Testing blades

The blades of the turbine, and the hub they are attached to

Testing blades

Postby forum_admin on Tue Jun 16, 2009 10:21 am

This is a little bit off-topic, but still within context.

How's this test rig?

Image

[Reposted on behalf of Greystoke]
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Re: Testing blades

Postby windgat on Tue Jun 16, 2009 10:24 am

Its great! I get the feeling I've seen that pic before - from some guys in the middle of the USA?

I want to make one! Its a LOT cheaper than a wind tunnel. Of course, you have to wait for a windless day.

And also hope that nothing falls off, as it will come right through the windsreen. :cry: Was tempted to design one to go on the back to avoid that danger, but of course the air would be disturbed there.
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Re: Testing blades

Postby aero energy on Thu Jun 18, 2009 9:16 am

Done some testing too but this was here in S.A :)
Attachments
Picture 037.jpg
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Re: Testing blades

Postby Greystoke on Thu Jun 18, 2009 12:31 pm

So were're not so stupid, neh :?: :clap:
Regards
Cor
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Re: Testing blades

Postby windgat on Thu Jun 18, 2009 2:29 pm

Wow! Do you have a pic of that rig from the side?
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Re: Testing blades

Postby aero energy on Thu Jun 18, 2009 3:32 pm

How many pics do you want? :D
Attachments
Picture 008.jpg
Picture 032.jpg
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Re: Testing blades

Postby windgat on Thu Jun 18, 2009 4:17 pm

Thats good, thanks. I was interested to see how far forward it was mounted. Did you do any measurements to check if the airflow at the bottom of the blades was altered by the nose of the truck? I notice the wind speed meter is way off to one side.

(I want to do the same with a friends bakkie...)
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Re: Testing blades

Postby aero energy on Thu Jun 18, 2009 5:00 pm

Please be careful before mounting stuff on a bakkie.
And if you do, try to put it behind the yourself.
I have a quite a few more pictures. Some are
showing a fatal pole failure while testing.
Fiberglass all over the runway. I hope no
airplane tires where punctured because of that :)
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Re: Testing blades

Postby windgat on Thu Jun 18, 2009 5:08 pm

Ja, thanks... behind would need to be higher to avoid turbelence from bakkie windscreen....

Yes, show us some disaster pics!
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