Vintage Windmill and Wind Generator Forum

There is a feature assures that this is a Challenge 27 wheel.

Note the 2 beads on the outer half of each blade that are at a right angle to the wheel rims. Due to the horizontal positioning of the wheel, in this instance they will appear to be "under" the wheel clips. I do not know of any other ...

I should consider myself fortunate. While still in high school (way, way back in the 1970's) I went through Atwood and saw that windmill.

It had been restored by a man with the first name of Anton. I am not sure of how to spell his last name correctly. It was pronounced something like "Dozoba ...

"Burdick was 600 miles West, doubt he would have put them up. I also don't think he began until the 20's maybe."

Quite correct. Burdick didn't begin until the 20's.

Burdick was quite the photographer and T. Lindsay Baker published a book titled Blades in the Sky Windmilling through the eyes of B ...

Your are a very fortunate windmiller, Windcatcher530 Dan. A NOS Challenge 27 still in the crate!

Honest confession is good for the soul. What size is your C-27?

Challenge 27

I believe the blades or "wheel slats" (as the Challenge company referred to them) were the same for all three. The 8 and 9 footers had 18 blades, the 10 footer had 24. All three had six wheel sections.

The 9 footer was essentially an 8 foot wheel stretched out to 9 nine feet wheel diameter; perhaps ...

Referring to my trusty 1941 Challenge catalog, which includes a parts list, the parts number for the "nosepiece"(as the Challenge company referred to it) was 4056 for the 8 and 9 foot size; and 4054 for the 10 foot size. So the nosepieces for the 8 and 10 foot size weren't the same.

Challenge did ...

Sorry for you loss.

May God be with you.

Have been following this thread, and will add my 2 cents worth ...

ZRC might be supposed to be applied to bare shiny metal, but when I put up my tv areal in 2020-21 (posts about that project can be found lurking around in the dark recesses of the forums), I applied it over the old galvo on the ...

Got my copy of the summer issue of the Windmillers Gazette today. There is a notice in the advertisements section about the trade fair, stating that is going to be held June 12-14. This contradicts the info in the registration packetabout the trade fair being held June 13-15. It also does not jibe ...

I have not seen the photos you referred to, but . . .

If the photos show the counterbalance weight, then its easy. Most Monitor Ls' have a spherical ellipsoid shaped counterbalance (referred to by some as a "football"). Some of the early Model Ls' had a cast iron weight that looked something like ...