Development of the aircraft was started in the 1990s, and its maiden flight took place on 17 December 2004. The aircraft completed its certification programme on 26 February 2007. The An-148 has a maximum range of 2,100–4,400 km (1,100–2,400 nmi; 1,300–2,700 mi) and is able to carry 68–85 passengers, depending on the configuration. The Antonov An-158 is a stretched fuselage version of the aircraft, accommodating up to 100 passengers. The An-178 is a cargo variant, with a payload capacity of 15 t (15,000 kg; 33,000 lb). The An-148 aircraft is a high-wing monoplane with two turbofan jet engines mounted in pods under the wing. This arrangement protects the engines and wing structure against foreign object damage. A built-in autodiagnosis system, auxiliary power unit, and the wing configuration allow the An-148 to be used at poorly equipped airfields. Built-in entrance stairs enable boarding and disembarking the aircraft without extra ground equipment. The specifiactioins below are for the main An-174-100A model. For more details including the nine variants, click here. An-178
