Tuesday, November 9, 2010

Cooler Than Ollie



It is common knowledge that the Ollie box has been one of the great innovations in small boat sailing. It is a waterproof automatic timing and horn system for starting races. It can be programmed with up to three different sequences, selectable from inside the box. It has made life easier for many, many race committees and kept timing precise for the racers. It is unquestionably a great invention!

But as clever and useful as the Ollie box is, my good friend and fellow laser sailor, Eric, wondered if there might be a way to have an automated system that we could use in our informal racing where no race committee boat or race committee person is present. Could there be an alternative to rabbit starts that would help us all hone our time and distance judgment in starting? Could we just float an Ollie box and have one of the racers initiate the sequence?

Ollie boxes are expensive and fairly heavy, and one would sink like a stone if given the chance. It didn’t take much thought to realize that any flotation scheme risked losing the Ollie if something went wrong. It was particularly worrisome that it would not be our Ollie box at the bottom of the lake, it would be our Yacht club’s. Eric decided to start from scratch and develop another floating automated starting system that could be operated by a passing racer. Here is his description of his ingenious and low cost solution.

The device is built into a medium-sized picnic cooler which is about 10 inches wide so that it can be transported in a Laser cockpit. A 5 lb. barbell is used as an anchor attached with a 50 ft. line to a cleat on the forward end of the cooler. Excess line is wrapped around the cooler handle so the scope can be adjusted according to the water depth. The cover is secured and sealed by good old duct tape.


There are just two control switches, “Start” and “Abort,” which are doorbell buttons mounted on the aft end of the cooler. There is no separate power switch. The unit turns on when the start button is pressed, and automatically powers down at the end of the start sequence or when “Abort” is pressed. 

 A standard 3-minute dinghy starting sequence is used beginning with 5 short warning beeps and ending with a 5-second countdown to the long start blast. The short tones are ¼ second long with ¼ second spacing. Long tones are 1 second with ½ second spacing. The final start blast is 2 seconds long.

 
The sound source is a waterproof piezoelectric marine horn which has been likened to the sound of a dying duck. It is not terribly loud, but on the other hand, it does not destroy the eardrums of the sailor starting at the “boat” end of the line.

 



The electronics are housed in a small waterproof plastic box (in case the outer duct tape seal fails). The power is supplied by 8 D-cell batteries mounted to the floor of the cooler so they also serve as ballast along with two 4 lb barbells. The calculated battery capacity is about 2,400 starts, so battery life is really just limited by shelf life. Three empty 2 liter soft drink bottles are included in the enclosure for emergency flotation.

 


The electronics consist of a small microprocessor board (ARMite single board controller, Coridium Network Control Systems) with a few extra solid state components added to interface with the buttons and horn, along with some circuitry for the auto power-down. The software is just a small (about 170 line) program written in BASIC.

 

Overall, the system works pretty well, although I am sure there are improvements that could be made. Naturally, we have to use the honor system when it comes to being over early at the start. Maybe someone can come up with a paintball system to mark a boat that is OCS.

Yarg

Wednesday, October 27, 2010

Gumption

Last Saturday was the final day on the fall sailing season for the high school team I coach. Actually Thursday was the last official day, but four of them wanted to drive two hours to get in one last day and one last regatta. You gotta love those people who can’t get enough of the things they are passionate about and respond to each last time or last day with a plea for “just one more.”

Maybe a coach shouldn’t be happy after his team finishes seventh in an eight boat regatta, but after silencing the Vince Lombardi voice in my head, it occurred to me I was proud of my very young freshman and sophomore sailors who thought nothing of going head to head with the best varsity junior and seniors from other schools. It took me a while to really pinpoint why I was so proud of them, but out of the blue, despite years since I have heard, read, or spoken the word, the perfect word came to me – gumption. Gumption is a word that seems to be out of fashion, but it sounds great and is enthusiastically positive without being syrupy or trite.

Dictionaries offer many definitions for gumption – initiative, resourcefulness, courage, spunk, guts, common sense – but the definition I like best comes from Zen and the Art of Motorcycle Maintenance by Robert Pirsig.

“A person filled with gumption doesn’t sit around dissipating and stewing about things. He’s at the front of the train of his own awareness, watching to see what’s up the track and meeting it when it comes. That’s gumption.”

It took gumption just to get to this regatta. When the event was first discussed, it was explained that it was two hours away, that the school would not provide transportation, that the school prohibited the coach from driving students in his own car, and that kids therefore had to provide their own transportation. None of the varsity skippers was prepared to hurdle those obstacles, but the future star freshman, and head gumption-eer immediately responded with “I’ll go. My mom will drive.”
“Has she agreed to that?”
“Not yet, but she will.”
The very talented out of town sophomore who sails with us, but is usually prohibited from competing in official school competitions, said he “would clear his schedule” for some outside competition. The freshman’s regular crew, our team captain, responded with her usual “I have no life outside sailing; I’m available.” And a few days later the volunteer for everything sophomore who always wants to go “even if I’m not sailing” offered to crew. The plan was hatched. We committed to the regatta.

It took a little more gumption to stick to that commitment after a series of setbacks. Future star freshman sprained her ankle the weekend before the regatta. She couldn’t sail all week, but swore she would heal enough and tape up the ankle sufficiently to sail on Saturday. On Wednesday the very talented (best kid on our team) out of town kid thanked me for a great season and said he now had a family obligation on regatta day. A call for a volunteer replacement elicited only one sophomore who was a crew and not a skipper. The only solution was to elevate the volunteer for everything sophomore from crew to skipper, and although he just started to drive the boat this year, and is about ninth on our depth chart, he was our man. None of the kids thought of any of this as an obstacle; it was just an adjustment in the plan.

When it came to the racing, there were six races in the A fleet for future star freshman and her crew, and six races in B fleet for volunteer for everything sophomore and his crew. In the first five races, future star freshman was averaging sixth place out of eight and volunteer for everything sophomore was averaging seventh. But in the final race for each, things started to fall into place. Future star freshman advanced from sixth at the windward mark to first on the last leg and then lost one boat to finish second. Volunteer for everything sophomore put together a good first leg to be fourth at the windward mark and gained one boat to finish third.

In our own gumption based scoring system, we threw out the first five races, counted only the last race in each fleet, and won the regatta by one point.

My sailors impressed themselves with what they accomplished in those final races, but they really impressed me with the gumption that it took to get them that opportunity for success.

As I think about it, maybe one of the things I like most about sailing is the gumption of the sailors. High schoolers are frequently willing to risk repeated capsizing and challenge themselves to sail in strong wind that the coaches know they can’t handle. Blue water sailors, long distance ocean racers, and solo single handed round the world racers all possess incredible knowledge and skill, but they are all the more admirable because of the gumption they demonstrate in pursuing their challenges.

And a final shout out goes to a couple of my friends who had the gumption to fly to England, compete with world class sailors, push the limits of their aging (and in one case, sick) bodies, and test the limits of their small boat sailing abilities in overpowering wind and massive waves. You have my admiration.

Saturday, October 23, 2010

Autobailers- Part Two

Removal and replacement with a watertight plate

For a very long time, leaking autobailers had been my nemesis as I battled to keep all 12 of our high school sailing team’s well used 420’s fully functional. This year, it was time to abandon our duct tape solution (actually better tape than duct tape, but just tape nonetheless) and move on to a real solution. Several ideas occurred to us, but each seemed both expensive and flawed in one way or another.

  • Replacing the autobailers would be expensive ($62 each x 12), and they would quickly fail again with the boats exposed to our very sandy environment and the care left in the hands of multiple, careless, high school students.
  • Fiberglass work to plug the holes after removing the autobailers would be tricky and time consuming, especially given the very thin hulls on 420’s. A quality fiberglass repair of a 3” by 5” hole also takes expertise I don’t have.
  • A friend offered to weld the old autobailers shut, but after discovering the gaskets inside, he determined they would melt into a gooey mess that was not compatible with welding.
  • A stainless steel plate bolted to the hull with the same bolts used by the removed autobailer would seem to work nicely. I couldn’t find anything like this sold commercially, and I worried that having them made would get almost as expensive as buying new autobailers. When I examined an old bailer I had removed, discovering that the bottom of the bailer was not flat, but a pan shape, I became totally discouraged about the cost of having such a piece custom made.
What we (mostly a former sailing team member, now a college graduate) finally came up with was a way to reuse pieces of the old autobailer to make a waterproof plate. The 420 autobailers are constructed from three separate pieces of stainless steel and a couple of gaskets. The chute that drops to let out water is sandwiched between two frames. Our solution was to replace the chute and its gaskets with a solid piece of hardened West System epoxy resin that would span the hole and bond to both frames of stainless steel with a water-tight seal. We tried it out on our boats during the summer, and we have been sailing for six weeks this fall with no leaks.

Here is what the process looks like:

First, we remove the autobailers and separate the three pieces, the two frames and the chute. They are fastened together with six copper rivets that need to be drilled out.

Drilling Out the Autobailer Rivits

Autobailer with Rivits and Lever Removed

After the pieces are separated, the chute and its gaskets are discarded.

Next, the top and bottom frames are tightly bolted together. Then, they are temporarily bolted to a piece of wood that will serve as the bottom form when we pour in the resin later. Wax paper must be inserted between the wood and the frames to prevent adhesion of resin to the wood.

Frames Ready to Receive Fluid Resin

The resin is two part West System epoxy with High Density 404 Adhesive Filler mixed to a thick, but pour-able, consistency. It is just poured into the frames, making sure all the corners are filled. (We waited 24 hours before removing the assembly, but the resin sets up in about an hour.)

Pouring Resin into Metal Frames

The final step is removing the new pieces from the temporary molding board and inserting them into the boats to plug the holes where the autobailers were removed.

Finished Autobailer Replacement Plate

All the old silicone or 5200 needs to be removed from the fiberglass on the boat before installing the new piece, and this is the most time consuming and tedious part of the process. When installing the new piece, all the old nuts and bolts are used. Working simultaneously from both the top and the bottom of the boat takes two people and is a little awkward. Careful attention needs to be paid to craftsmanship when the new sealant is installed. (We screwed this up on a couple of boats and had to reseal them.) We used marine silicone sealant which lasts for a long time, but had we been 100% sure this whole approach was going to work, we might have used 5200 for a permanent bond.

View of 420 Hull with Autobailer Plug Installed

Has anyone else come up with another way to eliminate autobailers that they would like to share? Other comments on autobailers?

Yarg

Friday, October 22, 2010

Autobailers- Part One

Keeping it simple?

Autobailer side view - open

Some time ago, Paul Elevstrom came up with a simple solution for removing the water that accumulates in the cockpit when sailing small boats in big wind and waves. He used the fundamental Bernoulli principle (low pressure created by moving fluids – you remember) to invent the autobailer. In Lasers, 420’s, and other small boats I have seen, the autobailers all have the same basic design. A chute that can open and close is mounted at the lowest point of the hull and depends on suction caused when the boat is moving rapidly forward to remove water from the boat. It has “a wedge shaped venturi that closes automatically if the boat grounds or hits an obstruction, and a flap that acts as a non return valve to minimise water coming in if the boat is stationary or moving too slowly for the device to work.” (Description from Wikipedia, with British spelling of minimize.) Mr. Elevstrom’s autobailers have been bailing small racing boats for a long time now.

But wait! Autobailers have also been letting significant amounts of water leak into small boats for a long time now. Maybe cutting a hole in the bottom of a boat to let the water out is not such a simple solution. Isn’t that how boats sink?

I think many of us have had love/hate relationships with autobailers over the years. Sometimes they seem to work, and sometimes they cause annoying leaks. My experience is that they work well when they are installed, maintained, and used properly, but when those things are done poorly, the system breaks down quickly and the water flows the wrong way, sometimes in copious amounts. I suspect Paul Evelstrom was very good at care and maintenance. I certainly try to be good about those things with my Laser, but don’t always live up to his or my own standard. However, many small boat owners don’t believe in maintenance. They hate autobailers.

Among those who abhor maintenance are all of the sailors on the high school sailing team I coach. They not only abhor maintenance, they are inclined to practice abject neglect or worse on all of their equipment. Fighting these instincts in upper-middle class American teenagers is a tilting at windmills kind of exercise. Apparently, it is one of my callings.

We have a fleet of twelve old 420’s, no maintenance person or budget, and our boats, which are shared with the town recreation department, are heavily used. Despite ever improving preventative maintenance (done mostly by me), things still break – frequently. Although problems run the gamut in older boats, the overwhelmingly most frequent failure is leaking, nay, hemorrhaging autobailers. These devices depend on two different gaskets and a silicone or 3M5200 seal - three opportunities for water infiltration. For two years now, our favorite solution has been to tape over bailers with a 4” wide, waterproof tape which obviously also eliminates any possible benefit from autobailers. For several reasons, this approach has had various degrees of success, but it seems the “coach, my boat leaks” complaints never stop.

In fairness to the kids, some of the boats had seriously flawed autobailers by the time we got them. On top of that, we launch from a beach. Raising the main and putting on the rudders while standing in the shallow water stirs up the bottom enough to create an insidious slurry cloud that exposes all underwater parts to as much sand as water. Sand on the sailors’ boots also gets deposited inside the boat when they hop in. Rubber gasketed autobailers are just no match for sand that can penetrate the smallest of crevices. I can’t imagine the perfection in care and maintenance required to keep a bailer opening freely and closing tightly in these conditions.

With all due respect and deference to Paul Elevstrom, autobailers demand a high level of care and maintenance that is just not possible for us (and many others I suspect). A device that uses simple mechanics and physics turns out to be not so simple when operated by teenagers in a sandy environment. For us, a hole in the bottom of the boat is just a leak.

We won’t miss having working autobailers. They really don’t work well in the 420 anyway until the boat is going fast. Our courses are always short and don’t offer long fast straight-aways where the self-bailers work best.

The solution for us is a bleach bottle bailer and no hole in the bottom of the boat. Since all our boats came with an autobailer, the problem became how to remove them and plug the holes (twelve times) with a minimum of cost and effort. Necessity being the mother of invention, we came up with a way.

I haven’t heard a leaking boat complaint in six weeks, so I’m cautiously optimistic we may have found a relatively simple and definitely cheap solution for the hole in our boats.

Part Two will attempt to explain and illustrate our approach.

Yarg

Monday, July 26, 2010

10 Suggestions For Managing Multi-fleet Regattas

The last three regattas I have attended have had two, three, and four different fleets starting on the same starting line. Sometimes the fleets have different numbers of races, different lengths of courses, and sometimes even different course configurations. It can be quite a juggling act for the Race Committee. Although nobody has asked me, I want to offer my two cents about techniques that can be used to make race management more efficient in these highly challenging conditions. I’m not an expert, but I have been to enough races to see a lot of good ideas and endorse them as if they were my own. The terrific regatta I wrote about a month ago used several, but not all of these suggestions. I think each item makes an incremental improvement, but each also requires some resources, so there is always a trade-off between the two. I’m sure my list is not comprehensive, so please feel free to add your thoughts.

The overriding principle here is to maximize the PRO’s options. In a multi-fleet regatta, the PRO is constantly making judgments about minimizing inter-fleet interference and getting the next fleet started. He needs all the tools he can get to be flexible and agile, and he can’t have his hands tied by unnecessary constraints in the Sailing Instructions. He needs the best committee members or crew that he can find, he needs plenty of mark and rescue boats, he needs to be able to move marks quickly and easily, he needs the capacity to change courses, shorten courses, and have a separate finish boat when required.

1. Get a skilled PRO and a crew who enjoy doing all this.  Some people actually have fun meeting the challenges managing this kind of regatta brings. Some also enjoy sailing as a spectator sport. And who doesn’t like riding around in power boats talking on the radio?

2. Keep the start and finish lines outside the course.  This keeps all those not starting or finishing away from these areas. Lines in the middle of the course or even at marks are subject to traffic from any of the fleets.

3. Use separate start and finish lines.  Having to delay the start of a whole fleet for a couple of stragglers at the end of another fleet wastes a lot of time. A separate finish line solves this problem. One line on each side of the committee boat is the easiest way to do this. A finish line completely separate from the starting area goes even further by allowing simultaneously starts and finishes by different fleets. But it also takes a boat and a skilled crew to set a good finish line and record finishes.

4. Use a short starting sequence.  It is always tricky to determine if there is enough time to get off a start without running the starting fleet into a fleet already racing. The shorter the starting sequence the easier it is to make that judgment. The three minute dinghy start works well.

5. Get enough marks.  Having different marks for different fleets is the ultimate in flexibility. They do need to be very clearly different, like yellow and orange. They can be tied together whenever the same location can be used for multiple fleets. A change of course mark is also good to have so that the new mark can be placed immediately, and the mark boat has more time to remove the old mark.

6. Make the marks easy to handle.  I like marks with a handle on top and a lightweight anchor (a short chain or a sash weight work great where I sail). As I was told in a US Sailing seminar, “You are only anchoring a bag of air.” If marks can be dragable – even better. Placing and moving marks can be relatively difficult or easy and relatively time consuming or quick.

7. Equip all mark boats with change of course and shorten course flags.  All boats also need to be able to anchor and record finishes if called upon. The crews need to clearly understand the procedures for all this. A rule book provides a handy reference for double checking the correct procedures. This gives the PRO tremendous flexibility to deal with radical changes in sailing conditions or weather.

8. Communicate well with the competitors.  The competitors need to understand the actions and intentions of the Race Committee, so the Sailing Instructions need to be very clear about how competitors will be notified of their starts, what marks are to be used for their fleets, and the schedule of races. If the Race Committee makes adjustments on the water, there needs to be a clear procedure (specified in the Sailing Instructions) for notifying the competitors of the changes.

9. Communicate well with all members of the Race Committee team.  This begins before the regatta with the PRO clarifying his expectations and defining roles and duties for all the members of the team. All variables should be anticipated and discussed in advance. Procedures should be reviewed. The language for discussing things should be clarified. Are wind direction and mark locations defined by compass direction, compass bearing, or simple right and left? Are right and left as viewed by the PRO or by who ever is speaking? Radios should be checked both on shore and on the water, and even then, back up radios or cell phones should be in each boat.

10. Practice, practice, practice.  It is great if the entire Race Committee team can work together at least once before the regatta, but any experience with any of the above techniques develops expertise, and every little bit helps.

Thursday, July 15, 2010

Communication with the Race Committee

Last weekend I was at a regatta, and before the first race, I asked the Race Committee to confirm my understanding of the course. Their response was to point to a placard and say “course 6.” Well, that was helpful. If I had known what course 6 was, I wouldn’t have been asking the question. I realize I was a dolt for not having committed the 7 different courses in the sailing instructions to memory. I was even more foolish for deciding that there‘s no good way to carry reading material on a laser. And I was an irresponsible competitor to have tried to depend on the kindness of strangers to explain what had already been explained clearly enough in those sailing instructions next to the regatta tee shirt in my car. Clearly I deserved to be punished.

Needless to say, I was. The convergence of my reckless negligence with the unlikely good fortune to be leading the first race led to the inevitable tragedy of my snatching defeat from the jaws of victory. To finish the course, I managed to sail upwind back to the start line, while the competitors way behind me sailed to the real finish line which it turns out was not nearly so far upwind. While sailing to the “correct” side of the course, I succeeded in sailing around the real finish by so far that I didn’t even see it. Subsequently returning to the real finish, I recorded a 5 and was grateful for the small laser turnout for the regatta.

I get it - understanding all the sailing instructions is part of racing. But really! Is it too much to ask the race committee to explain their unique course designations to a visitor?

This all leads to the general question of how much the Race Committee should communicate with the sailors. At pre-race skippers’ meetings, it has been standard practice for years for the PRO to answer questions with the magic, unhelpful phrase “refer to the sailing instructions.” This has always impressed me as being unfriendly, if not arrogant. It suggests a tone of seriousness or gravity that is contrary to the expectations of most of the sailors I know. For most of us, this is supposed to be fun.
“Refer to the sailing instructions” sounds like homework, when we are looking for recess.

I realize that the thinking is that the PRO or Race Committee should be careful not say anything to contradict the carefully written sailing instructions. While there is some merit to this reasoning, it seems to me that it goes way overboard for any but the most serious high stakes regattas. The risk of offering explanations and clarifications to the instructions is that one could actually increase confusion or introduce contradictions that then could result in some disastrous consequence that in turn could cause a protest or even skew the results of the event. Does that seem likely? Are the explanations really likely to be so bad that they would do more harm than good? In a time when there is a need to attract more people to sailing, what is more important – covering for the remote possibility of an imperfect explanation by the Race Committee or establishing a friendly atmosphere where everyone enjoys the sailing experience?

One of the high school coaches I work with always tells the sailors “if you have any questions, ask; if you are confused about the course, ask the race committee – it’s not supposed to be a mystery.” I know that I would be happier if events were run with this philosophy. I admit that I was the stupid one last weekend, but who wants to win or lose because one of the sailors misunderstood the course?

Friday, July 2, 2010

Multi-Class Regatta with No Waiting Time

I have been to many multi-class regattas where three or more classes share the same starting line and the same course. The one common characteristic for almost all of them is that they have lots of waiting time - long, wasteful, and seemingly unnecessary waiting time. Last weekend I finally went to one that broke the mold. With four classes on the same course, the races for each class were started as promptly as if there was no one else on the course. Major kudos to Duxbury Yacht Club.

I have to admit that in the last few years I have become very impatient on this subject. Aside from personal psychological deficiencies, the blame goes to coaching high school sailing and laser sailing, especially frostbiting. High school sailing is always short course racing, and a good sailing day is filled with many races. (College sailing is similar in this respect.) The fleet race regatta we host typically has 12 races with sailors returning to shore to swap boats every two races. If the course to shore distance were less, we would do 16 races. I run an intramural regatta twice a year where there are 7 – 9 races in a two hour time frame. Laser frostbiting works the same way. Our high school head to head team race events have five races in the same two hour window.

The reasons for these efficiencies are fairly obvious. Frostbiters get far colder when waiting than racing, so nearly constant racing is the prescription for greater comfort. (I acknowledge that for most of the world frostbiting and comfort are antithetical.) Many places follow more or less the same format in summer racing because it is simply more fun to race than to wait – especially in a laser. In high school racing, the minimization of down time is related to the short, little attention spans of students culturally trained to have ADHD. If they aren’t focused on the coach-guided activity, they drift into never-never land, and they are hard to recapture.

Having experienced a piece of the sailing world with faster paced racing, I have very little interest in going back to the slower pace of larger boats. The fun of racing just seems to overshadow the relaxation (boredom) of milling around and waiting. It is even more interesting and challenging to be the race committee in these situations.

Despite my impatience, I can recognize that my enlightened opinion might not be the enlightened opinion of others. The majority of the sailing world seems to have little interest in the seeming hyperactivity of nearly hypothermic sailors and inattentive high school students. Last summer I wrote about A Three Race Regatta?! where the Flying Scot racers were satisfied while I was mystified – 3 races in 2 days? At the far end of that spectrum is the America’s Cup where one race a day after hours, maybe days of anticipation, is all the excitement anyone can handle

It’s certainly a good thing that sailing contains a multitude of options allowing people to enjoy the sport in very different ways. But occasionally there is a clash of the different worlds within the sport. In those instances, it is surprising how little we seem to understand each other. Last spring our team sailed in a regional regatta where teams qualified for nationals. It was hosted by a major yacht club that was unreasonably generous at making their very upscale facility available to questionably responsible high schoolers. However, when it came to the racing, their course was a mile from the club, sailors in the second fleet were stationed on a large float to wait in the wind and the rain, and the first attempt at a course set-up had a one-mile long windward leg that looked like it would yield 45 minute races. Can’t do many of them in one day! How could they fail to understand the courses used in high school sailing when they were the perfect host in every other way? How could the high school organizers fail to make their expectations clear? Different worlds.

Multi-class regattas where lasers are invited present a similar opportunity for a clash of different sailing worlds. Usually the world I live in is the loser in such a clash. But Duxbury was different. The differences in the class of boats were striking – quick little Lasers, comfortable but lumbering Flying Scots, Marshall 15 cat boats that are fiberglass re-makes of New England boats of the 19th century, and Pintail 25s that look a bit like a plasticized Herreshoff design. Yet with right length courses and the proper spacing between fleets, there was virtually non-stop racing and no interference between boats of different fleets. For the lasers, a few more races than five might have been desirable, but overall it was a great day of racing. Sailors from the other classes seemed to be similarly satisfied. If there were compromises, they were the right ones as the race committee expertly bridged the gaps among very different classes. Kudos again to Duxbury Yacht Club.