5 ms·

huh? interesting, do you have more info, I love reading stuff like this. I don't know much about the Gripen but it is my all time favorite after the F-16. Off

huh? interesting, do you have more info, I love reading stuff like this. I don't know much about the Gripen but it is my all time favorite after the F-16. Off topic but here's a neat youtube video of Gripen jets undergoing rapid turn-around, on a normal street road with just a handful of people, and special tools for the crew: https://www.youtube.com/watch?v=49L9BlYQSjw https://www.youtube.com/watch?v=49L9BlYQSjw

mongol 7y ago
The first crash: https://www.youtube.com/watch?v=k6yVU_yYtEc https://www.youtube.com/watch?v=k6yVU_yYtEc Second crash (over middle of Stockholm) https://youtu.be/mkgShfxTzmo?t=133 https://youtu.be/mkgShfxTzmo?t=133 From Wikipedia: During the test programme, concern surfaced about the aircraft's avionics, specifically the fly-by-wire flight control system (FCS), and the relaxed stability design. On 2 February 1989, this issue led to the crash of the prototype during an attempted landing at Linköping; the test pilot Lars Rådeström walked away with a broken elbow. The cause of the crash was identified as pilot-induced oscillation, caused by problems with the FCS's pitch-control routine.[22][33][34] In response to the crash Saab and US firm Calspan introduced software modifications to the aircraft. A modified Lockheed NT-33A was used to test these improvements, which allowed flight testing to resume 15 months after the accident. On 8 August 1993, production aircraft 39102 was destroyed in an accident during an aerial display in Stockholm. Test pilot Rådeström lost control of the aircraft during a roll at low altitude when the aircraft stalled, forcing him to eject. Saab later found the problem was high amplification of the pilot's quick and significant stick command inputs. The ensuing investigation and flaw correction delayed test flying by several months, resuming in December 1993.[22]
- scrape_it 7y ago
  can't believe the first one didn't result in a ball of fire... the second was even more shocking, all of a sudden it looked like he was trying a Cobra maneuver until he ejected! that's insane.

mongol 7y ago

The first crash: https://www.youtube.com/watch?v=k6yVU_yYtEc https://www.youtube.com/watch?v=k6yVU_yYtEc Second crash (over middle of Stockholm) https://youtu.be/mkgShfxTzmo?t=133 https://youtu.be/mkgShfxTzmo?t=133 From Wikipedia: During the test programme, concern surfaced about the aircraft's avionics, specifically the fly-by-wire flight control system (FCS), and the relaxed stability design. On 2 February 1989, this issue led to the crash of the prototype during an attempted landing at Linköping; the test pilot Lars Rådeström walked away with a broken elbow. The cause of the crash was identified as pilot-induced oscillation, caused by problems with the FCS's pitch-control routine.[22][33][34] In response to the crash Saab and US firm Calspan introduced software modifications to the aircraft. A modified Lockheed NT-33A was used to test these improvements, which allowed flight testing to resume 15 months after the accident. On 8 August 1993, production aircraft 39102 was destroyed in an accident during an aerial display in Stockholm. Test pilot Rådeström lost control of the aircraft during a roll at low altitude when the aircraft stalled, forcing him to eject. Saab later found the problem was high amplification of the pilot's quick and significant stick command inputs. The ensuing investigation and flaw correction delayed test flying by several months, resuming in December 1993.[22]

scrape_it 7y ago
can't believe the first one didn't result in a ball of fire... the second was even more shocking, all of a sudden it looked like he was trying a Cobra maneuver until he ejected! that's insane.