View Full Version : 3C Worlds - Sweden
A couple of shots of the new World Champion - Thomas Wrenkler.
Running very clean and very fast.
Jon Fuller
17-08-2004, 05:01 AM
Adam, what boat is that? it looks like a huge Argo, but I didn't think they made em that big.
Hi Jon
It is a Twister - apparently takes a bit of chop better than an Argo but not quite as quick in flat clam. However the way TW was going in calm water I think it would have to be like a mirror for the Argo's to get ahead.
I will sort out some more shots of the other boats.
Adam
Captain Chaos
17-08-2004, 06:18 AM
engine?
Re engine
Thomas Wrenkler was using an optimax - and was fairly singing it's praises. He certainly thought the extra mid-range power (500cc more capacity than the XR2's) made a lot of difference to overall performance. Want one for my boat now!
Otherwise there were still plenty of XR2's, some Optimax's and about three Yamaha V Max 200's. One of the boats (Argo) was quite quick with a Yamaha but the engine seemed to be waiving around on too soft mounts which was not doing anything for handling!
Adam
Captain Chaos
17-08-2004, 07:51 AM
how does yours perform with the 140 suzuki??
fairly guttsy motors eh?? and thirsty?
I'm saving my pennies for a 2000 or newer pro max...........i hope to take delivery by 2010!
Captain Chaos
17-08-2004, 07:57 AM
why shouldnt i be?
only joshin!
Captain Chaos
17-08-2004, 08:42 AM
I'm yet to mount mrs chaos................its been 5 years!
no CC the Suzuki is on the RIB and the XR2 is on the Cat! Its the XR2 I would like to change for an Optimax.
Another photo of a Finnish twister running an XR2 (came 5th overall) and a Norwegian Twister with a canopy (came 8th overall).
Cookee
17-08-2004, 11:21 AM
I gather a lot of the Scandinavians used "Aspen fuel" despite assurances that they wouldn't! Was Thomas using it as well or straight pump fuel?
I stayed at the same hotel as Thomas in Norway and he is a nice guy and I believe a worthy champion.
To be honest I'm not sure who was using what fuel - but the whole issue was about to escalate when I left. I was only there for one day of racing as we were making a holiday of it and travelling around. The Islands between Stockholm and Nynashamn are incredible!
I believe Roy put a protest in about the organisers allowing it to be used - which was upheld - but apparently some carried on using the fuel.
At the same time there are two types of Aspen and Thomas assures me that one is fully legal. Certainly agree that Thomas was a worthy winner and a really nice guy. He is also a very good driver and will always get the most from his equipment regardless of the weather.
Hi Matt
Should be getting some more pictures of my boat this week, so will sort some out.
It has been a long slog with this boat - but at last is starting to show some of it's potential. The boat is fairly radical for a cat and as such some of the features have not worked quite as I had hoped.
The whole concept is to achieve a good handling boat that can keep up high average speeds in all conditions. She is a pretty big boat for her class and we have probably over-built her. Certainly weight has been a problem - although we have now got it down closer to the original target.
Features that are of interest include the tunnel design, which apart from being wide is a modified section, hull steps and various details.
Looking forward to the Cowes event where I think we can make a step forward - are you going over for that Matt?
Adam
glen76
18-08-2004, 03:47 AM
adam, was that a 200hp optimax they were using?? are they legal for f2?? cause arent they 3032cc ie more than 3ltr?? also are they using sportsmaster gboxes and short shaft or standard opti??
thanks
glen
Hi Glen
It was the 200hp Optimax - but they are 2507cc so all OK as they are a 'green' engine.
They were running the engines as Short shaft. This would be where I would have to do a bit more work on my boat as we run a standard shaft. By all accounts the optimax on a short shaft gives better performance than the standard shaft, which does not have the benefit of the mid unit exhaust.
Adam
Jon Fuller
18-08-2004, 07:19 AM
Originally posted by Adam
Hi Glen
It was the 200hp Optimax -
Adam
Presumably as in 'XS200' opti
Another shot from Sweden - this time the Argo of Marcus Johnsson - who came third overall.
Yes the XS200 Opti.
Another Argo - also running very clean but not quite on the pace!
Jon Fuller
18-08-2004, 07:36 AM
Your direction change towards cats is quite noticable (ie, every pic a cat) have you completely lost interest in monos?
Hi Jon
Yes and no!
The cat is pretty much dominating my racing thoughts at the moment as it is something I have to crack and get right.
On the other hand I have designed a new two litre mono and could go ahead with building if I had a customer. It has actually been quite close to happening for the last couple of winters but then not got the go ahead (or deposit).
The mono is a fairly natural development from my last boat - but obviously improved in all directions. It would be nice if it did come off. In actual fact I have just heard that my old two litre boat has just been sold and will return to racing - still will be the boat to beat if it turns rough.
Also worked on the design of a ProVee boat last winter - but again did not get the full go ahead.
Adam
Adam, which day were you in Nynäshamn? I was there from Friday afternoon to Sunday afternoon.
Me and my buddies were invited by the organizer to show our boats.
We did a few turns in the bay at 1.30 pm Saturday afternoon.
Too bad I didnt know you were here. :( Should have been fun to meet you and your crew. :)
What a shame - I was only there from early Thursday morning to mid-morning Friday, so only saw the second race. Had to get back home to work on my raceboat for the following weeks race.
We hired a small aluminium boat, 5.2M / 90hp, in Stockholm and took a few days to travel down to Nynashamn, stopping of at couple of the Islands in the evenings. Took a more direct route back. One of the most enjoyable boating trips I have ever done! (even if it was only at 30 mph).
Must say the amount of great boats you see in Sweden far exceeds being in the UK. Also the boats are in better condition than most of ours.
Hi Matt
Eventually got back to your post,
Tunnel sides are generally given a few degrees of release angle for the GRP boats, otherwise many of the wooden / Ali cats of previous years often did have vertical sides. The inner strake is mainly to help get the boat lifted and onto the plane where there is often a problem with the large amount of extra wetted surface area with a catamaran when at low speed.
The percentage of aerodynamic lift is a big variable and certainly at times it can be very high – and needs to be to make up for the extra weight involved in building a catamaran. Certainly 60% is possible. Generally the problem with catamarans are the legs where the lift percentage is low – i.e. downwind on a windy day.
The actual sections used are either not aerofoil or at best modified aerofoil sections. This really being due to the long chord lengths and interruptions in the profile due to cockpits, engines etc. I have certainly gone for a large aspect ratio on the tunnel for my cat as I feel this is the best way to go with a relatively big boat. At the same time this also increase the build weight itself, but does give a bit more stability (much of the time).
The wing thickness is certainly influenced by the cockpit but also the length of the tunnel, which if you are trying to get lift from the deck the shape required can result in higher decks. On top of that structural design (also building methods) can then present problems and depth is also required to gain strength efficiently.
All very interesting – and could go for ages without covering everything.
Adam
infoasitappens
19-08-2004, 10:37 AM
Originally posted by Johnson
Your direction change towards cats is quite noticable (ie, every pic a cat) have you completely lost interest in monos?
Adam has posted pics of cats cause thats all there was there apart from the 2 B23s from Britain and the new Ocke.
infoasitappens
20-08-2004, 01:12 PM
CHECK OUT THE DO IT YOURSELF CRANE AT THE EVENT, WHAT COULD BE EASIER
infoasitappens
20-08-2004, 01:22 PM
P2 IN WORLDS THOMAS ROUSEN HYDROCAT
Jon Fuller
23-08-2004, 03:21 AM
Originally posted by infoasitappens
P2 IN WORLDS THOMAS ROUSEN HYDROCAT
Hydrocat, or Hydrolift?
Originally posted by Johnson
Your direction change towards cats is quite noticable (ie, every pic a cat) have you completely lost interest in monos?
Thinking about it - not really true as I'm interested in anything that is new or being developed. As 'info' posted there were not many mono's at the Worlds - but I did post photo's of new Mannerfelt.
It is why I still like the 2 litre class as there is still development. Also why the one design classes do not really do it for me. Sometimes they do give closer racing (not always though) - but very little moves forward once the class is established - and that is not what offshore racing is about to me.
Adam
Jon Fuller
23-08-2004, 03:24 AM
Couldn't agree more! natural development needed to stay in front (or cheating lol) is how we 'better the breed', and makes things way more interesting.
Yamaha 225
09-09-2004, 10:42 AM
They sold the molds to Sweden. the modifyed the deck in the strern to get more vakuum and the steps and other things to make it faster. Hydrocat is therefore the swedish one and they are much better. When I was 10 years old I took my Pioner 235 with 5 hp. Tohatsu over the Oslofjord to go and visit Hydro-Design who was building Hydrolift boats. It was exciting to see the raceboats beside the production sportsboats. Hydrolift went bankrut twice and have now new owner who have started to bulid less sportier boats. What a pitty!:violin:
Paul Whittier
24-04-2006, 10:04 PM
Do Hydrocat and Argo have websites?
Scand
19-05-2006, 06:50 AM
Try this web site:
http://www.hydrodesign.no/ Look on that last page of the brochure
Argo web site used to be:
http://user.sgic.fi/~argo/
Hope this helps
FrenchPhil
19-05-2006, 08:29 AM
The Argo website has been down for ages.... I'm sure they have all the work they can handle anyways.
Those Hydrocats are awesome, nice pdf.
Scand
20-05-2006, 08:10 AM
If I had some spare cash I would get me a CT-22…
http://www.finn.no/finn/boat/object?finnkode=7128839&sid=10aICT9VIZ795116&pos=1&tot=1
Nice V8 outboard….
scottyboy
20-05-2006, 10:47 AM
Originally posted by infoasitappens
Adam has posted pics of cats cause thats all there was there apart from the 2 B23s from Britain and the new Ocke.
So what does the new "Ocke" look like then? Anyone?:confused:
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