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February 9, 2011 - The Gulfstream G250 flight-test aircraft have completed several ice-test certification points in anticipation of the aircraft’s certification later this year. Serial Number (S/N) 2001, the first aircraft to join the flight-test program on Dec. 11, 2009, has flown with simulated ice shapes applied to the non-heated areas of the aircraft, including the nose, tail, winglets and engine pylon. These tests were used to evaluate the aircraft’s handling, stability and control characteristics in icing conditions.
S/N 2002, which joined the flight-test program on March
24, 2010, has completed anti-ice system dry-air testing,
clearing the way for certification flight testing into
known icing conditions. The aircraft is poised to visit
the |
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The G250 uses an anti-ice system similar to Gulfstream’s large-cabin aircraft. Heated bleed air from the engines is routed to the leading edges to prevent ice formation. The three aircraft in the flight-test campaign have completed more than 220 test flights, spending more than 700 hours in the air. The longest flight was more than seven hours. The maximum speed achieved was Mach 0.85, and the maximum altitude was 45,000 feet (13,800 m). On Dec. 9, 2010, all three flight-test aircraft flew simultaneously for the first time. Since its first flight on Dec. 11, 2009, S/N 2001 has confirmed a wide range of data, including minimum control air speeds, initial cruise performance and flight-control system/ flight-control law performance. Additionally, S/N 2002 has undergone certification for smoke evacuation, auxiliary power unit (APU) electrical loads, fuel system functionality, the cabin pressure control system (CPCS), overall aircraft loads and stall characteristics with different centers of gravity.
S/N 2003,
the last aircraft to join the flight-test program, has undergone
avionics certification testing and numerous systems checks.
Additionally, S/N 2003 made its first trans-Atlantic crossing in
support of the National Business Aviation Association (NBAA)
Conference and Exhibition in |