Forums > Land Yacht Sailing Construction

Wingnut 4

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Created by US772 > 9 months ago, 30 Oct 2012
US772
332 posts
30 Oct 2012 8:30AM
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I've been slowly working on the class 2 wing for the upcoming Worlds


aus230
WA, 1660 posts
30 Oct 2012 12:04PM
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One day I will have to build one of these, please keep the info coming I am really enjoying it.

landyacht
WA, 5921 posts
30 Oct 2012 9:01PM
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please ,please,post pictures of every step,no matte rhow small, this is how we all get inspired to build new things , and stay young

Chook2
WA, 1246 posts
30 Oct 2012 10:40PM
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It isn't fair!!!!!!!!

We have to pay a fortune to get lots and lots of knot holes in the plywood we buy.

Fantastic project coming along there. I'm Pea Green with envy!!!

FreCo
24 posts
31 Oct 2012 6:45AM
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Damn...
It got me started as well... Spent hours on the job, looking for more "wing"-info...
My first normal surf-sail is not even mounted and I'm already thinking about replacing it with a wing.

We WANT measures, details, plans, maps, whateveeeeeer!!! [}:)]

US772
332 posts
1 Nov 2012 5:57AM
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I have free plans on the for mentioned website. They are pretty detailed. I also have a wing building, series on my YouTube channel Us772.

Chook2
WA, 1246 posts
3 Nov 2012 8:55PM
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Just a question US772, if I may.

Why is the wing made up of two aerofoils rather than a large single, with a flap/aileron, control surface on the back that is part of the original foil?

I love the way they look.
The "Berminator" at Lake Lefroy did it for me!!!

US772
332 posts
4 Nov 2012 6:37AM
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It has much more lift at lower speeds than a single airfoil. An external slotted flap best about 40 t0 50 % of the total area combined.

Chook2
WA, 1246 posts
4 Nov 2012 4:25PM
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Ahh, that makes sence, never thought about the low speed.
I'm usually doing 120 knots, under a Cessna wing.
Thanks for your reply and please keep us up to speed on your current build.

cisco
QLD, 12346 posts
4 Nov 2012 10:38PM
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Chook2 said...
Ahh, that makes sence sense, never thought about the low speed.
I'm usually doing 120 knots, under a Cessna wing.
Thanks for your reply and please keep us up to speed on your current build.


Come on chook. You are a teacher and apparently an aircraft pilot too.

Correct spelling is an essential part of self expression.

Others reading might get the mrong weaning.

Chook2
WA, 1246 posts
4 Nov 2012 8:59PM
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Yes, it is an important part of our education.
I am a very poor speller and usually spell check, so you have at least some idea, of what I'm on about.

I'm nowhere near being a teacher, cisco (and my pay certainly reflects that)
Just a plain old "Level 2, Agricultural Training Officer", with 432 hours of single engine command time in my log book.
Let's concentrate on the wing construction eh????
Luv
Chook[}:)] Oh and I used a capital for my name.

cisco
QLD, 12346 posts
5 Nov 2012 9:34AM
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Just having a dig mate. Your work is faultless.

Do you think "Berminator" is appreciably faster with the foil than with a sail??

It certainly looks the part.

Nikrum
TAS, 1972 posts
5 Nov 2012 11:12AM
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FAULTLESS?? He is to blame for all things BAD that happen on this Planet!![}:)][}:)]
Ron

aus230
WA, 1660 posts
5 Nov 2012 9:06AM
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When I last spoke to Trav about the berminator His impression is that it has a lot of potential and our worries that it might be tippy did not happen it just sat down and accelerated, early days yet and I am sure trav will get the best out of it. The vid was its first outing on a day with fluctuating winds. Trav said it went faster earlier in the day when the wind was a bit more consistent (lucky that I have spell check)
Cheers
Vic

aus230
WA, 1660 posts
5 Nov 2012 11:18AM
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Opps forgot to mention, I scaled down the Berminator wing from the plans on wing group's

Nikrum
TAS, 1972 posts
5 Nov 2012 3:13PM
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aus,
How do you think it would handle another 300 to 400mm??
Ron

sn
WA, 2775 posts
5 Nov 2012 1:49PM
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nice vid Trav!

but I got a bit distracted at the 32 second mark

stephen

aus230
WA, 1660 posts
5 Nov 2012 2:03PM
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The idea was to keep it in the 5.6 rope. It could be widened lengthened but that is not what I was trying for. I got distracted to

crazy trav
WA, 19 posts
19 Nov 2012 10:54PM
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hi its trav. master Brems gras hoper no need for any chang gust more practice and the right moment I WILL keep us all up to date when I take the yacht out again. If you no LEFRY this can take som time .BUT with patience LEFOY allys rewards us with landsiling heaven

US772
332 posts
20 Nov 2012 1:08AM
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To get more low wing use out of the Berminator you may consider adding a removable wing tip as

pictured.

US772
332 posts
20 Nov 2012 1:09AM
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I meant to say low wind use.

US772
332 posts
20 Nov 2012 5:11AM
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A little more progress.


aus230
WA, 1660 posts
20 Nov 2012 8:47AM
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What I like about wingnut and similar winged yachts is the fun of building them. Most of the stuff can be purchased from the local building store. The berminator only cost a couple of hundred dollars to build but hours of fun building it.(if I new what I know now I would have built a full scale version when I lived in Kambalda(right next to Lake Lefroy)
Love your work us772. Thanks for posting.
Cheers
aus230



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"Wingnut 4" started by US772