I'm designing a small 9 ft Runabout. My boating experience comes from Modern Performance Racing sailboats basically carbon-fiber triangles, the noses are sharpened plum, and they slice right through the wave, which roles right over the top of the boat and out the open transm. It's going to be a wet boat but it'll get you anywhere and I wanted to surf. I've also been surfing my entire life
How you go with your build. I am currently building something similar but 15ft, with a wave pierce bow, and 3 steps hull with a 27deg deadrise. It will be a very wet but very fun boat!
That mid section S shape curvature has been used by Maldivian in their traditional wooden boats called dhoani and bokkura for ages. Which stabilises the boat in the maldivian seas in Indian ocean in-between islands.
The line drawing front and rear views @01:24 made me think of viking ships, drakkar (dragon). Water hasnt changed but how we understand it certainly has.
Nobody has yet mentioned that his designs are almost identical to the design used by Striker Yachts. I ran a 44ft Striker for ten years and it was a slow boat, and in moderate seas the hull used to suffer from a phenomena known as “Chine Walking” very scary stuff in a choppy sea! IMO a dreadful idea, the only way to go is a deep-V I currently run a 65’ Viking which is a deep-V design which by its very design makes it a great sea boat!
I've been looking everywhere online for this hull that I heard about somewhere a couple years ago. I typed SHR hull design and SRH and but no luck and was starting to think I just dreamed it then today I saw your thumbnail picture and clicked. To my surprise it is a video by the designer himself! I'm trying to see if your concept of inverted concave stern section can be applied on a skiff. I've made several models and the lines are really elegant. I'm planning to build a full size version (probably in the range of 14' to 16') in the near future. I've never built a boat so this is totally non commercial, but it's really fascinating and basically I just want to see how it works. I figure I can always modify it to a standard modified V if it doesn't work out as hoped on a smaller vessel. Anyway, so glad I finally found your video. Thank you and best wishes for future success.
Good idea! That design looks very stable for sure. Seem like you get comfort or performance, but here you split the difference beautiful. I've always wanted a boat that can stabilize when needed and destabilize with a flip of a switch.
I am looking for a boat in the mid 40' range from 40 to light 46' but a wide beam I want to do giant tuna fishing what boat do you recommend for that to be dog I'm looking to definitely get out and try doing giant tuna fishing again I did it when I was 16 on my boss's boat And now I want to do it now at the age of 53 please comment back thank you So very much for this video
how come when you molded in the bow thruster tunnel.. you did not create a step for the back side of the bow thruster tunnel.. so its not creating drag..
Walt... You're not the first person that's done this ---- you just exaggerated their real-world designs (which were designs AFTER they found out the shortcomings of their original ones - aka, "YOUR'S")
Kudos for spending money to patent it... but apart from the agressively shaped "hump" in the hull aft of midships I fail to see how this is more than a hybrid between a hunt deep vee forward section and a 1950's wooden powerboat aft section. My dad had a model powerboat from when he was a kid with a vee entry and an inverse vee aft section... the similarities are striking.
Mr Walter i saw your video is uploaded since 2016 but the crd kind of design is already used on speedboats and i see no mention to those speedboats . I saw this design on a M/Y and really attracted my attention , i didn t knew though the efficiency of this hull design
I like your take on things. I have always felt the need to resign the v Hull. My goal is to make a center console for speed and nothing but speed, 1600hp and barely breaking 60mph just isn't acceptable to me
Looks like it has so much drag it looks like the tube i pull people on but it deff works for comfort and stability just seem lot less skiming across the top.it ploughs threw
The less wake a boat makes, the less fuel its using to push itself through the water. This thing is throwing up a HUGE wake. Shannon boat works went out of business in 2018. I wonder if this design was a desperate attempt to save the company or if Schulz just got too full of himself snd took the company down a hole that they couldn’t get out of.
I think this design would cause a lot of cavitation at high speed unless the hull is ventilated. At best the props would be semi cavitating, something the water speedsters have been mastering for 60years or more.
It appears to be a displacement hull at its inherent limit...monohull sailboats share the same stability compared to planing hulls...and the same speed limitations.
Nice work, the hull displaces a lot of water in those nice rooster tails off the sides; that must be part of the smooth ride; looks like they'd be good fun. I'm working on a new boat now with a lot of experimental ideas of my own going into it, not sure how exotic I will go but it's starting to get weird...
This may be only good for semidisplacement boats. The problem is that there are too many shape changes. Water does not like to move - so for high speed boats, the deep vee high deadrise angle for a monohull is the only way to go. One way to reduce pounding in high speed boats is to introduce aeronautical aspects like we are doing now.
@joe jitsu The point of a power boat / sports cruiser is to go fast... which is why you want to go on a plane to minimize friction. The hull displayed here competes with semi-displacement hulls, not planing hulls. Semi-displacement hulls don't suffer the same stability issues as planing ones, so what's the point of his design?
@joe jitsu Nice wall of text. Maybe I wasn't very elaborate, but i think you're missing my point. The old man in the video is spouting a bunch of shit about planing hulls, like they are fundamentally flawed. The planing hull is a well considered trade off in favor of speed. When mentioning friction I'm obviously talking about friction during planing, otherwise the comment makes no sense. If you want to handle waves, you're much better off in displacement hulls, but most boats with planing hulls are designed as recreational vehicles intended to go fast when the weather is good. I'm well aware from personal experience that a small recreational boat with a planing hull is completely useless in even slightly rough weather, but guess what? It's been a problem maybe once or twice in my life since we only use our boat when the weather is nice and the family wants to go boating. The old man is marketing his hull as a competitor to planing hulls, but I'm speculating his hull doesn't provide the same efficiency at higher speeds, which again, is the entire point of planing hulls.
You are not pounding the boat because you are breaking the water tooooo far fore. Your fuel consumption is astronomical with all that wet hull surface.
That hull wastes a lot of fuel due to the centre aft section change of curve and suction and so drag at the back. One cannot better much the old displacement German Torpedo boats with a rounded hull. The British had flat hulls, but in heavy seas the German run head and shoulders above the British designs. Nature is what it is and it is very efficient in its design, there is no natural creature with the lines described in this video. This hull achieves what it says only at the medium speeds between 18 and 28 knots. Below and above that it is an inferior design.
there is nothing in naature that do what any surface boat do!! as a work boat the design so ok!! need a bit more curve deeper in front but that can make problem in following sea at crossing!! but at sea can hold faster speed in big swell!!
Of course displacement hull won't pond. They can't get up and speed. My God, look at the bow spray and how hard engine is working. 3 times of fuel usage?
Was going to make a similar comment. Look at 2:48 and how much spray the boat is casting aside. That is energy used for throwing water aside instead of used for going forward.
Not gonna lie, thought that was Sylvester Stallone narrating till I looked at the description. Is this guy doing an impression or does he legit talk like that.
I knew this guy was full of shit when he said that the deep V was used to get the speed and 99% of planing boats are deep V. Deep v requires huge power and fuel to make them plane, and have no load capacity. Look at planing comercial fishing boats, all nearly flat bottom at the stern. So they are only 1% of planing boats? Bullshit.
I've got to see the consumption rates and ranges now.
I'm designing a small 9 ft Runabout. My boating experience comes from Modern Performance Racing sailboats basically carbon-fiber triangles, the noses are sharpened plum, and they slice right through the wave, which roles right over the top of the boat and out the open transm. It's going to be a wet boat but it'll get you anywhere and I wanted to surf. I've also been surfing my entire life
How you go with your build. I am currently building something similar but 15ft, with a wave pierce bow, and 3 steps hull with a 27deg deadrise. It will be a very wet but very fun boat!
That mid section S shape curvature has been used by Maldivian in their traditional wooden boats called dhoani and bokkura for ages. Which stabilises the boat in the maldivian seas in Indian ocean in-between islands.
Always admired your boats. You have a talent.
The line drawing front and rear views @01:24 made me think of viking ships, drakkar (dragon). Water hasnt changed but how we understand it certainly has.
Am I the only one that sees similarities in concept with the ÖK Hull by Rafnar?
Nobody has yet mentioned that his designs are almost identical to the design used by Striker Yachts. I ran a 44ft Striker for ten years and it was a slow boat, and in moderate seas the hull used to suffer from a phenomena known as “Chine Walking” very scary stuff in a choppy sea! IMO a dreadful idea, the only way to go is a deep-V I currently run a 65’ Viking which is a deep-V design which by its very design makes it a great sea boat!
I've been looking everywhere online for this hull that I heard about somewhere a couple years ago. I typed SHR hull design and SRH and but no luck and was starting to think I just dreamed it then today I saw your thumbnail picture and clicked. To my surprise it is a video by the designer himself!
I'm trying to see if your concept of inverted concave stern section can be applied on a skiff. I've made several models and the lines are really elegant. I'm planning to build a full size version (probably in the range of 14' to 16') in the near future. I've never built a boat so this is totally non commercial, but it's really fascinating and basically I just want to see how it works. I figure I can always modify it to a standard modified V if it doesn't work out as hoped on a smaller vessel. Anyway, so glad I finally found your video. Thank you and best wishes for future success.
7
One guy from England split a mold and put a one foot center tunnel. A cross between a deep V and a catamaran!! It seems to work really well.
you sound like an older and more badass Stallone
Good idea! That design looks very stable for sure. Seem like you get comfort or performance, but here you split the difference beautiful. I've always wanted a boat that can stabilize when needed and destabilize with a flip of a switch.
Fish Finder check out seakeeper. It controlls roll with the flip of a switch
I am looking for a boat in the mid 40' range from 40 to light 46' but a wide beam I want to do giant tuna fishing what boat do you recommend for that to be dog I'm looking to definitely get out and try doing giant tuna fishing again I did it when I was 16 on my boss's boat And now I want to do it now at the age of 53 please comment back thank you So very much for this video
What did he say about the bow entry??? Hollow?
Hollow is a fantasy word for fine. Look up hollow grind and you see the shape he's talking about.
Very interesting! But what about the efficiency of the propeller since the flow seems to be very turbulent at the stern (at least not homogeneous)?
how come when you molded in the bow thruster tunnel.. you did not create a step for the back side of the bow thruster tunnel.. so its not creating drag..
Walt... You're not the first person that's done this ---- you just exaggerated their real-world designs (which were designs AFTER they found out the shortcomings of their original ones - aka, "YOUR'S")
Almost got it right. The mid transition is a drag monster.
It looks like it makes a lot of water splashes (so it moves a lot of water). How do we stand in terms of consumption compared to traditional hulls?
Kudos for spending money to patent it... but apart from the agressively shaped "hump" in the hull aft of midships I fail to see how this is more than a hybrid between a hunt deep vee forward section and a 1950's wooden powerboat aft section. My dad had a model powerboat from when he was a kid with a vee entry and an inverse vee aft section... the similarities are striking.
Mr Walter i saw your video is uploaded since 2016 but the crd kind of design is already used on speedboats and i see no mention to those speedboats . I saw this design on a M/Y and really attracted my attention , i didn t knew though the efficiency of this hull design
I like your take on things. I have always felt the need to resign the v Hull. My goal is to make a center console for speed and nothing but speed, 1600hp and barely breaking 60mph just isn't acceptable to me
Does the silver fleet include sailing vessels?
Looks like it has so much drag it looks like the tube i pull people on but it deff works for comfort and stability just seem lot less skiming across the top.it ploughs threw
I play a boat building game called stormworks. This hull looks interesting.
Just looking at the aft hull I'm a little worried of how much bow steer it would have entering a steep breacking entrance.
One of the clips of the boat crossing a wake looked like it bow steered something fierce!
How does it compare to SWATH hull?
The less wake a boat makes, the less fuel its using to push itself through the water. This thing is throwing up a HUGE wake. Shannon boat works went out of business in 2018. I wonder if this design was a desperate attempt to save the company or if Schulz just got too full of himself snd took the company down a hole that they couldn’t get out of.
I think this design would cause a lot of cavitation at high speed unless the hull is ventilated.
At best the props would be semi cavitating, something the water speedsters have been mastering for 60years or more.
The props seemed well under the water and it was a concave ..It works
It appears to be a displacement hull at its inherent limit...monohull sailboats share the same stability compared to planing hulls...and the same speed limitations.
Where can I see one of these boats?
Great invention!
Nice work, the hull displaces a lot of water in those nice rooster tails off the sides; that must be part of the smooth ride; looks like they'd be good fun.
I'm working on a new boat now with a lot of experimental ideas of my own going into it, not sure how exotic I will go but it's starting to get weird...
This may be only good for semidisplacement boats. The problem is that there are too many shape changes. Water does not like to move - so for high speed boats, the deep vee high deadrise angle for a monohull is the only way to go. One way to reduce pounding in high speed boats is to introduce aeronautical aspects like we are doing now.
Like doing it now where buddy?Where is your work to show for it,put up a video and proof!
The corvette 32 /320 hull is very similar. The aft part is not concave, more like flat, but otherwise looks very much the same. Them patents.....
the French Arvor boats are similar in design.
Molecular water tunnel 😂😂
LMFAOROTF
Hey, but it sounds smart.
...with synaptical inter-dimensional nuclear bonding ;)
@Artur Petrovici
It’s all good until the excrement impales upon the rotational atmospheric propulsion device.
Well he's not wrong, they are molecules of water making a tunnel
Hydrofoil works in the rough conditions much better than any of these hulls and also much faster and energy efficient.
those boats r just plowing
Well you are so right my thoughts exactly slow but looks smooth though
Walkertongdee smooth maybe but inefficient as hell!
Agreed
@joe jitsu The point of a power boat / sports cruiser is to go fast... which is why you want to go on a plane to minimize friction. The hull displayed here competes with semi-displacement hulls, not planing hulls. Semi-displacement hulls don't suffer the same stability issues as planing ones, so what's the point of his design?
@joe jitsu Nice wall of text. Maybe I wasn't very elaborate, but i think you're missing my point. The old man in the video is spouting a bunch of shit about planing hulls, like they are fundamentally flawed. The planing hull is a well considered trade off in favor of speed. When mentioning friction I'm obviously talking about friction during planing, otherwise the comment makes no sense. If you want to handle waves, you're much better off in displacement hulls, but most boats with planing hulls are designed as recreational vehicles intended to go fast when the weather is good. I'm well aware from personal experience that a small recreational boat with a planing hull is completely useless in even slightly rough weather, but guess what? It's been a problem maybe once or twice in my life since we only use our boat when the weather is nice and the family wants to go boating.
The old man is marketing his hull as a competitor to planing hulls, but I'm speculating his hull doesn't provide the same efficiency at higher speeds, which again, is the entire point of planing hulls.
You are not pounding the boat because you are breaking the water tooooo far fore. Your fuel consumption is astronomical with all that wet hull surface.
Looks like the old Rescue Minor ala atkin & co or robb white
Yup- the big idea is a rescue minor. Done been done, and great to go 15 knots. Over 30- nuttin beats the good olde Ray Hunt design variants.
That last boat with the upper level better be very wide because it’s going to be very top heavy.
That hull wastes a lot of fuel due to the centre aft section change of curve and suction and so drag at the back. One cannot better much the old displacement German Torpedo boats with a rounded hull. The British had flat hulls, but in heavy seas the German run head and shoulders above the British designs. Nature is what it is and it is very efficient in its design, there is no natural creature with the lines described in this video. This hull achieves what it says only at the medium speeds between 18 and 28 knots. Below and above that it is an inferior design.
there is nothing in naature that do what any surface boat do!! as a work boat the design so ok!! need a bit more curve deeper in front but that can make problem in following sea at crossing!! but at sea can hold faster speed in big swell!!
Yeah, but it's going to be draging....it's okay for house boat because it has a big displacement. but for a cruiser? Fuel consumptions will be double.
Of course displacement hull won't pond. They can't get up and speed. My God, look at the bow spray and how hard engine is working. 3 times of fuel usage?
Was going to make a similar comment. Look at 2:48 and how much spray the boat is casting aside. That is energy used for throwing water aside instead of used for going forward.
Yep, no such thing as a free lunch. You gain somewhere and lose somewhere else.
Wow.
You can see why this hull design is a bad idea @ 2:45 as boat leaning outward or away from the turn.
That's a regular hull design you have there @ 2:48 is where the Shannon comes into the picture.
Genius...
Tell me well that work on a 316ft ship
Thank you for sharing your concept design! Now I see Rafnar is copying your concept but modified
The new snow plow design really kills gas milage ill bet hahahaha
Who knew Larry King had a second job?
Not gonna lie, thought that was Sylvester Stallone narrating till I looked at the description. Is this guy doing an impression or does he legit talk like that.
He's from Brooklyn. I was born there!!
....sure!
Pounding is planing.
sylvester stallone is that u?>
Bulldozers on the water?
I knew this guy was full of shit when he said that the deep V was used to get the speed and 99% of planing boats are deep V. Deep v requires huge power and fuel to make them plane, and have no load capacity. Look at planing comercial fishing boats, all nearly flat bottom at the stern. So they are only 1% of planing boats? Bullshit.
john rambo ok
looks like a duck. nice
Ya side to side motion,,,those hulls look like they sway side to side. Pass.
Rambo
Very nice.. Proving once again that aeronautics/hydrodynamics is an art, not a science.
i am sure that this boat is not capable for Aegean waves (too much frequency and steep ).
Also, it has tendency to roll fast
so its basically a shitty poorly designed tri hull