You just said some level of differentiation is expected. Why can't it be both a warship and a science vessel? Why can't it be multipurpose?
The fleet consists of...
Prometheus (destroyed): Earth's first capital ship and front line defense.
Daedalus: The first Daedalus-class ship, or F-304 if you prefer. It's mission was to aide Atlantis and ferry people back and from from Earth to Atlantis.
Odyssey: This ship replaced the
Prometheus as Earth's first-line defense against alien space ships.
Korolev (destroyed): Given to the Russians for continued use of the stargate. What the Russians would have used it for remains unknown.
Apollo: Basically, the
Daedalus's relief, but more heavily armed.
Sun Tzu: Presumably the Chinese got a ship, but what will they use it for?
George Hammond: Carter's ship. All we know about it is that it ferried people to Icarus Base and attacked the Lucian Alliance base to stop them from gating to
Destiny.
It's not unreasonable for each ship to be have a different mission, no? Why does
science ship automatically mean
not as heavily armed?
