Those baffles also serve as structural integrity support. Realize that as you go up in altitude pressure goes down, and descending causes the opposite. I have seen a centerline tank on the Eagle malfunction and not vent. It basically imploded on the plane. Pretty sure it got tossed.Yes, I would have guessed they did not have any because it would complicate the manufacturing process considerably and being steel, they couple be much stronger that AL or paper or plastic tanks. But them's baffles, all right.
And besides, they are not supposed to be yankin' and bankin' much with those tanks in place., But them's baffles, all right.
Even my Ercoupe's 8 gal wing tanks have baffles.
We could do 660+ kts with one on the centerline and pull 9 Gs so they are strong. It was eye opening to see it.