The John Bachmeyer class is a typical gas tanker that carries LPG (Liquified Petrolium Gasses) from the distant gas-mines to the big process facilities at places like Scintilla Prime. A rather slow vessel but over the years it has proved to be a stable and reliable design, and today it is used by a number of consortiums all over the sector.
The ship is constructed around 33 coolant pressure tanks, each containing 4.2 mill m³ gas.The value of the cargo can be quite high, and even if they are only in transit to the Joint Fleet Warp-travel rendezvous points, it's not uncommon to see these vessels escorted by the Imperial Navy, especially because the majority of the gas-giants which are being harvested for their valuable products are placed in remote and unsecure parts of the sector.