New build

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AgentMulder
AgentMulder
29 posts
29 posts
14 Nov 2014 6:49pm
Hey, I am Robert from Holland and this is my new build mini Landyacht. Still view things to, but it looks okay to my

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aus230
aus230
WA
1660 posts
WA, 1660 posts
15 Nov 2014 8:25pm
welcome to our site. You should have fun with that, look out it can become addictive.
Tartateam
Tartateam
6 posts
6 posts
16 Nov 2014 3:47pm
aus230 said..
welcome to our site. You should have fun with that, look out it can become addictive.


Hi, Welcome good work!
AgentMulder
AgentMulder
29 posts
29 posts
17 Nov 2014 3:58am
Thanx !

There is still some work to do, I'm not happy how the mast is mounted, maybe with steel lines secure.
Some finishing and think of something for the soil.
Tomorrow I am free and I am going to continue to work on my mini Land Yacht. More pictures will follow!
Test pilot 1
Test pilot 1
WA
1430 posts
WA, 1430 posts
17 Nov 2014 8:19am
AgentMulder said..
Thanx !

There is still some work to do, I'm not happy how the mast is mounted, maybe with steel lines secure.
Some finishing and think of something for the soil.
Tomorrow I am free and I am going to continue to work on my mini Land Yacht. More pictures will follow!



Take it for a spin. Literally let it spin out as that will test everything under most stresses involved with landsailing. Wheels,welds bolts. Also dont forget to use a seat belt and helmet
AgentMulder
AgentMulder
29 posts
29 posts
18 Nov 2014 6:39am
Today many details work, the rear axle is now 1.90 M and the wheelbase 2.00 M. and side-arms replaced by steel wires.
Now I need good wind to test it !

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Hiko
Hiko
1229 posts
1229 posts
18 Nov 2014 1:15pm
Hi It looks to me from what I can see in the pics that you have a lot of lead in the steering
If so that is not good the yacht will want to steer up wind and you will be fighting it
The line of the steering pivot should hit the ground directly under the front axle or close to it in a land yacht
because of the side force
cheers Hiko
Test pilot 1
Test pilot 1
WA
1430 posts
WA, 1430 posts
18 Nov 2014 5:28pm
AgentMulder said..
Today many details work, the rear axle is now 1.90 M and the wheelbase 2.00 M. and side-arms replaced by steel wires.
Now I need good wind to test it !



I think you would have been better off with the side arms especially when it tips over

AgentMulder
AgentMulder
29 posts
29 posts
18 Nov 2014 5:49pm
Thanks for your reply 's, the front wheel is not yet on the right position and I can still move it. .
The steel wires come from a Cat Prindle 16, so to me there are strong enough, the mast is there just more stable than with the side-arms, but during the first test I can look what's best.

Excuse, my English is not so good, but doing my best ....
Test pilot 1
Test pilot 1
WA
1430 posts
WA, 1430 posts
18 Nov 2014 7:33pm
If you tip over while moving forward at speed the drag on the mast would be counter-acted by the side arms whereas the wires will not support the mast if this happens. But as you say the first test will tell
AgentMulder
AgentMulder
29 posts
29 posts
18 Nov 2014 9:30pm

I don't understand the problem, at the Class 3 the mast also attached with 3 lines ...
sn
sn
WA
2775 posts
sn sn
WA, 2775 posts
18 Nov 2014 10:29pm
The tubular arms support the mast in two directions [compression and tension], while cables only support in one direction [while under tension]

Tubular side arms will give you a little protection if you tip over - cables will not


stephen
Gizmo
Gizmo
SA
2865 posts
SA, 2865 posts
19 Nov 2014 7:23pm
AgentMulder said..

I don't understand the problem, at the Class 3 the mast also attached with 3 lines ...


Wires holding up the mast on a small yacht may be a possible safety problem.... Think cheese cutter!!!
Class 3 yachts are very large and the stay wires hold up the mast are a long way from the pilot.

Just a question why did you set out to design landyacht rather than using existing plans (some of them FREE) The plans on Seabreeze for the LLMini is a blend of probably more than 100 yachts of trial and errors?
Hiko
Hiko
1229 posts
1229 posts
20 Nov 2014 7:08am
I think the answer to that Giz is DIY innovation something that a lot of us get fun out of Yourself included I think
Gizmo
Gizmo
SA
2865 posts
SA, 2865 posts
20 Nov 2014 11:11am
While innovation is a good thing, it's better to start from a known point rather than reinventing the wheel (so to speak).
Test pilot 1
Test pilot 1
WA
1430 posts
WA, 1430 posts
20 Nov 2014 2:08pm
Better off building the first one to your specs to get it out of your system. Then you can compare where you went wrong(if anything) with the LLM and improve from there, it will be a great learning curve
AgentMulder
AgentMulder
29 posts
29 posts
20 Nov 2014 6:43pm
3 Years ago I started building my Land Yacht. I did't knew your site yet, but I spend hours on internet, but he originated in the workshop and used the materials that I had around.
My Land Yacht had to be fitt in my car and not too heavy. He is therefore also almost completely made from aluminum, only the rear axle and the front forks are made of steel.
The windsurfing sails work pretty well, but I want to finish the kart first and then restyle the sails.
On my vacation in La Franqui in France had a lot of fun but there are a number of things had to change. The rear axle was too wide and he wasn't stiff enough and too heavy.
The project has then suspended for a while, but now we go again to La Franqui and a reason to rebuild my Land Yacht.
Still here and few pictures of the first version.
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AgentMulder
AgentMulder
29 posts
29 posts
24 Jul 2015 2:57pm
Okay MK III
The aluminium version was not strong enough, so back to work.
This time I have used chrome-moly tubing, a very strong and light tube.
In August I'm going on holiday to La Franqui, France, so he should be ready, so testing next week !

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AgentMulder
AgentMulder
29 posts
29 posts
31 Jul 2015 5:12am
Hmmm, I had a stupid mistake, the seat was too far forward. Today back to the workshop and equal another race seat in the right place. Steeringbar also moved, now it looks more like it. Now it's time for the finishing touch and the paintjob.

Measurements are:

wheel base 2.50m.
beam rear axle 1.90m.
weight: ca. 40kilo compl.


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Hiko
Hiko
1229 posts
1229 posts
31 Jul 2015 6:39am
We dont call them stupid mistakes in our house merely learning opportunities
It looks from the photo to me that you may have a fair bit of lead on your steering
( The tyre contact patch ahead of the line where the steering pivot meets the ground]
If so the steering will be twitchy and unstable but it may be just appearance in the photo
I see you have some options for adjustment on the axle mounting holes
Chook2
Chook2
WA
1249 posts
WA, 1249 posts
31 Jul 2015 2:21pm
AgentMulder said..







A really nice looking yacht there.

Looking at the shadow on the paving bricks the front end is lower anyway. So I would cut the two forward tubes forming the wheel yoke and sever the smaller diagonal top bracing till you have it set correctly (just slicing in from the top of each larger tube so it all remains intact at the very bottom, with the only a 7/8 depth of tube cut, through the original weld point) and lift the chassis, bending the tubes down as a pair till the correct trail position is reached.

See "landyacht's" drawing below for trail information.

www.seabreeze.com.au/forums/Land-Yacht-Sailing/Construction/Build-a-Landyacht-Lake-Lefroy-Mini-Yacht/
AgentMulder
AgentMulder
29 posts
29 posts
3 Aug 2015 6:20am
Again today and step further, new boom and downhaul and the front wheel on the right place.
It's starting to look like a real land Yacht and I am very happy with the result . Now one more layer of paint and than the first test.

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AgentMulder
AgentMulder
29 posts
29 posts
14 Aug 2015 7:56am

Today, the workshop in order to adjust the fork.
Then it's time for the first low wind test session. Unfortunately, too little time to hit the beach, so an empty parking place went well.
It went very very well and I'm happy with my Land Yacht !
Now get some little things done and then on my way to France for my holiydays .



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Hiko
Hiko
1229 posts
1229 posts
14 Aug 2015 12:48pm
The steering looks much better now
Have fun on your holidays !
Chook2
Chook2
WA
1249 posts
WA, 1249 posts
14 Aug 2015 1:42pm
That looks great.
Enjoy.
AgentMulder
AgentMulder
29 posts
29 posts
14 Aug 2015 5:00pm
Thanx, steering is now okay !
The fork is completely taken apart and welded together again. It was a difficult part of the construction and took a lot of time, It was only about half an inch ! But now he's finally ready!

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Test pilot 1
Test pilot 1
WA
1430 posts
WA, 1430 posts
14 Aug 2015 10:55pm
looks immensely better!
BenBoulder
BenBoulder
WA
261 posts
WA, 261 posts
15 Aug 2015 2:18pm
Looking good, clean construction, comfortable and light weight.
AgentMulder
AgentMulder
29 posts
29 posts
6 Sep 2015 6:00am
Summer Holydays in La Franqui.

I had a Great holiday and my Landyacht went great!
He was pretty neutral and not too nervous, speed was okay but I need more wind than others, but as the wind went stronger, it was okay.
I was very lucky because I bought a beautiful sail from Seagull who give the power that I need.
Now turned out to be the mast not stiff enough, so I still need to find the right mast.
There are still a few modifications needed, mast, boom, steeringbar, but I am very happy!

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