"A couple of weeks ago, I took it for a BASE jump from my favourite 1200-foot cliff. I?ve attached data from the freefall portion of the jump and the first few seconds of canopy flight. The grid is 1 second on the x-axis, and 1 G on the y-axis. The black line shows total acceleration, while the coloured lines show each axis (after calibration). In the 'jump' plot, you can see clearly where I jump, at the 1 second mark, and where the canopy opens, at the 9.75 second mark, after 8.75 seconds of freefall. You can also see the point, at about 3 seconds, where wind resistance becomes significant, after which I appear to be resting on my belly on a cushion of air."