This is a fictional fleet replenishment tanker of the Ayrton-class. Around 30,000-35,000 tons in displacement and fitted with a RIM-116 Rolling Air Missile for point defence against aerial threats, it is a mighty addition to any navy and an important part of keeping your surface fleet operational during deployments.
It's very easy to print and is suited to be printed in the size the model's in (~90mm in length). Final result was really good in my Flasforge Finder.
This is part of a hobby project of mine that included making 200+ vehicles, aircrafts and naval vessels for a fictional armed forces (of the country of Acorsia).