Sunday Rules Snap: Venn Diagram

Some time ago Google search turned up this diagram:

It is a visual representation of the Racing Rules, concentrated around rule 18, 19 & 20
Each circle represents a specific 'obstacle' a boat can come across on a race course and the relation it has to that boat. For instance another boat (blue), an obstruction (light green), overlapped becoming a boat that is also an obstruction (dark blue).

I came across this in Scuttlebutt (http://www.sailingscuttlebutt.com/photos/11/0225/) and mailed to the one who send it in. Alas, I never received a reply, so I'm using it as if it is in the public domain.

Want to know more about Venn Diagrams: go to http://en.wikipedia.org/wiki/Venn_diagram
I'm working on a Venn Diagram for rules 10, 11, 12 & 13, but haven't found one that is accurate enough. Perhaps some of you can have a go?


I've returned home after a uneventful flight from Dublin to Amsterdam. Looking forward in sleeping in my own bed. Tomorrow I have an Appeals Committee meeting.....and then (Tuesday) travel to Trapani.
J.

Sunday Rules Snap

Too 'good' to let go without a second posting:
Shamelessly stolen from Blur, this week's Sunday rules Snap:

How many boats
DSQ-ed?

Racing Rules Correlator (1972)

Looking for an appropriate picture for Sunday, I inadvertently clicked on the wrong button in Google and was linked to a Patent Search with the words "Racing Rules of Sailing".

Low and behold, there was one!
The Racing Rules Correlator, invented by Greg A Field and patented in 1972!

In the illustrated embodiment, the present invention consists of a simple and rugged construction and in one series of settings depicts the apparent relative situation between two racing yachts and additionally gives in short form the particular rule applicable to the existing situation.

More particularly, the invention employs two flat circular discs made of metal, wood, plastic, cardboard or other suitable rigid sheet material. The discs have preselected nautical data recorded on both faces thereof. On one face, the data relates to yachts sailing on the same tack, and on the other, for both discs, data relating to yachts sailing on opposite tacks and miscellaneous racing situations. The two discs are mounted in a frame of like material defined by spaced panels housing the discs with the discs mounted for rotation within the frame: the axis of rotation for one disc being laterally offset with respect to the other allowing the discs to rotate within the frame in overlapped position. With the two discs mounted in overlapping fashion, the frame covering the same is provided with a viewing window cut in each side and preferably aligned with the frame are further provided selector marks on the periphery of upper edge portions which are curved and which correspond in general to the periphery of the discs carried thereby. The diameter of the disc is such that a peripheral marginal portion of each disc extends beyond respective curved portions of the frame panel. In the preferred embodiment, nautical data relating to the various situations of each yacht allows the disc to

be rotated so that the particular yacht situation is set at or between the frame marks. Preferably, the various yacht situation data is carried by first disc sector portions, in this case on the uncovered margin of both discs, allowing initial setup of one disc for the operator and another for that of the competing yacht. Upon setting of both discs, the operator readily reads through one of the windows a specific rule governing the instant situation between the yachts.

 

I wonder if it actually ever got made?

If so, I would very much like to get in touch with someone who still has one or, even better, who has used one in a regatta... Its already 40 years ago that this patent was granted, but that at least is still valid.

Read all about it on:

USPTO Patent Full-Text and Image Database  or

Google Patents

In today's world this would be an made into an APP on our iPhone :-)....

Sunday Rules Snap | Exploiting Fetching

Some time ago Menno send me a mail about a curious rules issue he had seen on the internet: On the Sailgroove-website in the series Technique Tuesdays, Val Smith explains a ‘loophole’ exploiting the new definition of fetching in the rulebook.


Sailing Videos on Sailgroove


Perhaps you have already seen this.

My question to all LTW readers: Has anybody ever come across this on the water (umpiring) or in the room? Is it being done?

Most regatta’s in my neck of the woods are done in non-tidal waters so there’s very little – if any – current to be exploited. But there must be sailing waters around the world were this kind of ‘fetching’ is possible…..

Thanks Menno, for your contribution. Please keep sending them in.

J.

Sunday Rules Snap | Soft versus Wing

In a blogpost on SailRaceWin published today, a couple nice pictures were posted: Dubai Traditional 60ft Dhow Sailing Championships: Heat One.

Since I spend half a year in Dubai as a trainee, my interest was peeked.
I know (very) little about the traditional Dhows that are sailed there, but they sure are beautiful. I never got the chance to sail on one, only visited a builders-yard to see the frame, alas.
Anyway here's the picture:

Image copyright Ashraf Al Amra.

This particular photo struck me as a Port - Starboard situation between the 'softes' sail possible and the ultimate wing!
Since I'm a civil engineer it also is a picture of the two things that take much of my time...
And it sure makes me wish this FFing winter comes to an end....

FTBD (27)

If you don't know what the title means - I suggest you do some research.

Been fiddling around with the layout a little bit, last couple of weeks, but still am not completely happy with the results. I think I'll do some spring cleaning next. Getting rid of the side-clutter to the fixed pages in the top horizontal bar, some more. That will reduce loading time, which has gone up again, since I last checked. Suggestions are welcome.

The AC posts - still running - have generated an increase in traffic with an new LTW record of 1855 visits on a single day last Tuesday. And total visits have passed the 100.000 mark. To keep the average of one post a day before my next year-day, I'll have to post 1.623 posts/day. Well, this month it looks like that will succeed.

Please keep sending in your Sunday rules - snaps. The crew hanging outside the lifelines was a hit!

The list of ten highest referring sites to LTW:   

1	http://blogger.com
2	http://sailingscuttlebutt.com
3	http://propercourse.blogspot.com
4	http://destinationonedesign.com
5	http://forums.sailinganarchy.com
6	http://google.com
7	http://wayfarer-international.org
8	http://ukhalsey.com
9	http://draft.blogger.com
10	http://tss.peronneau.net

My thanks to you all, but particularly to "Lord T' who celebrated his fifth B'day only yesterday! Congrats with that, indeed!

Google ranks LTW as fourth with "Racing Rules of Sailing" as search, after ISAF, US Sailing and Wikipedia. I can live with that.

We've  had a couple of months winter here, with lots of ice and snow - on and off. And it doesn't look like it is going to let up anytime soon. So, no winter sailing, alas. Maybe in April.



Cheers,
J.

Sunday Rules Snap; Rule 49

Luigi send me the following snap (together with his best wishes for 2010):

and asks in his mail: "Is this an infringement of rule 49?"

Dear Luigi,
I hope your year may be eventful and happy as well and I'll let the LTW_readers come up with the answer to your query. Thanks for sending it in!
Cheers, Jos

Sunday Rules Snap |5

In our almost forgotten series of rules-pictures this Sunday a message from the other side of the globe. A great look into College Sailing in Japan from Sen Yamaoka.

The first part you find here: Sunday Rules Snap |4

Dear Jos;
Very sorry for my long silence.
I always appreciate your great work in LOOK TO WINDWARD.
The second volume of "From the other side of the Globe: Snipes and 470's", dated May 24, 2009
In Japan, fall is the best season. We have some holidays in the middle of September. We call it the "Silver week" as against "Golden week" in May. There are many types of events, such as art festivals, cultural festivals and sports festivals.
The KANSAI (West of Japan) Intercollegiate Sailing Championship was held from Sep 21 through 23 at the Nishinomiya yacht harbour, which is located between Osaka and Kobe.

The Japanese college sailing clubs cherish their long-established tradition. This time I will focus on the scenery of the shore duties with passing time.

Photo 1: Kickoff ceremony.
Team members are singing a school song in unison before going into
battle.

Photo 2: Meeting.
A coach is giving a lecture to team members. Seniors (students in the fourth year) are sitting on the bench but juniors, sophomores and freshmen are sitting on the ground regardless of summer or winter. There are not enough chairs for all.

Photo 3 & Photo 4: Cheering before leaving from the slope.
Cheering parties consist of substitute members and they are yelling
to competitors. As there is a tremendous gap between the rich and the poor in Japanese economic world, there is a gap between the strong and the weak in college sports clubs. The photo 3 is a champion club's one and the photo 4 is a few members club's one.

Photo5 & Photo6: Prize-giving ceremony.
Sailors change into their uniforms and each flag bearer is hoisting his
club flag. The president awards a testimonial and a trophy to the ladies' winners.

Photo7: Commemorative photo.
The runner-up team members are assembled in front of the club house.

With best wishes;
Sen Yamaoka

Thank you SEN!

A very nice and informative look into your 'sailing' culture. Compared to this, our team racing events present a more undisciplined picture...., although an occasional song might be heard.

If you have a picture for this Sunday Rules Snap don't hesitate to send it in!

Sunday Rules Snap |4 関西学生ヨット春季選手権大会

From the other side of the Globe: Snipes and 470's

Dear Jos,
I always appreciate your great work in LOOK TO WINDWARD. Although you may not know, Japan intercollegiate sailing is very popular and has long history over 80 years. Its characteristic is that racing classes are only 470 and Snipe, and the format is a fleet racing. The KANSAI Intercollegiate Sailing Championship was held from May 5th through 6th at the Nishinomiya yacht harbour, where is located between Osaka and Kobe and which is one of the three famous yacht harbours in Japan.
KANSAI is a familiar name. KAN means a barrier, SAI means west and TOO means east. Therefore KAN-SAI is West of Japan. Its capital is Osaka, my city. KAN-TOO is East of Japan. Needless to say, its capital is Tokyo.
In this regatta, participating boats were 44 boats for 470 class and 43 boats for Snipe class. The student sailors in Kansai are fairly strong. Incidentally, a university 470 team won the 2nd place and a university Snipe team won the 3rd place in the last Japan intercollegiate sailing championship 2008. The condition was the wind, 5.4m/s to 7.6m, the first day and 3m/s to 4.5m/s, the second day. Two classes' races took effect at the same area and the starting sequence was made normally every five minutes because of 3 through 5 races per day. Since wind was weak on the second day, 470 and Snipe boats sailed together at the same time and rounding marks was thrown into great confusion. We were happy 'Zone' is three lengths for both.
Jury boats were three, two ribs and one SRV. Jury members were four senior judges, three judges and two probationers. The total number of Protests were seven and Rule 42 infringements were three. No comments in particular. The regatta was good success.
Attached hereto two photos and two results.
With best wishes,
Sen Yamaoka

Is that you in the Jury-boat, Sen?

Sunday Rules Snap |3

Very close quarter Match Racing
Two pictures from Hedwich who umpired at a Match Race Event in Delft this Sunday.
You can see it's very narrow and small in "de Kolk" which no doubt has resulted in some mixing of rules 18, 19 and 20.

The event is organized by Broach

Sunday Rules Snap |2

Two very different pictures this Sunday.

The first a little bleak - perfect for today (it's been windy, cold and raining here all day) - also signifying no sailing.

No wind - no sailing

Taken on the second day of the Tulip race 2009 (first weekend of April) by Hedwich

The second one send in by Manuel, who attended the IRO Seminar in the last weekend of April:
Enclosed I send to LTW a photo of a relax moment with LRF Laser RangeFinders. The seminar was organized by the RYA/ISAF in Southampton (GBR)

If you have a picture, please send it to rrs-study ed home dot nl and perhaps it will be posted in a next episode of Sunday Rules Snap....

.

Sunday Rules Snap Homeground

Second in the new series 'Sunday Rules Snap' a rules picture from Menno:
He is sailing the red boat and has to give room at the mark to the sailor with the orange cap.
He writes: "The boat in the middle between the two other boats seems to break rule 18.3. It seems that the middle boat has tacked. You can see in the picture that the person has his hands at a position which you would have after a tack".

Whether or not this is a rule 18.3 infringement depends if Menno needed to luff above close-hauled. Perhaps after this snap was taken? In the photo he is still at a close-hauled course, his sail is fully 'used'.

Taken on the Sneekermeer, Class: Splash, Event: Easterregatta at a windward mark.

Thanks Menno!