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Old 16 March 2005, 07:09   #41
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John. I do realise the hull shapes, spray rails, keel shape and arrangement etc are different per type of boat and the angles of bow/stern etc also.

But what I was pointing out was that you could go on for years with photos saying hey! this looks like...

without a picture from exactly the same angles either of the boats can look slightly different enough to be the same or not the same.

I dont have a RIB and the only ones I have been on are RNLI Atlantic 75s & a RNLI Valiant DR490, but I've worked on Avon Seariders. appart from that its SIBs & Hardboats
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Old 16 March 2005, 07:09   #42
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Quote:
Originally Posted by John Kennett
I quite often find myself looking at things like spray rails and wonder
John

You need to get out more!!

Mark
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Old 16 March 2005, 07:13   #43
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Quote:
Originally Posted by MarkWildey
You need to get out more!!
I did say "quite" often.

But you're probably right

John
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Old 16 March 2005, 07:22   #44
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How do reverse chimes work?

Ive been in a gemini that had them and it seemed to grip more in the corners than my avon that tends 2 slide slightly.
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Old 16 March 2005, 07:30   #45
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Quote:
Originally Posted by John Kennett
Although superficially similar (reverse chine and one spray rail) I think that the differences would be very apparent if the two boats were put side by side.....

Feckin' Hell. JK.... you wanna join the Diplomatic Corps you do... What Ol' Lanky meant was.... they look nuffin' like.... and your's needs a good wash.....
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Old 16 March 2005, 08:09   #46
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Quote:
Originally Posted by King_C
How do reverse chimes work?
First of all, it's chiNe not chiMe

They divert the water downwards and away from the boat, increasing lift and stability. It's quite a common feature on planing boats, but the size and angle of the chine varies. The bigger the chine, and the greater the reverse angle, the greater the effect.

The Gemini, as you noticed, has a very pronounced reverse chine. It hardly banks at all in corners, which can make holding on a bit of a challenge!

John
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Old 16 March 2005, 08:19   #47
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Yeh sorry that was a typo.

Does a bigger more reversed chine tend to mean it will slam more in big seas? As its a flatter edge to the water?
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Old 16 March 2005, 08:24   #48
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It will tend to, although you're not likely to notice it unless the chines are much bigger than normal.

As a rule the more flat (or reverse angled) surface there is on a hull, whether it is in spray rails or chine, the more lift you'll get but the harder the ride will be.

John
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Old 16 March 2005, 08:27   #49
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Quote:
Originally Posted by Jono
Feckin' Hell. JK.... you wanna join the Diplomatic Corps you do... What Ol' Lanky meant was.... they look nuffin' like.... and your's needs a good wash.....
I only said it looked similar not the same & given the different angle of the photo I still think it dose! But I do not think for a moment it is a copy of a Osprey
You saying my boat needs a wash?
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Old 16 March 2005, 08:30   #50
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Quote:
Originally Posted by John Kennett
The Gemini, as you noticed, has a very pronounced reverse chine.
John

JK

I suppose that is the 6 mtr version only ??

paul
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