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GPS detection of OCS?
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JimC View Drop Down
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    Posted: 16 Dec 13 at 1:42am
Originally posted by alstorer

accurately scoring pursuit races could be much easier! For the sake of argument, I'd use proximity to the next mark of the course.

Indeed it would. It would solve the age old problem of working out what order the boats are in on the beats. Proximity to marks is far too crude though, think it has to be some some sort of vmg calc, otherwise you could have boats that are clearly ahead scored behind.
I wonder if they considered using the tracks to aid scoring at Datchet.
Trouble is you really do need DGPS,I've been tracking my canoe recently and the striking how much the boat moves around in all 3 dimensions when tied rigidly to the jetty between races!
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MerlinMags View Drop Down
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Posts: 588 		Post Options Post Options   Quote MerlinMags Quote  Post ReplyReply Direct Link To This Post Posted: 15 Dec 13 at 9:48pm
Originally posted by alstorer

Define "above decks".


Visible to your competitors, so they know you're not cheating!
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alstorer View Drop Down
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Posts: 2899 		Post Options Post Options   Quote alstorer Quote  Post ReplyReply Direct Link To This Post Posted: 15 Dec 13 at 9:19pm
Occurs to me:

If a system is made that is accurate and reliable enough, with Start and Finish definitions altered to suit, then accurately scoring pursuit races could be much easier! For the sake of argument, I'd use proximity to the next mark of the course.
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alstorer View Drop Down
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Posts: 2899 		Post Options Post Options   Quote alstorer Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 13 at 7:45pm
Originally posted by MerlinMags

If you ever proved that GPS did have high enough accuracy, you'd need to make the units high-visibility and make sure they were mounted above decks.
Define "above decks". Rather less common these days to have a space frame arrangement, but with that, arguably "above deck" and "at the mas foot" are the same thing.

However, I reckon some of the GPS problems the cherubs encountered at Queen Mary SC at the inlands might have been down to them tucking them under carbon foredecks. Radio signals don't pass very well through carbon. Carbon planes have to have glass fibre radomes, just like metal ones.
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Time Lord View Drop Down
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Posts: 301 		Post Options Post Options   Quote Time Lord Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 13 at 3:56pm
Much more likely that some geek would find a way to tweak their GPS unit so that it allowed them a boat length or two!!
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Posts: 588 		Post Options Post Options   Quote MerlinMags Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 13 at 12:01pm
If you ever proved that GPS did have high enough accuracy, you'd need to make the units high-visibility and make sure they were mounted above decks.

Otherwise some rascal could shift their GPS unit sneakily to the transom, and poke their bow safely over the line.
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Rupert View Drop Down
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Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 13 at 3:05pm
Manor Park use a shot gun - quite a surprise on a small lake in the midlands!
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alstorer View Drop Down
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Posts: 2899 		Post Options Post Options   Quote alstorer Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 13 at 2:48pm
Not sure if they still do it, but Thorpe Bay SC have been known to use a shotgun - blank rounds and aimed up and away from the line. Quite something to see someone stood atop the committee boat aiming a shotgun at the sky.
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yellowwelly View Drop Down
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Posts: 2003 		Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 13 at 2:24pm
Brandon Lee was killed from a blank whilst filming The Crow... dangerous things them blanks.  
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Posts: 1028 		Post Options Post Options   Quote Mark Jardine Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 13 at 12:09pm
Originally posted by Presuming Ed

Some might say that sailing in the Bosun nationals means you should get properly shot. But then sailing in the Bosun nationals is probably enough of a penance as it is. 


Back then there were a good number of them racing (49 in the 1990 nationals if I remember rightly) and it was the one event I beat a certain Steve Cockerill in!

You do have a point though! LOL
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