So 42 ft/sec is approx. 2500 ft/min, to be able to walk away from that is impressive, we had a Black Hawk crew here in Australia stuff up on a night approach many years ago to a FARP , impacted the PSP matting at about 500ft/min made three large dents in the mating , bounced into the air and spun around, landed refuelled and took off, we weren't told about it by the crew but the refuellers told us the next day when we inspected all the machines we had on Ex one had the dust pushed about half way up the upper main struts, , the tail strut upper part just bottomed , when we questioned the crew they admitted they did it and stuffed up big time, aircraft was inspected for heavy landing, nothing found and cleared to fly , anything other than a Black Hawk we would have had a smouldering pile at the FARP .