Agile: The spacecraft is more agile then normal; it provides +1 to all evasion rolls or piloting rolls involving quick maneuvering.
Faster-Than-Normal: The spacecraft has better engines and travels faster than most ships of equal mass.
Sharp Sensors: The spacecraft has a superior sensor array and can see things much better. This adds +1 to all sensor and detection rolls.
Heavy Armor: This adds +1 to Hull Strength for the purpose of damage resistance.
Junker: The ship is patched together with different parts and systems. When the ship takes damage a random, minor system may fail.
Unusual Quantum Signature: The ship's quantum hyperspace drive attracts strange aliens that live between the realities of the universe. These strange aliens are a thorn in the side of the characters, a nuisance at best, and a menace at worst.
Scale 0 -- Light Fighter: A small agile fighter with few weapons and even less armor. The A-Wing from Star Wars is a good example, as are the 4 winged fighter ships from Babylon 5. Light fighters are usually piloted by one person, two at the very most.
Scale 1 -- Heavy Fighter or Small Shuttlecraft: Bigger than light fighters but still relatively small. Heavy fighters and shuttlecraft can only hold a few people.
Scale 2 -- Medium-sized Shuttlecraft, Courier or Scout Ship: Now you are getting out of tiny fighter territory and into true spaceships. This a fairly nice ship for a small player group, though it may not last long against much resistance in combat.
Scale 3 -- Corvette or Light Freighter: A true spaceship, the corvette is fairly large, but still not large enough to take on capital ships. The Millennium Falcon of Star wars is a good example of a ship this size. This is a great sized ship for player groups; it is big enough for most adventures, such as the exploration of planets or ferrying cargo, while not overwhelming in size, like a capital ship.
Scale 4 -- Large Corvette: Another good ship for player characters, much like Scale 3 except, well, bigger.
Scale 6 -- Heavy Destroyer or Heavy Freighter: A dedicated capital ship, the heavy destroyer will have multiple weapon systems and will most likely be a difficult opponent in combat. A freighter will have a huge cargo bay in place of weapons.
Scale 8 -- Bulk Freighter or Cruiser: The cruiser is a much bigger version of the destroyer, hosting many weapon systems and even a few fighter craft. Bulk freighters are huge vessels that are most likely the standard cargo carriers in the safe and secure regions of space.
Scale 10 -- Dreadnought: These huge ships form the core of any fleet. Their massive weapon systems, almost impenetrable armor, and their army of soldiers stationed onboard make them a fortress in space.
Scale 11+: Any Scale above 10 should be reserved for one-of-a-kind ships and super powered alien spaceships.