You raised my curiosity!

 

BRS's web site quotes 15-28 FPS (900-1680 FPM) as the descent rate at rated weight of the canopy at 5,000 feet density altitude.  They also say that at 21 FPS the impact is equivalent to jumping from a 7 foot height and that the landing gear and the seat will absorb most of the impact.  I'm sure the new 26G seats are a factor in the survivability of a ~1,500 FPM THUD!

 

Mike Easley

 

PS  It also appears that in certified installations, the canopies are rated at the aircraft's VNE.