SS stands for Steam Ship but the minnow was powered by diesel motor and should have had the prefix MV (marine vessel or motorized vessel) however the producers initials were S.S and that is my personal theore as to where it came from, as Minnow came from Minow the head of the FCC
The SS Minnow
SS Minnow
the SS Menno
96
SuperSport
Super Sport (SS)
In the case of ships SS stands for steamship.
gr = Grain ss = 1/2
lightning bolt
Stainless steel
Schutzstaffel (Protection Unit)
SS stands for scout sniper