Fastest Sailboat on the Planet!

  • Thread starter Thread starter Doug Lord
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Hey liberals.........The trench that was dug was straight......the shore line in luderitz is NOT straight. Again for the 10th time Kiters need to sail a straight line cause we cant use GPS like hydroptere.

Hmmm ... are you saying that the GPS would show 500M on a curved track? If you took the time to understand how the GPS records are verified they are a straight line also. Nothing prevents a kiteboard, sailboard, or boat from sailing a straight course for a record. It may be news to you, but a straight course can be sailed outside a trench.

The shoreline at Luderitz is not straight, so what. It does not prevent a straight course. It just means that parts of the course will be less protected than other parts of the course.

If the kiteboards don't need the artificial flat water provided by the trench, why do they increase risk and sail in it?

Either the kiteboards would be just as fast without the trench or they need the trench to reach record speeds. The fact they use a high risk trench would suggest that they cannot reach record speeds outside that artificial environment.

You haven't taught anyone anything. Emotional responses to logical questions do not prove a point.

I'm not a Hydroptre supporter or a kiteboard hater. I would just like to see the course available to all so the comparable conditions required by the rules exist.

Trench records cannot be compared to open water records. At this point in time the kiteboards and sailboards are faster in comparable conditions, so why use the trench unless you intend to gain an unfair advantage?
 
I don't have a problem with the "boat" thing. You don't help the fairness effort by coming back to this. If it makes you feel better, fine.

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The way language is being murdered around here it[see below] seemed appropriate and did make me feel better, thanks.


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Well, its clear to me that the kiteboards are not "boats" as it should be to anybody. And that means the Hydroptere is still the fastest sailboat in the world over 500m and over the nautical mile. Thanks for helping me out, Steve.


Ditch the Trench!
 
If the kiteboards don't need the artificial flat water provided by the trench, why do they increase risk and sail in it?

Either the kiteboards would be just as fast without the trench or they need the trench to reach record speeds. The fact they use a high risk trench would suggest that they cannot reach record speeds outside that artificial environment.

You haven't taught anyone anything. Emotional responses to logical questions do not prove a point.

The Kiteboards have demonstrated the ability to go record speeds without the trench, they just have not done it to WSSRC rules. It is harder for them to comply with WSSRC GPS rules than boats.

It has been suggesting that they could not do record speeds off of a straight beach. This seems to be more of an emotional position than anything with a technical basis.

Again, most Outright record holders since 1988 have sailed in a trench. YPE, Sailrocket, MI sailed just offshore of a beach.

I have agreed that that the kiters could do better, especially with the berm. However, the anti-trench position has not shown any real reason why a trench is not comparable to just off of a beach or along a jetty.
 
The Kiteboards have demonstrated the ability to go record speeds without the trench, they just have not done it to WSSRC rules. It is harder for them to comply with WSSRC GPS rules than boats.

Here I agree 100%

One of the reasons for the trench is the shore based timing system. I'm sure that smaller GPS packages that the boards *could* use are available. All that is required is for the WSSRC to accept the data.

Remove the requirement for shore based timing and you remove the only logical justification for the trench.

I'll wager that you could lease a Trimble unit and a fast powerboat to demonstrate the accuracy of a smaller GPS package for less money than the cost of leasing a ditch digger.

I would support an effort to get board friendly GPS recorders certified by WCCRC if it would put an end to the ditch silliness.

When you are in a perceived battle with competing technology, the last thing you want to do is provide ammunition for the other side to question your results. Sailing outside the ditch and retaining the record would end the debate.

Again, most Outright record holders since 1988 have sailed in a trench. YPE, Sailrocket, MI sailed just offshore of a beach.

Just because there is a tradition of using trenches does not make it less of an exploitation of a loophole in the rules that gives an advantage to narrow, shallow draft vessels.

If you chose technology that forces you sail in deeper water then that is a price you pay. The boards can sail just off the beach as can any other planing craft. If they don't require the trench to set record speeds, why do they use it? Why go to the expense of digging and maintaining the trench if they can set records without it? The simple and obvious answer is that they cannot set the records without the trench. If it is an accuracy of timing issue, developing smaller GPS systems will level the playing field. If it is a smooth water issue (as I suspect) they are not playing the same game as non-board speed sailors and the records are not comparable.
 
seems like a lot of people have asked you that if the ditch is so irrelevant to your achievements then why not go into the same conditions everyone else races in and prove your still the fastest

How do we mark out a 500m course in the open sea so kites can race against Hydropetere?

seems pretty clear that on open water over the mile course the kites don't stand a chance ( 30% slower )

How is this clear?

so whats the deal with this ditch that it enhances your speeds so much and how is external speed enhancing mechanisms legal under the "present" rules

How do you figure that it enhances speed 'so much'?
Imagine this, you have a group of people who want a crack at setting speed records, for these speeds to be ratified you have to have WSSRC officials and equipment set up in a particular place, now this all costs a significant amount of money, surely you want to try and get as many runs in as you can in favurable conditions, a trench allows this to happen


best of luck but how about if we all run a race on the same track and no, not one specifically designed to favor a particular player

Every challengers run has been tailored to specifically favor themselves. Just Imagine how high the record would be if everyone (not just Hydroptere) could have GPS results ratified, there wouldnt be any need for a ditch at all then. Or maybe Hydroptere should have to verify their speed again over a set 500m course?

cheers as always
B

Also what is this mystical wave canceling machine, maybe it could be modified in some way to produce electricity in third world countries?
 
Here I agree 100%

One of the reasons for the trench is the shore based timing system. I'm sure that smaller GPS packages that the boards *could* use are available. All that is required is for the WSSRC to accept the data.

Remove the requirement for shore based timing and you remove the only logical justification for the trench.

I'll wager that you could lease a Trimble unit and a fast powerboat to demonstrate the accuracy of a smaller GPS package for less money than the cost of leasing a ditch digger.

I would support an effort to get board friendly GPS recorders certified by WCCRC if it would put an end to the ditch silliness.

When you are in a perceived battle with competing technology, the last thing you want to do is provide ammunition for the other side to question your results. Sailing outside the ditch and retaining the record would end the debate.



Just because there is a tradition of using trenches does not make it less of an exploitation of a loophole in the rules that gives an advantage to narrow, shallow draft vessels.

If you chose technology that forces you sail in deeper water then that is a price you pay. The boards can sail just off the beach as can any other planing craft. If they don't require the trench to set record speeds, why do they use it? Why go to the expense of digging and maintaining the trench if they can set records without it? The simple and obvious answer is that they cannot set the records without the trench. If it is an accuracy of timing issue, developing smaller GPS systems will level the playing field. If it is a smooth water issue (as I suspect) they are not playing the same game as non-board speed sailors and the records are not comparable.

There deffinitly are GPS unis that are available and suitable for this purpose, if they could be ratified I am sure there would be a lot mor kiters pushing for and breaking the record, all around the world...
 
Here I agree 100%

If they don't require the trench to set record speeds, why do they use it? Why go to the expense of digging and maintaining the trench if they can set records without it? The simple and obvious answer is that they cannot set the records without the trench. If it is an accuracy of timing issue, developing smaller GPS systems will level the playing field. If it is a smooth water issue (as I suspect) they are not playing the same game as non-board speed sailors and the records are not comparable.

Smooth enough water along a reasonable course and timing issues are the reasons.

Smooth enough water is why Longshot, YPE, MI & Sailrocket sailed where they did.

Better straight or slightly curving beaches at good angles to lots of offshore wind would be great. These are kind of rare and this is precisely why people have done what they have done.

Demanding either open water or along a shoreline seems to be the desire. If you go all the way to natural settings only, you take away a whole lot of choices with no technical basis. If you allow non-natural, where do you draw the line. Just how much shoreline adjustments are allowed. Or do you say that only shorelines/structures not adjusted "for speedsailing" are allowed. This would allow running along an existing jetty, down a ship channel, or along some other man made structure. But again how would you justify any of this on a real technical basis.

Trenches seem suspicious at first glance. Questioning the "comparable" aspects is a valid exercise. Just do not get emotional and make claims that can not be supported by facts or technical analysis such as "The simple and obvious answer is that they cannot set the records without the trench".

Trying to go all of the way to fully natural settings only just does not make sense on any real technical basis. I am sure that a vote by all real contenders would not support natural only. Trying to pick and choose allowed adjustments would be real messy for the WSSRC. Re-thinking choices when competitors make adjustments (upwind berms at Luderitz) is easy to suggest and I hope they will do better next year.

On an emotional level, I could see a rule that tried to limit adjustments such that the results mimic natural settings above the water line. I just see the details becoming incredibly messy, subjective and unsupported by technical basis.
 
How do we mark out a 500m course in the open sea so kites can race against Hydropetere?

They have been doing it at Weymouth for quite some time. :cool:

I think the fact that other speed records have been ratified using smaller units than the Trimble could form a basis for allowing them for sailing records.

The rules require a 1/50th or 1/25th second improvement when 1/100th second shore based timing is used. The improvement is 2 or 4 times the sample rate.

6. MARGINS
In order to establish a new record the new elapsed time must improve on the existing record by a margin as follows:

a. On a course using land based transits and videorecorded timing:

i. Between records claimed on the same course and when the timing positions have not been moved and with equipment recording to 1/100th second, the margin is 1/50th second.

ii. . Between records claimed on different courses or when the timing positions have been changed with equipment recording to 1/100th second, the margin is to be 1/25th second.

b. Where WSSRC approved GPS survey equipment is used, the margin is 1/100th second.

The GPS requirement is 1/100th second for a new record. But the GPS sample rate is 1/10th second.

4. TIMING

A timed run is measured from the difference in the times recorded at the crossing of the starting and finishing lines or by WSSRC approved GPS points of the same fixed point on board to the satisfaction of the timing staff and the WSSR Commissioner on duty.

Where the timing positions are land based, videorecorded timing, which includes an independent time display of the transits shall be used. Otherwise, GPS approved survey equipment, shall be used. Requests for attempts must include full details of the timing system proposed.

In order to facilitate recognition, craft must carry clear identification, to the satisfaction of the timing staff and the WSSR Commissioner on duty.


The following applies when using GPS survey equipment:

a. Receiver logging rates shall be set at 10 Hertz, which results in a GPS position every 1/10th of a second.

The GPS system shall provide time stamp with each position that are accurate to within .001 second.

b. Record claims that include a horizontal position error (hpe) of greater than 0.10 metre (one sigma) during the run shall not be accepted.

c. The nominated start and finish points shall be at least 500 metres apart, plus the hpe at the start and the hpe at the finish.

d. Distance and time may be interpolated between the two measured positions bracketing the 500 metres (plus 2 hpe used in para b above) finishing point. The results are added to those from starting point to the first measurement point bracketing the finish point. For the calculation of distances, GPS coordinates supplied to the WSSRC shall be in latitude and longitude using the WGS84 datum. The WSSRC will calculate the distance as the length of a geodesy on the WGS84 ellipsoid using the Vincenty method.

Getting 1/100th second timing out of a system that records at 1/10th second intervals requires the interpolation in section 4( d ).

You don't need the 1cm position accuracy of a GPS survey system to interpolate the time over 500M measured every 1/10th second. All that is required is a hpe < 0.10M (100 times coarser than the survey system).

55 knots is 2829 cm/sec or 282.9 cm per sample point.
 
Trenches seem suspicious at first glance. Questioning the "comparable" aspects is a valid exercise. Just do not get emotional and make claims that can not be supported by facts or technical analysis such as "The simple and obvious answer is that they cannot set the records without the trench".

This would be easy. Measure the depth of the trench. Measure the size of the wind waves in the trench. Measure the the wind wave height in the same depth of water off shore. If the wind waves are not larger in the same depth of water off the shore, I'll buy the rum. ;)

It is the difference between zero fetch and some fetch. Zero fetch is artificial and not comparable to some fetch.

Deep draft designs have to deal with larger wind waves than shallow draft designs do the nature of wind and wave. Do the boards need more than the natural advantage of sailing in shallower water?

The simple answer is the most likely correct ... Numquam ponenda est pluralitas sine necessitate :D
 
I am sure getting more workable GPS rules is needed and will eventually happen. If nothing else, advancing technology will have to be recognized.

However this really does not help us with the real question. Where should we draw the line on allowed actions to get smooth enough water.

Do we demand either open water only (no chance) or along a shoreline.

If you allow runs along a shoreline, do you go for natural settings only. If so, give me a technical basis of why changes at one location to duplicate features at some other location are not allowed.

If you allow changes to duplicate some other setting, what is not comparable about running down a ship channel or along a jetty. If you run along a jetty, you can actually get a wind screen pretty similar to their berm.

Get close enough to a shore line with a fast drop of that gives you the required depth and you will get the same smoothness you can get in a trench with a similar upwind ground profile.

Allowing a setting similar to natural setting is also not a clean answer to what seems to be desired. When someone goes out and uses Google maps to find a near straight 700 meter natural erosion channel in some delta, marsh or other flat surface, do you just get emotional and say no to a trench because it does not feel right.

Come on, draw some lines & give me technical basis that everyone can live to.

The current rules work pretty good for the real competitors. If you want changes, it is up to you to make your case.
 
this is what I was hoping for
a reasonable well written discussion of the issues

http://www.sailspeedrecords.com/the-course-of-500-m.html

With the exception of the one megabuck project that produced a spectacular huge foiled trimaran, all recent outright record holders and real contenders have run in conditions that sheltered them from rough water.

agreed and the reason these ditches are so popular is specifically because they provide unusually good conditions seldom if ever found on natural water, thus unfairly favoring vehicles that can run in these venues. Also the fact they are running in a ditch is less of an issue than of the berms which shields the riders from drag inducing wind and therefor directly enhancing speeds, same holds true for the wave cancellation system which also directly enhances speeds. It should be pretty obvious to all parties concerned that these external power sources or speed enhancing elements are not allowed. See rule 7 and rule 9

If you want distance from shore, you are getting into territory where the rich and the well sponsored will have a huge advantage. Sounds kind of like the AC we all love and admire so much.


I think what we are after is an adherence to the stipulations of the rules, for instance rule 1 which clearly states that the consideration be made for "comparable conditions" which at present seems to be being ignored, Distance from shore might be decided at say 250' to ensure comparable conditions of any course on any continent thus allowing various sized vehicles and more rather than less people to compete fairly, on a level playing field. At present the ditch environments places an unfair advantage on smaller and demonstrably less efficient vehicles


No one has explained to me how Walvis Bay or Sandy Point are truly different than Luderitz. Sailing just off shore is the only way most "average Joe" speed sailing boats will ever have a chance. If a course is along a natural shore line, or if it is off the shore line of a shipping canal or if it is along a rock jetty, or if it is off of a natural shore line that has been improved is all up to the competitors by the current rules. Please do not propose rules that prevent me from using most of the current sheltered 500 meter strips in my area because they are not natural. Also, there are a few areas where the shore is currently natural, but the water at low tide is probably of insufficient depth. Digging out a course would also get tripped up if only natural settings were allowed.

if a reasonable distance from shore line and obstructions can be agreed on then modification of the shore line will become a thing of the past and a whole new range of contenders will enter the fray as a significantly greater number of venues will open up, These offering comparable conditions. The clarifications of the rules would serve to enhance the sport and widen the range of competing contenders. Obviously at present the vague nature and loose interpretation of the rules is limiting successful attempts to certain types of small vehicles. The objective of the rules should not be to limit the type of craft competing

The anti-trench crowd say that Luderitz is an exclusive advantage one group, but they miss that trenching is well established method open to anyone anywhere. For heaven's sake, look at all of the records set at "Saintes Maries de la Mer Speed Canal, known to windsurfers as The Canal, is a man-made trench near the French Mediterranean coastal town Saintes Maries de la Mer, built especially for speed record breaking sailing by windsurfers" (wikipedia). Although it was built by one group, I am pretty sure it is open to anyone that can use it to their advantage (such as Longshot did).

it might be open to everyone but these trenches are not conducive to all vehicles competing, some simply dont fit either because of depth or because of width, maneuvering limitations or transport costs thus giving unfair advantage to those who's vehicles are benefited by the unusual conditions found there and who can afford to transport there vehicles. which is one reason the rules specifically mention contenders being able to compete anywhere in the world but in "comparable conditions"

The guys at Luderitz could probably achieve identical or better results if they contracted a dredging company to come in and just square off the shore line at the desired angle with a steep taper for water depth such that anyone could run at this location. Given the speed enhancing machinery and topography they have employed and its obvious success in influencing speeds at this venue your suggestion would be most welcome. As long as they ran close to the shore (Like MI at Sandy Point), the water would be plenty smooth. It would improve safety, tides would be a non-issue, and logistics would be improved. They would probably like the results better. For now, they have not seen the need for the additional cost given that trenching is an established acceptable practice that complies with the rules as written. This makes the actual "trenching" NOT CHEATING by definition.

The actual trenching may not be cheating but your detractors have not claimed that it is. What we have said is unfair is building wind breaks that enhance performance and employing external mechanical wave cancellation devices which also directly enhances the speed of vehicles able to fit into the confines of a ditch. Thus favoring one type of vehicle over another.

Actually a long smoothly curving shore line similar to Sandy Point but with less curvature would be ideal for everyone as moving along the course would allow for optimum wind angles. However, wishing for an ideal course does not make it happen. The physical limitations of any given location are what they are as are the costs of trying to make improvements.

My point exactly. There are long curving shallow shorelines on every continent that provide ample venues and on a level playing field, as now everyone must deal with the variables of natural water. It should be more than evident given the overwhelming number of speed records held by only a few types of vehicles that an unfair advantage exists when ditch type venues and specifically when ditch type venues incorporating external speed enhancing equipment are used.

If anyone thinks that this layout would have stopped them from beating the Hydroptere record, please provide sufficient technical justification for your position.

Hydropter crashed in rough water well on its way to smash both the 500 meter record ( whats the tittle of this thread again ) and the 1 mile record. Obviously had this vehicle had access to the type of conditions typical of groomed water it would likely have gone even faster and made the distance. This one fact alone shows that the ditch venues unfavorably advantage smaller less efficient vehicles and force serious contenders to suffer this type of handicap.

I do not like the berm more because it give whiners ammunitions than because of any real impact. Its obviously having an impact given the number of record runs its influencing. This is hardly whining when it so clearly offers unfair advantages. With the wind angles involved, it might have reduced the apparent wind speed at the riders by a few of knots. It also generates turbulence and potentially messes with airflow at the kite. If I had dug the trench, I would have likely piled the dirt on the windward side more from a desire to keep the lee side smooth and less risky for a kiter that looses it & gets dragged downwind. I probably would not have thought about any wind screening functions. However, now that wind screening is mentioned, I do not like berms, fences etc when you consider that someone could indeed engineer structures to both shield a boat while improving airspeed at a sail/wing/kite. As such, I would recommend to the Kiters, that next year they smooth the dirt on the windward side to more closely resembles a typical shoreline. If they want to uses fences etc. for the acceleration lane, they should be careful that such structures do not result in speeds faster at the entry point than their average speeds (not much chance of this). They should also careful consider the need for better end of run provisions for the general safety of the competitors. More width & depth would be to their advantage, but the extra costs/effort must be considered.

this is precisely why a minimum distance off shore must be established so that this kind of chicanery is removed from unfairly influencing results in the future

These would all be enhancements. If anyone thinks that duplicating the effect of running close to a smooth shore line would slow them down, I would attribute this position more to wishful thinking rather than careful open minded analysis.

Your not duplicating the effect at all. what you have done is create so radically dissimilar conditions and made them available to such a limited type of craft that are, as a direct result of this advantage, presently dominating the record books when in fact many contenders exist who are making tremendous advancements in the sport but are not getting the recognition they deserve by virtue of there having to compete under adverse and dissimilar conditions


We must all compete in comparable conditions if and whenever practical and I believe that no particular venue should be allowed that offers unusual advantages and that the use of artificial constructs whether mechanical or topographical that enhance speeds should be legal.

I think once I correct my spelling and grammar I will send this letter off to the commission as a prelude to a formal complaint concerning these types of venues

My bet is they are flooded with complaints but in the name of fairness it seems reasonable to attempt to outline specifically why these types of venues should not be considered for the outright speed sailing record as they do not represent "comparable conditions" as specified within the rules, nor does the Luderitz venue comply with rules 7 or 9 concerning external speed enhancing mechanisms or constructs

my solution would be to stipulate that all venues be natural and unaltered with racers competing no closer than say 300' offshore with all approved venues being capable of holding both 500 meter and 1 nautical mile competitions, that comparable conditions be considered and specifically stipulated by the ruling body and include, wind speed, current speed, wave conditions, and so forth.

essentially in order to expand and advance the sport it will be necessary for the ruling body to stipulate what represents "comparable conditions" and to define a distance from shore for all competitors so that undue influences of topography or wave cancellation devices might be excluded from providing unfair advantages to certain types of vehicles.

In conclusion I'm going to argue that the use of external devises that specifically enhance speeds is a breach of the rules and constitute cheating. I will also be arguing that the use of a ditch represents such a dramatic deviation from natural conditions that it fails to represent "comparable conditions" as specified is the rules and therefor that these times be excluded from consideration in otherwise all inclusive categories

cheers and wish me luck
B

PS I'm not suggesting that the ditches be abandoned but instead that any record set in a ditch be confined to a category that specifies its us and that these records be excluded from the overall speed records based on there failure to adhere to the rules as outlined above.
 
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B

You make a good argument for a separte open water title with you distance from shore option.

Just tell me why closer to shore is not a valid form of sailing, and I will go along with open water only for the absolute record. If a natural shore drops off to 15' deep at 3' offshore, you can drive a pretty big boat along side of it with no problem.
 
Closer to shore someone might find some way to unfairly influence the conditions and create another Luderitz. There just needs to be better written rules so that in a category where everyone is supposed to be able to compete on a level playing field, they actually can. You are right of course that some venues might allow the big boats to come in close but lacking a distance rule has real potential for someone to create a venue that favors a particular kind of vessel again.

I'm really not saying the kiters should not be allowed to compete but if they use venues specifically designed to enhance there speeds that it be considered a separate record and it not be included in the overall speed category or any other that is supposed to be all inclusive.

I also think that external speed enhancing devises of any kind should void any records to date if it can be shown that they were employed in a record attempt.

oh
and thanks for the rational and dignified conversation, its somewhat rare on the internet and I appreciate the opportunity to politely express the issues while considering a real time dissenting view.
 
Doug and Flados if you want to help out feel free to correct any spelling or grammar errors you might find in post # 552 which I will be a draft version of my request for rules clarification and a primer for my official complaint concerning rules violations

Flados if you wish to change any content it seems only fair as I'm sure you were not intending that our conversation go beyond this venue however the discussion presents both sides fairly and I believe the issues presented within it deserve the the ruling committee's attention
 
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