What floats your boat.

Are you able to access any of this?

http://www.boat-links.com/boatlink.html#top

.

 

You realise, of course, that a tunnel will increase draft, just like a V.

 

Thanks for that.
Yes I can access this great web site but I will need time to look through to find the Caracat as I am about to go to the CNC and EDM wire cut factories this moment and will search tonight.

The Caracat suits what Tom is trying to explain about extra floatation built into a boat design.

 

My rigging is thoroughly chafed by the statement: "never met a competent engineer".

If one does not have confidence in engineers (or established science) then driving an automobile, crossing a bridge, flying in a plane, entering a large building, Undergoing an MRI test, would be a foolhardy undertaking. To be sure, an incompetent engineer was responsible for all those dangerous things.

 

I never met an under-charging dentist, but that is another story ! Tom is doing a wonderful job of making himself look like a complete rat-bag with this thread, which he should not have started, and instead should have just quit while he was behind with the wacky buoyancy theories.

 

Images show an experiment to see how just adding extra buoyancy and a little weight to an object effects draft.

 

Here's a shocker Mr Kane. Assuming that both objects are actually floating in the tub, the one in the first photo shows more active buoyancy than the one in the second photo; the difference being the weight of the added floats.

Oh, and the correct word is "affects" not "effects"; one being a noun and the other a verb. To ward off calls of being part of the proper English police, I'll add that using correct English by a "competent engineer" might save your car from blowing up when you turn the key.

Competent Engineer

 

If the object in the image did not have all of that added surface area for the water to act on it would have a very deep draft.

Buoyancy and shape does count in keeping an object floating where desired.

I hope some people are not trying to create such a fuss in the hope of having this thread shut down.

 

I would like a recommendation for the bottom of the hull required to suit best the customer requirements in post#6

Realize is spelled just so seeing it is very necessary to spell correctly.

 

And your point is?

Several competent engineers have posted in this thread about the relationship between buoyancy, surface area and it's orientation, and immersed volume. Also discussed has been the basics of the physics of the hydrostatic pressure acting on the immersed surface and why the orientation of the surface area matters for buoyancy.

The net effect of the physics is the total buoyancy is equal to the weight of the displaced volume of liquid, and the buoyancy acts vertically through the centroid of the immersed volume.

What do you disagree with?

 

Yes, Marine is a market I would not mortgage my home to be involved in but when you have a product that has great potential in areas like safety and new innovative ideas and practical application for the future like using different fuels
and new building materials for the Marine industry building a prototype for a customer to a design that appeals to a World customer base is just a start to bring together better products for the environment and people.

Personally I have moved on from boats to a vehicle more suited to my needs.

 

No one has made a recommendation for the bottom shape for the project in progress as in post#6

 

You said your self you would like a vee bottom, no keel with just a metal rub strip. How about just as deep a vee as you find you need for acceptable tracking and ease from pounding. Introducing a bit of rocker would also help with tracking. Both vee and rocker also increase draft, It is said a boat is a series of compromises you seem to of have found a happy medium with your boat. What more do you want less draft?

 

Realise is also spelt just so, especially outside North America.

 

I don't think your customer knows anything about boats . Tell him to invest in real estate instead.