even better. 2 bathtubs,4masts and sails,jib for cruising.after the race we went out with the kids and clocked 62kph. th race was the bath tub challenge at the pacrim.final winner was a converted Standart, narrowly beating the CARLINE MUFFLER special
Here is another thought on seats...
While away on a strenuous business trip I tried checking out seat angles for landyacht seats.
My personal preference was for position "2" although position "1" would be ok for minium air resistance.
Then taking the contruction ideas from "iand" on seabreeze and the construction of one of my previous yachts "Wildfire" the construction of a landyacht seat could be made from thick cardboard of approx 6mm, then coated all over with fiberglass and resin making a very solid seat.
Contacting a box manufacturing company the cost of 2 sheets of card board came to about $3 each ($6 for the seat)
Have a try at printing this picture and getting the scissors out and see what you come up with......
Folding along the lines you might end up with a model like this .......
Now is it just me or is that the best idea this week? An origami seat! Hope the fibreglassing materials dont break the bank.
You know,with the right folds and hinge lines someone may be able to make a very cool folding seat to suit the new mini craze 
Not just for the mini's either, A folding class 5 or bigger may be possible
Plywood with a layer of canvas covering the joint would form a nice hinge,I've heard of folding kayaks that used this.
Gizmo
Couple of photos of the seat I used to get the seating angle(it's my dog's bed) I ended up having someone support the back of the chair lifting it up and down while I was on it with a headrest out of my son's silly car, I mean celica to give a comfortable head position.
Re the cardboard- not knowing the type of cardboard your using(corrugated ?) I would consider impregating it with resin, as the foam sandwich construction relies on the thin fibreglass skins being unable to move in relation to each other and the further apart they are, the more rigid the structure(this is why I used 20mm high density foam. The piece I used cost $20)
link for some background http://www.nakedrv.com.au/Way%20of%20the%20Future.htm
About 4 years ago one of the Sydney to Gladstone yachts had to run for shore under reduced sail when the crew hear her grinding her teeth(the 2 skins were moving in relation to each other grinding the foam to a powder, when this happens the yacht will literally fold in half- I personally think this is what happened with Australia 4)
Please ignore my last post as I just realized how your going to do it. Congratulations on a top idea
Ian
The cardboard that was suggested to me was 5 layers.(about 6mm thick)
1.Top layer ...flat
2. corrigated
3. Flat
4. corrigated
5.Bottom layer flat
From past experience the resin will soak into the middle layer if covered both sides.
Tha actual shape and measurements need to be worked out to best suit the yacht and the pilot... as everyone wants something a bit different.
Did you use any software to make up the seat plan/template sheet shown above Gizmo?
No ... No special program.... just used about 6 beer coasters (but not that many beers) to see if the idea would work.
Once i got my head around what i wanted i used my normal CAD program.
I probably made about 3 models along the way.
My original thought was to use a fridge packing box leaving it unpainted and calling the yacht "Cool Running"
The way i have done it is that each side support has a triangle shape cross section.
I think the concept would work well but the feet and shoulder positions could be a bit narrower
If you have a look at my 2 previous yacht pics "Sandpiper" & "Wildfire" in the yacht register you will sort of get where the idea came from.
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If anyone is wanting a FREE Cad software program to do Technical drawings with go to.....
www.cadstd.com/
And download the FREE version
A simple program looks good and works well....
From experience the type you describe wont get the resin though,so dont rely on it. Can I suggest that you wax and pva mold release one side ,glass it ,pull out the cardboard anthen add some reinforcing strips of folded cardboard,and or corematt. the shape you are building is similar to HUMMINGBIRD.
we simply made the seat in 6mm ply peices stapled togetherand the whole seat stapled to a wooden board,glassed one side then the other.
You might also consider lifting and rounding the seat at the knee positionto give enhanced comfort. At the top of the head rest it helps to have an angle change to suit the head .
I cant believe people would actually go out to buy cardboard
I must live in a different dimension
Oh yes ,thats right ,I do
I must live in a different dimension
Gizmo
After drawing up on CADSTD how do you convert to a photo (jpeg) for upload ?
There have been a couple of plans I would have liked input on before proceeding with construction.
Hi Ian
the only way I have found to upload the drawing is to copy the drawing, paste it in "Paint", and then "save as" a photo in "My Pictures". From my pictures, upload the file (now a photo / jpg) to "Photobucket" or your favorite on-line photo storage colection. From (Photobucket) your storage section, find the new photo, click on Img...... and the photo is copied. Go to Seabreeeze/landyacht, pick the page you wish to display the photo. Goto "Reply to Topic" , place curser on the main area where you type a reply and click the mouse. Click paste, and most importantly, click PREVIEW. When you add the image initialy, it will simply be a web site or whatever, no picture. When you click on "preview", the photo is displayed in full. If you dont want that photo display, cancel the screen by "Close Window" and you can start all over again. It sounds like a lot of messing around but you can get a drawing onto the forum page in less than a minute.
HINT : 
If the displayed drawing/photo is too small on the forum page, cancel it out and return to your CAD drawing. "Select all" and go-to SCALE. Double the scale in both X & Y axis, copy and paste in paint, continue from there as above.
You may find the new photo/drawing is too big or still too small. Adjust the scale once again and go from there. This works for me, I hope it does for you. If someone else can direct you better, then go for it.
Kody
One more hint: You may have to play around with the width of the lines as drawn in your CAD program. If the lines are too wide, the end result is awful and not distinct. If the lines are too narrow thay may not reproduce clearly enough. Also, the letters and numbers may need to be increase in size to be legible
Kody
Select to expand quoteGizmo said...
My main aim in this seat design is to provide a VERY smooth underbelly to the seat to provide a clean aerodynamic shape (something very few people have done on small yachts).
Similar to "ground effect" on race cars
My comfort in the seat is well down the list when it comes to yacht performance.
Sometimes I just find it easier to buy new materials rather than recycle for the reasons of consistancy, availability, and not wasting my time, energy and fuel in searching for things.
I used to put shape first too but after all these years my body says "comfort or just watching others.". the problem I find with smooth bottoms (on landyachts) is that everything bashes into them, otherwise I love a smooth bottom
iand.... the method i normally use is...print it out on paper and then scan the image via the scanner on a fairly high resolution 400 dpi+.
I know this is cumbersome but it works quite well...
I have just tried another method.... go to the edit pulldown in CADSTD then go to copy clipboard then to raster (paint program) then paste this into your paint program.
The image as Kody mentioned a bit fuzzy but it works.... i still though like the paper method as it give me something to look at and doodle on till i next get to the computer.
Back to seat design... I just have this personal thing of disturbed air around things (maybe i've been looked at to many windtunnel test pics over the years) eg. air flow around sails and tubes, aircraft wings, roof racks on cars, Flapping clothes etc, etc.
I just keep thinking of how much drag is on your hand if you place it out a car window at 60-80 km/h its got to be many kgs....
So if you can reduce drag ANY way you can it has to increase speed on land yachts. (my favourite sports to watch are speed cycling, speed skating, down hill skiing and ludge in the winter olympics)
So thats why i have a thing about smooth bottoms....my wife thinks Im just having a mid life crisis... something to do with me being 50, waving (goodbye) hair, wrinkles and love handles that I justify with minimal padding required in the landyacht seat!!!!
I read somewhere on here that Kevlar would be great to make seats with but it's just so expensive. There is one source to try for very cheap kevlar that might just suit. Go to your favorite wrecker and talk him into giving you all or some of the used air bags. I believe these are made from kevlar and should be free of oil (and blood) and be ready to cut (it's very hard to cut) to form the seats or at least the high stress points. These air bags are good for nothing so should be very cheap or free.
Kody
should have the seat situation under control ,just about to pull the first seat off the mould I made ,don't think I'm going to need seatbelts on this sucker ,just about need a crow bar and a bottle of vasso to get into this seat......will take some photos and post them over the next few days......now all I got to do is repair a puntured tyre (ran over a lump of timber with nails hanging out whilst moving it in the yard) and finish the custom tandem landyacht carying trailor..summer just around the corner bring on the NE seabreezers..
