[quote="$1"]
I'm quite surprised that no one reacted to that video, it looks good to me and quite similar to the project presented in this thread.
[/quote]
I'm not involved with Benjamin's project, but I do know he is still working on it.
Yes that video looks good and is what I imagined could be achievable, however it gives no detail of what they are finding and the maker doesn't post the results here!
[quote="$1"]
I was watching the Quicksilver pro at snapper rocks on free to air TV the last two weekends and they are giving GPS to some of the surfers to wear. Mick Fanning managed about 40 km an hour - during a turn apparently, although what sort of turn I don't know, nor do they say what the straight line/bottom turn speed of the different surfers are - just top speeds. Hopefully this project will fill in that sort of detail with lots of extra data on flex.
[/quote]
I borrowed my wifes GPS watch a few years ago and took it out surfing. The results were interesting, but the problem is the frame of reference. GPS measures speed WRT the ground. The thing that is meaningful to studying a surfers motion is the speed WRT to the water. I think that Ben and that Spanish guys use of inertial sensors will yield much more meaningful information than a GPS. They are starting use GPS at pro surfing events because it is cheap to implement, and promotes hype about the event. Ooooh, Mick Fanning went 40 km/hour! That's nothing. My dog did 50 km/hour (31 mph) when I put a GPS unit on her collar and played fetch.
http://www2.swaylocks.com/node/1023130