FD Main changes ?

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Re: FD Main changes ?

Postby Sjors on Sun Mar 07, 2010 12:04 am

I agree with Sparky, the choice of cloth for the mainsail should have been freed, like, ten years ago. The sooner the better.

For the genua I would want better information so I would suggest a trial period for three teams during one season (at leats 6/7 regattas)in local events(no maior championships). After that trial period, IF those three headsails are still good to be used by teams in the back of the fleet, we can talk further.

The class will appear much, much more up to date with modern laminated sails. And this will be more appealing to younger teams.

As for the bigger mainsail; I think this would really help downwind with performance. It could really make the differance between "being stuck between two waves" and "planing all the time". But upwind the difference will be marginal, the "go home" point will be earlier, the 8,5 kg carbon mast will be to breakable. And my biggest objection is the change to the beautifull classic FD-shape.

I would not like to consider double trapeze, genaker, side rigging, huge mainsail, longer mast and that sort of change, just because the general shape of the boat is not something I would change. There are plenty of skiffs that can match your needs for more adrenaline, but non of them can finish a race in Bft 7.

These are just my opinions, always interested to hear opposites. Love the discussion ;)

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Re: FD Main changes ?

Postby matbard on Sun Mar 07, 2010 8:25 am

I totally agree with Sparky and Sjors!
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Re: FD Main changes ?

Postby Toby on Tue Mar 09, 2010 1:48 pm

sparky wrote:Hi Toby,i propose this range like a medium range,you taught me that the sails made in laminated fabric use range much greater than those made in Dacron.The laminate that i have used for trial have very good performances also in light wind and it's no heavier than a Contender 3.8 oz.
My sailmaker, Be1 sails,can offer the same price for laminate sails than a dacron sails,with the experience derived from America's cup in San Diego with North Sails and more more sails maked for IRC and ORC,and told me that a good dacron costs more than a good laminate.
If you're a racer, now this is happening in Italy, at least every 2 seasons the sails are changed by almost all the crews, and the best crews change them every season,and I think that the same happens in Germany or in Nederland.
Next week we will made a complete set of laminate sails at same price than dacron for trials.


I think we need to look at the two issues here, the issue of life expectancy against price and the appearance of the boats using the sails.

Firstly the life of the sail, only prolonged testing will show if the laminates really last as well as a Dacron sail, this should be carried out in a number of countries with varying conditions. I have a strong feeling what the outcome will be, but if the class is genuinely interested the a full tests should be undertaken. This will require different weights of laminates to be tested and the costs of the sails should be known from the outset. I agree that serious racers replace their sails at least once a season, but not everyone can afford this luxury. There are those that don't attend the major events who make sails last a lot longer. These people are also part of the class and should be given some consideration.

Price, I'm sorry but I cannot agree that laminate cloth is cheaper than Dacron, I know what cloth manufacturers charge and I have not seen a cloth suppliers price list where a laminate is cheaper than the comparable Dacron. I appreciate your sail maker has a lot of experience, so do the companies I have worked with. Parts of my company also have a lot of Americas Cup experience and a vast amount of other big boat success as well, however this does not directly apply to the dinghy market. The requirements of sails and the way they are used is different and this has to be dealt with differently. I am guessing that your sailmaker is keen to get laminate sails out and being used and tested and as such will offer competitive prices, I cannot see how the margins for the sail will be viable in the long term.

Appearance? Quite simply do we want to change the look of a classic boat? The beauty and appeal of the boat is enhanced by it's classic appearance and this is in part due to the white sails on the boat. I am not convinced just changing the colour of the sails will make the boat look more modern. We have a big hull with obviously dated lines and a very dated rig layout... no cloth change is going to hide this. Lets celebrate what we have!

I am writing this as a lover of FD's, not as a salesman. If I had my salesman's hat on I would be pushing for laminate sails as this would level the playing field for all sail makers as we would all have to develop new products, making the market wide open.

If the majority feeling in the class is for the change then as I said earlier please lets see some full test results from a number of countries and manufacturers, I will of course fully support this effort with an open mind..... In the mean time my love of the boat I sail says don't change it!
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Re: FD Main changes ?

Postby Sjors on Tue Mar 09, 2010 4:17 pm

Dacron will still be allowed won't it?
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Re: FD Main changes ?

Postby Toby on Tue Mar 09, 2010 5:34 pm

Sjors wrote:Dacron will still be allowed won't it?


I am sure Dacron would still be allowed, and change would be made to extend the cloth list and allow laminates as well.

Assuming my thoughts are correct, there will be a short term advantage to having a lamiante sail. They will be more stable in shape and potentially lighter. So the for time when the sail is in good condition the stability of shape and lighter weight will offer a perfromance advantage however this will be lost as the cloth deteriorates and the film and the fibres break down when tacking and flogging. Once this happens the better life expectancy of the Dacron will offer better performance.

What this means is that people with lots of money will be able to buy boat speed....
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Re: FD Main changes ?

Postby sparky on Tue Mar 09, 2010 6:30 pm

So according to your assertion,the FD would never have had the carbon mast,( much more fragile than alu ),the centreboard and rudder carbon made,to use carbon as a building material.
At last european championship in Croatia,almost all crews had carbon mast, more expensive than alu (double price than alu)and no more performant than alu in light wind,the same for centreboards and rudders (more expensive than wood or vtr).
I remind you that the classic boat like Finn,5o5,and many others use laminate sails since much time and the evolution of materials in those classes is gone symmetrically in both directions,for mast and sails.
Why you use Kevlar or Dyneema sheets? You can use polyester ropes.............and wood boom........ :mrgreen: :shock:
Only in FD the sails remained at 40 years ago for a reason that I can not understand,although the constant evolution that occurred in the class in the last 30 years.
I'm not saying to change the spirit of the boat,no changes at sailplan,no bigger spinnaker,no idrofoils,no gennaker, but to bring the boat to the current technology in all and not just for certain things,without looking for excuses not supported by facts.
If you use the same old dacron,why to use a carbon mast? Why to spend so much money for a carbon mast without having all benefits? I find it a contradiction or a non sense...
FD is not a poor class , or at least in countries where the class is still very much alive like Germany,Nederland or Italy, nobody is having trouble to changing masts, centreboards,rudders or sails, if all this will be more performant.
I think the sailmakers have little desire to invest in a class that in their home countries is less common and the political supremacy of certain countries don't permit to others to pursue new projects.
What do you think Mr.Mader would say if tomorrow will arrive someone who could build an FD more performant at a lower cost? Maybe in fiberglass.........
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Re: FD Main changes ?

Postby Jamie on Wed Mar 10, 2010 1:21 am

sparky wrote:So according to your assertion,the FD would never have had the carbon mast,( much more fragile than alu ),the centreboard and rudder carbon made,to use carbon as a building material.
At last european championship in Croatia,almost all crews had carbon mast, more expensive than alu (double price than alu)and no more performant than alu in light wind,the same for centreboards and rudders (more expensive than wood or vtr).


I'm not sure I quite see how you are connecting the use of laminates with the decision to use carbon for other elements of the boat. Yes the use of carbon in masts and foils is a little more expensive, a lot more in the case of the mast, but more fragile? perhaps a little in the early stages, but masts are developing and soon they will not be.

As I see it masts and foils etc are a seperate issue as generally you only buy them once. unless there is some catastrophic incident. And then you might claim from an insurance. Sails are considered (By the look of this thread anyway) a disposable item, new sails every year! (My newest sail is 5 years old and is still being worn in. nevertheless it makes sails a different issue to foils and masts.)


sparky wrote: I remind you that the classic boat like Finn,5o5,and many others use laminate sails since much time and the evolution of materials in those classes is gone symmetrically in both directions,for mast and sails.
Why you use Kevlar or Dyneema sheets? You can use polyester ropes.............and wood boom........ :mrgreen: :shock:


The classic boats like the 505 and finn have got laminates and carbon and yes they have developed in a symetrical fashion as you say. However I would consider those classes very different. the finn is a singlehander, no slot aerofoil to worry about just one big sail, so laminate makes perfect sense. The 505 has moved to laminates and allows them on both head and main sails as have the fireballs, the common thread here is that they have a large main and a small jib. So the main takes more of the load upwind and the jib takes (I would asume) much less abuse through the tacks than the FD's genoa. The laminate stability on the main is therefore an advantage for the 505, however given the amount of the FD main that is backwinded by the genoa upwind I question what advantage puting a laminate up would give. As Toby says, lets test and find out, I am more than willing to be proven wrong on this point.

As for laminate genoa I would think that it would provide advantage untill you had run it in and out of the furler a few times and tacked with it. After that I would suspect it would degrade much faster than a dacron sail. Again though, more than willing to be proven wrong, lets go and test them.


sparky wrote:Only in FD the sails remained at 40 years ago for a reason that I can not understand,although the constant evolution that occurred in the class in the last 30 years.
I'm not saying to change the spirit of the boat,no changes at sailplan,no bigger spinnaker,no idrofoils,no gennaker, but to bring the boat to the current technology in all and not just for certain things,without looking for excuses not supported by facts.


I support the idea of developing the class with modern tech etc. However I don't like the, "everyone else has done it so we should too" argument. There are things that work for some but not others. We have to remember that the FD rig is something of a design cul-de-sac in dinghy racing. If the massive overlapping genoa was a excelent idea in terms of dinghy rigs then more boats would have them. As such comparing the FD to boats of a similar speed (505's) is only of limited usefulness in gauging what would work on the FD. We have to test the innovation, and I suspect we would find problems in the FD that the 505 doesn't have. This doesn't mean we should not do it, it just means we need to be careful about testing innovations like laminate sails in our fleet. Only then will we know if it is a good idea to adopt them within our fleet.

sparky wrote:If you use the same old dacron,why to use a carbon mast? Why to spend so much money for a carbon mast without having all benefits? I find it a contradiction or a non sense...


Why are we using that old sail technology? engines have been around for over a century now.

Spending money on sailing on every possible level a ridiculous thing to do, but we do it anyway.

There has to be a line drawn in the rules somwhere, I look at the rules and I rationalise it as modern tech carbon etc for every long term purchase item and stick with cheaper, and yes older technology for the disposable items on the boat. I'm happy with that as a rationale for the rules. But it is an area where there is no real right answer, just thats where the line is at the moment.

sparky wrote:FD is not a poor class , or at least in countries where the class is still very much alive like Germany,Nederland or Italy, nobody is having trouble to changing masts, centreboards,rudders or sails, if all this will be more performant.

However large rule changes are likely (I would think) to cause the smaller fleets to contract and become less competitive in international competition doing overall damage to the world fleet. potentially contracting the competition back to the few nations: ESP, GER, ITA, NED. There are a number of one boat fleets out there, and a number of fleets that have only a handful of boats, these are likley to be damaged by big rule changes.

sparky wrote: I think the sailmakers have little desire to invest in a class that in their home countries is less common and the political supremacy of certain countries don't permit to others to pursue new projects.


If there are certain countries not permitting developments then start the research development somwhere else and show them how well it works. Once it looks like a better idea than the ones they have had then it'll get tried really quickly. Thats how to get any idea moving forward surely? If no one is willing to try the ideas then perhaps there is some indication of how desirale the idea is to start with. Big Ideas often take one determined person to get them going... so lets see some testing data.

sparky wrote:What do you think Mr.Mader would say if tomorrow will arrive someone who could build an FD more performant at a lower cost? Maybe in fiberglass.........


Does this really matter to this discussion? Mr Mader is one supplier, yes he is a big one, but does he have any more affiliation to the FD class than any other builder, sail maker, chandler or foil maker? The best product should be bought, be it Mader or not. He as a commercial entity should understand that and as such he has created the best product for a number of years. If someone better comes along and Mader cannot improve his product then thats just tough.

Frankly if another builder of FD's wewre to truely challenge Mader dominance then it should be better for the class as it would promote competition for customers. and competition breeds better deals for the customer. So why not encourage it?
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Re: FD Main changes ?

Postby Toby on Wed Mar 10, 2010 9:58 am

sparky wrote:So according to your assertion,the FD would never have had the carbon mast,( much more fragile than alu ),the centreboard and rudder carbon made,to use carbon as a building material.
At last european championship in Croatia,almost all crews had carbon mast, more expensive than alu (double price than alu)and no more performant than alu in light wind,the same for centreboards and rudders (more expensive than wood or vtr).


As Jamie has already said, I really don't see how you can compare the use of carbon for masts with laminates for sails... these are completely different materials being used in completely different situations! I have never made an assertion that would imply that we should not have had carbon masts due to the choice of material. The properties of Carbon have proven themselves to be more than suitable for the manufacture of spars.

Before you say it, I know laminate sails have been proven to work very well, but not for all types of boat. I am not denying they work well, my particular concern is this particular application.

Cost does worry me a bit as well, you are fortunate to be part of one of the more afluent FD fleets in the world. Any changes made to the rules should be done with the entire fleet in mind. I am not convinced making the boat ever more expensive is going to help the fleet sustain it's numbers or grow in the future.

sparky wrote:I remind you that the classic boat like Finn,5o5,and many others use laminate sails since much time and the evolution of materials in those classes is gone symmetrically in both directions,for mast and sails.


OK, I agree other classic boats are using laminate sails, but lets look at this in more detail. The big concern I am raising here is about the life expectancy of headsails not mainsails. So the Finn does not really count. But before I move away from this I suggest you look at the price of Finn sails and then talk to the fleet about how many they use a year!

The 505, I agree does use laminate headsails, but not very often. Why? Simply because they do not last! Most people who get them feel that the performance will drop off in one regatta if it is windy! One or two manufacturers are experimenting with composite genoas with a laminate luff and Dacron clew sections... I can provide a long list of other classes who have opted for Dacron headsails even though laminates are allowed.

sparky wrote:Why you use Kevlar or Dyneema sheets? You can use polyester ropes.............and wood boom........ :mrgreen: :shock:
Only in FD the sails remained at 40 years ago for a reason that I can not understand,although the constant evolution that occurred in the class in the last 30 years.


We use the more modern ropes because they have been proven to be the best material for the job, simple...

Although outwardly we are still using the same white sails we have been using for 40 or 50 years, the fact is that the materials have been undergoing massive development during this time and they bare no resemblance to the early cloth that was used. The preformance of the current cloths is so far superior to the early cloth they could not even begin to be compared to each other.

sparky wrote:I'm not saying to change the spirit of the boat,no changes at sailplan,no bigger spinnaker,no idrofoils,no gennaker, but to bring the boat to the current technology in all and not just for certain things,without looking for excuses not supported by facts.
If you use the same old dacron,why to use a carbon mast? Why to spend so much money for a carbon mast without having all benefits? I find it a contradiction or a non sense...


Please do not misunderstand my point. I am not against bring the class forward and introducing new materials and technology. My concern is introducing materials and technology that will benefit the class. This needs to be done with a full program of testing undertaken by a wide selection of countries and boats.

The Carbon mast brough a whole range of benefits to the class, not just performance. The gain to be had by changing to laminates is only a relatively small part of the gain.

sparky wrote:I think the sailmakers have little desire to invest in a class that in their home countries is less common and the political supremacy of certain countries don't permit to others to pursue new projects.


This could not be more wrong! By introducing new materials, new designs will have to be produced. This means that the supremacy of any one sail maker would be removed as we would all have to start again and the first person to produce a new fast design will gain the advantage! From a business point of view this would be a great oppotunity.

I accept that in the UK we do not have many FD's racing, but this is not influencing my decisions. North One Design International is exactly that an International company supplying sails all over Europe.


OK, to try and clarify some points here, my main concerns are:

a. Laminate headsails may have a shorter life expectancy due to rapid breakdown of the laminate due to tacking and furling - Intensive testing required
b. Laminate sails will add cost to the boat - comparative pricing required
c. I am unsure whether the 'new look' would suit an FD

On the plus side I can see a stronger argument for laminate mainsails because:

a. They will be lighter and stronger than the current sails.
b. The shape will be more stable
c. The life expectancy will be comparable to the current mains.

I hope this clears up some of the confusion!
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Re: FD Main changes ?

Postby Jonathan Clapp on Wed Mar 10, 2010 4:22 pm

Sjors wrote:Dacron will still be allowed won't it?


haha, of course, cotton is still allowed !!
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Re: FD Main changes ?

Postby sparky on Thu Mar 11, 2010 5:15 pm

Toby wrote:a. Laminate headsails may have a shorter life expectancy due to rapid breakdown of the laminate due to tacking and furling - Intensive testing required
b. Laminate sails will add cost to the boat - comparative pricing required
c. I am unsure whether the 'new look' would suit an FD

On the plus side I can see a stronger argument for laminate mainsails because:

a. They will be lighter and stronger than the current sails.
b. The shape will be more stable
c. The life expectancy will be comparable to the current mains.

I disagree with two points:
My sailmaker,I repeat,my sailmaker,can offer at the same price than a dacron sails,laminate sails with reinforcements with continuous threads.
The price is 650€ for genoa,780€ for mainsail cross cut ,900€ for biradial mainsail.
With those prices I think these are no more expensive than a dacron.
The second point on which I disagree is the new look.
I think the laminate sails give to FD a much more aggressive and technologic aspect.
I tried a laminate genoa and I have to say that the look was really aggressive and it makes the boat really modern although the projet dates back to 1953.

In this summer we will test a complete set of laminate sails in minor events and after I will tell you if and how the laminate of headsail will be break.
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