These are not hard numbers. The velocity can vary quite a bit in free fall and depending on parachute state when tangled I'm sure that can greatly vary as well.

These are not hard numbers. The velocity can vary quite a bit in free fall and depending on parachute state when tangled I'm sure that can greatly vary as well. But yes, a partial deploy will slow you down somewhat. And mildly related there's this website about free fall survival that I find fascinating: https://www.greenharbor.com/fffolder/ffresearch.html https://www.greenharbor.com/fffolder/ffresearch.html