Hello All,

float bags for SOF are mentioned few inches down the scroll bar, so I would like to add an idea.

since a foldable is going thru my mind these days I thought about using empty plastic bottles to fill the volume of the boat.

I thought of putting bunjy cords on the ribs, in a way that they would hold plastic bottles. it's possible to use different sizes of bottles to fill different forms of volumes. It's also usefull to make a primitive "mold" or just "stoppers" so the bottles would seat firm under the bunjy cord.

I realise bottles will not fill the volume so efficiently as a single float bag or a see sock, but bottles are cheap (free) & common, & sometimes they come in a square/rectangular form that fills the volume more efficiently than the round bottles. (they are still less efficient than the bags).

bottles are also stronger/more durable than any float bag & few of them can be glued together with contact cement.

a disadvantage is that they don't collaps (or perhaps they do ?)

In a foldable I would place them on the ribs before I put the skin on.

well..... I think I would.
This is just an idea...
take it from here.

I don't intend to drink the content of the bottles I'll use, there are just too many. I intend to pick them from a recycling dumpster - I wonder if it's considered a theft.

build less, paddle more,

Erez