Comentarii la: Testul materialului carenei bărcii – care se rupe mai întâi? – Ep. 319 RAN Sailing

De: Mike Bourke

Mike Bourke — Mon, 10 Oct 2022 06:42:45 +0000

The strength of a boat has lot to do with its shape and internal structures.

De: Ammo Alamo

Ammo Alamo — Mon, 10 Oct 2022 05:18:14 +0000

What are the sawhorses made of? Are they store-bought or did you make them? From plans? I have a 30×40' building, but I won't be building a boat. I just built a 'balcony' with a window access so the cat who resides inside and keeps critters at bay can go in and out at will. The old balcony wore out after only 15 years, so I used treated lumbar sealed with waterproofing to try to make it last longer. You have a huge multi-year job ahead of you and I hope you get help along the way.

De: Fine day for sailing with Captain heather

Fine day for sailing with Captain heather — Mon, 10 Oct 2022 03:11:50 +0000

That was really cool to see, can’t wait to watch you build a Swedish boat from Swedish wood!

De: Ian Wood

Ian Wood — Mon, 10 Oct 2022 03:05:13 +0000

Nerdy guy here – this was fun and useful, and generally quite awesome! Hull shape would (will) help for all of these also, of course, compared to flat straight 25mm wide samples in uni-axial bending, as the compound curves will add strength and toughness due to the arch geometries.

De: Triggerhappy Ranch

Triggerhappy Ranch — Mon, 10 Oct 2022 02:55:05 +0000

When studying woodworking many years ago I came upon the work of James Krenov . He used what he referred to as "Oregon pine" with beautiful results. It took me quite a while (pre internet) to find out that it was Douglas fir. Besides being beautiful, it is a stable and resilient species and I was surprised that your spruce compared so well. Happy for you.

De: Ray Kelley

Ray Kelley — Mon, 10 Oct 2022 01:45:57 +0000

I live in brookings oregon and I've not heard ofit

De: Frank Knowles

Frank Knowles — Sun, 09 Oct 2022 23:08:15 +0000

Hi guys, I've been watching your videos for about a year now and have really enjoyed them. I'm looking forward to following your boat building adventure. Your material testing was interesting. I'm a structural engineer and I appreciated your set up and especially the laser level you were using to check deflection. However, I'm not sure you were testing apples to apples. Without getting too deep into the nerdy engineering, there's a difference between the overall strength of a material and the stiffness of a section of the same material. I'm sure that's not news to you as a woodworker. If I understood the testing parameters, you were trying to keep each test specimen roughly the same weight and width. That meant adjusting the thickness, or depth, of each specimen to even out the weights between specimens. However, stiffness is directly proportional to the cube of the depth of each of these rectangular sections. A little change in depth goes a long way to making something stiffer. That's why the Western Red Cedar seemed so much "stronger" than the other materials. Because it is a lighter wood (it's weight is about 70% of Douglas Fir and only about 58% as strong), you could make it a deeper section, and thus stiffer than the Doug Fir section. (BTW: Never heard of "Oregon Pine" as a wood species. Sounds like a marketing ploy.) Anyways, there are plenty of weeds to wander into regarding all this if you're interested. But between you and your marine architect, I'm sure you've got a good handle on it. Again, I'm really looking forward to your boat build. Best of luck and keep up the good work!

De: Olevib

Olevib — Sun, 09 Oct 2022 22:45:06 +0000

Enjoyed the video. Although the test wasn’t a scientific one, it clearly demonstrated your approach to every project that you are taking on. You guys are immensely diligent and methodical, when it comes to dealing with everything in life and sailing. I have no doubts that you will build a great new sailing boat, which is perfectly suited to your family’s needs.

De: mrvertigo23

mrvertigo23 — Sun, 09 Oct 2022 22:10:37 +0000

Are the old classics like Larch on Oak no good on a boat like the one you are designing m8 – loved the video as usual!

De: Raymond Nybakk

Raymond Nybakk — Sun, 09 Oct 2022 22:09:48 +0000

You should take a look at Duracell Project here on YouTube. He seems to be very familiar with vacuum bagging, and he makes it look way more manageable then a lot of other boat builders.