Thread: Solo "Expedition" Sailboat

Michael,

So what ever happened to the extended version of the GIS that you were working on (Goat Island Skiff thread, post number 12)?

The drawing attached to that message looks very promissing, especially for people what want to get involved in raids and the like!

Regards, Joost

Hi Joost,

I am still quietly talking about that in the background. I am not planning to do plans for general release at this point as I think it will be quite a demanding (specialist) boat, unlike the one I am talking about here.

Best wishes
Michael

Originally Posted by robhosailor

Yes! Beth is probably simplest to build fine boat and ...prettiest box in the Universe! (and this photo is beautiful indeed)
Tell to the truth: She is probably suitable as "spartan" weekend solo cruiser for well experienced sailor. She is my favourite small boat and I intend to use her for that purpose
(on the not defined future...)

All future is not defined Robhosailor! I know you know exactly what I mean!!!!

MIK

Originally Posted by Boatmik

Hi Joost,

I am still quietly talking about that in the background. I am not planning to do plans for general release at this point as I think it will be quite a demanding (specialist) boat, unlike the one I am talking about here.

Best wishes
Michael

Hi Michael,
By demanding are you suggesting like a Light Weight Sharpie with a balanced lug?
Looking at the pic I couldn't help think a GIS with an extra couple of feet and elements of Beth would be a pretty exciting boat.
I hope you continue the development I have the GIS on the build list but if you can retain the beaut lines in a Raid version this little black duck would be interested.

Mike

Originally Posted by Boatmik

All future is not defined Robhosailor! I know you know exactly what I mean!!!!

Exactly Michael!

BTW: What do you think about use Beth as a spartan solo weekend cruiser?
For example: Cocpit is probably long enaugh for sleepping aboard. There are a bit storage room in centrecase area - for modern sleepping bag, carimat and micro camping stove and for cocpit tent...

MIK could you possibly expand a bit on what this Solo expedition boat is looking like in your current thoughts. It sounds very interesting. Is it a box boat with canoe beam or GIS type beam? When you are ready of course..........
Brian

Just a very rough idea ...

I hate the number of spars here - I don't want to make 5 - maybe I can compromise with shape a bit and have most of them almost square. I am not sure what that red box on the front of the cockpit is either - It might be to make waves airborne so they land in the sailor's lap.

Getting rid of the masts for a light weather RAID rowing ... this is not really a rowing racer - it is an expedition sailor capable of good speed under sail and a reasonable average under oar. Can't bring myself to put in a swinging centreboard and ruin that nice cockpit. Would probably sail quite well even with half the board up.

Has more rocker than BETH to reduce wetted surface in the light stuff - need to do this as it is over a foot wider which adds wetted surface. Can be reduced by heeling (also necessary with BETH in the light stuff)

Self draining cockpit which also gives some ability for water ballast - though I really don't like adding weight to boats and weight down low in little boats won't add much performance at all. Might make the boat safer though.

Might be quite pretty once I understand it a bit better.

Beam is around 4ft, length under 16, hull weight (wild guess 100lbs - 6mm bottom the rest in 4mm).

No supporting calcs for any of it. No checks on trim or checks for weird S shaped lines in 3D yet. No checks for handling problems when overpowered.

Oars would have to be on posts so they wouldn't hit the sidedecks. I won't get rid of the side decks - nothing makes a boat drier and more comfortable for being dry (except very high sides to the boat like the GIS).

MIK

WOW!!!
I like it!
She looks very interesting indeed...

Thanks MIK. Very nice. Very desirable. Very quick.

Inexperienced with spar making - could the spars be put through a thicknesser to square them, again with wedges to taper them, then a router to radius the edges. 100 times better than trying to make round spars if it would work.

Brian

Originally Posted by keyhavenpotter

Inexperienced with spar making - could the spars be put through a thicknesser to square them, again with wedges to taper them, then a router to radius the edges. 100 times better than trying to make round spars if it would work.

In Jim Michalak's book "Boatbuilding for Beginners and Beyond" he recommend to make square (through a thicknesser) spars and oars first and make them octagonal (eight-side) with "Rotate gadget" and to make them sixteen-side - similar (the same) method is recommended by Boatmik but he recomend to round out them at finish.
Jim Michalak wrote (about oars making): "Now she's eight-sided. To round it you're supposed to sixteen-side it and then round it out. To tell to the truth, I leave mine eight-sided, including the handle and the area that fits in the rowlock."

...and my friend Radoslaw Werszko recommend to use aluminium tubes and spar profiles for less of time consumption:

(there is his recently started project Skiff 4.2 m which will be with sprit sail /different from shown one/- spars from aluminium tubes - not elegant? Probably yes, but less of time consumming)

http://www.dinghy.pl/42m_skiff.htm

Seeing we are talking design and performance here ...

There is a new article up on Duckworks (by me) about the antipodean view of boat design and how it feeds back into what I do.

Have a look
Why Storer thinks that OZ and NZ Boat wooden boat design and construction can punch above its weight

MIK

Originally Posted by keyhavenpotter

Thanks MIK. Very nice. Very desirable. Very quick.

Inexperienced with spar making - could the spars be put through a thicknesser to square them, again with wedges to taper them, then a router to radius the edges. 100 times better than trying to make round spars if it would work.

Brian

Yes - something like this approach - though using a thicknesser for tapering - too big a chance of a major stuff up.

And also only rounding the fronts of the spars - the backs are actually aerodynamically a shade more efficient square with slightly rounded corners.

MIK

Mik,

What happened to the GIS-X? I thought she was designed specifically for this brief.