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Passing the Cup (part I)

November 20th, 2007 · 3 Comments

 

The Tako Cup 2007 is now in the history books, but I’m still musing about it. I think TC 2007 was a real watershed event that will have a lasting impact on SL racing; I don’t want it to slip by too quickly without some comment and discussion. To paraphrase Samuel Johnson (or maybe it was Benjamin Franklin, depending on who you read):

 A race unexamined is not worth sailing…

I guess I think TC 2007 was interesting and important for maybe four reasons. I mean, there could be a bunch more reasons, but four is probably the most I can keep in my head at the moment as I sit on a boat in the Caribbean.  Anyway, with that disclaimer, and with apologies for any vacation misspelling and poor grammar, here are the four points:

#1: Wind Shadowing. This summer Kanker Greenacre released the Tako 3.3, an upgrade with a major new feature: wind shadowing effects.  Technology seems to drive progress in many areas, and I think wind shadowing could be an innovation that fundamentally changes SL sailboat racing. “Wind shadowing” is the descriptive term for what happens between two boats when one moves windward to the other. The windward boat blocks the wind, effectively stealing it from the boat that lies leeward. The windward boat casts a “wind blanket” that points downwind, and the magnitude of the wind shadow effect, not surprisingly, depends on the size of the windward boat’s sail and the distance separating the two boats.

Wind shadowing is an extremely important tactic in real life sailboat racing. It’s hard to overstate the importance of this innovation, and It’s my guess that wind shadowing will fairly quickly completely revolutionize SL sailboat racing. If you think about it, without wind shadow, SL racing is pretty much a competition based on each skipper’s ability to manage their own boat position and maximize their sheeting angle on the racecourse. Unless they physically block each other, the boats really don’t interact, and a boat that crosses the Start first and garners a slight lead stands a pretty good chance of winning any race.  It’s interesting and fun, but maybe not rocket science. Kind of like a game of checkers on the back porch.

The introduction of wind shadowing, however, is a true game-changer.  Wind shadowing suddenly provides a race skipper with a host of strategic options that closely parallel what happens on the water in RL racing. Suddenly the boats are able to directly interact with each other, often in complex ways. The change in SL sailboat racing is both subtle and profound.  A race might look the same as it did before wind shadowing, but it’s not. In fact, nearly everything has changed. It’s like moving from checkers to chess.

The impact of this feature on SL Tako racing was quickly remarkable. Suddenly boats were jockeying for windward position, and shouts of “Leeward” and “Up Up Up!” could be heard everywhere, as the lee boats attempted to defend themselves. It’s now a common occurrence to look over your shoulder on a downwind leg and see another boat coming up astern, eating your wind.  Your sorry little boat begins… inexorably… to slow down as you fumble to do something – anything - to break free. Then, with a sickening, greyed-out ‘whop!’  your spinnaker collapses from asphyxiation and you sit there helpless, watching the competition zoom past to windward.

Hey… just like real life!

#2: spd 6: The second reason TC 2007 may have long-lasting impact on SL Racing is “spd 6.”

 I have to begin this discussion by saying that I’m delighted to finally get a chance here to give a big shout-out to MarkTwain White for his dedication to sailing in SL, RL, and for all I know, frostbiting on Europa. I think he deserves huge credit for two major decisions regarding TC 2007. These decisions not only reveal the depth of MTW’s personal knowledge of real-life sailing, but also demonstrate a remarkable clarity of vision for the future of SL racing.

OKOK… So what did he do? Well, give me a second. I’m getting to that.

As everybody reading this column knows, the regular, informal club races usually start with a “standard” wind setting for the particular start line. At SYC the wind speed is usually spd 10 (10 m/s) and at NYC it’s spd 11. However, after the fleet du jour does a few runs on a given course, somebody often chimes: “Hey, that was okay, but let’s try it again with more wind!” It’s pretty common to then crank up the wind to spd 14 and beyond during fun races, and - god knows - the Big Cat Cup races even use spd 18!

I admit these gale force races are great fun, particularly if you are in a time zone where the race takes place during cocktail hour. Although I admit that I personally try not to drink alcohol while racing (since I need both hands to control the boat), I’m willing to acknowledge I’m as guilty as anyone for running high-speed races. It’s a huge amount of fun and a big adrenaline rush.

However, the races often end up like bumper-cars. I’m pretty sure racing Force 10 wind does not make me a better sailor, any more than playing ‘chicken’ in Rebel Without a Cause made James Dean a better driver.

Anyway, let’s get back to the Tako Cup. As the TC 2007 qualifying round progressed, several sailors again suggested “let’s crank it up and see what these guys are really made of.” However,  that did not happen; MarkTwain White had his own fiendish plan. He decided to turn the wind DOWN to spd 6. That single adjustment changed everything again . Suddenly the races were not about quick reflexes or fast video refresh rates. At spd 6, skill and strategy became much more important than speed.

Personally, I think MTW’s decision will have an impact that extends far beyond the small number of prima donna racers that made the final rounds. MTW’s message registered with all SL sailors, and for many weeks thereafter we all raced the Olympic Course using spd 6. This low wind speed was far from boring. In fact, it was often a nail-biting challenge that left you watching the boat behind gradually inch up on your stern.

Sailing in light wind gives you the time to see all the other boats and guess at their strategy. You then have to weigh your options, keep a cool head, and choose your best tactical response.

As your faithful reporter here, I attended several of the semifinal light wind elimination races. High above the racecourse, those of us on the observation deck all riveted our attention on the race boats, second-guessing the choices of the competition skippers and trying to predict the outcome. The light winds actually made these races more exciting to watch, not less, since the slower speed enabled a wealth of tactical moves that no skipper would imagine trying under a stiffer breeze.

In fact, I’m fully convinced that the best sailing lesson I’ve ever had in SL wasn’t in a boat. It was the hour I spent watching M1sha Dallin and Armchair Binder fight it out on the Olympic course at spd 6. Their display of sailing knowledge and skill was absolutely breathtaking.

Bottom line: I think MTW’s decision to play out the final rounds using light winds emphasized an important point that I hope guides future race planning. In the final analysis, sailboat racing is not about speed. It’s about skill, experience, endurance and determination. 

Speaking of dedication and determination, I know I said I had four points to make, and so far I’ve only covered two. Unfortunately, I have an appointment tonight with Carlos and Charlie, two of a Caribbean sailor’s best friends. I can’t keep them waiting, so you’ll need to wait a day for part II of this tale.

Tags: Heard on the Dock · Tako Cup

3 responses so far ↓

  • 1 M1sha Dallin // Nov 22, 2007 at 12:09 pm

    Interesting observations Jane, and I’m pleased you enjoyed my Tako Cup race against Armchair. I also learnt a lot, but certainly I need to practice match race starting techniques - not an area I have had any exposure to in RL (apart from as a spectator).

    I also have some observations regarding ’shadowing’ and 6 m/s. I’m not sure if I should be raising these here or at ‘.org’, and they may be provocative, but since I’m here….

    Wind shadow has certainly added a new dimension to the racing. I believe the shadow effect of two boats under spinnaker is a reasonable simulation in its effect though possibly not magnitude. To windward however, two scenarios can be considered:

    (a) Consider two boats on parallel course travelling to windward with the leeward boat travelling faster and attempting to pass to leeward. Assuming that they are reasonably close, then: RL - the leeward boat would begin to overtake though eventually its boat speed would drop in the dirty air. The effect would be for the leeward boat to fall behind again but to then match speed (all else being equal). SL - similar though the drop in boat speed might be excessive, see below

    (b) RL - Consider two boats on parallel course travelling to windward but with the windward boat travelling faster and attempting to pass to windward. Again assuming that they are reasonably close and that the leeward boat does not luff, then: RL - as the windward boat draws level it will be affected by the backwash from the sails of the leeward boat. Close hauled the windward boat will both lose height and slow (and therefore forced to tack away). SL - very different, the windward boat is unaffected and will eventually ’shadow’ the leeward boat with an effect as in (a) above

    The consequence of (b) above will result in the leeward skipper being aggressive in asserting leeward rights where it would not be necessary in RL. Even more so when the magnitude of the resulting ’shadow’ is taken into account. With 6 m/s wind it is quite possible to foul another boat (who has leeward rights) but gain enough advantage to actually take a 360 penalty and still come out ahead.

    MarkTwain stated that 6 m/s was chosen because it maximised the effect of the Tako wind shadowing - perhaps maximising the effect is not what is required, and that some other value would provide the required simulation without excessively disadvantaging the shadowed boat (at least until the effect on the windward boat is included). Certainly fleet racing at 6m/s results in a mix of aggression and frustration.

  • 2 Armchair // Nov 22, 2007 at 6:51 pm

    Great article as always, Jane. I agree, that the race between M1sha an I was one of my most fun events ; not because I won, but because of the challenge to out maneuver an exceptional competitor and to make quick decisions regarding timing and future boat placement.
    Again, I want to thank Mark, Nber, Soro, Svar, Lar, Aislin, You (Jane), and any other volunteers for helping manage the event.
    I agree, wind shadowing definitely made tactics more interesting, and as M1sha stated; the inception of the “lee-bow” wind shadow effect would be a wonderful addition.

    http://www.americascup.com/en/acclopaedia/understanding/match_racing_rules/content_upwind/lee_bow.php

    There were many things to learn from such an event ; and I am sure that all the future events will benefit from this knowledge.

  • 3 Jane Fossett // Nov 27, 2007 at 9:50 am

    M1SHA: “… RL - as the windward boat draws level it will be affected by the backwash from the sails of the leeward boat. … SL - very different, the windward boat is unaffected and will eventually ’shadow’ the leeward boat …”
    I agree with M1sha, and her comments underscore my main point.
    Wind shadowing is a new advance in SL Racing that will undoubtedly have major impact. Although TC 2007 is the first SL Cup Race to use wind shadowing, I think everyone is already looking ahead for additional modifications that will bring SL Sailing closer to the real thing.
    M1sha’s right; the Tako’s wind shadowing does not allow for turbulence effects. But look on the bright side; Christmas is less than a month away.

    Dear Santa,
    Remember I sat on your lap last week and asked for a new windsetter?
    Well, I need something else too.
    How good are you at modeling turbulence over a camber airfoil? ….

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