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fjdoug said..
hey Salty,
that's simply looking at the outright max speeds using Garmin connect, weeding out the odd spike that doesn't look right with the tracks overlayed on Earth, i would be interested to know how that compares to what you guys use.
Thanks Doug, I had asked because it's a bit hard to know if quoted speeds are realistic, often I feel that a two second speed touched once gets claimed. I'm not sure I really agree with that, best 5 ten second runs being far more reliable. Regardless, 26 knots top on your 377 is perhaps more modest than I had thought and sounds entirely plausible.
Here's a little thread on the Speedsailing forum where Decrepit helped me out and confirmed that my results were looking good after a few modifications to my method.
www.seabreeze.com.au/forums/Windsurfing/Gps/Help-interpreting-my-gpx-file/ I'm using my phone as my gps. It goes on my mast just above the boom now because I don't like wearing it on my arm. When back home I load it into GPSactionreplay and pull out any spikes. (normally none or very few) I bring up the table of results and list them fastest to slowest then zoom right in and look to see what seems reasonable or not and delete them accordingly. I really like the program, it's easy to isolate a section and analyze it. It gives polar plots, vmg upwind and down and a host of other stuff... Trial period available on the software.
gpsactionreplay.free.fr/ I'm on the Lechner so my overall speeds are not so impressive, however my 2 sec, 10 sec, 500 meter, whatever are usually very close to one another. In a decent breeze 17-18knots downwind briefly peaking very occasionally just on 20. 10 knots upwind at about 100 degrees between tacks, or a bit slower and a bit higher if I choose. All this in up to 20knots or so, I'm still sorting out my 20+ gear. I've got a little quiet aim to see if I can push that 17-18 up to 20. Not sure if there's any real connection between these top speeds and time around a course though.
It's certainly no substitute for going boat on boat but in lieu of any other D2 guys locally I'm making do.
I'd be interested in seeing some raceboard .gpx files if you feel like sharing one day. Maybe in a separate thread, or by PM if your prefer. (or not at all is fine too!) Or even, dare I suggest, you strap your gps on and take your Lechner for a spin!
Cheers, Mikey