| Re: Another F16 Blast. .. Very Well Done !
[Re: Stewart]
#196267 11/14/09 08:03 AM 11/14/09 08:03 AM |
Joined: Sep 2005 Posts: 893 waynemarlow
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Posts: 893 | What a load of old bollocks Macca, you of all people know how production boats are built, you of all people know that on modern hull designs weight is not the factor it once was, you of all people know that we have been here before and discussed this very issue at length with the out come being, get your "rule change" into print and let the members vote. After all you were promoting that you had a F16 cat and could be a voting member.
I am really not sure raising the weight is to going to help any manufacturer anyway, the Viper is a seriously fast boat within the F16 class even if it is a few kilos " porky ", so if you already have a very saleable item that is doing well then why change it.
Anyway we all know it has over strength / weight beams, dagger boards and rudder systems designed for its F18 sister, perhaps when the volumes come up a little those items could be slimmed down with little loss of strength and reliability and indeed it would be an even greater boat, just gone on a diet.
What my beef mainly is though that Sproat has chosen the soft option of taking the soft handicap, I certainly would consider ballasting up my boat to gain the soft handicap as it really peeved me to be so far ahead of the F18's in the 3 Piers race and then be way behind them on handicap. They of all boats have a real soft handicap in my opinion.
Mind you it does tell us that the weight factor in the handicapping ratings is now out of skelter with the modern hull design, I'm sure Simon will argue against that but from where I sit the manufacturers making over weight porky boats are being given a huge advantage over a manufacturer who is more weight conscious. | | | Re: Another F16 Blast. .. Very Well Done !
[Re: sailfast]
#196269 11/14/09 08:17 AM 11/14/09 08:17 AM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
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Posts: 9,582 North-West Europe | Hi Wouter,
I really don't want to have a polemic discussion,
...
Sailfast, all technical issues have been well researched when we started the F16 class back in 2001. This situation is as it is and has been justified many times over since then. Argueing against well established truths is pointless in my opinion. Since 2004 I personally have a Taipan 4.9 (widened to 2.5 mtr) with a spinnaker and I'm prefectly happy with that design so far. I disagree with anybody who claims that the Taipan can't handle a spinnaker; indeed I experienced more violant pitchpoles while sailing the Hobie Tiger. My own boat uses no carbon fibre or anything and costed me 12500 to build and is still lighter then any Viper version. The reason why the Viper is as it is comes from commercial considerations only, not technical or even costs. It has all to do with available local building facilities, work force expertise and profit margins. Lets not forget that my Taipan is just as much a viable F16 as the Viper F16 is. I haven't broken any major component yet (while being lighter then the Viper) and it was build by amateurs in a shed behind the house. As a result I don't understand why the min. class weight should be raised so as to DISQUALIFY my Taipan F16 in favour of making the younger Viper F16's look better on paper. If a company builds a heavier F16 then that is their decision and their "issue" only. This is allowed under the F16 class rules but it is beyond imagination to ask the other class members/builders to disqualify themselves in deference to such a choice. Anybody still enjoying such an idea in his or her is adviced to make an appointment will a physician or neurologist. Personnally, I feel the Viper is an excellent design that doesn't need any rewriting of the F16 class rules to be competitive or to be marketable to customers. Suggesting otherwise doesn't do the design justice and is higher disruptive to our great little F16 class. But I guess that is the exact intent of some posters here. With respect to Nacra or Hobie not being able to build a real F16 ; -1- That is not our problem, but their problem ! (Apparently even I as an amateur beat them on that) -2- Explain why can Hobie build and market the 100kg or less carbon iCat but not a glass/alu 107-112 kg F16 ? -3- What should the F16 min. weight be when not a single Nacra sloop rigged spinnaker boat was ever certified as being under 150 kg ready to sail ? Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
| | | Re: Another F16 Blast. .. Very Well Done !
[Re: Stewart]
#196270 11/14/09 08:23 AM 11/14/09 08:23 AM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
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Posts: 9,582 North-West Europe | If the top three teams want to say.. they are free to post.. However their words are no more or less than any other members..
And who is to say that they do not support the current F16 rule set ? I never heard JC for example complain about the F16's being to lightweight (or fragile). We may find that the opinion to raise minimum weight is also a minority there; among the top racers. Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
| | | Re: Another F16 Blast. .. Very Well Done !
[Re: macca]
#196277 11/14/09 10:42 AM 11/14/09 10:42 AM |
Joined: Jan 2005 Posts: 6,049 Sebring, Florida. Timbo
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Posts: 6,049 Sebring, Florida. | I am at home right now but in an hour I will be heading back to Gulfport to watch today's finish of the GC, and I will try to track down the top 3 and ask them what they think. Remember, the number 1 and likely winner is a Viper dealer, number 2 races F18 and is on a borrowed Viper, number 3 is on a Viper as well and depending on today's finishes, number 4 or 5 is Greg Goodall.
The Viper is a great boat, no doubt, nobody has ever said it was not, including me, the debate here is WHY would you (Macca) want to raise the F16 Class minimum wt? And if it were raised, what happens to the Taipans who were the first F16's? Would you have them carry 20 Kilos?
And what if Matt can build a Falcon to say, 102kg, should we then LOWER the class min. wt? It's the same (stupid) argument.
Should the Builders set the rules or the CLASS MEMBERS?
Sounds like Macca wants Nacra rules all over again...
Blade F16 #777
| | | Re: Another F16 Blast. .. Very Well Done !
[Re: sailfast]
#196288 11/14/09 01:45 PM 11/14/09 01:45 PM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
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Posts: 9,582 North-West Europe | For what i know, you are a lot to sail in 1-up.
in 2-up loads are really differents, in 2-up it's more difficult to have a boat at weight.
Your first assumption is wrong as I've sailed almost exclusively 2-up for the first 2 years of owning my Taipan F16. Your second assumption is also wrong in the sense that while the stresses are indeed different, a 107 kg glass/alu F16 can still handle them very well. Thirdly, both setups were EXTENSIVELY researched when we formed the class rules and we found no technical reason to increase the min. weight beyond 107 kg. That means you can get down to that weight by using plain glass/vinylester/alu construction against justifiable cost Without new class regulation i'm affraid in few years boats will be expensive.
We are almost 9 years down the road already and the F16's are STILL 15% or more cheaper then the F18's. I can buy a competitive F16 for 15.000 Euro's while an competitive F18 does 18.000 these days. Up till now alu masted F16's won 2 global challenges against 1 carbon masted F16. The wins are respectively 2007, 2008, 2009 : VWM Blade, a Stealth and a Viper. You can't get a more balanced outcome then that. Fear is a undependable consultant, facts in life thus far simply do not provide a basis for such angst. There have been dire warnings of impeding doom ever since our inception and still the F16 class survives and grows. If there is one thing that I learned from sailing then it must be to not fiddle about with the trim of my sails when I'm ahead. I feel the F16 class is much more helped by this advice. We should strive to only find solutions to actual problems and not the other way around. Like said A Viper full carbon will be at weight, faster ...but expensive.
Personally I disagree here; I feel that very little difference between a 107 kg F16 and a 120 kg F16. Weight is simply not such a big factor on modern spi equipped catamarans as was the case in the old days (Dart 18 , hobie 16 etc). We also see this when 125 kg crews race against 155 kg crews. I also don't believe a FULL carbon Viper is needed to get down to weight. By general claim the Viper hulls are what ? 26 kg ? A 110 kg Blade or Falcon has hulls that weight 24-25 kg and all boats (Viper, Blade, Falcon) use the exact same mast sections. The weight difference between the "light F16's" and Vipers are to be found in the beams, rudder setup and daggerboards. The 2007 global challenge Viper weighted (including repairs) 134 kg and its daggerboards + rudders (combined 15 kg) were already 8 kg heavier then my own AHPC Taipan 4.9 set. Note that my set is 7 kg combined including the storage bag and that the www.catamaranparts.nl set is less then 6 kg. A wopping 9 kg difference for identical retail prices and the lighter sets all survived the Global challenge and the Alter Cup 2007. In constrast Viper boards broke in Singapore. Like I said in the beginning. The weight of the Viper is a commercially inspired CHOICE, not a necessacity. I agree with Greg Goodall however, that overall weight is not a such big factor in overall performance. Every customer should buy a boat he is happy with and just learn to sail it to the max. The companies VectorWorks/FalconMarine, StealthMarine, AHPC (Taipan + spi) and Australian Formula catamarans all build F16 (compliant) boats that weight between 107-115 kg in the standard glass/vinylester/alu attire. Upgrades may lower their weights. Amateur homebuilds are in the range 105-120 kg It is only AHPC who builds a 130 kg F16 as the standard 2-up Viper F16 I think this proofs beyond a doubt that it is the Viper that is the odd one in a pretty straightforward situation. Wouter
Last edited by Wouter; 11/14/09 02:05 PM.
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
| | | Re: Another F16 class rules Blast. .. Very Well Done !
[Re: macca]
#196297 11/14/09 03:48 PM 11/14/09 03:48 PM |
Joined: May 2003 Posts: 4,451 West coast of Norway Rolf_Nilsen 
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Posts: 4,451 West coast of Norway | What makes you believe the adress dont work. Other F16s not as quick as vipers  Oh you really are making a fool out of yourself. You intend to take this sillyness how far?? Stop making yourself look like a clown. Returning to this Don Quixote quest with the min weight and trying to be smart playing word games. It is not going to happen. If you want to try raising min weight, here is the info you need, but you are waisting your time: Become a member here: http://www.formula16.net/content/view/60/63/lang,en/ You find the class rules here: http://www.formula16.net/content/view/19/34/lang,en/ Until you do it the proper way, leave the subject alone or get out of here. | | |
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