I didn't know they used grid lock systems like that. You can see the heli attach to the deck grid at about 2:06.
In 1988, I was on a Grumman team that designed the mounting for a similar deck-lock probe for the Coast Guard's HH-65 Dolphins. We were provided a helicopter and a very realistic wooden mock-up of the probe, I believe from Westland. This work was done at Grumman's plant in St. Augustine, FL, which is still part of Northrop Grumman. Years later I saw a Dolphin as a static display at an airshow. The crewman must have thought I was nuts crawling under the chopper to look for the probe, which was indeed there, so I had to explain my role in getting it there.
Jim, that must be a kick for you to see your work in action. Not many people can enjoy that. I have to admit that it has happened to me a couple of times.
the superlynx also has negative pitch to "suck" itself down on the deck, thats the squat action you see late in the video.
I like the Garmin GPS on the glareshield of the helicopter. I would be worried about ground resonance, but then I've never flown a helicopter with wheels (or off the deck of a ship, for that matter!).
If you have been to Queenstown NZ and experienced a Hamilton turn in a jet boat then how about a Do24 water loop? https://vimeo.com/133906998
I had a hard time visualizing how this worked, so I Google image searched and found these... Image Unavailable, Please Login Image Unavailable, Please Login
The guy standing there with the flags is the one that seems to be in the most danger.....if it goes poorly it looks like he would be a rotor shrapnel magnet....