A is for Astronauts on some kind of Star Trek.
B is for Brunt. Liquidator. FCA.
C is for Charlie X.'
D is for Defiant. At least three Federation starships bore this name.
E is for Excelsior. She's supposed to have transwarp drive.
F is for the Federation Council. It helped govern the UFP and was supposedly so awesome that, as of 2267, only one person had ever turned down a seat on it.
G is for Gamma II. Planetoid with an automatic communication and astrogation station.