Coolboats to admire

Priscilla

Super Anarchist
4,654
3,494
You can cut it down to the stump, and it will regenerate from that stump
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Willow I have spent the last couple of weeks eradicating damn tree of the Devil.
 

Diarmuid

Super Anarchist
3,905
2,031
Laramie, WY, USA
It looks a bit like cypress. What does it look like after it has weathered for a year or two? I went on the website of the primary provider, and it looked like an awful lot of checking in the material.
That was my question about dimensional stability. As a general rule -- not always, but usually -- the denser & harder a wood is, the greater its rate of movement with internal moisture content. Teak may be more naturally stable than the locusts, even tho it is only 10% less dense. Might be structural quirks, too: wise to avoid white oak in unfinished exterior use, because its large medullary rays + case-hardening during the drying process may lead to internal checking (honeycomb).
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Never worked with locust, so I can't speak to all its behaviors.
 

GlennP

Member
163
152
PNW
Looks like the discussion about teak, a few pages back, missed the key idea that old growth teak is orders of magnitude better for boat lumber than quickie “farm raised” teak. Same as old growth spruce and fir, old growth teak trees exhibit many hundreds to thousands of extremely thin and uniform growth rings. This makes the grain tight and consistent - allowing long planks and exceptionally even distribution of stress and strength. Second growth usually offers none of these desirable characteristics, due to rapid , short growing conditions that result in fewer, wider annual growth rings.

Also old growth forests were extremely effective in creating optimal, large scale growing environments - balanced and evenly distributed nutrient, soil, and water sources, with lots of beneficial fungi in the soil to promote healthily root systems, optimum nutrient and moisture uptakes, etc…. Once you clear cut the forest, you destroy that entire ecosystem, and end up with inferior quality second growth lumber growing conditions.

BTW, a big issue with second growth teak is actual uptake of sand and fines from the unfiltered soil by the root system into the trunk of the tree. Teak draws a profuse amount of water into the trunk and branches. teak roots actually draws fines and small sand granules out of the soil, if the soil isn’t filtered and protected by old growth understory - mosses,small plant matts etc. This unfiltered uptake results in the random dark streaks you will see in farm raised teak lumber. The streaks are basically concentrations of dirty water - sand and silt actually, that has been carried up the Cambrian on each tree ring till it gets deposited somewhere along the nutrient route. these dark streaks are weak longitudinal strakes in the wood, often the cause of splitting in milled planks.

so lots of imperfections and substandard conditions in second growth teak that you wont find in the old growth stuff. In many teak growing countries - mostly south east Asia- the remaining old growth stands are considered an endangered specie. usually the few stands that still survive are protected as national treasures. Honduran Mahogany has a similar status… and level of unobtainability.

end result is farm raised teak has a lot of random variability in growth rings and deadwood. You have to go through a lot of poor quality timber to find consistent, high grade wood. So the cost for usable, good looking Board feet of material is often very high.
 
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Jud - s/v Sputnik

Super Anarchist
6,962
2,140
Canada
Cool boat, or more shit on the oceans? Maybe both. I mean, I’m super happy for Angus Rowboats, who’ve designed and built some very cool boats (and done some very cool things: first entirely human powered circumnavigation of Earth, I believe), but I guess more and more drones are an inevitable development of humans’ expansion of their reach to invade the far corners of the world…”we’re actually a data company…”

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eliboat

Super Anarchist
2,577
978
That's what I meant about locust being a weed tree. It grows everywhere, whether you want it to or not. :D You can cut it down to the stump, and it will regenerate from that stump and send up ten more locust trees from underground runners. It grows relatively fast, even in very poor soils (it's a pea plant, so it fixes its own nitrogen). They are native to the US & can survive in every state in the lower 48. The wood is practically indestructible. Only shagbark hickory is harder among commercial species. I also find it rather pretty, tho purists might find its color variation too much for their boat decks. Honey locust is a bit quieter (and softer) than black locust. Black locust:
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Honey locust:
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One of the odd things about Black locust is that it will rot when it’s alive…. But it’s essentially impervious to rot once harvested.
 

Steam Flyer

Sophisticated Yet Humble
48,115
11,745
Eastern NC
It is going to be a glorious mixture of metric and imperial components. (Just like the rest of the boat.) It shall deter European rudder thieves, as manual transmissions in small cars baffle joyriders.

Make sure you use a mix of Allen heads, Robertson, and Phillips. And on exposed ones, use slots and clock them... then polish inside the slots with a dremel and Wenol.
 


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