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Member Since 19 Mar 2007
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In Topic: Aeronamics #2

05 April 2016 - 11:10 AM


Except that the Aeronamics doesn't have the wings of this width, so imagine Scott was sitting just outboard from the gunnel. He would have hit the foils. This crash is only one example, and they happen all the time.

you sure about that?


check out the lady standing in front of the raised (windward) foil.





That looks like a blade ready to slice, will it dice too??

In Topic: Aeronamics #2

05 April 2016 - 04:31 AM

So ventilation could result in decapitation or castration. It looks obvious to me that this could happen, yet the aeronautics team seems to think otherwise (hopefully). Am I missing something? Or will buyers end up missing something?


Who was that French guy that almost took his foot off when falling off a foiling cat?

If it can happen to him perhaps it is an option for all punters!!

In Topic: DC Designs

22 March 2016 - 10:19 AM

Thanks for all the responses, a lot to think about, I will experiment next sailing season with a few different things and we'll see how it all goes :-) good thing I have a few Nethercott backups if things go bad...I guess the good news is I have officially been told I am moving at the end of the year to live somewhere where there is a constant 25 knot sea breeze every afternoon with flat water, so hopefully my sailing will improve further with decent wind


Does this mean that you be assimilated as a "Sandgroper"?



In Topic: DC Designs

14 March 2016 - 11:28 PM

What are peoples thoughts on seat configuration these days?


When I built my boat I went with what I'd call the Vee seat (as opposed to a wedge seat). I went this way because I was building everything with 3mm ply with carbon tape & ribs and thought the Vee would be more resistant to twisting if there was any flex, as the bulk of the material was in the middle. The one thing I didn't like was when traveling at speed and just clipping the top off a wave, the flatter front would do a big crash and even though I never saw any cracks, I'm sure that sort of punishment isn't good.


It seems to me that the wedge shape shows a flatter angle to the waves and so shouldn't take as much of a hit. Can you still build these from Ply or do you need to go full carbon/ foam? Is the twist under flex just something I've imagined?



If twisting and flex is a problem- perhaps add some carbon uni to it so it looks like it has multiple "X"s going along the length on both sides.  Shouldn't add significant weight and would deal with your twising problem (probably)!


Happy building and sailing,



In Topic: F32 structure failure in Mooloolaba?

07 March 2016 - 07:45 AM


So sheer web is not secondary bonded?


Stop it. It's not a sheer web, it's a shear web, as in something designed to mitigate or address shear forces in a structure.


Sheer is the upper side profile of a hull, and has little to no structural significance.


Sorry to be pedantic, but words matter, especially in engineering.



Bravo got sir, but you have no need to apologise for your pedanticness!!