Bass Relief- A Seafari 25 rehab

[FishStretcher]

Originally Posted by cdavisdb

Am I interpreting this right? There was no tank deck? The bottom of your tanks rested on the keelson?

Connor

The tanks I just pulled rested on the "stringers" that are about 12" outboard of the keelson, (~24" center-center?) and rather higher up. Not on the larger stringers that lie outboard of those, perhaps 18-20" (36-40" centers) outboard of the keelson.

Yes, there was no tank deck. Just some strips of rubber under aluminum tanks.

For a plastic tank, I would make a support/tank deck. I want to try some of the Santor Loric SF core material I just saw at that composites show. I hope to get the tank deeper in the hull with a deeper V bottom on the tank. And support it with sandwich core off the inner stringers, with a pultruded fiberglass box section to stand it off the keelson, with a pile of 3M 5200 in the joint to allow that joint to flex. The joints from the stringers to the tank deck/support would also flex with 3M 5200, but with less gap. Any flexion needed from stringer to stringer could be accommodated by the narrow sandwich core and longer span and the plastic tank should be fine with any deformation that happened to the hull in that area. I would think.