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Old 29 May 2017, 18:29   #1
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Rails for removable tubes?

Hello everyone. Long time lurker, reader and enthusiast. I have a 22 foot Rendova, rhib. great boat. Coming across the bay from Sausalito to SF piers, I heard a very loud snap. I was doing 12 knots. Both of the sponson/tube retainer straps popped. SO, I limped to the nearest pier. (which happened to be the Ramp, which was having a carnival party. Great place to break down. haha.)

Seems the d-shaped rail, that the sponson/tube slides into, and then attaches to the hull itself, has broken. 3 pieces. that was the loud snap. the straps were a secondary casualty. Is this the "collar"?
question is, it's a straight forward repair. but what is the proper nomenclature for the rail? Any leads on where to buy one would be great. I guess I am asking if it's a universal part? I checked defender, did a cursory google search. nothing yet. thank you, william.
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Old 29 May 2017, 21:42   #2
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How would I go about moving this to different, more general sub forum? Also, should probably change the title?
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Old 30 May 2017, 00:37   #3
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Hi, sounds like a pretty good breakdown as they go

The collar is another term that some people use for the tubes, apart from that I'd say you've got the terminology OK.

I've moved your post into the general "RIBs and ribbing section" for you.

Good luck with the repair.
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Old 30 May 2017, 09:06   #4
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Luff rope rails

Henshaw Inflatables have two sections of aluminium rail used for sliding a bolt rope into. Depends on the diameter of the bolt ropes fitted to the tube though. Available in 5 metre lengths.
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Old 30 May 2017, 10:32   #5
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Christopher, thank you. Extrusion is the word I'm looking for. I am now trying to research which rhibs have these extrusions. This one on the Rendova looks to be PVC or similar type of plastic.
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Old 30 May 2017, 23:04   #6
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Pvc Bolt rope extrusion failure

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Old 30 May 2017, 23:07   #7
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Failure of Extrusion, limp mode home.

SO, I got it all apart, tubes came off with no issue. used dish soap. Going to continue looking for a replacement extrusion to hold the tubes in place. searched all over google for stock pvc extrusions. Going to double up on straps forward of the helm. you can see the remnants of the port side strap hanging there. when that failed, the extrusion failed.
12 knots in pretty confused 5 foot seas (5 feet in sf bay=50 real world. haha.) INSIDE of the Golden Gate, not a smart place to be without a sorted boat. lesson learned.
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Old 30 May 2017, 23:17   #8
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Old 30 May 2017, 23:19   #9
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Old 30 May 2017, 23:21   #10
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