T4 Joins Flight Test


The fourth Gulfstream G500 flight-test aircraft, known as T4, recently joined the flight-test program, officially making its debut in the skies over Savannah, Georgia, on February 20.

The fourth Gulfstream G500 flight-test aircraft, known as T4, recently joined the flight-test program, officially making its debut in the skies over Savannah, Georgia, on February 20.

The aircraft flew for 3 hours and 17 minutes and reached a maximum speed of Mach 0.925 with Flight Test pilots Eric Holmberg and Brian Dickerson at the controls. Flight Test engineers Dominic Pompeo and Mark Mondt were on board to provide test and data analysis.

Beyond confirming the continued progress of the G500 program, the premiere flight of T4 marks the first time that Gulfstream has integrated a team of Product Support maintenance technicians with the Flight Test team to follow the aircraft through manufacturing and flight testing.

The integrated team will continue to lead T4 through testing in support of Federal Aviation Administration type certification in 2017.

One of five G500 aircraft involved in the flight-test program, T4 will be used to test avionics, flammable fluid drainage, water ingestion and select systems (water/waste, lighting, fire protection). It will also perform flight standardization and operations evaluations.