STEEL HULLED AND ALUMINIUM HULLED HEESEN SUPERYACHTS - BUT WHY???

[@cedrusthe1st]

Thank you Mr. Seal, and especially thank you to the folks at Heeson for the time and effort to answer so many of our questions. Wonderful.

[@minemine6250]

Excellent presentation and well done Heesen for your explanations.

[@justreallybored6014]

Gotta say, Heesen did a great job answering questions. I would love a full hour listening to them talk about their craft. I feel like with your channel, and the other channels that you are friends and affiliated with on youtube, that the builders are possibly becoming more popular than the owners. Something that many of the builders are catching on to. You never know, some little youtube viewer with only 2 pennies in their pocket could become a rich tycoon one day and these videos might make them sway their decision to who they want to hire.

[@skiingfast1]

These speakers were very detailed and specific while using lay details. This is a rather incredibly informative video.

[@fisherh9111]

Yes!! Awesome. Thanks David.

[@Yachtsforsaleblog]

Glad you enjoyed it!

[@fisherh9111]

It exceeded all my expectations. Thanks again. I am just going through the yachts on Heeson’s KZbin channel now and they have some beautiful yachts. They’re clearly a high performance yacht builder.

[@bradvitz2531]

This was outstanding!! Thank you David! And, thank you Heesen

[@franganmacloud8046]

Bravo David!

[@roonbare2769]

Thank you so much Heesen! And Mr. Seal! I am quite curious the corrosion maintenance cost on a steel hull, vs an aluminium hull of similar length/beam .

[@roberttorres809]

Thank you Mr. Seal and Heesen yachts for that explanation…..

[@stephenparkes626]

Great video David many thanks for sharing it with us land lovers

[@rudideghelt]

Here is a reason why I like this channel, thank you David and the team.

[@randystrand908]

Really enjoyed the interviews and all those who participated. Great presentation! Thank you all.

[@brianb4942]

Excellent insight into the engineering side of building these yachts. Thanks to you and Heeson.

[@almostyummymummy]

I love that reverse window style/look. Regardless of speed - or lack of - it has that 'Get the hell out of my way' feel about it. Add to those nice (!!??) sleek, gentle curves... Yummy. I'm very quickly becoming a fan of the company.

[@randystrand908]

I had the same thought re windows... Guess I'll have to order those on my next and first custom blue water! ; )

[@bear88mb]

thanks to heesen- they demonstrated strength and character with their reponse

[@robgrune3284]

good advert for Heesen. Crossing oceans in near gale winds, I have found a steel deck+hull to be a quieter, more comfortable ride for long, continuous passages over 2000NM. Also, steel can survive a modest impact: Al and GRP cannot. Al corrodes just as easily as steel in salt water. etc.

[@thisforbirdie]

That was pretty amazing. Thanks to Heesen and David seal. Well done.

[@alwyngulzar522]

Awesome videos, incredibly informative and with such a high level of attention to detail. Getting a company like Heesen Yachts and it's executives to give direct comment from us peasantry is greatly appreciated. Thank you! Keep up the great work.

[@gratefulot360]

Wonderfully informative video. Thanks, David!

[@woody41165]

What an excellent informative video, thank you very much David and to Heesen for the great explanations.

[@Dylan-iq1de]

Bedankt Heesen voor de uitleg!

[@robertrutherford9057]

Questions I've always had, finally answered. Well done!

[@MIDTOWNE1]

Love to hear the professionals go into the details, especially the guys who are literally the hands on guys. As we are called in America the blue collar guys.

[@FOBob-sr1fd]

We have to go with steel because Brits and Americans can't agree on how to pronounce "aluminum." 😂

[@Yachtsforsaleblog]

😂😂😂. Don’t get me started on “basil” and “tomato”!

[@grondhero]

@@Yachtsforsaleblog Or "Gigayacht" and "jigayacht." :P

[@grondhero]

Americans use *aluminum* and Brits use *alumin i um.* ;)

[@darthkek1953]

@@Yachtsforsaleblog Or "nuclear" vs "nucular", or "Van Gough" vs "Van Go". Or directly relevantly for yachting... "coupé" vs "coop".

[@kutark]

*cough* zed *cough*

[@borisbuliak3626]

Much obliged for the info. 👍👍👍

[@patrickabas1112]

Wow! Great information, I have heard about it but never saw the material in reality. The negative (inward sloping) windows make it stronger in high seas and have at least two more benefits. One a better view with less reflection and the second a cooler temperature on the bridge as there is less direct sunlight flowing in. I would find it interesting if they have ever thought of combining Aluminium with Carbon/Kelvar and glueing them like currently done in Aero and Car industry.

[@ruuddekoff1090]

As far as i know Heesen doesn't want to work with composites due to environmental reasons.

[@kutark]

Really fantastic that they were willing to take the time and money to produce videos like that. Fantastic. If/when I win the lottery they will be the first yacht builder I contact :)

[@chrish2996]

Hi David. Another fantastic video. Great video thanks 😊

[@charleshannant252]

Awesome!!!! Thanks for sharing

[@masterabk3761]

Thanks so much for the update

[@bigmalaka9740]

This is the most informative video from you to data.

[@blackal53]

Well presented. It is refreshing when a presenter who hasn't the technical knowledge of a subject (mating Alu/Steel) - defers to the people who do....... for the answer.

[@tbatba7598]

Excellent content thank you

[@harrynugent2632]

Excellent and thanks

[@stefanodrago]

Hi David, this video was really interesting! It's really great when you can involve the experts to talk about their craft, amazing shipyard, awesome video!

[@godlyobject6509]

This was fantastic!

[@chrisschofield8597]

Really great and informative video really enjoy your presentation David 😃

[@radudamianov]

Best video on your channel ! Congratulations!

[@Dylan-iq1de]

I am addicted to the music after watching almost all vids hahaha

[@lmcognitio2049]

I'm learning. I didn't know this material existed. 15 % doesn't seem like too much damage. Mostly, if what's inside the yacht is what determines how much your pocket will suffer... Carlos is where the magic happens... Aura, not only the name is beautiful but what a hot superyacht (cupid just got me). I love the simplicity of the interior design. Talented designer... Heesen (I expected a German accent) 100 % English. Interesting questions and answers... ⚓

[@berndhaverkock6070]

Had subscribed to the Heesen KZbin channel already quite some time ago 🤓

[@HPSCH1950]

Great and informative video, thank you

[@EricWayne0807]

Great video sir

[@larrypardi9143]

Great content.

[@petrgurgen479]

I don't know how in terms of marketing as for a charter this is the perfect option !!! But for your own pleasure and from the point of view of the owner, iron and aluminum can not be categorically combined because the effect of water infusion on the metal no one has canceled Yes, and many say that matals are slowly moving into the past and future for Carbon! Thank you very much for the very instructive material for many people

[@LawrenceBroussard]

Very educational.

[@grondhero]

*Yacht broker:* You can't weld aluminum and steel together. *Curious person:* How do you put them together on the same boat? *Expert:* Explosions.

[@randystrand908]

Hummmm, I thought they answered that question very well.

[@lgriestra]

Very interesting.

[@arno9711]

Hi Dave recognized your voice on a video of Benetti recently wasn’t able to comment there maybe you could give them a nod, good marketing and all if you let your viewers discuss and built a small community.

[@Yachtsforsaleblog]

Hi Arno, yes...I do a few collaborations with Benetti. I completely agree with you, everybody should allow comments on KZbin channels, it's great for engagement.

[@rkm237]

One thing I didn't see mentioned is the collision/impact differences. In "general" steel is a lot more ductile and will deform from an impact, whereas aluminum will tear and buckle. However this rule might not apply for the very specialized alloys used in ship hulls. So I'd be interested in an expert opinion as to differences. My other thought is that for a boat with the proper equipment in steel, if you got a small puncture, you could grab your underwater welding gear and dive gear, and a metal plate (hammered to the right shape on your workbench anvil), and reseal the hull. I don't believe that is possible on an aluminum hull. But maybe this is such a rare occurrence that it basically just isn't worth considering? Or maybe there are other solutions like some type of underwater curing rubber sealant that can be used in an emergency?

[@marcvloeberghs881]

Hello this two alloy structure is often used for fisher boats , the main raison why we can not weld both alloys on each other is the different fusion temperature, that is also why first the steel alloy is welded witch has a much higher fusion temperature than Aluminium, on the longer term the electro-potential difference between the two alloys will have the joined corroded away in no time.

[@reinierbrantsen6623]

Quite enlightening, thank you very much. I know it is a bit much to ask, but I'd like it very much if at some point you could produce a sort of step by step video of the construction of these fascinating, larger superyachts.

[@dmd2652]

Yo great vid bro loved it

[@martigrey5872]

The australians are building 130+m ferries and warships from aluminum.

[@Jeroenbdesign]

Haha heerlijk Nederlands allemaal! Maar top job hoor Heesen!

[@davesemrau3795]

This begs the question: How big can you build with fiberglass ?? Thank you for this video.

[@randystrand908]

My guess would be that if you build using a steel frame, you could go as big as you like with either material...

[@stevehowe9677]

Refreshing to see questions answered without all kinds of roundabout nonsense!

[@justreallybored6014]

Please read! They keep talking about aluminum being lighter and then they put in larger engines. My question is, what about aluminum with 'steel engines'. They keep comparing aluminum with faster engines vs steel with slower engines due to weight, but what about the transverse?

[@chasethelegendarycat2430]

Love the video! Where did you get that lamp though?!?!😍

[@neilansell6834]

Whatever happens to Wider Yachts, are they still in business... thank you for your continued amazing content.

[@stradivarioushardhiantz5179]

New knowledge #TriClad materials 🤓

[@justreallybored6014]

Why not use transparent aluminum? Much stronger and can hold multiple whales in the bilge. *Hoping someone gets the reference*

[@Dirk_Taggesell]

Someone did :)

[@chrisbetts6194]

US Navy Independence-class ships have trimaran hulls made entirely of aluminum. They could do 40k. They are about 418ft (127m). Just for reference when talking about size of alum vessels.

[@lexburen5932]

aluminium. it is not aluminum

[@robertrutherford9057]

Anyone still on the fence about aluminum hulls show look at Utopia V after her accident with a tanker. Tanker sank, Utopia V went to a port . Seriously sold me on Aluminum hulls.

[@guenthermichaels5303]

The big advantage of aluminum is when you compare to a GRP, fibre glass yacht.

[@marceloborba387]

Hi! One question About "niobium (Nb)" in steel, Wouldn't it get stronger? P.S. My english is not good... 🤷‍♂️

[@RIPPERTON]

Questions thoroughly answered ? Not really Have you overcome electrolysis corrosion in aluminium hulls ? Yes. How ? ............... no answer

[@galeriafuentes]

Lol

[@omgblabla514]

please make a full video tour of lana please please....

[@chandlerbingbong]

Whats the difference between a nautical mile and a normal mile?

[@jayzurkan8965]

Great show, but it didn't address the differences in each material's ability to withstand an impact with floatsam such as a large log etc..

[@fifthof1795]

Steel or Aluminium..? Yes.

[@guenthermichaels5303]

How much stronger is aluminum than steel? For example, there is a rule of thumb in boat building that aluminum is roughly half the strength of steel at one-third the weight. This means that an aluminum vessel can be built at a given strength that is two-thirds the weight of a comparable steel boat.

[@seantwomey396]

If overall costs of steel vs aluminum are within 2% and both are of equal strength and aluminum is lighter and therefor faster, why not always specify aluminum ?

[@seantwomey396]

@@Sidowse thanks for the detailed and understandable response. Your view of all aluminium yachts now makes more sense.

[@punkask3619]

We need a yacht with a Carbon Fibre Hull

[@123OGNIAN]

Azimut grande s10.One light hit and sinks,just like a supercar againts a wall at 10 km h.

[@punkask3619]

@@123OGNIAN Carbon Fibre is stronger than steel, maybe supercars are made of tin

[@Aron-79]

💯🤝👍🏻👍🏻👍🏻👍🏻👍🏻🍸

[@MrRich2u]

The hull design has more to do with the draft than the steel or aluminum construction. Steel is going to be used in a full displacement hull. Where an aluminum boat is probably going to be semi-displacement.

[@lexburen5932]

or plaining hulls

[@antbear13]

could they put a door over the tenders to cover them like with Lady Li?

[@beschantz]

You talk alot about the design and construction aspect of the two metals, but only briefly touch on the owner/operator experience. Here are some theories and more questions based on no experience whatsoever: Aluminum, being highly corrosion resistant, might give the ship a lower long term maintenance requirement. Over time, that could pay for the higher upfront cost of production. Also, maybe it could stay out of drydock longer? Also, you mentioned high speed performance, but do people optimized aluminum ships for fuel efficiency? The lighter aluminum ship might get tossed around much more easily in weather than a heavy steel hull, making the open ocean an uncomfortable ride. As you said in the video, that would be offset by the ability to glide over shallow reefs with ease. For resale, I guess it depends what most people are looking for in that size of a ship. If people don't mind being relegated to the Caribbean or the Mediterranean, then the maintenance-free nature of aluminum might be a great selling point. If people are looking for an "I can go anywhere I want" vessel, it might be harder find a buyer. I'm not adequately informed on current market trends. Can anyone comment is this?

[@rkm237]

I have only information from my reading, but my understanding is that since both hull materials require annual haul-out and bottom anti-fouling paint, that the cost of that must be at least 90-95% of the cost of corrosion / barnacle hull maintenance costs... so the different can't be more than a few percent.

[@wilkinsonyachtbrokerUK]

How doesnt the executive chief officer not know the maximum gross tonnage or size for aluminium? wouldve thought thats an easy question!

[@silluete]

How about titanium? are titanium superyatchs possible?

[@rkm237]

I wonder... titanium is a very tough metal, which I would think would be important for a hull. Not sure where it is on the galvanic scale and if it could be protected by normal methods. Actually - now that I think about it, aren't navy subs titanium??? Good point.

[@lasarith2]

If you wear willing to spend a lot more money for the Titanium then sure why not .

[@nevinkuser9892]

You sure they're not joining aluminum and steel with adhesive? 🤔🤔🤔

[@UnipornFrumm]

i tought they bolt them

[@paulstevens7694]

Why carnt you achieve the same top speed with a steel hull that you can with an aluminium hull

[@Yachtsforsaleblog]

Hi Paul, Steel is a much heavier material. It's the same reason that my 60Kg colleague Ed beats me at gokart racing.

[@010bobby]

You can cross the Atlantic but not the Pacific with that range...

[@mojojojo_BB]

One of the first questions has me puzzled. What is involved in the 'structural maintenance' of a steel hull and how is it different than an aluminium one? Thanks.

[@brianwellman8462]

Why do they build the super structure from carbon fiber?

[@mojojojo_BB]

Cost.

[@whiskysamurai]

Aluminum. Al-u-mi-NUM. N-U-M.

[@mojojojo_BB]

Only Americans say aluminum, the rest of the world says aluminium.

[@gwmu7745]

In Germany we Saint Aluminium.... Yes Yes Yes so.sorry we are not the rest...

[@elizabethv.mutimaaya4003]

What are you skimming over Mr Seal?Please share..Thank you

[@eccentricsmithy2746]

Steel haul all week long. Aluminum hauls are way to soft. The slightest bump to a log or anything floating just under the surface you will go down like the Titanic.

[@osu3221]

Steel is better, I KNOW this, I could give a fluck what some English men drinking tea in suits say about it. Aluminum is shit.

[@Irishandtired]

This is old technology. Nothing to see here.

[@number1parrothead741]

Steel breaks ( Think Titanic ) and aluminum stretches

[@naturalmystics-kd9vt]

Steel is better

[@klasv7174]

The way you Brits say "ALUMINIUM" is so funny to me...

[@Yachtsforsaleblog]

I think we spell it differently too!