Spaceships and JumpShips are separated into classes depending on how many stations they have on their bridge, and to a lesser extent by what stations there are.
A Shuttle class ship has only one station.
A Fighter class ship has two stations.
A Capital class ship has three or more stations.
Although it is usual for a Shuttle to have just a helm station, other shuttle-class configurations exist, such as a Weapons platform that has solely a weapons station. Similarly with Fighter-class ships – a JumpScout has an astrogation station and a helm station.
By default, a ship has enough hard points to have a number of weapons fitted equal to the number of stations on the ship.