Originally Posted by
Duchess_Driver
Three bands, based on AGL.
Below 500’ (600’ G5 and up) no point as it is unlikely to deploy fully/properly in time.
Below 2000, don’t take too long to think about it.
Above 2000 assess and deploy as appropriate. Recommended that when not within gliding distance of a suitable landing strip.
Parachute deployment speed circa 133kt depending on model.
There have been several successful deployments at IAS above 133 including a couple above 180 KTS. Current advice is to pull even if above 133. The only known case of the chute pulling off the plane was at above 350 KTS in an uncontrolled descent following a severe icing encounter.