- I think Callout 1 points to stringers.
- Does Callout 2 point to stringers?
[Moderator's note: The image in Figure 1 has been reoriented to improve the intended purpose of the image as an illustration.]
None of the objects that can be seen and indicated by Callout 1 or Callout 2 are hull stringers. Callout 2 is pointing to something unseen on the starboard side of the hull. It is thus difficult to know to what other element Callout 2 is pointing.rnln wrote:
- I think Callout 1 points to stringers.
- Does Callout 2 point to stringers?
padrefigure wrote:In my 1984 Outrage 22, the circles are present. I am not sure what they are--perhaps injection points for foam that are glassed over after set up? (Not likely as they seem to have gel coat in place and are recessed into the surface of the liner.) Or just rejection pin points for the liner mold? It is a mystery to me.
The foam is not injected. A liquid compound is poured into the space between the hull and liner. A chemical reaction very rapidly turns the liquid into an expanding foam. To insure venting of air, a number of sprue holes are placed in the liner mold to allow the expanding foam to push out any entrapped air. However, the sprue holes are usually at the bow or near the top of the gunwales. When the joining of the hulls is made, the boat is usually oriented with the bow higher than the stern, and a large sprue hole is located at the bow peak.Vance's Revenge wrote:...I was thinking [the four circles in the aft well] were injection points for the foam, as well.
jimh wrote:The foam is not injected. A liquid compound is poured into the space between the hull and liner. A chemical reaction very rapidly turns the liquid into an expanding foam. To insure venting of air, a number of sprue holes are placed in the liner mold to allow the expanding foam to push out any entrapped air. However, the sprue holes are usually at the bow or near the top of the gunwales. When the joining of the hulls is made, the boat is usually oriented with the bow higher than the stern, and a large sprue hole is located at the bow peak.Vance's Revenge wrote:...I was thinking [the four circles in the aft well] were injection points for the foam, as well.
The circular sprue holes would typically be covered with a circular disk adhered in place, or in some instance just left with the foam faired to a smooth surface and sealed with some resin.