[tdan]

 IMG_0040.JPG (94.98K)
Number of downloads: 363Hi SA community,
i think it is now time to publish a few details of our T830 canting project. We finished the boat approx. 2 month ago and tested it a few times. Due to problems with the canting keel purchase (a few Ronstan blocks exploded) we have taken the boat out of water. So no more sailing this year...(it is getting f..... cold here in germany) :(
The first test were very promising. The boat was extremly fast even without the optimal trim. Here are some pictures: Please take into account that we only had 3 month (after work and weekends) to build the boat (without the foils) - so don't expect a perfect finish and a clean shed.
The specs:
carbon airex, draft 2,6m; approx weight 750kg; bulb 330kg;
 DSC00871.JPG (121.72K)
Number of downloads: 166  2007_0929tb0001.JPG (88.69K)
Number of downloads: 126[attachment
=86955:DSC01082_Kopie.JPG]  DSC01949.JPG (192.95K)
Number of downloads: 213  Kopie_von_DSC02105.JPG (119.38K)
Number of downloads: 218von_DSC02105.JPG]  DSC02107.JPG (137.71K)
Number of downloads: 217  jasp1.jpg (41.91K)
Number of downloads: 222
 IMG_0040.JPG (94.98K)
Number of downloads: 363

Attached File(s)

•  DSC01082_Kopie.JPG (108.28K)
  Number of downloads: 142

[barnone]

Boat looks awesome. Really like the cabin top. Too bad there's no wind in the sailing photo.

Also good to see some cases of Pilsener (beer) in the shop. Can't make proper design decisions without it.

[schoonerman]

That is ONE awesome sporty you have there!

Did you sort out the canter issues?

[capsizeking]

Hey Dan,

finally some pictures :P
saw you on the water during the Herbstwoche in Flensburg...and there´s a thread on the german SA hier klicken. Maybe you could shed some light (and pictures) there as well! Awesome boat you have there, mate.

cap

[drew malcolm]

what a weapon!

[frayedsheet]

i want that one!

[ratchamatic]

frayedsheet, on Oct 24 2008, 10:26 AM, said:

i want that one!

hey frayedsheet,

by the way ... the moulds are still available and ready for collection in hamburg (germany)! Don't miss it! ;)

[frayedsheet]

ratchamatic, on Oct 24 2008, 08:17 PM, said:

frayedsheet, on Oct 24 2008, 10:26 AM, said:

i want that one!

hey frayedsheet,

by the way ... the moulds are still available and ready for collection in hamburg (germany)! Don't miss it! ;)

this may be true, but ill have to make do with the 8m non canting version

[fullsail]

Really nice, I want one too.

Christian

[Christian]

ratchamatic, on Oct 24 2008, 04:17 AM, said:

frayedsheet, on Oct 24 2008, 10:26 AM, said:

i want that one!

hey frayedsheet,

by the way ... the moulds are still available and ready for collection in hamburg (germany)! Don't miss it! ;)

Hmmmmmmmmmmmmmm - can you give a little more detail: what moulds are actually in existence hull? deck? Keel? rudder? other?

[ratchamatic]

Christian, on Oct 24 2008, 04:58 PM, said:

Hmmmmmmmmmmmmmm - can you give a little more detail: what moulds are actually in existence hull? deck? Keel? rudder? other?

hull and deck: frames for female battened moulds
keel: female mould
rudder and canard: no moulds ... blades are made of carbon layers over a male CNC-shaped foam-core

[ultraracer613um]

ratchamatic, on Oct 24 2008, 04:17 AM, said:

frayedsheet, on Oct 24 2008, 10:26 AM, said:

i want that one!

hey frayedsheet,

by the way ... the moulds are still available and ready for collection in hamburg (germany)! Don't miss it! ;)

The 830 tooling?? Say it ain't so.. i'd damn sure be interested! I miss my 830 something fierce.

[Speedwatch]

Mmmh, with a strong Dollar as today buy / ordering a T830 in Germany would make sense for someone who quit the market 3 months ago ...

[t-8]

there is also a T8 for sale in Aus for those in the northern hemisphere. The AUD has tanked in the last couple of months, off nearly 40% from its highs! Its like a stock take sale!

[Christian]

Speedwatch, on Oct 24 2008, 03:55 PM, said:

Mmmh, with a strong Dollar as today buy / ordering a T830 in Germany would make sense for someone who quit the market 3 months ago ...

Wouldn't exactly call the dollar strong - just not as shitty as is has been recently

[revo]

tdan, on Oct 24 2008, 01:39 AM, said:

IMG_0040.JPGHi SA community,
i think it is now time to publish a few details of our T830 canting project. We finished the boat approx. 2 month ago and tested it a few times. Due to problems with the canting keel purchase (a few Ronstan blocks exploded) we have taken the boat out of water. So no more sailing this year...(it is getting f..... cold here in germany) :(
The first test were very promising. The boat was extremly fast even without the optimal trim. Here are some pictures: Please take into account that we only had 3 month (after work and weekends) to build the boat (without the foils) - so don't expect a perfect finish and a clean shed.
The specs:
carbon airex, draft 2,6m; approx weight 750kg; bulb 330kg;
DSC00871.JPG 2007_0929tb0001.JPG[attachment
=86955:DSC01082_Kopie.JPG] DSC01949.JPG  Kopie_von_DSC02105.JPG (119.38K)
Number of downloads: 218_
von_DSC02105.JPG] DSC02107.JPG jasp1.jpg
IMG_0040.JPG

boat looks anreal, is your tube shape for keel in stainless ? have you got a casset, what sort of purchase for canting ? any more pics? great job , well done , hope you win many races.

[tdan]

to answer the questions concerning the canting mechanism:
we use a ss tube as bearing for the keel. a carbon casette is glued in the tube. we first used a 1:8 purchase - but the blocks exploded. No we try a 1:16 purchase using ronstan orbits. We hope they'll do the job and keep the friction at a reasonable level. i have attached a few pics of the canting keel tube+casette. FYI the plastic parts you can see on the pics attached to the first post is the pivoting canard bearing.
 2008_0407Boot20005.jpg (48.33K)
Number of downloads: 73  2008_0407Boot20007.jpg (48.3K)
Number of downloads: 76g]  2008_06242008Juni0017.jpg (45.85K)
Number of downloads: 100

[revo]

tdan, on Oct 26 2008, 07:28 AM, said:

to answer the questions concerning the canting mechanism:
we use a ss tube as bearing for the keel. a carbon casette is glued in the tube. we first used a 1:8 purchase - but the blocks exploded. No we try a 1:16 purchase using ronstan orbits. We hope they'll do the job and keep the friction at a reasonable level. i have attached a few pics of the canting keel tube+casette. FYI the plastic parts you can see on the pics attached to the first post is the pivoting canard bearing.
2008_0407Boot20005.jpg  2008_0407Boot20007.jpg (48.3K)
Number of downloads: 76g] 2008_062...Juni0017.jpg

thanks for the pics so the teflon bearing are at the top and bottom of the casset so the keel is just clear of the stainless tube ? on the sports 8 xx we got 4 to 1 purchase going to a 32 winch wich make pretty qwick to tack but you got extra 100 kg in keel and lower! what sort of winch ? or may be you got none ? we also cant 50 deg its very hard to get !

[tdan]

No - the keel is directly bolted to the carbon casette. We use a Harken 16 Winch.
The POM bearing has nothing to do with the keel. It is for the canard.
the tacks are not very difficult as one man can lower the keel down and pull the first 20-30° to the other side without using the winch.
the keel fully canted is like 4 massive lads on the rail - the gain in RM is high.

[tdan]

Here a few more details of the build:
as mentioned we used a female battend mould, with airex as sandwich core and carbon.
deck and hull moulds:
 DSC05404_Kopie.jpg (64.13K)
Number of downloads: 38  2007_0903r0020_Kopie.jpg (71.57K)
Number of downloads: 39
internals fitted:
 DSC00874_Kopie.JPG (52.9K)
Number of downloads: 38
deck and hull joined:
 DSC00875_Kopie.JPG (61.79K)
Number of downloads: 40
deck laminated:
 2007_0929tb0004_Kopie.jpg (61.63K)
Number of downloads: 35
boat turned:
 DSC00905_Kopie.JPG (60.21K)
Number of downloads: 42
fairing:
 019_Kopie.JPG (62.51K)
Number of downloads: 30
boat ready for paiting:
 DSC01901_Kopie.JPG (67.17K)
Number of downloads: 60
primer sprayed:
 DSC01953_Kopie.JPG (87.87K)
Number of downloads: 37
topcoat sprayed:
 DSC01968_Kopie.JPG (58.66K)
Number of downloads: 45
then it was time to make the foils:
we used vacuum infusion to build the keel, the rudder and the canard. The canard and the rudder were infused over Cnc-milled foam cores:  IMG_0292_Kopie.jpg (47.38K)
Number of downloads: 33
 2008_03102008_20010_Kopie.jpg (63.97K)
Number of downloads: 26
picture of the infused rudder halfes:
 2008_03102008_20012.jpg (47.19K)
Number of downloads: 32
The keel was also made by infusing each halfes seperately and then glueing them. Here is a picure of the infusion in the female mould:
 infusion_Kopie.JPG (76.99K)
Number of downloads: 35
The keel is 40mm thick and about 300mm wide. The laminate is about 12mm thick. Hope it is thick enough :rolleyes: .
I almost forgot to say thanks to Jan Myslik from Prague for his help. Without his experience of the T830 our project would have ended in a disaster.

Attached File(s)

•  2008_03102008_20012.jpg (47.19K)
  Number of downloads: 30

[206]

are these euro t830s (canting or non) faster than stealth 8 / sports 8 ? maybe on light air lakes? maybe not in heavier breeze?

[tdan]

yes that would be interesting to know. How does the T8 compare to Vivace and co.?

[206]

aussie t8 rates a good bit slower than stealth 8 or sports 8 - but the euro t830s are quite a bit different than the t8

[dachopper]

Don't forget the "Turbo" t8 aswell

[tdan]

Turbo T8? I thought it is stuck in the drawing/construction phase. Are there any photos of it?