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Old 16 June 2001, 19:21   #1
dja
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buoyancy bag

Those neat bags the rnli have on their a-frames in case of capsize. Is that something I get from my builder or is there a better source?

What do they cost? Are they easy to fit?

TIA

D
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Old 17 June 2001, 10:21   #2
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I have one on my Ribtec 6.5 and it was fitted by Ribtec I think you are looking at about 3000, hope never to need it.
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Old 19 June 2001, 05:35   #3
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D,

I don't think its just a simple job as attaching a bag and inflation device to your A frame. The RNLI / Commercial RIBS that use self righting gear have specially designed and engineered A Frames to cope with the stresses put upon the A Frame when the bag inflates. If you did manage to do something on your current A frame the risk would be that it would pull out of the boat or deform the first time you used it in anger!

Alan
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Old 19 June 2001, 10:47   #4
dja
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hmmmm.....

ok, cheers folks, guess I need a conversation with my builder.

D
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Old 25 June 2001, 06:04   #5
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Self righting bags together with the associated CO2 system can be manufactured and supplied to suit say a 7 metre RIB for around 1000.The bag is normally made in Hypalon and has eyeleted strips attached to it so that the bag can be laced to the top of the A frame.Velcro fastened flaps contain the bag in a neat package until activated.The installation is quite simple,the bag can be tested by inflating with a foot pump every now and again, and the CO2 cylinder can be weighed once a year to check the fill capacity.

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Old 26 June 2001, 02:48   #6
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Hi Chris -- thanks for your input!

Can you install a self righting bag on astandard A frame, or would it need to be purpose built for the job?

John

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Old 20 July 2001, 03:48   #7
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John.The bags normally have to be purpose built to suit the A frame. The eyeleted strips that are bonded to the underside of the frame have to be spaced correctly or they will not match the bars on the top of the frame. A simple plan view of the top of the frame showing the distances between the bars, not forgetting the diameter of the bars should suffice
Chris
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