Forum: RIBs & ribbing
18 March 2010, 22:19
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Replies: 12
Views: 3,794
The Force 4 had various forms of one way valve...
The Force 4 had various forms of one way valve instead, the best of which was a simple neoprene and aluminium flap over the hole.
The later ball valve design only needed a small piece of seaweed...
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Forum: RIBs & ribbing
12 March 2010, 19:57
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Replies: 12
Views: 3,794
They look good to me, and appear good value.
...
They look good to me, and appear good value.
Although they are very simple to make by laying up glassfibre around a drainpipe(inside for a neater outside finish) and gluing up a tube out of a...
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Forum: RIBs & ribbing
12 March 2010, 19:43
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Replies: 12
Views: 3,794
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