Graphic
They've used an algorithm to fit their curve to those points, but essentially you've got 8 sec of VS approaching -6,000; then 6 sec of VS approaching +4,000; then 8 sec of VS approaching -7,000; then 5 sec of VS approaching +8,000; and the data ends.
In that last oscillation the VS changes neg to pos by about 15,000 fpm (250 feet per sec) in 6 seconds.
A G-meter would show oscillations between about -.5 and +2.5 under those circumstances.
Last edited by thcrozier; 31st Oct 2015 at 17:57.