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Old 23 August 2006, 18:42   #1
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A frames

I know this has probably been done to death somewhere, but 15 minutes of searching has done my head in!!

Where can I source a high quality s/s single tube "A" frame like the ones Humber use? Are thre any disadvantages in using single tube to twin?

Who does good twin tube ones?
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Old 23 August 2006, 18:50   #2
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Originally Posted by Windchill
Where can I source a high quality s/s single tube "A" frame like the ones Humber use?
Humber? I think they'll sell them separately, they certainly sell seats separately because I've just ordered one
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Old 23 August 2006, 18:56   #3
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Hi, new rib???

We have a few produced, like humbers. 316 stainless brushed finish.

Ill post some pics when i get to my other pc or have a look here

http://rib.net/forum/showthread.php?...8&page=4&pp=10

http://rib.net/forum/showthread.php?...ghlight=frames

2006 5.7m Humber Destroyer - Mercury 80hp Four Stroke - £13,495

See y soon

Jono
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Old 23 August 2006, 18:57   #4
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Quote:
Originally Posted by BogMonster
Humber? I think they'll sell them separately, they certainly sell seats separately because I've just ordered one
only to fit on Humbers i think
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Old 23 August 2006, 19:44   #5
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If you are looking for a single A-Frame, check out ZEPPELIN (French RIB maker)

I live in Ireland, and got one delivered for 300euro (thats about 210 sterling) which is a good price for an A-Frame. The width is adjustable and it comes with nav lights and a mounting plate on top

Brilliant value IMHO! See attatched picture (I miss my RIB!)
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Old 23 August 2006, 20:12   #6
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A frame purpose

I am most interested in what most folks believe the intent/purpose of an A frame is as I am in the process of designing one.
1. Fashionable decorative bracket.
2. Storage bracket/platform eg. roof rack for lifejackets etc.
3. Structural element for the vessel for towing, etc.
4. Bracket to mount stuff on.
5. Any other purpose
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Old 23 August 2006, 21:43   #7
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Quote:
Originally Posted by Limey Linda
I am most interested in what most folks believe the intent/purpose of an A frame is as I am in the process of designing one.
1. Fashionable decorative bracket.
2. Storage bracket/platform eg. roof rack for lifejackets etc.
3. Structural element for the vessel for towing, etc.
4. Bracket to mount stuff on.
5. Any other purpose
For me - bracket to mount VHF aerial at a reasonable height, and nav lights. I guess a bit of bling on the blunt end looks nice too
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Old 24 August 2006, 08:42   #8
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Quote:
Originally Posted by Limey Linda
I am most interested in what most folks believe the intent/purpose of an A frame is as I am in the process of designing one.
1. Fashionable decorative bracket.
2. Storage bracket/platform eg. roof rack for lifejackets etc.
3. Structural element for the vessel for towing, etc.
4. Bracket to mount stuff on.
5. Any other purpose
Surely if you are designing one - it is to meet your needs rather than everyone elses?

I believe the original concept was as a support for nav lights, ariels etc. Now cosmetic too, generally most people advise against towing with one - so if that is your plan not only do you need to beef it up you need to mount it properly.

The other "serious" application they have is for self righting bags.

You missed handhold whilst peeing over the side - from your list.
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Old 24 August 2006, 12:23   #9
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Quote:
Originally Posted by Polwart
..You missed handhold whilst peeing over the side - from your list.
The most important of all.
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Old 24 August 2006, 17:13   #10
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Well, if you have two engines, you can lean against them and pee between them, I find that the easiest way
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