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Hi MIK,

is this of interest for your rigging?

OneSails Sailmakers - The Next Generation of Sails

Jörn

hi all,

seems to me that the mast with full diameter in the wind on the lee side of the sail (Brians / Hoyt's arrangement) may cause more aerodynamic disturbance than a mast protruding in the sail...

Hi MIK,

Wrong thread?
Anyway - the biggest load from rudder to transom so far in my goat resulted from vertical loads on the tiller. I noticed that during the first dry fitting of the rudder box...

Hi Al,

me thinks that MIK refers to full length battens.They flatten the sail if not compressed from a rounded luff and leech, which is unusual but possible in lugsails. But they interfere with...

Hi Mik, disposable canoing doesn't go with maxims like "leave nothing but your footprints behind" and probably collides with some environmental laws. And if I had to rely on my boat - lets imagine...

Hi all,

some more data from me.


Suspended at the ends and weighted in the middle, my yard (Thickness to MIK's specs, but eightsided, not rounded completly to compensate the slightly lower...

Hi all,

I just measured the bending of my spars, suspended at the ends (they are still some cm longer and can so easily placed on sawhorses with the given ends) and weighted in the middle for the...

Hi MIK,

Thanks for the instructing pictures, the idea is clear.

But - if you mind - please run your database through your stability program with a 15 kg outboard fitted and a 120 kg guy...

Hi Ralph,

if you don't like the looks of big round holes, you can look for the square PVC-tubes made for air ducts. Most suppliers for house building have them.
For myself I've done rectangular...

Hi Ralph;

the dunking of the gunwale and the deepfloating capsized GIS is your assurance against fast drift in higher winds. The higherfloating Raid 41 shows the problems with that, see the...

Hi Ralph,


thanks for the link, but the site is currently not aviable. I will try later again.

You are right, every splash that which will reach the transom opening will follow the slope...

Hi Ralph,

nice work you did, and thanks for the thanks.

With the tubes my idea is to start low in the boat, floating level or heeled, and end in the transom up and central, so good drain with...

Hi Ralph,

here some thaughts about flotation. Pro's and con's with additional flotation in the centre seat:
Pro: less bailing.
Contra: More windage and faster drifting capsized, daggerboard less...

What do you think: Startpoint is the Goat, not Raid 41, stretched in length to 9,4...

Hei Bjarne, Get a torquedo. Far lighter than the mentioned two-/fourstrokes, comes along in a watertight bag, has a long shaft, and with 1300 € cheaper than your first price mark. While fishing,...

Going over tops of sideposts? Jörn

Size of racks doesn't matter that much. Just fit two pieces lumber around six feet long across your roof, tie them down, then place the bow of the boat under one tip of the rear lumber, rear of boat...

Hi Mik, rowing measurements above are from our recreational boats, so here are rowing measurments for more performance rowers (german, sorry). ...

Hi all,

for water ballast: just get some Ortlieb or else watersaks. 20 kg ballast each, fresh water for cruising, and changeable from right to back to left. And easy to empty. And they do not...

having not yet sailed / rowed a GIS, but with some experience in campcruising with dinghys and rowing shells, iI agree with Joost mostly.
So having some kids keen on rowing, i fitted a removable...

Hei Jürgen,

Same like SOLing - PM, phone number and appointment. But 10th of July I'l be in Gaastmeer (Frisland) - hopefully sailing some homegrown GIS...

Greetings - Jörn

Well done. I'm not that far, still busy with (after doing a dry run) epoxying bulkheads in the flat stage. I hope for 3D next weekend. By the way- do you made your decision for a towing/tying down...

Hi,

most planes with high gliding angle today have fin shaped wingtips for efficiency, not sqares, and propellers with high efficiency as well (e.g. Torqueedo). Induced drag is an issue of some...

No idea, but probably not. The load is distributed via stem to a lot of ply. But an attachment point for pulling lines low down is better for the boat if pulling the GIS with a fast (motor)boat....

with my GIS, I'v done a hole 12 mm diameter across the inner stem parallel with the back side of the stem around 8 cm over the bottom. I will glue a short piece of tube (stainless) inside, so if...

Epoxy isn't epoxy in terms of causing allergy. To much different ingredients in different brands. Mixing relation indicates for different ingredients. To be sure, you should test several brands /...

Hi Bob,

it's the other way round: the expert has ways to get performance out of some scrap tools, but the beginner needs far more the performance of a quality tool. With that you get the feeling...

Howdy,

This boat looks really nice!

about sleeping in boats - laying out of the middle in a not ballasted boat like in the sketch causes some inconvenience, if the boat is in the water. So...

Howdy Mik,
How do you manage three blokes hiking with the Goat?
No hiking straps specified - do you hook your ankles just under the middle seat?
Would like to give it a try (with hiking straps)...

Hi Clint

oval spars tend to bend more easy in the direction of the lesser diameter. With straight spars this sometimes causes unwanted turning of the spar, so arched spars like hollandse gaff's...

Thanks,

that's helpful. Thaught over increasing diameter, by guess I got 43 mm. 41.8 (=> 42 roughly) sounds better (thinner is easy).
Mast I do rectangularand with 83 mm, better would be 85.7 mm...

Hi,

I played a bit with sailcut. Mik, what are the parameters for fullness and twist ( and how is the matching stiffness of yard and boom)?

Greetings - Jörn

Hi,

Calculated measurements give 43 mm yard and 88 mm mast, so I increased diameter of the yard by 7%.
But real stiffness depends much on the wood used, for example is the tensile strength of...

Yes, done some sailing, and racing too, Pirat and Hobie 16. Sometimes quite sucessful.


But my concern about topweight is from some years of teaching children to sail with gaff boats. Hoisting a...

Hi all,


gladly I can tell the start of another build of a GIS, this time in Germany.

Have started with cutting ply, I am deeply impressed with the exactness of the dimensions given in the...