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20th April 2013, 04:40 AM
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Hi MIK, is this of interest for your rigging?...
Hi MIK,
is this of interest for your rigging?
OneSails Sailmakers - The Next Generation of Sails
Jörn -
27th June 2010, 01:44 AM
Thread: Flexible stayed mast - lug rig?
by joern- Replies
- 10
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hi all, seems to me that the mast with full...
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... -
18th June 2010, 06:35 AM
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Goat - reinforcement below the transom tiller cutout?
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... -
12th March 2010, 09:01 AM
Thread: Sail Design for the GIS
by joern- Replies
- 70
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Hi Al, me thinks that MIK refers to full...
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... -
17th December 2009, 08:10 AM
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Hi Mik, disposable canoing doesn't go 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...
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Hi all, some more data from me. Suspended...
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... -
28th November 2009, 07:39 AM
Thread: Start Building Another Dutch GIS
by joern- Replies
- 266
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Hi all, I just measured the bending of my...
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... -
5th November 2009, 05:34 AM
Thread: GIS Flotation and drainage?
by joern- Replies
- 29
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Hi MIK, Thanks for the instructing pictures,...
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... -
3rd November 2009, 06:55 AM
Thread: GIS Flotation and drainage?
by joern- Replies
- 29
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Hi Ralph, if you don't like the looks of big...
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... -
30th October 2009, 07:13 AM
Thread: GIS Flotation and drainage?
by joern- Replies
- 29
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- 4,373
Hi Ralph; the dunking of the gunwale and the...
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... -
25th October 2009, 09:18 PM
Thread: Start Building Another Dutch GIS
by joern- Replies
- 266
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Hi Ralph, thanks for the link, but the site...
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... -
25th October 2009, 10:01 AM
Thread: Start Building Another Dutch GIS
by joern- Replies
- 266
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- 49,170
Hi Ralph, nice work you did, and thanks for...
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... -
23rd October 2009, 10:42 PM
Thread: Start Building Another Dutch GIS
by joern- Replies
- 266
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- 49,170
Hi Ralph, here some thaughts about flotation....
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... -
10th October 2009, 05:44 AM
Thread: Trailer sailor
by joern- Replies
- 53
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What do you think: ...
What do you think: Startpoint is the Goat, not Raid 41, stretched in length to 9,4...
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30th September 2009, 05:11 AM
Thread: Sail and a outboard engine
by joern- Replies
- 44
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- 6,325
Hei Bjarne, Get a torquedo. Far lighter than the...
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,...
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25th September 2009, 07:16 AM
Thread: GIS in Santa Rosa, California
by joern- Replies
- 33
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Going over tops of sideposts? Jörn
Going over tops of sideposts? Jörn
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25th September 2009, 06:46 AM
Thread: GIS in Santa Rosa, California
by joern- Replies
- 33
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Size of racks doesn't matter that much. Just fit...
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...
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11th June 2009, 07:01 AM
Thread: GIS X or Raid Special
by joern- Replies
- 226
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Hi Mik, rowing measurements above are from our...
Hi Mik, rowing measurements above are from our recreational boats, so here are rowing measurments for more performance rowers (german, sorry). ...
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11th June 2009, 01:27 AM
Thread: GIS X or Raid Special
by joern- Replies
- 226
- Views
- 49,002
Hi all, for water ballast: just get some...
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... -
10th June 2009, 09:26 PM
Thread: GIS X or Raid Special
by joern- Replies
- 226
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- 49,002
having not yet sailed / rowed a GIS, but with...
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... -
2nd June 2009, 09:45 AM
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Hei Jürgen, Same like SOLing - PM, phone...
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 -
25th May 2009, 06:34 AM
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Well done. I'm not that far, still busy with...
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...
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10th May 2009, 07:28 AM
Thread: GIS Resurrected
by joern- Replies
- 14
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Hi, most planes with high gliding angle today...
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... -
29th April 2009, 08:59 AM
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No idea, but probably not. The load is...
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....
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24th April 2009, 09:29 AM
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with my GIS, I'v done a hole 12 mm diameter...
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...
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16th April 2009, 09:21 AM
Thread: BETH - building without epoxy use?
by joern- Replies
- 23
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Epoxy isn't epoxy in terms of causing allergy. To...
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 /...
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3rd April 2009, 06:50 AM
Thread: GIS - Sacramento
by joern- Replies
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Hi Bob, it's the other way round: the expert...
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... -
30th November 2008, 08:53 PM
Thread: Solo "Expedition" Sailboat
by joern- Replies
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Howdy, This boat looks really nice! about...
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... -
6th November 2008, 07:55 AM
Thread: Birdsmouth for GIS Main Mast
by joern- Replies
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Hiking
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)... -
8th October 2008, 05:23 AM
Thread: Goat Island Skiff
by joern- Replies
- 513
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- 290,969
Sticky: Hi Clint oval spars tend to bend more easy in...
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... -
8th October 2008, 05:11 AM
Thread: Goat Island Skiff
by joern- Replies
- 513
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- 290,969
Sticky: Thanks, that's helpful. Thaught over...
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... -
7th October 2008, 01:11 AM
Thread: Sail design and home sail making
by joern- Replies
- 43
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Hi, I played a bit with sailcut. Mik, what are...
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 -
6th October 2008, 11:13 PM
Thread: Goat Island Skiff
by joern- Replies
- 513
- Views
- 290,969
Sticky: spars
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... -
6th October 2008, 06:46 AM
Thread: Goat Island Skiff
by joern- Replies
- 513
- Views
- 290,969
Sticky: Yes, done some sailing, and racing too, Pirat and...
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... -
5th October 2008, 05:51 AM
Thread: Goat Island Skiff
by joern- Replies
- 513
- Views
- 290,969
Sticky: Hi all, gladly I can tell the start of...
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...