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kiszka6911
Newbie

Joined: 08/05/2009
Location: United States
Posts: 3

Posted: 05:46pm 07 May 2009

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Hello all,

I am new to this group and am looking for some help in constructing a tower similar to a dunlite designed tower. Some of the design drawings are on the web and I have started reverse engineering them but what would be really helpful is some pictures.

I would also be interested in pictures of a wincharger tower as well.

I am looking for details of the girt and strut connection points and the diagonal brace layouts.

Thanks from the U.S.A.

SparWeb

Senior Member

Joined: 17/04/2008
Location: Canada
Posts: 196

Posted: 07:26pm 07 May 2009

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You will find this interesting

http://www.pearen.ca/dunlite/2kw/1114.pdf

30 second search with Google.

Steven T. Fahey

kiszka6911
Newbie

Joined: 08/05/2009
Location: United States
Posts: 3

Posted: 07:30pm 07 May 2009

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Thanks but I already had these, as I mentioned some of the design drawings are available, but what I was looking for was someone who actually has one to get some pictures.

Thanks

windlight
Guru

Joined: 03/03/2007
Location: Australia
Posts: 331

Posted: 04:49am 09 May 2009

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I have one and will take some close ups to post for you, I will try and do it tonight.

allan

"I like this place and willingly could waste my time in it" - (Act II, Scene IV).

windlight
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Joined: 03/03/2007
Location: Australia
Posts: 331

Posted: 11:10am 09 May 2009

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Are these what you are looking for?

"I like this place and willingly could waste my time in it" - (Act II, Scene IV).

kiszka6911
Newbie

Joined: 08/05/2009
Location: United States
Posts: 3

Posted: 02:45pm 09 May 2009

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These are really helpful. Thanks. Wind energy here in the states is really gaining momentum now that two things have happend. Most states now have net metering laws now so you get fair compensation for the extra electricity you generate. Secondly there are some federal tax insentives which will help get turbine maufacturers early sales which will then allow them to refine their products and lower costs.

My biggest problem is that all the towers that are popular here are massive steel mono poles which require yards of concrete, a crane, and they are really expensive $4K USD. The older lattice towers are soemthing rural people can assemble, and have stood the test of time.

What size turbine is on the top, output and blade size?

GWatPE

Senior Member

Joined: 01/09/2006
Location: Australia
Posts: 2127

Posted: 11:32pm 09 May 2009

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A lattice tower will still require yards of concrete in the footings, and will still require a substantial gin pole type arrangement on a tower this size. Here in OZ, a skystream 3.7 on a 9m monopole can be easily lowered with a hand cable winch with a rigid detatchable gin pole setup. For taller towers, the components only get bigger and heavier. There would probably be a higher wind loading on a lattice tower for the same height..

Gordon.

become more energy aware

windlight
Guru

Joined: 03/03/2007
Location: Australia
Posts: 331

Posted: 02:25am 10 May 2009

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The tower I show is quite typical of windmill (pumper) towers in OZ this one had a 10' Dunlite on top was around 50 years old when I pulled it down. They were heavily galvanized and stand forever provided you watch for galvitic reaction at the ground points, as many of the old turbines used the tower as the negative return.

It currently has a conversion on it with 10' blades tower is 40' tall.

The restored unit is shown http://www.anotherpower.com/gallery/allans-place

allan

"I like this place and willingly could waste my time in it" - (Act II, Scene IV).

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