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Boat parts can be found in every nook and cranny of your house. Even in the freezer, thats where I keep the Sika Flex...

Hi Bert,

Nice to see you on the forum!
Drove past your school a couple times as my boat is moored near it.
So if you see anyone wearing a laughing polar bear* on his head walking into your...

Awesome project you have there!

May I ask why you chose wood over cough grp cough? Was is the weight advantage, the love for wood or some other reason....?

Cheers, Tom

Yes, but since you look at the difference between radial and longitudinal shrinkage, smaller longitudinal shrinkage makes for a larger difference.



And as most of us know, wood is very strong...

Duncan, I am sorry, but there is a flaw in your calculation.
You are comparing Radial versus Tangential and it should be Tangential versus longitudinal shrinkage. Also you should be multiplying by...

Thanks for the clarification, much appreciated.

I just had a look at the productlines of a couple of Dutch paint manufacturers and they seem to offer less alkyd-oil based products and more LPU...

Feazer, I really like the detailed analyses you usually give in your posts, but you are not saying that Poly Urethane paints are superior in flexibility compared to oil based paints, are you?
The...

And I'll add a little more :p

Last summer I did a couple of trips with me mate's 26 feet of frozen snot. Lack of headroom did not bother me and I am 6'3".
What I did find annoying though was the...

The first that comes to my mind is the Stormvogel.

It was designed by E.G. vd Stadt and owned by Bruynzeel (yes, the plywood guy).
As mentioned above it was featured in Deadcalm.
...

I think you are correct, Rbgarr.

Looking at a bunch of C.G. Petterson designs, it seems that the design is originally a motorboat with a soft top and a big mast, kinda like on the picture below
...

Thanks for the urls! With those sites/ companies I should be able to find out more.

BTW, I didn't know either that Petterson(jr?) designed the P1800. Nice old car that is...

Yes, I agree, but Petterson designed some extraordinary looking sail boats, so I haven't ruled out the possibility of it originally having been designed with mast, etc.

Here's an example of such a...

I recently visited a couple of guys that are restoring the Petterson that is on the pictures.
Does anyone know more about this particular design? It came with a mast and sails, but they don't know...

Nice work, Peter, very nice.
I didn't expect to see her in the water this season, but you did it.
I'm impressed.

Happy B'day from the Netherlands as well!

Naah, I am not serious on this one.
Just one of those ads you see that makes you wonder....
Thanks for the tip on the article.

http://link.marktplaats.nl/465222608

I just love these boats.
What do you think of the chances that such boats are salvageable after 60yrs of hard work? Pretty small I guess... :confused:

He learned from / worked at vd Stadt :-)

E.G. vd Stadt

http://en.wikipedia.org/wiki/E.G._van_de_Stadt

I recently tried some Kopi Luwak coffee.
Good stuff if you can get past the idea that it has been eaten, digested and ... by a cat.

Anyone ever tried this Biopin stuff?

http://shop.biopin.info/shop/index.php/cat/c6_Marine.html

Or Barend Palm perhaps?
...

There appears to be a sex difference too; men tend to lie to present themselves better, women lie (usually) to downplay themselves.

Nice video, I like how he brakes, clutches AND steps on the gas, all at the same time :ycool:

You can make that .EU adventure riding (except Scandinavia and perhaps Spain and some former Soviet countries).
Almost all asphalt here, hardly any dirt road or challenging off road tracks |:(

Mate of mine just bought a brand new multistrada 1200. He likes the ride, if.... it rides... Reliability is a big problem, he says. Spent most of spring at the dealer for repairs... |:(

I would...

I just had a go and sharpened 8 drill bits on my bench grinder.
The result is getting better, but still has "room for improvement" :)

Looks like I need a finer grinding wheel and a jig sounds...

Yeah, but learning to sharpen correctly seems to be a bit of a problem :)

Tried it a couple times, but haven't got the feel for it yet. Any tricks I should know about?

This drill doctor device looks quite handy

http://www.drilldoctor.com/

http://www.drilldoctor.com/components/com_virtuemart/shop_image/product/750.jpg

What do you think, is it worth the...

I enjoyed reading War and Peace (yes, the Tolstoj classic)
Also quite interesting are Something of Value and Uhuru, from Ruarke.
Bit heavy perhaps, describing lots of misery and suffering, but...

I looked at some data I have here for Mahogany and for each % rise in moisture content, expansion is as follows:
.15% rad .23% tan

rad meaning expansion perpendicular to growth rings, tan is...

Hmmm, are you sure about that percentage? That should be a very nice moisture level to work with. 15% is normal for well painted wood under the water line, according do Dave Gerr.

I have been asking myself similar questions as I noticed severe cracks on several parts of my boat as it appears to be drying out beyond the "usual" humidity levels.

If I were you, I would take a...

Also the potential difference (voltage) between bronze, stainless and galvanized mild steel is rather large, so there is a fairly rapid galvanic corrosion process going on with the galvanized steel...

304 is lower in the galvanic table, so IF you mix 316 and 304, 304 is the anode and likely to be the one that corrodes, if it does. The combination of 304 floors, etc that you can inspect easily with...

If you screw down a passivated piece of stainless, wouldn't you slightly damage the oxide skin and thereby making it active?

I think stainless is a less risky choice for a keelson than bronze,...

So you have had galvanized ribs and bronze/brass/galvanized and stainless steel screws for ages and the wood and fasteners are still looking good?

Hejdo Doc,

Crevice corrosion does not seem to be much of an issue in colder climates, so I think you can use good quality ss screws without much trouble.

I got a LPBC too!

A prize from the bung counting contest, won by Sailor's Brother, but redirected to the Netherlands, as my GF was getting a bit cold...

Many thanks for the great amount of knowledge you created and shared with us.

Rest in peace.

Usually I like it when people ask difficult questions and use newly gained knowledge in a constructive way.

***************.....................***********************.

[Deleted, was a bit...

As Mr Sibley says in his signature:


If you make an effort to understand what we are trying to explain, I may continue the discussion. For now I suggest you read into some engineering textbooks...

http://forum.woodenboat.com/images/misc/quote_icon.png Originally Posted by brucehallman http://forum.woodenboat.com/images/buttons/viewpost-right.png

Because of the angular...

That only holds if the forces are perpendicular to the grain only, but with a bit of flex, compression and what not, angles change a bit and then you have to calculate with angular/adjusted values....

When using tape you increase the surface that exerts the force pependicular to the grain (pound PER square inch, remember...) So ultimate strength will be larger. Watch the surface area of the ply...

DC; AC is used for alluminum to clean the oxide

Ehrrr, why don't ya just glue it?

Epoxy might workt, Loctite will do a proper job for sure.

I would braze it, if I were you.
It can be welded too, preferebly TIG, but is rather difficult if inexperienced...|:(

Aha, aus Hamboorg.

Da draussen in der grossen Stadt... stehen die Nutten sich die Füsse platt.... und mehr... :-)

Gruss, Tom

Bob Smalser has a good article on the topic indeed. It can be found through the link in his signature.
As for de-rusting; I had much succes with citric acid baths, followed by rubbing with steel...

Nice work, Jantje.

Jantje zag eens pruimen hangen..... You have any Dutch ancestors perhaps?