GULFSTREAM HAS completed static testing of the Gulfstream V long-range business jet. The test airframe, is now being refurbished for use as a demonstrator aircraft and is scheduled to be displayed at the US National Business Aircraft Association convention in Orlando, Florida, in November, equipped with a full interior.
The manufacturer says that static testing for US and European certification was completed in 16 weeks, two weeks ahead of schedule. The static-tests included checking aileron and spoiler operation at maximum upwards and down-wards wing-deflection, as well as pressurisation proof-testing at 167% of the GV's increased design cabin-pressure differential.
Data were collected from more than 2,060 strain gauges. Loads were applied using 56 computer-controlled actuators, via cables attached to 650 stress points on the fuselage. Refurbishment requires removal of the cable-attachment blocks, which were glued to the GV airframe.
Gulfstream says that flight-testing of two GVs continues, with demonstrated manoeuvre margins at high altitudes exceeding its predictions. The aircraft has been banked 45¡ at 51,000ft (15,550m) without buffet, according to the manufacturer.
Source: Flight International
