A close look at the Boat Deck

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[yachtdesignvonahlen]

As a naval architect I have designed a number of aluminium boats. Electrolytic corrosion is the biggest issue on aluminium boats and early protection is way easier and cheaper than repair. The key point here is to consistantly (!!) isolate Aluminium to S/S. We have already noticed serious corrosion within one season. We usally design washers on both sides which are a bit oversized in their footprint (a bit larger than the part they isolate). We use POM (mostly known as Delrin) or similar materials in a thickness of 2-5 mm. Also make a kind of bushing around the threads of the screw with Sikaflex or similar. As others have already commented, I would also suggest finding a more professional solution for the lifting device and more urgently to weld strong hooking points on the transom. To get rid of the ratched strap which I consider being dangerous. Make sure, the area is reinforced with a girder or a set of girders behind. The transom itself will only be 4 mm and not rigid enough. But all in all I think it may not be the most modern or sophisticated boat, but I agree that it surely is sturdy and well thought out. A very capable longe range cruiser and beautifully maintained. I will love to follow your journeys. Cheers!

[talequibond]

Tristan.... I just wanted to compliment you on your exemplary and unmatched attitude. In all the videos you've posted and shared over many years, you always exhibit an unwavering positive outlook; you are always perpetually optimistic; and you are always smiling from year to year. Whether you are aware of it or not, you're not only sharing information and teaching your audience a little bit about being a superyacht captain, you're actually teaching your audience a much more valuable lesson -- How to be happy and enjoy life, and how to make the best of every situation. So thank you for sharing your videos and positive attitude with all of us. Wishing you all the best in all your present and future endeavors.

[jaclroberts]

I can only speak from an aviation point of view, but when connecting ferrous and non-ferrous materials we always used a zinc-chromate jointing compound, it would always stay "wet" and was very effective at preventing corrosion.

[cpl_]

I never realized how much attention to detail you have. That is TRULY down to the nuts and bolts of your ship. I guess that should make the owner very confident that he picked the right man to command his yacht. You seem to be treating it like it is your own, and that is in my opinion, the mark of a great person and leader.

[LauwersFreddy]

13 people, because the captain goes down with the ship 😉

[WhiteWizard]

So very happy that you have a new boat to show us! I've really missed this side of you. Well done sir!

[fsp]

It shows the owner takes great pride in this beautiful vessel. ⚜️ As Captain, you take great pride as well. ⚜️

[paulkersey]

I was all in on the tender but then saw the welding on the t-top, (I'm sure its fine but they usually look much better), the small backing plate and lack of galvanic corrosion mitigation. All of these are very easy fixes (as are the addition of additional tiedown points. Safe working load. Thanks for taking us along.

[stanleyedwards]

12, safe working load, bushings are a good idea to isolate SS and aluminum. Lifting gear on tender shoulder be more robust….Glad to have you back!

[neilwharton]

One of the best things I’ve used is Duralac it’s used on aircraft to stop corrosion between aluminum and stainless steel, also used a lot on sailboats on rigging etc it’s by far the most effective product. The t top needs some nylon washers and a tiny bit of duralac

[richardkowalski]

SWL means Safe working Load, Max number of passengers = 12. I would advise the brackets to lift the boat to be strengthened. also look at a different way of strapping the boat to lift it so you don't have to remove the canopy every time. Look into spreader bars. I'm so glad your back being a captain, I like this content

[zedhead]

So happy to see you as Captain Tristan again!

[felixniederhauser]

SWL (Safe Working Load) is defined as the maximum safe load that the lifting equipment can lift, move, suspend, and lower down to the ground without any problem of breaking.

[SuperGemma]

hi mate me again, galvanic corrosion occurs when the electrical conductivity has a large potential difference between the 2 metals, alloy and S/S has a fair gap between them so one will become an anode and the other a cathode if connected with an electrolyte ( salt water ), I will probably get shouted down for this by internet experts but! you have 2 options in my opinion to keep the corrosion away, 1. separate the contact of the S/S with rubber or some inert material to prevent contact, including the through hole. 2. attach a zinc anode ( just a piece of square stock and shape it slightly for more contact ) inside the cabinet out of the way and this will corrode instead of the aluminum as the potential difference is larger between it and S/S .
hope this helps mate, love your work

[DmitriiLunin]

A life raft on each side must accommodate 100% of the crew + 100% of passengers = 12 people in the case of the ESPERITU SANTO vessel.

[phil]

Tristan you're absolutely right about the contact between stainless and aluminium. You must have a separation or you will get corrosion.
Also, those lifting eyes need beefing up. There will be a huge amount of strength in sheer and pull but I always think if it doesn't look right, it probably needs improving. Good finds that will increase safety and reliability.

[KO-pkdf]

With US Navy aircraft we used to use water-displacement and anti-corrosion coating on all fasteners then mix and spray on a sealant coating. Then paint if needed.
Once again I really love these kinds of videos from you. It is nice to be able to go along with you on all your inspection and the thoughts you include us in. The interaction is fun.

[rogercouzens]

Great video, really interesting! Good to see safety equipment being well maintained! 👍👍👍🙂

[jo_Baum-Heine]

The yacht was build in 2002 (<500GT) under the Large Yacht Code 2. There it states under 13.2.2.3: "For vessels less than 85m in lenght a sufficient number of liferaft should be provided on each side of the vessel."
So this could be 12 in total looking only to the size of the liferaft. But the real figure is stated in the Safety Certificate.

[sparkyone-gmyk]

Hi Tristan, 12 is the maximum number of people the boat can take, the other one is a backup , and S.W.L stands for safe working load, I hope thats correct !😊