What floats your boat.

Can we compare your boat designs with Toms boat designs ?, for example compare boat designs gallery's ?

 

Hull lines anywhere?

 

I build boats. I design boats. Do you really think that Tom's gallery is ALL boats that he has designed? Good gawd man, he's asking everyone to design a boat for him because he admits he doesn't have the experience? Cue the Twilight Zone theme.

 

I have received a reply from teachengineering.org.
to quote from their email:-
" ........this explanation of buoyancy seems to be oversimplified.
.....it seems that you might be looking for this information for designing an actual boat - and therefore I think looking for other resources would definitely be more appropriate.
I appreciate that you brought this to my attention, because I do want to make changes to this lesson to make sure that information is not oversimplified in a such a way that it is misleading."


I too am by nature a contrarian but do try to remain logical.

This dispute reminded me of the joke by Spike Milligan "Archduke Franz Ferdinand found alive. World War I a mistake"

 

How about playing the ball instead of the man?

Tom may not know what he's talking about when it comes to buoyancy, but there's really no need to attack him personally.

 

I think Tom would prefer you "play the man", that will draw attention away from this crock of an idea !

 

There's a small photo here of the first series of a series of 3 models.

https://books.google.com/books?id=D...6AEwAQ#v=onepage&q=Caracat catamarans&f=false

 

The pictures of Toms ingenuity boat design demonstrates a lot of experience with trial and area over some years.
My self have not just looked at these pictures but actually seen in person Toms boat designs in action that inspired me to advance in the future Myark water craft designs.

 

Its a pity I can not get Google to see the pictures as I am in China developing multi tools for the marine market where Google is banned.

 

No one has yet been game enough to recommend a bottom shape for my World boat but apparently " most of us would like to help" but they quit.

I can not imagine any forum member recommending a flat bottom for this project and I was even expecting a suggestion for a tunnel or pocket which would reduce buoyancy and planing area for the shallow draft requirements.

 

That is the attitude that I like,thank`s.

 

Trying to find out what future buyers think of your product is good market research and market creation (making people familiar with your product) and no one with money to invest would accept anything less than reasonable proof they are be on to a winning investment with big cash payback.

 

You have done well latestarter thank`s and I have been looking at other resources.
I do not consider any forum debate a dispute but a sharing of information.

 

Yofish
It appears that Tom is still thinking that the shape, area is what determines the buoyancy. Not the simple axiom, that the buoyant force is the result of the weight of amount of water that it displaces. Not at all related to area. Just to volume.
If it were so, then Tom has created a perpetual motion machine, immerse an object in the water that has one side with more area than the other, which to Tom means with more pressure on one side, the object will just move along
The old adage " You cannot win a technical argument with a person who is not technically educated" is ringing in the background.
Toms comment earlier in the post " I have never met a competent engineer" pretty much sets an argumentative tone. You see Tom sitting in either a helicopter or gyrocopter, with the plastic components designed by a chemical engineer, the blades designed by an aeronautical engineer, the metal alloys by a metallurgical engineer, the engine designed by a mechanical/automotive engineer, the structural stresses calculated by a mechanical engineer and the electrical components designed by an electrical engineer.
There must be a moment of sheer terror when he has to lift up on the collector and trust his life to all the incompetent engineers that designed the components of this helicopter.

Now that being said, could you determine the amount of buoyant forces that a particular shape could produce from summing all the vertical pressures on the surfaces.
Certainly for a simple shape you could produce an XYZ equation to deal with the shape of the surface of the volume, but I am not sure if you could apply the differential pressure into the calculations due to the change of static pressure due to the immersed depth.

IF YOU WERE ABLE TO DO THE CALCULATION, the resulting upward buoyant force would be identical to the weight of water that the object displaces.

 

I don't know how you expect to profit from a new boat design tom. The planet is flooded with boats and there are so many good used boats available for give away prices makes for a very tough market. Even here where used boats used to fetch large prices boats they selling for a fraction of what they did before.