BC-303

The BC-303 is a fictional spacecraft in the science-fiction television show, Stargate SG-1. The BC-303 is the production model of the X-303. Both the F-302 and BC-303 are capable of hyperspace travel, primarily because of advances in hyperspace technology due to the discovery of naquadria on Jonas Quinn's homeworld. The original X-303 featured in the show is named Prometheus. The Daedalus is the sister ship of the Prometheus and is the second of its class of battlecruiser. However, design changes in the Daedalus indicate a potential new design designation. Significant improvements and design changes were integrated into the Daedalus design.

Ship List

Prometheus

The prototype of the X-303 series, Prometheus was hijacked before completion by rogue NID agents demanding the release of Colonel Frank Simmons and the Goa'uld Adrian Conrad. SG-1 managed to reclaim control of the ship, and were enlisted by the Asgard to help them trap the Replicators within a time dilation bubble. The Asgard thanked Earth by fitting advanced systems onboard the X-303.

The ship was subsequently finished and began a shakedown cruise. A problem with the hyperdrive engines forced the crew to eject the reactor into space, stranding the ship on an alien world.

Prometheus remained there until she was fitted with the hyperdrive taken from a captured Al'kesh bomber. Unfortunately this meant that the ship was underpowered, since the Al'kesh reactor couldn't generate the power needed to fully operate Prometheus. She returned to Earth, but was attacked by an unknown alien ship en route and suffered damage while hiding from it inside a corrosive nebula. The damage was repairable, however.

Prometheus served in the defense of Earth from Anubis's forces, and was almost destroyed before the Ancient weapons found in the Antarctic outpost were activated.

The ship is operated by the U.S. Air Force, and its crew consists of Air Force personnel. Operationally Prometheus (and her following sister ships) are under the Pentagon's "Office of Homeworld Security".

Three officers have been shown in command of Prometheus: Col. William Ronson (Seasons 6 and 7), Major General George Hammond (both parts of "The Lost City") and Col. Lionel Pendergast (season 8).

The Prometheus uses Asgard technology in its hyperdrive engine and in its weapons and shields (There may be other uses of Asgard technology installed). This technology was fitted by the Asgard in return for Earth's help in fighting the replicators. It also relies on some Goa'uld technology the most notable being the transport rings.

Daedalus

Little is known of this ship except that it is described as a sister ship to Prometheus and is of the BC-303 class, the production model of the X-303. Daedalus is expected to appear in Stargate Atlantis' season two. After finding a ZPM in Egypt, Daedalus travels to Atlantis to power up its weapons and shields.

The Daedalus, while the same class as her sister ship, is more advanced than Prometheus. The alien technology was integrated directly into its design, rather than being added on later, as was the case for the former. The Daedalus is greater in size than its sister ship. It also remains possible that the Daedalus will be classified as an entirely new ship or redesignated because of the improvements in the design. The Daedalus is the production model of the BC-303 series and is expected to represent future versions of the ship class.

Commanding officer of the Daedalus will be Col. Steven Caldwell.