After the destruction of the Twelve Colonies in a devastating genocidal attack on the Colonial worlds, Commander Adama orders all survivors to find what operational ships that remain on their shattered worlds and fly them towards battlestarGalactica, the sole surviving battlestar after her sister warships are also destroyed in the two-prong Cylon attack. With nowhere else to call home, Adama decrees that the remnants of humanity will search for the Thirteenth Tribe on a planet called Earth.
Under the guardianship of Galactica, the Fleet comprises of 220 civilian ships. With the exception of Galactica, the ships are not capable of lightspeed flight. The Fleet's overall speed is limited to that of the slowest ship within the group. As all ships in the Fleet were filled to (or over) capacity, removing the slower ships from the caravan is not a option.
A dejected Apollo tells an equally-dejected Starbuck that he found a little place on board the freighter that "with a little paint, and some nice curtains, it's so cozy".
Ship on the route taken by the transport shuttle Canaris. From the name, this is likely the ship from whence Bora, Maga, and Taba came, and is presumably run by Borellian Nomen (given their disdain for other Colonials).
Conning his way out of paying for passage to Rising Star, Chameleon—claiming to be IFB's president—tells the ducket taker on the shuttle Canaris to head over to this ship so that he may be interviewed.
Edina
Civilian ship
Lost Planet of the Gods, Part II
According to Colonel Tigh, this ship almost goes astray when in the Magnetic void en route to Kobol.
Freighter with indigent and disaffected refugees; the "Borays of humanity" reside here.
Livestock Ship
Agricultural ship, civilian
The Man with Nine Lives
Commanded by Captain Dmitri, this ship is presumably a source for meat and other poultry. Chameleon posed as Dimitri in order to con some Borellian Nomen (Bora, Maga and Taba) into buying parts to build a ship of an unknown type.
Starbuck complained about being able to see a sanitation ship out the porthole of the dining chamber of the Rising Star as an excuse to book an additional chamber to keep Athena and Cassiopeia from accidentally meeting, as he engaged in a dinner-date with both at the same time.
Senior Ship
Elderly caretaker ship, civilian
The Man with Nine Lives
SiressBlassie bombarded Galactica with messages asking about the whereabouts of Chameleon from this ship. Adama later remands Chameleon to this ship as Blassie has offered to take custody of the apparent vagrant.
Interestingly, in "Space Croppers", the Galactican Fleet is shown to have three agro ships, despite the fact that two were destroyed nearly three decades before. (This can be seen as a continuity error.)
The Fleet is also comprised of shuttles and Colonial Vipers, which are likely not indicated in the "220 ship" figure given in "Saga of a Star World". It is indicated that there are non-military shuttles that ferry people and, possibly, supplies throughout the Fleet. One such craft is the shuttle Canaris (The Man with Nine Lives), in addition to the shuttle piloted by Aurora of the Celestra (Take the Celestra).