# Star ship sizes

Being nice and simple, **Full Thrust** tends to be a
straightforward system to convert various science fiction
settings to. There are plenty of conversions to be found
on the Web, including my own
Star Wars - conversions.

However, **Full Thrust's** simplicity also causes
problems. Nowhere in the rules are real world scales
mentioned, leaving people to guess how much mass the
*Nostalgia for Infinity* or *Lexx* would
have within the game. Given the

wide range - of ship sizes available, this can make things a wee bit complicated.

Mostly in order to try and rationalise my own conversions, I've laid down my own thoughts on how things might work.

# First Principles

First principles are always good. We can start by taking
something we know, and working from there. I'm assuming
by the way, that a *mass* is a measure of volume, so
two ships of the same mass will be about the same size.

The *Fleet Book* gives ship sizes in tonnes, with
1 mass = 100 tonnes. Though this suggests mass rather than
volume, Traveller uses tonnes to equal displacement tonnes,
and so I shall assume the same.

A bay for a single fighter takes up 1.5 mass. The generic rules for bays says that a bay will take up 1.5 x the mass of the ship it contains, so a fighter can be assumed to be around mass 1.

Assume 20m x 5m x 5m = 500m^3.

# Example ships

Imperial Star Destroyer, 65,000,000m^3.

Millenium Falcon, 5,000m^3.

Traveller Beowulf Class Free Trader. 2,800m^3.