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Old 08 March 2013, 04:24   #1
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Airhull

Hello RIB fans!!

Have you seen the Airhull RIB with the innovative 2-step, dimpled hull?



Check out this beautiful boat, the Airhull 25 S, which is high rated from the greek magazines for its incredible performance, top construction quality, unbelievable performance in high seas and low fuel consumption, due to the use of Dimpled Hull Technology.

.: AirHull :.
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Old 08 March 2013, 04:34   #2
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Think it would be very interesting to see how this hull would be performing without the dimples. Are there dimples on the planning pad just before transom?
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Old 08 March 2013, 04:39   #3
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In this photo you can see the dimpled hull area.

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Old 08 March 2013, 04:51   #4
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In this photo you can see the dimpled hull area.
As per the golf ball concept....interesting
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Old 08 March 2013, 05:35   #5
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Att high speed those parts of the hull in the water, are those not having dimples....exept maybe a small area before the first step. On the other hand, with well designed spray rails
most of the whisker spray is not touching the dimpled area so how much are their impact anyway?

I know its not that simple, and it is positive that new innovations are made but really would like to understand why this is working, if it is.
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Old 08 March 2013, 09:07   #6
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Looks as though they will provide nice footholds for algae etc?
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Old 08 March 2013, 10:31   #7
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Idea is clever, but isn't the bit that's going to be in the water when it's planing all smooth - so am I either missing something or do the dimples only work in displacement mode?

Scaling the idea down I do remember that the last thing you wanted to do was polish an optimist dinghy. Sanding it with somethiong like 800 or 1200 grade wet'n'dry gave you a tad more speed through the water, so the concept isnlt as crazy as it sounds......
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Old 08 March 2013, 11:25   #8
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Att high speed those parts of the hull in the water, are those not having dimples....exept maybe a small area before the first step. On the other hand, with well designed spray rails
most of the whisker spray is not touching the dimpled area so how much are their impact anyway?

I know its not that simple, and it is positive that new innovations are made but really would like to understand why this is working, if it is.
I've made a trip on this boat and the way that the boat responds when travelling in heavy seas, is really outstanding. It seems that the dimples provide this smoother ride, compared to other similar boats.

Keep in mind that in heavy seas the wetted surface of the hull becomes much larger when you hit the waves, compared to the water surface when travelling in calm-flat water sea.

The tests in the magazines confirm the exceptional performance of the boat and the low fuel consumption.
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Old 08 March 2013, 14:16   #9
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Keep in mind that in heavy seas the wetted surface of the hull becomes much larger when you hit the waves, compared to the water surface when travelling in calm-flat water sea.
This one I buy. Already the steps improve the drag, but If the dimples further improves it, that is an achievement. This boat seams to have the spray rails in same position after each step, often the position changes after each step on stepped hulls.

Its a very interesting science, just read a test of a Beneteau Baracuda 9 with "air step", this test team was not that impressed about the "air" feature and its benefits.
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Old 09 March 2013, 04:25   #10
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This is the Airhull 25 Cabin version, which is expected to be launched in a few weeks time.

Real beauty, isn't she?

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Old 11 March 2013, 16:03   #11
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the rounded bottom aft and number of spray rails looks a little like adams work.
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Old 13 March 2013, 12:18   #12
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the rounded bottom aft and number of spray rails looks a little like adams work.
The boat is 100% designed and constructed in Greece.
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Old 13 March 2013, 13:16   #13
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Surely you should have trade membership as you are clearly involved in marketing this vessel in an underhand way.

Last forum where I saw this tactic, the marketing person had to come cap in hand and apologise to all for trying to deceive.
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Old 13 March 2013, 13:43   #14
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Surely you should have trade membership as you are clearly involved in marketing this vessel in an underhand way.

Last forum where I saw this tactic, the marketing person had to come cap in hand and apologise to all for trying to deceive.
What makes you so sure that I am involved in marketing this vessel? You cannot blame someone my friend for anything, if you are not sure about it.
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Old 13 March 2013, 14:06   #15
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Cos all your posts are classic 'forum marketing' style posts.

New user, pushing smashing product, with same country of origin as product, only posting about the one product are just some of the tell tail signs.

Are you saying that you absolutely have no involvement in this product? Happy to stand corrected, but if I was a betting man, I'd wager a bet that you were in some way connected with this product.
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Old 13 March 2013, 14:10   #16
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I am sorry, but I don't understand your problem. Even if I was involved in this product, why would that be bad?
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Old 13 March 2013, 14:15   #17
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Because forum marketing is deceitful and probably against forum rules unless trade membership.

So, are you involved in this product?
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Old 13 March 2013, 14:20   #18
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Anyway, I am NOT making any forum marketing, I just found the boat different from all the others and I wanted to share it.

I never thought that someone would be offended.
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Old 13 March 2013, 14:31   #19
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Anyway, I am NOT making any forum marketing, I just found the boat different from all the others and I wanted to share it.

I never thought that someone would be offended.
Nothing wrong with that if what you say is true

The weather in sunny-less G.B. is cold and crappy to say the least that's probably why some peeps are a bit grumpy

But I bet that the weather is a lot brighter and warmer over in sunny Greece Have a nice day .
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Old 13 March 2013, 14:33   #20
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Well if you were posting from Uk or on a UK forum and had any relationship with the product at all then promoting a product without it being clearly marked as marketing material would be illegal. We have what is known as the CAP Code that our advertising standards authority can act upon.

There have been a number of high profile sponsored tweets that have fallen foul of this resulting in some very well known names having their very expensive marketing campaigns being pulled.

However, as you have said that you have no connection with this product and are outside the UK, then there should not be a problem should there. However, if you did have any connection with this product, if it was me, I would do the right thing and make your relationship to the product clear in your signature and see whether trade membership rules apply.
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