Slowly Loading Two Wrap Prusiks

This is a two wrap prusik made from 8 mm PMI accessory cord on 11 mm PMI EZ Bend rope. This was one of the samples observed during our research into prusik strengths on rope. For the full paper and all the data see the International Technical Rescue Symposium web page at:
itrsonline.org/
Or visit the SARRR research archive web page at:
sarrr.weebly.co...

[@kruxltdaseguridadenalturas1943]

How many kn are needed to slip the knot?