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Old 10 October 2019, 15:48   #1
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rib ladders

thoughts and advice please on fitting a ladder on a 5.5 Ribcraft rib
we are a Scuba diving club with some of our members ageing and needing all the help they can get,getting in the water not a real problem but quite a lot of strength is needed in getting out.
The plan i believe is to mount a ladder to a single tube A frame
I remember a few years ago a jockey seat was ripped away from the floor of a rib because of poor fitting.would not want a repeat
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Old 10 October 2019, 17:02   #2
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Have a word with Plymouth Sound dive club, they have ladders on their A frames.

https://www.plymouthdivers.org.uk/membership/
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Old 11 October 2019, 04:31   #3
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pics of the one i had
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Old 11 October 2019, 04:32   #4
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Quote:
Originally Posted by treerat View Post
Have a word with Plymouth Sound dive club, they have ladders on their A frames.

https://www.plymouthdivers.org.uk/membership/
Typhoon International have a RIB Ladder . We have bought and fitted a few
Easy to install and put away when not in use as it folds into a long pouch
see photos
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Old 11 October 2019, 07:31   #5
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rib ladders

@Jeff - was this off the shelf or custom made?
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Old 11 October 2019, 07:46   #6
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@Jeff - was this off the shelf or custom made?
It was custom made monkey I couldn't find anything off the shelf that would give me the ability to hang off the A frame as well as use the A farme to haul myself up with diving gear on of course that was age related too
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Old 11 October 2019, 08:06   #7
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Originally Posted by jeffstevens763@g View Post
It was custom made monkey I couldn't find anything off the shelf that would give me the ability to hang off the A frame as well as use the A farme to haul myself up with diving gear on of course that was age related too
Looks very effective, do you have a close up showing the A-frame mount?
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Old 11 October 2019, 08:35   #8
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Quote:
Originally Posted by stul View Post
thoughts and advice please on fitting a ladder on a 5.5 Ribcraft rib
we are a Scuba diving club with some of our members ageing and needing all the help they can get,getting in the water not a real problem but quite a lot of strength is needed in getting out.
The plan i believe is to mount a ladder to a single tube A frame
I remember a few years ago a jockey seat was ripped away from the floor of a rib because of poor fitting.would not want a repeat
There are a few over the tube options:
https://www.armstrongnautical.com/ar...rib-ladders-2/
https://www.batsystem.se/en/products/rib500/
https://www.osculati.com/en/11628-m-...r-for-dinghies
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Old 11 October 2019, 08:43   #9
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about as close as ive got monkey if your going single A frame it's much easier to fab.
one thing i did is to have the steps staggered in order i would climb for different people i would have straight steps so they can choose just a thought
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Old 11 October 2019, 08:48   #10
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mine was based on this for info

just my preference i like to hold on when im stood upright getting my leg over the tube it's like getting onto a roof it's better if the ladder extends past far enough for you to step off & on especially when the old bones say no
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Old 11 October 2019, 14:40   #11
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Thank s for the pictures interesting, if your A frame is double tube it gives you a stronger base fix
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Old 11 October 2019, 14:44   #12
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Quote:
Originally Posted by Andre View Post
Typhoon International have a RIB Ladder . We have bought and fitted a few
Easy to install and put away when not in use as it folds into a long pouch
see photos
Wth rope style ladder
I would have thought these swing under the boat when climbing in ?
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Old 11 October 2019, 15:38   #13
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Quote:
Originally Posted by stul View Post
Thank s for the pictures interesting, if your A frame is double tube it gives you a stronger base fix
If your having one fabled up you could use the A frame base bolts and have the ladder top run over the tube to the hinge point my tube actually stopped the ladder from going under the boat when climbing
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Old 21 October 2019, 09:20   #14
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I have a removable one for sale if you would like - its a ST Croix, 3 step - very strong and easy to clip to the A frame or as I did, to a large U bolt on the inside of the transom. It folds in half and will fir (on my Cobra) between the A frame and tubes when not in use. Its not as good as a bespoke fin ladder, welded to the A frame of course but that was never a choice for me as it can only realistically be done before fabrication and fit out - access and internal cables would be an issue.... and not cheap !
This is a kit-off before climbing aboard approach

... IME, rope ladders simply swing under the hull as you try to climb up them.

Photos attached - and link to the websites
https://www.defender.com/product.jsp?id=97882

https://shop.inflatableboatparts.com...g-ladder-103h/

100 posted UK mainland

Jeff



... sorry the photos are sideways ,,, not sure why !
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Old 21 October 2019, 10:15   #15
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Quote:
Originally Posted by Jeff View Post
I have a removable one for sale if you would like - its a ST Croix, 3 step - very strong and easy to clip to the A frame or as I did, to a large U bolt on the inside of the transom. It folds in half and will fir (on my Cobra) between the A frame and tubes when not in use. Its not as good as a bespoke fin ladder, welded to the A frame of course but that was never a choice for me as it can only realistically be done before fabrication and fit out - access and internal cables would be an issue.... and not cheap !
This is a kit-off before climbing aboard approach

... IME, rope ladders simply swing under the hull as you try to climb up them.

Photos attached - and link to the websites
https://www.defender.com/product.jsp?id=97882

https://shop.inflatableboatparts.com...g-ladder-103h/

100 posted UK mainland

Jeff



... sorry the photos are sideways ,,, not sure why !
I'll take it Jeff, assuming the OP is not interested?
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Old 22 October 2019, 04:04   #16
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Quote:
Originally Posted by _monkey View Post
I'll take it Jeff, assuming the OP is not interested?
Now sold - thanks 'Monkey' for the prompt payment :-)
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