Gulfstream G250 Completes Aircraft Natural Icing Tests


  Bookmark and Share

Gulfstream G250 Completes Aircraft Natural Icing Tests

By Daniel Baxter

March 23, 2011 – Gulfstream Aerospace second Gulfstream G250 flight test aircraft successfully completed natural icing tests, bringing the large-cabin, mid-range aircraft several steps closer to its certification later this year by the Federal Aviation Administration and the Civil Aviation Authority of Israel. 

Serial Number (S/N) 2002 left its home base in Israel last month, crossed the Atlantic and landed in Smryna, Tennessee, where it spent several weeks flying to the Great Lakes region to hunt for natural icing conditions aloft. 

The G250 successfully completed the test points required for certification, including allowing ice to build up on the aircraft’s unprotected surfaces and then verifying the aircraft’s stability and control characteristics, as well as evaluating the ice protection systems and the tolerance of the aircraft after being exposed to icing conditions for 45 minutes.

“The G250 performed exceptionally well,” said Pres Henne, senior vice president, Programs, Engineering and Test, Gulfstream. “During one particular flight, the crew encountered icing concentrations in excess of the regulatory design envelope. The aircraft remained in this condition for an equivalent icing exposure time of more than 50 minutes to allow adequate accumulation of ice. Despite the extremely demanding conditions and ice accumulation on all untreated surfaces, the aircraft performed flawlessly." 

The anti-ice system on the leading edge of the G250 wing was adapted from large-cabin Gulfstream aircraft. Heated bleed air from the engines is routed to the leading edges to prevent ice formation. S/N 2002 will now undergo overnight cold-soak trials, having completed a similar test in Finland. The aircraft has also completed hot-weather testing on the coast of the Red Sea. 

S/N 2003 has started function and reliability testing in Israel, where the G250 is manufactured in cooperation with Israel Aerospace Industries (IAI). Function and reliability tests demonstrate that the aircraft, its components and its systems consistently operate as expected. Reaching this point is considered a major milestone toward certification.  

With flight test well under way, manufacturing continues for the first production aircraft, S/N 2004. The empennage and wing have been joined to the fuselage, and installation of the aircraft’s systems has begun.


Component-level fatigue testing on the main landing gear and rudder continues, while the full-up fatigue test article, S/N 1999, proceeds with preparation for testing over 40,000 cycles. The three aircraft in the flight-test program have already accrued more than 955 hours in 324 flights. Since 2005 Gulfstream has been working on a follow-up aircraft, the G250, which was launched in 2008, with major improvements, like new glass cockpit and engines, bigger wing, heated leading edges, and other refinements. 


The G250 is a derivative of the G200, with many improvements, among them increased cabin length, new engine HTF7250G, new T-tail, wing bleed anti-ice, cabin with 4 more windows and access from it to the baggage compartment. It will compete against the Hawker 4000, Bombardier Challenger 300 and the planned Embraer Legacy 500. The fuselage, empenage and landing gear will be manufactured by IAI, the wing by Spirit AeroSystems, while the final assembly will be performed by Gulfstream

The first G250 has its maiden flight on December 11, 2009 from Tel Aviv, Israel. The second G250 first flew on March 25, 2010. With this flight, the two G250s have completed over 72 hours of flight testing. The G250 is planned to receive type certification in 2011, then enter service shortly afterwards.

Other News Stories (For the latest news please checkout our home page)


Home Aviation News Aviation Stories Of Interest FAA Exam Upcoming Events Links To Other Sites General Aviation Helicopters Medical Factors Facing Pilots
Maintenance and Aircraft Mechanics Hot Air Balloon Aviation Training Handbooks Read Online Aviation History Legal Issues In Aviation Sea Planes Editorials
 ©AvStop Online Magazine                                                                 Contact Us                                                  Return To News                                          Bookmark and Share


AvStop Aviation News and Resource Online Magazine

Grab this Headline Animator