Fuel Tank

The fuel tank is a part that stores fuel units to be consumed by engines to accelerate a ship. Only 2 dimensions can be set in the VAB; Diameter and height.

Fuel Capacity
In the game, fuel units are measured in imperial pints. The game uses math to calculate fuel storage capacity. Feet are also interchangeable with studs.

If fuel tanks were imagined as cubes, then their volume would simply be V = d2 • l. However, since they are cylinders, they are later multiplied by the area of a circle with a diameter of 1. The equation to get that area is A = π • r. That means the equation to get volume in cubic feet/studs is V = (d2 • l) • (π • r).

Since there are 49.8307 imperial pints in a cubic foot, the full formula to get fuel storage is (d2 • l) • (π • r) • 49.8307.