Sep 4, 2013
© 2017, Roadracing World Publishing, Inc.
From a press release
issued by Alpinestars
FIM MotoGP World Championship: Graphical data from Marc Marquez's crash during the warm-up session September 1 at Silverstone, courtesy of Alpinestars.
– Marc Marquez: MotoGP Warm Up: Silverstone – 1st September 2013 – Between turns 7 & 8
The trace graph shows the energy pattern of the data streamed by the upper body sensors in the Tech Air airbag suit. A change in the strength of the signals is noticeable at the first indication of a loss of control when the energy trace causes the Tech Air system to deploy the airbags 0.168 seconds before the initial impact to Marc’s left shoulder. Full inflation was recorded at 0.048 seconds after deployment ensuring the protection was in place 0.055 seconds before impact.
The peak energy force in this accident was 22.55g and was largely concentrated on the left shoulder which can be seen by the continuous activity in the data trace. The airbag remained fully inflated throughout the duration of the crash ensuring that the maximum amount of energy was absorbed.