Alpinestars releases Lorenzo crash data
Saturday, 29 June 2013
Alpinestars has demonstrated the g-forces and impacts suffered by Jorge Lorenzo during the crash which broke the World Champion’s left collarbone at Assen on Thursday.
The trace graph shows the g-force time series 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 start of loss of control. The movement of the bike due to loss of rear tyre grip causes a cluster of unusual spikes, getting the airbag to deploy at 0.220 seconds after the initial loss of control, corresponding to the instant when Lorenzo gets launched into the air.
The first impact on Lorenzo’s body, absorbing the initial kinetic energy of the crash, is registered for the left arm. The data trace, which was streamed by the left arm accelerometer, shows that touchdown on the track occurred 0.605 seconds after the airbag deployment. Impacts to both shoulders and torso followed.
Press release courtesy of Alpinestars
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