The A319 is a shortened, minimum-change version of the A320. Also known as the A320M-7 (A320 "minus seven frames"), it is 3.73 metres (12 ft 3 in) shorter than the A320; four frames fore of the wing and three frames aft of the wing were removed. This allows the number of emergency exits to be reduced to six. With virtually the same fuel capacity as the A320-200, and fewer passengers, the range with 124 passengers in a two-class configuration extends to 6,650 km (3,590 nmi), or 6,850 km (3,700 nmi) with the "Sharklets".^[55] Four propulsion options available on the A319 are the 23,040-pound-force (102.5 kN) V2522-A5 and 24,800-pound-force (110 kN) V2527M-A5 from IAE, or the 22,000-pound-force (98 kN) CFM56-5B/A and 27,000-pound-force (120 kN) CFM56-5B7.^[58] Although identical to those of the A320, these engines are derated because of the A319's lower MTOW.

The A319 was developed at the request of Steven Udvar-Hazy, the former president and CEO of ILFC according to The New York Times.  The A319's launch customer, in fact, was ILFC, which had placed an order for 6 A319s by 1993.  Anticipating further orders by Swissair and Alitalia, Airbus decided to launch the programme on 10 June 1993. Final assembly of the first A319 began on 23 March 1995.

The A319 has proved popular with airlines, specifically low-cost carriers (LCC). British LCC EasyJet purchased the A319, and A320, to partially replace and augment its Boeing 737 fleet.

A319CJ

The A319CJ is the corporate jet version of the A319. It incorporates removable extra fuel tanks which are installed in the cargo compartment, and an increased service ceiling of 41,000 feet (12,000 m).  Range with 8 passengers' payload and the standard four auxiliary fuel tanks is 6,000 nautical miles (11,100 km). Upon resale the aircraft can be reconfigured as a standard A319 by removing its extra tanks and corporate cabin outfit, thus maximising its resale value. It is also known as the ACJ, or Airbus Corporate Jet. Producer is Airbus Executive and Private Aviation, it is a part of Airbus S.A.S., an EADS company.

The aircraft seats up to 39 passengers but may be outfitted by the customers into any configuration. DC Aviation and Reliance Industries are among its users. The A319CJ competes with other corporate jets such as the Gulfstream V, the Boeing 737–700-based Boeing Business Jet (BBJ), and Bombardier's Global Express. It is powered by the same engine types as the A320.

The A319CJ is used by the Escadron de transport, d'entraînement et de calibrage which is in charge of transportation for France's officials and also by the Flugbereitschaft of the German Air Force for transportation of Germany's officials. An ACJ serves as a presidential or official aircraft of Armenia, Azerbaijan, Brazil, Bulgaria, Czech Republic, France, Germany, Italy, Malaysia, Thailand, Turkey, Ukraine and Venezuela.

Source: Wikipedia