psy9o wrote:The problem with using MT to express ship classes is that some people confuse this with weight. This is incorrect, kg is a measurement for mass. 1L of water is one 1kg, doesn't matter whether your on earth or on a planet with ten times as much gravity this always stays true. Weight however is measured in Newton because this is a force. So a ship of 8.5 MT can vary in sizes depending on how much mass construction materials had and what the cargo is. So even if and SD(P) has a mass of 8.5 MT and you have a cargo ship of 8.5 MT the size both ships have can be different since an SD is probably going to be constructed with materials wich have a higher mass and the ship is going to have a lot less empty space then a cargo ship.
The MT measurements are not a measurement of the ship's mass. They are a measurement of the size(volume) of the compensator field needed for that ship.
There is word of god to that effect, though I don't remember exactly where/when he said it.