Fortunat1 wrote:

I still don't see how I would weld the baffles in place before the tank is
closed up. This tank would be about 48" by 24" by 5" The top has a bevel at
the back to conform to an airfoil shape. I reckon I'd need two baffles
(strictly eyeball engineering here) to minimize sloshing from side to side.
maybe just one. If I were to make the tank out of a single wrapped piece
with ends stitched on afterwards, how would i go about welding the baffles
in place? Put the ends on last? Presumably, the baffles would only need to
be tacked as opposed to a continuous seam all the way around..

Yes, you would wrap the sheet to form the overall tank shape, weld in a
baffle or three working from the open ends and then weld on the ends to
close things up.

Matt