page_title: Comac C919
section_title: 2017
hierarchical_section_title: Comac C919 / Development / Flight testing / 2017
caption_attribution_description: Español: COMAC - Commercial Aircraft Corporation Of China COMAC C919 Reg.: B-001C MSN: 102 Shanghai - Pudong International (PVG / ZSPD) China - December 17, 2017 Early rotation during take off on rwy 34R, the 2nd C919 is doing its first flight
context_page_description: The Comac C919 is a narrow-body twinjet airliner developed by Chinese aerospace manufacturer Comac.
  The development programme was launched in 2008. Production of the prototype began in December 2011, with the first prototype being ready on 2 November 2015 and having its maiden flight on 5 May 2017.
  Its first commercial deliveries are expected in 2021 to China Eastern Airlines.
  The aircraft, primarily constructed with aluminium alloys, is to be powered by either CFM International LEAP or ACAE CJ-1000A turbofan engines, and be able to carry 156 to 168 passengers in a normal operating configuration up to 5,555 km.
  It is intended to compete primarily with the Boeing 737 MAX and Airbus A320neo.
  As of 31 August 2018, Comac has 1008 commitments including 305 firm orders, mostly from Chinese leasing companies or airlines.
context_section_description: High-speed taxi tests were completed in April 2017 and the first flight took place on 5 May 2017. At the time, Comac had a planned test programme of 4,200 flight hours and introduction to service in 2020. It was estimated that this could be delayed into 2021.
  The European Aviation Safety Agency is intended to validate the Chinese type certificate.
  The 4,200 hours of testing planned were higher than the 3,000 hours typically required for the Airbus or Boeing narrowbodies, but lower than the 5,000 hours needed for the ARJ21.
  Comac had its second prototype ready on 28 July 2017, aiming to fly it within the year for engine, APU, fuel system and extreme weather tests.
  The flight-test plan included six aircraft.
  On 28 September, it made its second flight at 10,000 ft (3,000 m), which lasted 2 hours 46 minutes, although it was supposed to last one more hour.
  The five-month delay between first and second flights, while the second prototype was being ground-tested, was extraordinary: in 2013 the Airbus A350 flew again after five days and in 2015 the troubled Mitsubishi MRJ flew again after eight days.
  On 3 November, it made its third flight in 3h 45min, reaching 3,000 m (9,800 ft).
  It was transferred on 10 November from Shanghai to Xian to continue its flight test program, a 2h 24min, 1,300 km (700 nmi) flight reaching 7,800 m (25,600 ft) and Mach 0.74 (825 km/h; 445 kn).
  The second prototype made its first flight on 17 December 2017.
  The flight test program allocated the first three prototypes for aircraft performance and engine and power systems testing,
  the fourth prototype for avionics and electrical system, and
  the fifth and sixth prototypes for passenger facilities, including the cabin and information system.
caption: The second prototype first flight on 17 December 2017
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