at the end of May 2018 covering 100,300 nmi in 69 flights, along known icing flight and high-elevation certification tests: the five flight-test G500s made 1,355 flights in 4,955 hours. On July 20, 2018, Gulfstream announced it received both its type certification and production certificate from the FAA, before first delivery in the fourth quarter. As nacelle supplier Nordam filed for bankruptcy on 23 July, initial deliveries will be slowed. Certification allowed the EFVS to provide the only visual cues for landing down to runway visual range, to touchdown and rollout, after 50 test approaches, and testing to lower visibilities could allow dropping the limit. The first G500 was delivered on September 27, 2018. On October 1, Gulfstream announced the acquisition of the nacelle manufacturing line from Nordam. In 2022, its equipped price was $49.5M. G600 The longer G600 had its first flight at Savannah/Hilton Head International Airport on December 17, 2016. Four flight-test aircraft and a production G600 will be used for the test program for a scheduled 2018 introduction: T1, which flew 311 hours in five months, will test brakes development, flying qualities, stall speeds, air data and RVSM; T2, which has 52 flight hours in two months, will focus on loads, climb performance, flyover noise and function and reliability testing; T3 first flew on May 5, 2017 and will be used for field performance, ice protection, cabin pressurization and oxygen system testing; T4 will test automatic flight control systems, avionics and the fuel system; P1, the first production G600, will test cabin systems and the production interior. In August 2017, the fifth was being outfitted for its third quarter first flight. Through August 20, the four G600s have logged 780 h in 175 flights, the longest lasting 13 h 5 min, it completed testing for initial flight envelope expansion and flying qualities, flutter, brakes, low speed or stall, loads calibration, parameter identification and climb performance, the fifth test aircraft will fly later in the quarter. For the October 2017 NBAA show, five G600s were flying as it was to be introduced in early 2019. Range for the G600 was extended by 300 nmi/556 km for both Mach 0.85 to 6,500 nmi/12,038 km and Mach 0.90 to 5,100 nmi/9,445 km. In October 2018, Mach 0.9 range was increased again to . Certification and introduction for the G600 was to happen in 2018 like for the G500. The five