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Concrete Canoe Photo

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I mentioned this in a different post so following up on sharing the photo as a curiosity as really know nothing about it.


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20240520_080444.jpg
 
So I'm guessing the cloth was wet out with concrete rather than epoxy?

Pretty impressive weight. Any info on flexibility/durability of the layup?

Alan
 
In the early 1970s I worked at a canoe shop in Chicago, and a couple engineering students came in looking for design info. (This event has been around that long!) As I remember, the maximum length specified then was 14 feet and I seem to also remember that it was specified as "ferrocement" construction, which meant iron/steel reinforcement was required. I suggested chickenwire (reasonably light), but didn't have any idea how to actually form one one-off. With fiberglass allowed, I guess the "ferro" part isn't followed any longer. I handed them off to the boss, and we never heard back from them that I heard about.

A little googling around led me to this, the rules for this year's competition:


I haven't read them yet, don't know if I will, 76 pages in the pdf document, and I ain't competing.
 
I went to Michigan Tech, back in the dark ages. It was a Civil Engineering department thing - MTU entered every year, and I think they still do. I never saw it (I was an ME).
 
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