Grob Aerospace has restarted the flight-test program for its SPn jet, just under three months after the November 29 crash of its second prototype. The first SPn prototype took to the air again on February 23 from the company’s headquarters at Tussenhausen-Mattsies in southern Germany.
Grob Aerospace resumed the SPn flight-test program on February 23, with acting chief test pilot Tore Reimers and flight-test engineer Alan Lawless taking to the air in prototype number one. The next prototype, number three, should fly in the second quarter, followed early this fall by number four, the first fully conforming SPn.
Hans Doll was promoted to director of customer and product support for Grob Aerospace. He was previously head of sales for Grob training aircraft. Denzil White was named director of international sales for the Grob training fleet as well as director of special mission aircraft.
The first prototype G160 Ranger, Grob-Werke’s second turboprop single, flew for the first time on March 29 from the company’s facility in Tussenhausen-Mattsies, Germany, about 60 miles from Munich.The seven-seat, Pratt & Whitney Canada PT6A-42A-powered G160 is an expansion of the four-seat G140TP, which first flew in December 2002 and is expected to obtain certification late this year.
Grob, the aerospace division of Germany’s Grob-Werke (which builds milled parts for the automobile industry), has extended its estimated certification date of the G140TP turboprop single to the first quarter of next year from late fall this year, according to Andreas Strohmayer, Grob CEO. He told AIN that static testing of the fuselage was expected to begin last month and testing of the wing would follow afterward.
Germany’s Federal Bureau of Air Accident Investigation (BFU) has provided some initial findings from its inquiry into the crash of Grob Aerospace’s second SPn jet prototype on November 29 last year. The early conclusions show that the investigators now have a fairly clear idea of how the accident happened, but they are not yet completely sure why it happened.
Grob Aerospace has restarted the flight-test program for its SPn jet, just short of three months after the crash of its second prototype on November 29. The first SPn prototype took to the air again on February 23 from the company’s headquarters at Tussenhausen-Mattsies, Germany.
Initial findings from German aviation authorities on the crash of a Grob Aerospace SPn Utility Jet prototype say flutter might have played a role in the Nov. 29, 2006 accident. According to a report from the manufacturer, the German Federal Bureau of Air Accident Investigation said that parts of the twinjet’s tail control surfaces were found some 1,300 feet from the impact site, indicating the aircraft shed them in flight.
For this year’s look in the crystal ball, AIN added a number of aircraft to the list to reflect ongoing programs more accurately. While many of these aircraft are derivative and not original certifications, they are still new and deserve to be counted.
Structural failure appears to have caused the fatal crash of the second Grob SPn prototype near the company airfield in Tussenhausen-Mattsies, Germany, on November 29. Grob Aerospace CEO Niall Olver confirmed to AIN last month that the elevators and left-hand stabilizer separated from the aircraft before impact and were found “several hundred feet” behind the main wreckage.