I was out looking at my boat and noticed some cracks in the hull. They appear to be the "hairline" variety, but one of them I can feel with my fingernail when I scratch it. So after some searching on these forums, I went and took a closer look. Someone tell me how much trouble I am in and what my next move should be.
It certainly looks like the damage was done by an impact. There are two sets of cracks, making roughly a football shape. The cracks never meet up. When I push in the middle of the cracks the hull flexes very slightly and a "crunchy sound" is heard, I am guessing from the foam. If I push outside of the football shaped area, the hull does not flex at all and makes no sound. The cracks are on the passenger side, almost directly under the passenger seat. I have not drilled holes anywhere to check for water, but I imagine that there is a great amount of pressure where the cracks are and water was probably forced in. The boat has not been in the water since 2003, and has been stored in a heated garage with the bow up and the plug out. The gelcoat does not apear to be delaminating or chipping, the only outward sign of damage is the cracks.
I took pictures, but hairline cracks don't show up well. I put my hand in the middle of the football shaped area for size reference. The difficult to see cracks are on the right side of the strake my thumb is resting on. They mirror the cracks near my pinky finger.
Pics of the hull cracks:
Link to pics of the rest of the boat, if anyone wants to see a pretty clean 1974 Gulfstream. The boat has belonged to my parents since 1982. I took ownership 2 weeks ago.