Category Archives: Flying Tako 3.3

Hotlaps Update, September 2013

Hotlaps Handicaps September 17 2013

Hotlaps 2013 is a sailing format that helps skippers practice skills while doing fun, solo laps that are posted online. The Hotlaps database allows skippers to compare their lap time results with others; they can also contrast the relative performance of different boats that sail under the same ‘trial lap’ conditions.

There are six different Hotlaps raceline locations, and each has its own Hotlaps course: PLUMGUTBREADNUTKNAPTRACKICONLINKOUSSULU, and HEPURN. Sailing a Hotlap takes only ten minutes, and you can do it any time you want, in any boat.

hotlapsposters Just go to one of the racelines and click on the ‘Hotlaps 2013′ poster above the green buoy; it will give you all the info you need.

When you finish sailing the lap you can post it online by clicking a poster that’s labeled “Enter your lap time here.” It’s just as easy as that. 🙂

Sailors have been doing Hotlaps and posting their results since early in 2007, but this year we started a new 2013 cycle in deference to the large number of great, boats that have recently hit the water in SL. Since we began it in January, Hotlaps sailors have logged 442 lap scores sailing 45 different boat classes! Let me give a shout-out to that great group of 68 skippers who did all those laps:

2525, ak Topsail, Andi Merryman, Armano Xaris, B112, B117, B12, BM12, Brett Kjeller, Bunnie, Chaos Mandelbrot, CharliePakk, charliepakk, Dekka, Destiny Wescott, don Berthios, Emelia Azemus, Fearless Freenote, Glorfindel Arrow, gnupf gufler, Hannelore Ballinger, HansMarx, Hay Ah, IDBSDF61, JFos, Joy Acker, Justin Blade, Kain Xenobuilder, Kentrock Mesmer, Kris Hollysharp, Lance Corrimal, laured Cabassoun, Lesbo Charisma, Little Vixen, LucyInTheSky Afarensis, Maiko Taurog, michiya Yoshikawa, Nikif, notohama, nozomimi karu, Ome Audeburgh, pascal kira, Patrice Cournoyer, Pazzo Pestana, Peacy Cortes, Pensive Mission, poko Zepp, Popow Horbaczewski, Porter Tracy, Qyv Inshan, Rebbie Resident, Rim Telling, Ronin Zane, S11D, sailman, Samlara Vintner, SkyBlue Earthboy, Slanty, SteveLL resident, Takabou Destiny, Trapez Breen, VictorCR, Wolfhard Resident, Wrye Diabolito, Xi Larnia, xpaulx pain, yala74, Yuukie Onmura. ~~ WOOTS! ~~

2013 Hotlaps

All that hotlaps data goes into a public spreadsheet that contains multiple, linked pages that sort the results by race line and boat class, color-coded by skipper. Here’s an example, showing the submitted lap data for Plum Gut from January through September 16:

Sept 18 2013 Plum Gut Laps

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You can click the above image to get a larger view, but you can also just go to the live spreadsheet page any time to see the list of entered lap times.

2013 Handicaps

The pool of standardized lap data makes it possible to compare performance of different sailboats and calculate a “Handicap Factor” for each popular boat class.  Hotlaps 2013 uses the Melges-24 as it’s arbitrary reference standard. The M-24 is the Hotlaps index boat, and by definition it has a Handicap of 1.00. (You can see that shown in red in the first data row below).  All other boats have handicap values expressed relative to that standard.  

Here’s the current summary list of Handicaps for all the tested boats at each of the race courses:

summary HH

Each row in the above matrix represents a different boat class and the columns contain the handicap values for those boats for the six race lines.  Slower boats (i.e., those with longer lap times than M-24) have Handicap Factors that are less than 1.00,  and faster boats have handicap factors greater than 1.00. 

handicapsFor example, several sailors tested the Mesh Shop Laser One on each of the six Hotlaps courses. The average handicap values were 0.75, 0.73, 0.74, 0.62, 0.69, and 0.79. That’s a pretty tight clustering of results, considering the varied sailors involved and the differences of each course.

The average handicap for all courses was 0.72, suggesting that the Mesh Shop Laser One is 28% slower than  the Melges-24 on any typical racecourse (The M-24’s handicap= 1.00).

 The figure to the right shows a current list of handicaps for tested boats, averaged over all six lines. The slowest boats in the bunch include the Shelly, the Fizz,  and the Galiko NY32 (which has a Fizz engine). All these boats produced handicaps of 0.50-0.60, evidence they are roughly half as fast as the Melges-24.

Of course, a slow boat is not a bad thing; it just reflects the builder’s design and vision. Several other boats had handicaps as slow as the ones named above in the 0.50-0.60 range, including the Leetle Cat II, the Patchogue II, the RM Pilot, and the ACA Tiny.

Cruiser handicaps.

tri

powered by Rotaru

However, that’s the slow end of the spectum; most cruise boats are faster than that. The cruisers in SL tended to generate handicaps that range from 0.60- 0.90. That means they are 10-40% slower than the Melges-24, at least when sailed with a 15 knot wind. Nearly all Trudeau boats fit in this 0.60-0.90 “cruiser”-group. It’s a realistic speed-spot for them, since most Trudeaus are classic designs of earlier, multipurpose vessels; they are not hotrods.

Many other popular boats also fit in that Cruiser 0.60-0.90 speed-niche. For example, Craig Kbata’s Teleri 20 scores 0.70, Manul Rotaru‘s Beach Trimaran rates a 0.82, and Rene Marine‘s RM-12 comes in at 0.69. Quest Marine has two boats in this speed range as well; the 2M (0.74) and the Scow  (0.85).

bandit 50Analyse Dean’s recent Bandit 50 is one of the quickest of this whole cruising group. It scored a 0.89, placing it just 10% behind the Melges 24 racer. Kain Xenobuilder also has a new cruiser, the Cafe del Mar 75, that uses the same BWind 2.5 engine as the Bandit 50. You might think Cafe’s sailing performance would be similar to Bandit’s, but you’d be wrong. 🙂 CDM75The Hotlaps data shows that the Café 75 is a much faster boat, earning a handicap of 1.12; that beats Bandit 50 by over 20% !!

The Cafe Del Mar is designed to emulate a beamy mid-size cruising boat, but it sails more like an ocean racer. It’s even  12% faster than the lean-and-mean, carbon and glass Melges 24! Wowzers!

I’ll tell you much more about Bandit 50, Cafe 75, and the RM 12 in a separate post soon. 🙂

Racer Handicaps

The third large group of handicaps primarily includes the large, ocean race boats in SL. They all tended to score in the 0.90-1.20 range. 

Q M-24 launchSince Hotlaps 2013 uses the Melges 24 as it’s benchmark standard to set the other handicaps, it’s no surprise that boats that score around 1.00 are also racers. For example, Kanker Greenacre’s Tako 3.3 scored a handicap of 1.03 in this series, almost identical to the M-24. 🙂 

The Quest IACC scored a 0.94, a bit behind the ACA33 Racer with 1.03. The Mesh Shop’s two ocean racers are right in that mix as well; The OD65 ranked 1.10, and the VO70 earned a 1.03.OD-65

It’s interesting to comment that the Mesh Shop VO70 has a handicap that’s identical to  the old  Wildwind VO70 (1.03). That makes a lot of sense since both builders were modeling the same boat, but it’s great to see the consistency. 🙂

Speaking of Wildwind boats, the present lap results clearly show that WildWind is continuing its reputation for building the fastest ocean racers in SL sailing. The Wildcat-45 catamaran scored a 1.12, the WW Open-60 rated 1.07, and the (still beta) WW AC-72 came in with a rather incredible 1.54. If WildWind decides to release it, the AC-72 could be the fastest sailboat ever launched in Second Life. More important, it would be a truly remarkable emulation of this year’s RL Americas Cup racer. 🙂

ac72 crew

Handicaps for History

There are still many boats to test and extra data laps to run to get accurate numbers across the whole fleet. By December 2013, we should easily exceed 500 new database laps, and that data will be added to a pool of many thousand laps on numerous courses dating back a full seven years.

That’s prolly a good time to sit back with a stiff drink and try to make some conclusions about what Hotlaps can tell us about the diversity of boats we all share and sail in Second Life. 🙂

harpoon

Hotlaps tops 300

hepurn thurs

Woots! Kudos to LucyInThe Sky Afarensis; yesterday she posted lap #300 to the Hotlaps spreadsheet! She hit that tercentennial ceiling in real style too, by adding a new boat class to the list: The ACA Racer Tiny. 🙂

On the six Hotlaps courses to date, a total of 54 skippers have sailed 305 laps in 33 different boats. Wowzers! Here’s the current list of skippers who did all that sailing, colored-coded for the spreadsheets:

skippers 54

And next, here’s a copy of the current, active spreadsheet for the Plum Gut course. Individual lap scores are arranged in columns based on boat class, and the colors for each entry identify the skipper. As highlited below, there’s a set of tabs at the very bottom of the sheet that allow a user to switch to different pages in order to view individual race line results, raw entry data, or summary sheets.

Sailors can even edit the various spreadsheet pages. If you make a mistake filling out the entry form, you can go to the Lap data page, find the error there and correct it. If any Hotlaps user wants to rearrange or sort the data for a particular page, please feel free to open a new tab on the spreadsheet to do that. You can then copy the data you’re interested in to your new page for editing, and leave the original intact.

plum gut feb24

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Of course Plum Gut is just one of the six Hotlaps venues. There are five more.

This collected lap data has many potential uses. Individual sailors can follow their own laptimes to see if different sailing strategies make a measurable difference in their scores, or they can compare how their times match up against other sailors in the fleet.

The hotlaps data also makes it possible to “performance handicap” the many, popular boats in SLSailing. As I’ve discussed before, that’s done by comparing the average lap time for a given boat on a particular racecourse against the same information for a standard, “index” boat: The Melges-24. After nearly two months of data collection, the Melges is looking like a great index, for a dozen reasons I wont bore you about here. If you own a Quest Melges-24, you likely know the reasons already. 🙂

Anyway, here’s the handicap table as of yesterday. Below, the table to the left shows the handicap factors for boats on each of the six hotlaps courses (where the data is available). The table on the right shows the average handicap score for each of those boats, with the associated standard deviation for the small sample of values in each case.

summary tables feb25


So, how useful and reliable are the handicap factors?

Well, that’s what were still trying to figure out, but let me briefly talk about three points that came up in last Thursday’s Midnight Madness races.

hepurn feb21

Midnight Madness is a fun, multiclass race every Thursday at 9:00 pm, cosponsored by Danshire and Eden Bay Yacht Clubs. At the moment I’m using  Madness results to calculate potential handicap ‘adjustments’ and comparing them to the uncorrected, “normal” finish times.

As usual, a small but really great group of skippers showed up this past Thursday to race the Hepurn Hotlaps course. Here’s the result for race one.

Race One Lap Times: 
 Chaos Mandelbrot   M24 crewed — Start: 00:05  —  Last lap: 00:10:32
 Kris Hollysharp   M24 — Start: 00:01  —  Last lap: 00:11:18
 SteveLL Resident   Q2M — Start: 00:11  —  Last lap: 00:15:01
 qwerty Qork   IDQQ99 — Start: 00:02  —  Last lap: not finished
 Glorfindel Arrow   IDA81  — Start: 00:06  —  Last lap: not finished
Race One Results:
 1: Chaos Mandelbrot  (M24 crewed, 1.10) — 10:37 — corrected 11:40
 2: Kris Hollysharp   (M24, 1.00) — 11:19 — corrected 11:19
 3: SteveLL Resident   (2M, 0.76) — 15:12 — corrected 11:36
 4: qwerty Qork   IDQQ99 — not Finished
 5: Glorfindel Arrow   (M24, 1.0)  — not Finished
Unfortunately, qwerty and Glorf both crashed. Chaos and Kris both sailed Melges-24, and SteveLL sailed a Q2M.
R1 start
Kris was aggressive, extremely adept, and crossed the start line 4 seconds ahead of Chaos and Jane. However, a crewed Melges-24 can sail faster than one with a solo skipper, so Chaos was able to pull even with Kris and eventually pass her about midway through the course. Chaos went on to finish first, with an 18 sec. lead over Kris.
Looking at the prior handicaps however, a crew member gives an M-24 a roughly 10% performance advantage. Chaos’ corrected lap time would then be 11:40, a full minute behind Kris!
A similar issue came up with SteveLL. He was sailing a Quest 2-M, which is a much slower boat than the Melges-24. Steve cross the finish line a full 4 min. behind the lead boats, and there’s really no chance he could win a race without handicap adjustments.
However, factoring in the current handicap for the Q2-M (0.76) Steve’s corrected finish time becomes 11:36, a score that’s directly competitive with the two Melges in the race. In fact, with corrected scores Steve nosed out Chaos for Second Place!
second race finish
For the Second Race, a wondrous thing happened. There was a bright light from above, the heavens opened up, and Pensive Mission appeared at the race line, holding on to his Tako. pm and cmAlthough Pensive only makes rare appearances in regattas these days, he was one of Mowry Bay’s original Mow-Mows, and his skill with a Tako is part of SL’s nautical lore.
Well, in the Second Race we got a chance to see that legendary Boatman of the Mowry Apocalypse ride his Tako around Hepurn’s waters once more.
The Tako is quite a speedy boat and it’s powered by a real wind engine that makes beating to windward less of a hassle than most new boats. Thanks to Slanty Uriza, we also have a handicap from the Sulu Hotlaps Course. It’s 1.03, a close match for the Melges-24, so it made sense that Pensive was able to keep in close lockstep with both Chaos and Kris as the boats zoomed around the course.
A pleasant surprise occurred at the end of the race however, as I tallied up the scores. Since the Tako uses a very different wind engine, I wasn’t sure how “portable” the handicap factors might be within a mixed fleet or across different race courses. Well, to get a partial answer to that question I used Pensive’s single lap score to calculate a new Tako handicap for the Hepurn line.
Pensive’s Hepurn handicap worked out to 1.03, an exact match for Slanty’s Tako handicap using the Sulu line!! 🙂
 It looks like the handicap factors are proving to be both valid and consistent. That’s a nice thing. 🙂
Race Two Lap Times:
 Chaos Mandelbrot   IDCM91 — Start: 0:03  —  Last lap: 10:05
 Kris Hollysharp   IDKH47 — Start: 0:03  —  Last lap: 10:36
 Pensive Mission   ID25  — Start: 0:02  —  Last lap: 10:47
 Glorfindel Arrow   IDA81  — Start: 0:02  —  Last lap: 13:22
 SteveLL Resident   IDJB25 — Start: 0:05  —  Last lap: 14:40

Race Two Results:
1: Chaos Mandelbrot  M24 crew, 1.10 — 10:08 — Corrected 11:09
2: Kris Hollysharp   M24, 1.0 — 10:39 — Corrected 10:39
3: Pensive Mission   Tako 3.3 (1.03)  — 10:49 — Corrected 11:08
4: Glorfindel Arrow   M24, 1.0  — 13:24 — Corrected 13:24
5: SteveLL Resident   IDJB25 — 00:14:45 — Corrected 11:14

Hotlaps Turns Sixteen (Days)

Hotlaps Turns 16

Hotlaps 2013 is a sail racing format that lets sailors practice their skills by doing solo laps on a standard ‘test track.’ Skippers can then upload their ‘average, good‘ lap times to a spreadsheet that compares their results against other sailors and across different boat classes.

This round of Hotlaps is just getting going, but so far the response has been great and there’s lots more planned. 🙂

sailors jan16

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In just the first two weeks, 28 skippers entered 140 lap times for 24 different boats. The current list of Hotlaps sailors is shown on the right, and the ‘Color Code’ is a key to the lap times listed on the spreadsheet below (as well as on the pages of the active spreadsheet here).

There are five Hotlaps locations so far: Plum Gut, BreadnutLinkous, Knaptrackicon, and Sulu. There is a notecard over the raceline at each spot that will give a Hotlaps chart, database links, and any specific instructions. 🙂

So far, Plum Gut turns out to be the most popular Hotlaps location, with 88 lap entries. I’ve included a snapshot of the Plum Gut summary spreadsheet below. Click on it to get a bigger table that’s readable. 🙂

So far at Plum Gut seven sailors have contributed 15 laps sailing the Melges-24 “index boat.” The results are pretty consistent, with an average lap time of 8:59, and a standard deviation of 0:24. Fearless Freenote at the moment holds the speed record in that class; he logged a rather amazing 8:18 two days ago, edging out Armano Xaris’ prior time of 8:32.

Speaking of speediness, Fearless also showed that the lap time for the WildWind VO-70 is substantially faster than the new Mesh Shop VO-70. Many sailors guessed that was prolly the case, but it’s nice to see that Fearless nailed it. You can see the actual numbers in the table below. 🙂

HH Jan17 2013

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summary tables jan16

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Hotlaps isn’t just about speed though. The lap scores also help generate relative performance factors (a.k.a. “Handicaps“) that compare boats to an arbitrary standard (the Melges-24 is that index boat).

The table to the right lists the current set of handicap factors determined by lap scores at each of the five racelines. In general, all the racelines produce the same handicap rank for a given boat, but there’s still variability in the the actual handicap numbers. That should settle down as skippers sail more laps on all the lines and add their results to the mix. 🙂

Nonetheless, the present handicaps have a number of interesting results. For example, Slanty Uriza nicely showed on the Sulu line that the vernerable Tako 3.3 is a close lap-match for the new and shiny Melges-24, and both boats are roughly equal in speed to the ACA33 3.0.

We’ll see how well those numbers stand up in the coming weeks. 🙂
Oh, and don’t forget:

You got ten minutes?
You could sail a Hotlap! :-)

2005 hotlaps RFL

Takos to the Max

Max Starostin is back!

Max is a founder of Far East Yacht Club, and he’s been away from SL Sailing for far too long. 🙂 Today he announced his first race since he returned to the grid: Takos from the Arafura Raceline. Takos? It hasn’t been THAT long, Max! 🙂 I’m guessing he was just being nostalgic today.

Temi Sirbu, rokuonji Tomorrow, Bunta Beck and Como Canning joined him in Sea of Fables, and just like old times the fleet took off with Max in the lead.

Bunta Beck crossed the line in the #2 spot, and all three boats hung in tight for the beat to the top red mark.

Over the reach leg to Green, Max consolidated his lead and the Sirbu/ Tomorrow team struggled to catch up with Bunta Beck.

Here is Max on the run home; he finished a full minute ahead of the others.

I’m not sure quite what happened to Bunta Beck (the last leg was out of my draw distance), but when the fog cleared it was Temi Sirbu and rokuonji Tomorrow coming across the line in the Runner Up position. Bunta bravely recovered and sailed in 20 seconds later.
Here’s the final damage report:

Winner: Max Starostin ID51 Race time: 00:08:40
– Start: 00:00:04 — Last lap: 00:08:36
Runner up: Temi Sirbu ID13 Race time: 00:09:45
– Start: 00:00:11 — Last lap: 00:09:34
#3: Bunta Beck ID01 00:10:14
– Start: 00:00:08 — Last lap: 00:10:06

In case you were wondering where Como Canning was, I think he slept through the whole thing!

Como Canning

Welcome back Max!