-800.

Technology used in the A320 includes:

The first fully digital fly-by-wire flight control system in a civil airliner, see A320 flight control.
Fully glass cockpit rather than the hybrid versions found in aircraft such as the A310, Boeing 757 and Boeing 767.

The first narrow body airliner with a significant amount of the structure made from composites.
The ECAM (Electronic Centralized Aircraft Monitoring) concept, which is included in all Airbus aircraft produced after the A320. This system constantly displays information concerning the aircraft's engines, as well as other key systems such as flight controls, pneumatics and hydraulics, to the pilots on the two LCD displays in the centre of the flightdeck. ECAM also provides automatic warning of system failures and displays an electronic checklist to assist in handling the failure.
Airbus recently started installing LCD (liquid crystal display) units in the flight deck of its new A318, A319, A320, and A321 flight decks instead of the original CRT (cathode ray tube) displays. These include the main displays and the backup artificial horizon, which was an analogue display prior to this. LCDs weigh less and produce less heat than CRT displays; this change saves around 50 kilograms on the plane's total weight.
Even though the A320 family is technologically advanced, some of the computers at the heart of the fly-by-wire system are built around CPUs roughly equivalent to the Intel 8086. While these chips may not offer anywhere near the performance of modern processors, especially on Personal Computers or servers, they are generally stable and reliable.

Specifications:

Measurement	A318-100	A319-100	A320-200	A321-200
Cockpit crew	Two
Seating capacity	117 (1-class) 100 (2-class)	156 (1-class) 124 (2-class)	180 (1-class) 148 (2-class)	220 (1-class) 185 (2-class)
Length	31.45 metres (103 ft 2 in)	33.84 metres (111 ft 0 in)	37.57 metres (123 ft 3 in)	44.51 metres (146 ft 0 in)
Wingspan	34.10 metres (111 ft 11 in)
Wing area	122.6 square metres (1,320 sq ft)
Wing Sweepback	25 degrees
Height	12.56 metres (41 ft 2 in)	11.76 metres (38 ft 7 in)
Cabin Width	3.70 metres (12 ft 2 in)
Fuselage Width	3.95 metres (13 ft 0 in)
Typical empty weight	39,300 kilograms (87,000 lb)	40,600 kilograms (90,000 lb)	42,400 kilograms (93,000 lb)	48,200 kilograms (106,000 lb)
Maximum take-off weight	68,000 kilograms (150,000 lb)	75,500 kilograms (166,000 lb)	77,000 kilograms (170,000 lb)	93,500 kilograms (206,000 lb)
Cruising speed	Mach 0.78
Max. speed	Mach 0.82
Take off run at MTOW	1,355 metres (4,450 ft)	1,950 metres (6,400 ft)	2,090 metres (6,900 ft)	2,180 metres (7,200 ft)
Range fully loaded	3,250 nautical miles (6,020 km; 3,740 mi)	3,700 nautical miles (6,900 km; 4,300 mi)	3,000 nautical miles (5,600 km; 3,500 mi)	3,000 nautical miles (5,600 km; 3,500 mi)
Max. fuel capacity	23,860 litres (5,250 imp gal; 6,300 US gal)	29,840 litres (6,560 imp gal; 7,880 US gal)	29,680 litres (6,530 imp gal; 7,840 US gal)
Service Ceiling	12,000 metres (39,000 ft)
Engines	2 × PW6122A 2 × CFM56-5	2 × IAE V2500 2 × CFM56-5

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