Affordable seaworthy cruiser

[Tinklespout]

Yessss!, it ends!

Thank Go..., oops., just joking!

Kim

 

[michael pierzga]

French life boat. Brest


http://[url=http://postimage.org/][/URL]

 

[SVO]

Guude from Germany

ebay.de/anzeigen/s-anzeige/rettungskreuzer-arwed-emminghaus-/97381349-211-157

mfG SV

 

[MikeJohns]

............

When looking at successful DISPLACEMENT seaboats, one of the first things noticed is the lenghth as well as hull height in relation to beam. When you look at Dutch lifeboat Carlot, its right there with hull height 6/10's of beam. Many boats go out to sea with other considerations other than ultimate seaworthiness but, when it really counts and lives are at stake the Ark's proportions are followed even if unknowingly by the designers.

Whenever looking at hull lines, thats something i always do if for fun or learning, and especially in hull beam/height relation, usually its the height thats added for hdrm and that many times signifies that the boat is more of a liveaboard/marina boat rather than intended to go onto open waters.

Stability both intact and damaged are the design criteria for the vessel form. Not the height of the topsides proportional to the length. Lifeboats have to fish people out of the water and the Dutch lifeboats are necessarily constrained in draft. How much of an internal fitout do you think that vessel has ?

You could easily make a very unsafe vessel with those proportions and there are far more as you say " successful DISPLACEMENT seaboats"with quite different ratios, in fact I'd suggest the majority.

Coastal life boats are single use craft designed for a geographic area and wrapped around the operational compromises.

From an Engineering perspective it's clear the Ark was a structural impossibility to be built in timber, that's irrefutable without dishonesty.

So why place significance on the proportions when the structure itself would simply collapse ? Either it's designed by a useless Engineer or it's an educational fable. Either way it was never floated without substantial amounts of raw magic. Something we don't have the luxury of with our designs today.
If you want a seaworthy cruiser, then start a proper SOR based design and use the science of Naval Architecture to produce something that works as a cruising home.

 

[goodwilltoall]

Heights are in proportion to hull beam and not length. A very wise man built the ark and it worked, just because todays engineers cant figure out how it was built just goes to show it ranks as one of the most advanced structures of all time.

Did mockup on existing hull to see how forefoot would look. Previously drew the keel from propeller to bow with a significant portion submerged at forefoot. The keel rake is to be just slightly lowered beginng at section 4'-6" (7" below hull) from there it rakes and terminates at bow, the molded Vee sections will follow the keel rake as originally intended from bow to about station 12'-3".

On paper it looked like a big area of work, not so much standing right in front of it.

 

[Richard Woods]

A very wise man built the ark and it worked,

But wasn't it wrecked???

and I quote

"The ark was exactly six times longer than it was wide. According to the Life Application Bible study notes, this is the same ratio used by modern ship builders".

My italics - really?

Richard Woods

 

[SamSam]

Either way it was never floated without substantial amounts of raw magic.

There's the rub. With Goodwill, we're dealing in Faith, as in Raw Faith.

 

[bntii]

From an Engineering perspective it's clear the Ark was a structural impossibility to be built in timber, that's irrefutable without dishonesty.

.

Mike- can you provide the cliff notes version of why?

Thanks

 

[goodwilltoall]

As time goes on, have reason to believe this will be a very good boat, that is very encouraging and is even more reason to press forward come Spring; making statements, so be it.

I thank the Father in Heaven that there has even been room to correct some mistakes and the changes actually work for a better design.

All praise to His son, Jesus the Christ.

Looked at Setsail site today and reviewed some of Steve's thoughts on hull shape, it reminded me that some of the ideas he advocated, I kept subconciously since he was one of the very few promoting long lean hulls. One of the big differences is his rate of speed of about a minimum of 10kts which contributes much to stability. On a long voyage a VL .8 to 1.0 is acceptable here, this hull form should work well for that.

 

[goodwilltoall]

Richard,

Ark was never wrecked, it fulfilled its purpose and came to rest upon the mountains of Arat.

Look at oil tankers, cargo carriers, freighters, rescue boats, ferry boats, etc..., maybe not exactly 6 to 1, sometimes a little more or a little less, but overall usually long when compared to modern 3 to 1 pleasure boats.

 

[MikeJohns]

Mike- can you provide the cliff notes version of why? Thanks

......... A very wise man built the ark and it worked, just because todays engineers cant figure out how it was built just goes to show it ranks as one of the most advanced structures of all time.............

mmmm.....It's not the type of construction, it's the loads and the required sizes of the materials to carry the resultant stresses. You can idealise the construction as much as you like to avoid those annoying member interconnection issues and it still doesn't work. Not even if you carve it out a solid tree or laminate it from sheets.

There are little annoying things like Material Properties that just get in the way of making a rollicking good tale a possibility. It's carefully side stepped by every Ark apologist but remains as an embarrassment.

It's just as allegorical as a flat earth, or Heaven being above the clouds just out of sight where it can be reached by a tower.

The best you can learn is that the supposed Ark of Noah was not based on any sweet spot proportions for seaworthiness of a dumb barge (which lies beam on in waves). Neither does a dumb barge of any design make a sensible basis for designing a power cruiser.

 

[SamSam]

Heights are in proportion to hull beam and not length. A very wise man built the ark and it worked, just because todays engineers cant figure out how it was built just goes to show it ranks as one of the most advanced structures of all time.

Did mockup on existing hull to see how forefoot would look. Previously drew the keel from propeller to bow with a significant portion submerged at forefoot. The keel rake is to be just slightly lowered beginng at section 4'-6" (7" below hull) from there it rakes and terminates at bow, the molded Vee sections will follow the keel rake as originally intended from bow to about station 12'-3".

On paper it looked like a big area of work, not so much standing right in front of it.

You've got to quit with the Bible stuff. It's like putting your life in the hands of Bert and Ernie, and if you put other peoples lives in danger on the basis of mythical BS, you should just be shot and thrown out in the woods.

I can't figure out if you have a definite plan or what. You started actual construction, but it seems like you're always coming up with new ideas. It's kind of hard to adapt and change plans once the build has started. Noah didn't do it. God didn't tell him to modify the plan.
When you look at the photos of the rescue boats/ life boats like this...

does it make you wonder at all if your boat and your engineering could handle a situation like that? I mean, if you found yourself in a situation like that, on an earthly level, you do realize God is not going to just pluck you out of it and put you somewhere all warm and cozy? You do realize you will probably die, don't you?

I don't remember, so refresh my memory and give an honest answer....why do you want to do this?

 

[goodwilltoall]

Mike,

Noah learned out how to isolate point loads on wood, compared to that, the rest is easy. The building logistics are what amaze me.

Go to Answers in Genesis to see built in wind vane at stern to keep bow into waves.

 

[Richard Woods]

Because of the scale effects big boats are more stable than small ones, so can have different proportions

Look at the photo above and imagine being broadside to those seas (and please don't say that will never happen)

And don't worry, GWTA will never finish his ark in his lifetime, after all it took Noah 100 years to build his and he knew what he was doing

Writing that makes me realise that weather forecasting was a lot better then than it is now

and what does this mean?

Mike,

Noah learned out how to isolate point loads on wood.

Richard Woods

 

[goodwilltoall]

Sam,

Dont want to go through that but it should be prepared for if long voyages are planned. People get into difficult situations; think of Noah, Moses, Jeremiah, etc... God delivers them through adversities but I still wouldnt put myself in deliberate danger, thats negligence.

Since I am made in the likeness of God, I like to design as well and try to do it well. You see the boat, what makes you think its unfit? What according to you should be changed?