Steinlager 1 Trimaran

[ixplorer]

Looking for dimensions and any images of this boat please... have a few but it seems its a largely unphotographed boat... the plan is to build a large scale model of it ... as in 18' long.

Anyone with information, I would be welcome to hear it thanks.

g

[Richard Woods]

I suggest you contact its designer Dave Alan Williams

eg here

http://www.nauti-links.com/pages/14561aa28/

Richard Woods

[ixplorer]

Thanks for that, been looking for him everywhere... still snail mail will take time... anyone else have any data... many thanks

[ixplorer]

Yikes... 18m [60ft] in length, mast height of 30m [100ft], width of 15.8m [52ft].
So even if I build a model thats half scale

1/2 scale 9m [30ft] long, the mast will be 15m [50ft] tall
1/3 scale = 6m - [19ft], mast 10m - [33ft] tall.
1/4 scale = 4.5m - [15ft], mast 7.5mtr [25ft]

Was looking for it to be a model !... with a mast of 25ft its almost twice the height of a paper tiger. Bloody hell.

[Corley]

a lot of orma60 multihull models are built to a 2metre hull length and seem to do quite well at that size.

If it's to be a sailing model you would probably be best to scale down the mast length beyond a proportional full size figure as the boat would be way overpowered with a full size scale mast.

Doug Lord is the resident boat design model multihull man maybe pm him for details.

If it's a static model I'd go to 1/18th scale 1 metre hull lenth and 1.6 metre mast sounds good to me.

[ixplorer]

Wash your mouth out !.. No such thing as overpowered !

The plan was to have it at around 4.5m ... and with the measurements i now am aware of, its not a model any more... its a copy... a working, scaled down lightning fast... copy.

cheers
g

[Gary Baigent]

I've sailed on Steinlager 1 - and the steam gauge registered 30 knots once during a fresh reach - but although the wing mast had a very large 2 metre chord, I'm fairly sure it wasn't 100 feet tall, maybe off the water, but not off the deck.

[ixplorer]

Whats a 2 mtr chord ? The length of the mast "depth" at base ? All the measurements i have found online say 30mtrs.

Do you have any digital photos of the boat ???? Cos that would be awesome.

Cheers tho
g

[Gary Baigent]

Chord means the depth of the wing mast, the cross section measurement from leading to trailing edge. On second thoughts, Steinlager 1's mast may have been (only) 1.5 metres, still a big rig. Multihull expert Loic Peyron sailed the tri in France and was very critical of its large chord ... which he got into trouble with during a hard blow. Blake and Quilter did too, hove too behind an island during the Round Australai race.
Digital cameras didn't exist in those days, but I've got some film prints, could scan later.

[Richard Woods]

I have seen Steinlager racing in close quarters against other 60ft trimarans. (I have video and still photos, but none are digital, sorry.)

All had the same height masts, so yes 100ft sounds right. I also thought it had a too big chord mast

Richard Woods

[ixplorer]

Gary, I figured out that was the chord... can you explain how the chord makes the sail work more effectively ?

For my copy... I want to make it an extremely fast boat... but i would still like to be alive... can anyone offer software to calculate power to weight ratios for me so that I can figure out how to build the outriggers and the main hull... i have never done anything like this before and right now I am thinking... glass over ply... with a aluminium frame T joints for where the braces meet the hulls... without knowing the nautical term for thee braces apologies ... its going to be a fast learning curve !

That would be awesome if you were able to scan the pics for me... picasa album would be easy if you use that...

I found some pro photos in an advertising agency throwout years ago and kept them... but have no idea where they are now... when i locate them i will scan and upload them as they need to be seen by the world.

Richard... wow... the video and stills would be amazing if you can share.

many thanks

[Gary Baigent]

Ixplorer, I'm all for enthusiasm and would never knock it in anyone - but cobra, you're talking of a hot boat here ... a 9 x 8 metre tri with a 15 m rig is potent stuff - and is something that you need to actually work up too, just imo, both in building and sailing - because you say you've never done anything like this before.
All multihulls (unless they heavy cruising condominiums) are fast and if you build light yet strong, you'll be fast - and I'd suggest checking out some local multihulls and do plenty of book (Gougeon brothers among others) and web research, before you commit yourself to building your dream machine.

[Tad]

This drawing claims a mast height of 83.5', assume that's off the deck......

[ixplorer]

Originally Posted by Gary Baigent

Ixplorer, I'm all for enthusiasm and would never knock it in anyone - but cobra, you're talking of a hot boat here ... a 9 x 8 metre tri with a 15 m rig is potent stuff - and is something that you need to actually work up too, just imo, both in building and sailing - because you say you've never done anything like this before.
All multihulls (unless they heavy cruising condominiums) are fast and if you build light yet strong, you'll be fast - and I'd suggest checking out some local multihulls and do plenty of book (Gougeon brothers among others) and web research, before you commit yourself to building your dream machine.

Theres no way I would go near that scale... the cost would kill me, let alone the speed. 4.5m x 7.5m is far more likely.

Cobra

[ixplorer]

Originally Posted by Tad

This drawing claims a mast height of 83.5', assume that's off the deck......

Attachment 58022

Wow thanks for that ! Fantastic image... never seen a right angle projection of it... perfect.

g