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| Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
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| Laser 28 - Excellent example of this great design Hamble le rice |
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Room for an obstruction |
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ClubRacer 
Far too distracted from work 
Joined: 26 Sep 15 Online Status: Offline Posts: 210 |
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 Topic: Room for an obstructionPosted: 15 Jun 23 at 8:21pm |
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Pretty much it, but my hypothetical thinking was that their courses were a little more parallel so it felt a little less of a deviation
It looks pretty obvious that P has to make a substantial change to avoid the obstruction on your diagram
Edited by ClubRacer - 15 Jun 23 at 8:21pm |
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Old bloke
Posting king 
Joined: 03 Nov 17 Online Status: Offline Posts: 121 |
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Posted: 16 Jun 23 at 8:02am |
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Thank you Jim, that's exactly it. We have a lot of these obstructions, and a 45'yacht certainly does require a significant alteration of course, but I had never come across this scenario before.
Generally the port gybe boat would have realised he was getting into a difficult situation and avoided it. I think he was asleep rather than hatching a cunning plan. Ps, how did you do the drawing? |
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JimC
Really should get out more 
Joined: 17 May 04 Location: United Kingdom Online Status: Online Posts: 6661 |
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Posted: 16 Jun 23 at 11:32am |
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I did the drawing from a blank page in a vector drawing package (Corel Draw).
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Old bloke
Posting king
Joined: 03 Nov 17 Online Status: Offline Posts: 121 |
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Posted: 16 Jun 23 at 2:07pm |
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Ah I see, thank you. I was trying to find a tool in the forum.
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Brass
Really should get out more
Joined: 24 Mar 08 Location: Australia Online Status: Offline Posts: 1151 |
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Posted: 17 Jun 23 at 12:04am |
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Diagramming Tools
Boat Scenario http://boats.sourceforge.net/pages/Download Free 1mB program for Windows, Linux etc Tactical Sailing Solutions (TSS) http://tss.peronneau.net/Original RRS diagramming software. Not free. Similar to Boat Scenario, but a little more sophisticated. Protestdraw http://pathealy.com/cpctools/protestdraw/default.html A very simple free MS Word document with a comprehensive library of boat and course images. |
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