What purpose do sponsoons serve?
They are like sideweels but for ships
They increase the ships beam, thereby increasing the stability.
Somewhere in the past they changed the rules for stability, and some ships where on the edge of those rules, then you saw a lot of those ships adding sponsoons. as the beam is a major factor in the calculations for that, it’s b³ in there somewhere.
Nowadays you don’t see them much anymore. Except for heavy lift ships, they are the most likely to carry them.
Some examples:
Princess of the Scandinavia
Bougaz
(I don’t know)
Grane R
Happy D type from Biglift, A widened with sponsoons Heavy Lift type ships sharing the same design as the D-type from Spliethoff (same company)
And apparently you got them for Dingies too!
*nope I don’t know her, just found the picture on google.












