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Tuesday, October 27, 2009

Anchor Roller Test Lab: Final Results

Well, here it is. This is the geometry data from the mock up testing finished last weekend. I will let the picture speak for itself. Turns out things could be simplified from the initial drawings I put together. Only the aft roller need be adjusted. I guess this why one does experiments and mock ups.

The aft roller positions will stow all four types of these anchors and will self-launch when released.

Also, the Windline rollers used in the mock up will pull through a 3/8" chain, with a standard galvanized shackle attaching to the anchor shank, without difficulty.

Next is to use this data to continue the pulpit design.
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3 comments:

Tom said...

RJ, You have done a great job! It's great to see that I am not alone in spending time and effort to get it right.
I am not working to suit all types though, just one, Rocna, but at least three different sizes which means roller adjustment fore and aft. The I just have to build the stern set up.

Tom

rj said...

Thanks Tom,

You know, if you stare at something long enough the obsession sets in.

I think you know what I mean! lol!

-rj

Jerr Dunlap said...

Excellent empirical testing, RJ! You've saved yourself a couple frustrations repeated hundreds of times and I appreciate your generosity in sharing your knowledge gained.
Cheers to your new roller!
- Jerr

ps - Love that quote! Another favorite is from Santiago - A fanatic redoubles his efforts when he's forgotten his aims.