Floatation Foam

Can I swap out the old, stock styrofoam floatation that is strapped in via glass under the seats to newer stuff like the DOW styro-like, blue logs that dock builders use - without affecting class rules ? Thx

Comments

Blue Grass, The original layout is about 7.

Blue Grass, The original layout is about 7.5" thick ( 2 pcs of 3.75" foam stacked ) x about 12" wide and about 4.5' long.... <---------- there are (2) sets of these that make up one side of the underdeck. Would you need (2) of the 10x20x8 ? for both sides of the deck ? Or, did you cut the Dow material in half? If so, with what ? It seems that (1) pc of the Dow stuff, if cut in half, lengthwise, would 'just' get the entire job done. The overall dimnesions of the DOW foam would be smaller than the original footprint - but I guess it all boils down to buoyancy. Are you sure your spec is accurate ? Thanks !

One more quick question : How did yo mount the foam back in p

One more quick question : How did yo mount the foam back in place ? Did you use fiberglass straps like the original set-up ? Re-glassing straps seems easier if boat were upside down - which is not an option.

Your description gave me an idea.

Your description gave me an idea. I will get the DOW stuff, cut it to dry fit - use your prop up idea - then I will lay up the correct lengths of glass roving "straps" - several layers of light roving fiberglass. Then put these straps on a flat pc of plastic covered plywood. Wet the glass out - LEAVING each end of the straps, 3" or so on each side, UN-WETTED. Let this kick and harden. Then, with DOW foam in place, tape the hard, flat straps in place and resin/wet out the unresined glass ends in place. What do you think ?

Consult Flyingscot.

Consult Flyingscot.com. They can supply a kit for securing flotation which includes seat belt type nylon webbing---a stronger set up.

  The FS supplied seat

 

The FS supplied seat webbing kit is for a fore and aft securing of the foam blocks.  I need to secure the foam the way it was done originally - fiberglass straps that run starb to port ( or vice versa ).

 

 

Put a strip of wax paper

Put a strip of wax paper between the foam and the glass strip to keep it from dissolving the foam.

  Wax paper good advice.  I

 

Wax paper good advice.  I was going to use plastic but wax paper just as easy. 

There is a lot of prep before I actually glass foam in.  The way I see it:

- cut foam to fit.

- cut pcs of scrap wood to hold all the pcs of foam in place ( I'll be working with boat right side up not upside down )

- pre-glass several pcs of long narrow glass on a veneer table - leaving the ends un glassed

- sand areas to be glassed - tape wax paper in place.

- let resin get more tacky than usual for the upside downwet out - and glass fiberglass strips in.

Sound about right ?

 

I think Flying Scot

I think Flying Scot determined that the port to starboard fiberglass straps were not sufficiently sturdy in rough conditions---the foam came loose. So they advised adding longitudinal straps to the port to starboard ones.

I think Flying Scot

I think Flying Scot determined that the port to starboard fiberglass straps were not sufficiently sturdy in rough conditions---the foam came loose. So they advised adding longitudinal straps to the port to starboard ones.