Production information






Technical specifications

200[1]-225 meters[2]


90[1]-95 meters[2]


70[1]-75 meters[2]

Maximum speed

75,000 km/sec[1]-150,300,225 m/sec[2]
(25% - 50% speed of light)

Engine unit(s)


Hyperdrive system


Power plant

Asgard shields


Naquadah/Trinium alloy

Sensor systems

Asgard sensor array

Targeting systems

Earth targeting systems

Navigation system

Computer navigational systems


8-16 F-302 fighter-interceptors



Minimum crew


Other systems
  • Battlecruiser
  • Deep Space Carrier
Year introduced




"It has a few advantages over the Prometheus. The more advanced alien technologies were integrated into the original design rather than tacked on after the fact."
Samantha Carter[src]

The BC-304[3], also known as the Daedalus-class warship, is a class of deep space carrier[4] built by the Tau'ri, and the most advanced series of vessels in the Tau'ri fleet. As of 2010, six Daedalus-class warships have been built. These include the Daedalus, Odyssey, Korolev, Apollo, Sun Tzu, and George Hammond. All but two are operated by the United States Air Force. One 304, the Korolev, was given to the Russian Federation, and subsequently lost in a battle with the Ori, while another 304, the Sun Tzu, is operated by the Chinese Government. [5](SG1: "Camelot", SGA: "Enemy at the Gate")


Although referred to as "sister ships" to the BC-303 Prometheus, the BC-304s differ significantly in their design and technology. While the Prometheus was originally built with reverse-engineered Goa'uld technology and salvaged equipment, the BC-304s incorporated Asgard technology in their original design; All 304 class ships are equipped with Asgard shields, sensors, transporters, as well as intergalactic hyperdrive technology that allow the ships to make large intergalactic journeys in a matter of days. (SG1: "Moebius, Part 1")

While the Asgard initially refused to install Asgard-designed weapons on the BC-304, Asgard plasma beam weapons were gifted to the Tau'ri in 2007 as part of a larger refit to the class. Earth's flagship, the Odyssey, was the first to receive these upgrades, followed by the Daedalus and Apollo shortly thereafter. Since 2007, these upgrades have been incorporated into the base design of all new BC-304s in production. (SG1: "Unending", SGA: "Be All My Sins Remember'd", "The Last Man")

While built along similar lines to other members of the class, the George Hammond (completed in 2009) was built from the outset as an upgraded version of the Daedalus-class; The George Hammond possessed a heavier superstructure around the bridge, larger and wider 302 Bays, improved reverse thrusters that enabled it to land in smaller spaces easier, and a new, more-powerful series of railguns. (SGA: "The Lost")


Sg1 819 001

An early draft of the Daedalus.

Earth's first battlecruiser, the Prometheus, initially proved itself to be a capable warship, with several ships of the BC-303-class planned for production. However, over the course of the ship's lifespan, several improvements were made, with the Asgard installing several new systems in a show of gratitude for the Tau'ri's help in battling the Replicators. With the addition of these upgrades, and the great technological strides made by the Tau'ri in general since Prometheus was originally constructed, it soon became apparent that using the original BC-303 design as a template from which to construct new ships was impractical. Therefore, a new spaceship, intended to be built from the ground up with these upgrades, was designed.

The construction of this new class of ship, known as the BC-304, immediately became one of Stargate Command's most important projects. Currently, seventy percent of the SGC's operating budget has been transferred to the construction of Daedalus-class vessels, with each vessel costing seven billion dollars. (SGA: "Legacy: Homecoming") The first vessel of the class was the Daedalus, which was introduced in 2005. Upon its completion, the ship was immediately assigned to the Pegasus galaxy to assist the Atlantis expedition in the Tau'ri-Wraith war. (SG1: "Disclosure", "Moebius, Part 1", SGA: "The Siege, Part 3")

The following year, in 2006, the second Daedalus-class ship, the Odyssey, was constructed. The ship's initial mission was to deal with the Lucian Alliance and, foremost, the forces of the Ori, which had invaded the galaxy. (SG1: "Off the Grid")

The first two Daedalus-class ships were commanded by the United States Air Force. However, when the Ori invaded the Milky Way a third Daedalus-class ship was near completion. The Korolev was given to the Russians as a "trade agreement" for the United States of America to continue running the SGC with the Alpha Gate, which was on lease from Russia. The Korolev was destroyed during the Battle of P3Y-229 soon after being rushed into service. (SG1: "Camelot")

Odyssey beam weapons

The Odyssey uses its newly acquired Asgard plasma beam weapons to destroy an Ori warship.

In 2007, when faced with the extinction of their race, the Asgard gave the Tau'ri their complete knowledge base in the form of the Asgard computer core. They also gave the Tau'ri vessel, Odyssey, a mass-upgrade. Since that historic event all Daedalus-class warships have been outfitted with Asgard advancements, in the form of Asgard plasma beam weapons. These weapons have given the Tau'ri a military superiority over most other known races in the universe. (SG1: "Unending", SGA: "Be All My Sins Remember'd", "The Last Man")


The Apollo engages an Asuran cruiser

Another Daedalus-class ship, the Apollo was constructed later in 2007. It was stationed around Earth in defense against a potential Ori attack. The attack never took place however, and it was subsequently assigned to the Pegasus galaxy to fight the Asurans in the Asuran-Tau'ri-Wraith war. (SG1: "The Ark of Truth", SGA: "First Strike")

The next 304 in line, the Sun Tzu, was put into service by China in early 2009. In its first mission, the Sun Tzu and the Apollo jointly engaged the Super-hive, which had found the location of Earth. The attack was a failure and both the ships were crippled in battle. The Hive ship was subsequently destroyed over Earth. (SGA: "Enemy at the Gate")

Additionally, Earth's sixth 304, the George Hammond (introduced in an alternate timeline as the "Phoenix"), was completed in 2009 and is placed under the command of Colonel Samantha Carter. It later took part in the defense of Icarus Base and other Lucian Alliance conflicts. (SGA: "The Last Man", "Enemy at the Gate", SGU: "Air, Part 1", "Incursion, Part 1"). It was additionally assigned to the Pegasus galaxy to assist in the Tau'ri's conflict with the Wraith. (SGA: "Legacy: Homecoming")




The bridge of the Odyssey.


The front of the bridge.

The bridge of the BC-304 is located in the structure at the beginning of the ship's neck.[Note] While BC-304s differ significantly in several key aspects from the BC-303, the bridge layout is relatively similar. The forward view port is wider to allow a greater visual field. This is particularly useful during battle situations, allowing several officers to make suggestions about how to proceed without obstructing the captain's chair. Also built into the forward view port is a Heads up display.

The captain's chair is located in the front section of the bridge and is centered several meters behind the forward view port. A weapons officer sits to the right of the captain; a helmsman to the left. These are the only chairs present on the bridge, with the remaining bridge terminals being operated from the standing position. A large map display is located in the rear section of the bridge. This display is illuminated in a different color for each BC-304, being green on the Daedalus, orange on the Odyssey, white on the Apollo, purple of the Korolev, and orange on the George Hammond. (SG1: "Unending", SGA: "Allies", "The Last Man", SGU: "Air, Part 1")

Crew Quarters


Crew quarters aboard Odyssey.

304s contain a number of relatively spacious crew quarters. While the location of the entirety of them are unknown, several are positioned along the hull of the ship, allowing for a view into space via window. (SG1: "Unending")


The engineering deck has several control panels specifically rigged for Asgard operators. A view port overlooking the Asgard hyperdrive can be found at the aft end of the chamber. The engine room can accommodate a dozen personnel at any given time. Tasks from systems diagnostics to the deployment of weapons can be carried out here.

Briefing Room


The Odyssey's briefing room

304s are designed with a briefing room in which the captain can meet with senior officers for briefing before difficult/complex or strategic operations. The 304s' briefing room is a spacious room with a high ceiling, paneled in gray tones and equipped with large florescent lighting fixtures on the ceiling. It is dominated with a large black meeting table, and lined with several chairs along the sides. Behind the captain's chair is a large flat screen monitor built into the wall. As a screensaver, it displays the seal of the ship with the ship name at the top and the registry number of the ship along the bottom. (SG1: "Off the Grid", "Unending")


The Infirmary of 304s are nearly identical to the one on board the Prometheus. They contain several rooms with hospital beds and likely storage rooms, stocked with all manner of medications for the crew members, as well as equipment to support the crew during injuries that would be likely to be sustained onboard ship. A surgical suite is also part of the infirmary. (SG1: "Dominion", SGA: "The Siege, Part 3", "Search and Rescue", "The Lost Tribe")

Hangar Bay


F304's Hanger Bay With Shield Activated

BC-304s are able to carry twice as many F-302 fighter-interceptors as the Prometheus — eight in each of its two hangar bays, for a total of 16. However, the Daedalus and Apollo carry fighters only in the starboard hangar; the port hangar has been used to carry other vehicles, such as Puddle Jumpers from Atlantis. It is unclear if this is also true of the other 304 class vessels. Asgard shields can extend around the hangar doors in the event the flight deck is occupied while decompression procedures are scheduled to commence. An Al'kesh can barely fit into the hangar bay.[6] (SGA: "The Intruder", "The Hive", "First Strike")

Officers' Mess

Because the 304s are designed for extensive deep-space voyages, an officer's mess is available to off-duty personnel. It is located on the starboard side of the ship and offers a view port into space. Hot coffee and perhaps other drinks are available in the mess, no matter the time of day. (SG1: "Unending", SGA: "The Intruder")

Bomb Bay


The Apollo deploys Horizon.

At least one 304, the Apollo, featured a large bomb bay built into the underside of the ship, capable of deploying the Horizon weapons platform. A control room just aft of the bay included a set of observation windows, arranged much like the ship's engine room. So far, it has only been mentioned in relation to the Apollo, and no corresponding bay doors appear on the underside of the Daedalus; it's unclear whether any other 304s were so equipped, or if the Apollo constitutes a new variant of the class. (SGA: "No Man's Land", "First Strike")

Asgard knowledge room


The Odyssey's Asgard knowledge room.

The Asgard knowledge room is a room on board the Odyssey. The room contains a curved holographic display which is linked into the Asgard computer core. It can display the information stored in it to the user on a larger display than the one on the core itself and so can by used to search the database and study its contents in more detail and with greater ease. Dr. Daniel Jackson used it to pass time onboard Odyssey when it was trapped in a Time dilation field, evading attack by Ori warships. (SG1: "Unending")


304 Brig

The brig onboard Odyssey.

The brig on a 304 is a small, unadorned room not dissimilar to the ship's storage compartments. It contains a surveillance camera through which the prisoners can be observed. Though apparently designed for only a single occupant, it has been used to hold up to four people, indicating there may be only one such room on the ship. It has been used to imprison James Marrick when he created new Replicators that took over his body in that cell on board the Odyssey and the Wraith Todd on the Daedalus during the Battle of the Super-hive. (SG1: "The Ark of Truth", SGA: "Enemy at the Gate")


304 Armory

A armory on the Odyssey.

There are several armories on a 304 which appear to be small and packed with various weapons and munitions. They are known to contain Tau'ri, Goa'uld and Wraith weapons. The armory on the Daedalus was used to arm Ronon Dex and Dr. Jennifer Keller when Todd hijacked the ship, and would later have been used to arm the rest of the crew had Todd not retreated to his ship. (SG1: "Talion", SGA: "First Contact", "The Lost Tribe", "Enemy at the Gate")


Several Airlocks line the slender midsection of the ship. Airlocks may be vented through initiating a venting sequence controlled through the computer consoles, or performing a manual override to open the door via a control keypad.



The long-range transmitter array

The 304s boast a large amount of incredibly advanced technology, most of which came from the Asgard, which helps make 304s a formidable craft, capable of rivaling the spaceships of most races. In contrast to its predecessor, the BC-303, the new Daedalus-class ships had several significant advantages in that the more advanced alien technologies were integrated into the original design rather than added on afterwards.


The 304s feature a Long-range transmitter, located with a series of other communications-related equipment, including Asgard sensors, at the top-rear port section of the ship. There are also sensors located on the nose section of the ship. These sensors are highly advanced as they can scan and pinpoint life signs from far away, and are also what allows the Asgard transporters to lock on to an object accurately. (SGA: "The Intruder")



An active, but damaged, shield.

Energy shields are the primary defense technology used by 304s. The technology was shared by the Asgard with the Tau'ri after their contributions in defeating the Replicators, and so the Earth-designed Daedalus-class warships are protected by Asgard shields, giving them a great advantage over the space-faring races of both the Milky Way and Pegasus galaxies.

Asgard shields create an elliptical "bubble" around a spaceship that absorbs and diffuses the energy from weapons fire. The shields will gradually weaken under sustained fire, rather quickly if the attack is of sufficient force, allowing energy from attacks to bleed through and cause damage to the ship. Although additional energy can be allocated to the shield bubble to reinforce it, the only way for a ship to ultimately survive a continual attack is to withdraw and give the shields time to recharge. (SG1: "Off the Grid", SGA: "The Siege, Part 3", "Enemy at the Gate")

Asgard transporters

Sg1 920 1756

An Asgard transporter in action.

The Asgard first allowed the Tau'ri access to a very basic form of their beaming technology, which they included on the Prometheus during a refit around 2003. In 2005, however, during the Tau'ri-Wraith war, the Asgard provided Earth's first Daedalus-class ship with a much more advanced form of beaming technology. However, they placed a series of fail-safes into the transporters to prevent the humans from using the technology offensively. Despite this, the Daedalus used its transporters to beam Nuclear warheads onto several Wraith Hive ships (with begrudging help from an Asgard), destroying them. The Wraith, however, were able to develop jamming codes that prevented the transporters from obtaining a lock, making the transporters all but useless against them. Shields have also proven to be just effective as jamming devices. The Korolev failed to get a clear lock as they tried to beam nuclear warheads onto Ori warships. The transporters are unable to work through either the 304's shields or the enemy ship's shields, shown when the Odyssey was only able to beam Doctor Daniel Jackson out of an Ori warship when its shields were lowered and when the Daedalus had to lower its shields to beam up Lieutenant Colonel John Sheppard and Ronon Dex. If the ship is in the middle of a battle, this is inadvisable as lowering the shields renders the 304 vulnerable for a few seconds while it uses the transporter. (SG1: "Flesh and Blood", SGA: "The Siege, Part 3")

Asgard computer core


The Asgard computer core installed on the Odyssey.

The Asgard computer core is a database of all the knowledge of the Asgard. The computer core includes a knowledge base of the entire Asgard history, interactive holograms of every Asgard recorded into the knowledge base, time dilation technology, and an independent power source. These features likely only scratch the surface of the device's full capability. The Asgard gave this to the Tau'ri as a gift and to help them fight the Ori. The Asgard installed it on the Odyssey in 2007 before committing mass-suicide. (SG1: "Unending")

It is unknown whether the computer core was installed on any other Daedalus-class ship. Although that seems unlikely, the Phoenix had a room which contained an Asgard computer core in an alternate timeline. (SGA: "The Last Man")



The Odyssey activates its cloak.

The Daedalus-class ship Odyssey acquired a very effective cloaking device of Ancient design from Dr. Daniel Jackson who, at the time, possessed the mind and Ancient knowledge of Merlin. Jackson claimed that Odyssey's Zero Point Module helped him in creating the cloak, so it's possible he utilized the ZPM on the ship in some unknown manner, or that the cloak required a level of power that only a ZPM could provide. The cloak can be activated on demand from the bridge. It must be deactivated before entering hyperspace. The Odyssey is the only BC-304 to possess this cloaking ability. (SG1: "The Shroud", "Dominion")

Transportation rings


Transportation rings on a 304 activate.

In addition to the Asgard transporters, 304s also possesses transportation rings as a means of transportation. Transportation rings are used to transport people or objects over short distances, such as from ship to ship or to a nearby planet. It is unknown whether the Tau'ri utilize already-existing ring platforms or if they construct them themselves. However, the ring platforms utilized on BC-304s have a unique gray color, as opposed to the gold color seen elsewhere, possibly indicating the latter. (SG1: "Avalon, Part 1", "Dominion")

Heads up display


The HUD of the Daedalus.

A Heads up display can be pulled up on the center window of a 304's bridge. The transparent display overlays icons on to real-world objects that can be seen through the window, such as various enemy ships and other points of interest. Much like the HUD of a Puddle Jumper, the view from the bridge remains unobstructed, meaning pilots and crew can still see the battlefield, and even weapons fire dissipating the shield before them. (SGA: "The Hive")

Subspace Capacitor (Alternate reality)

The Subspace capacitor was a power generating system created by a parallel version of the Atlantis expedition. It could reach a "near-Zero Point Module" level of energy, though it is unknown what the term 'near' exactly was. Like a ZPM, it draws energy from Subspace. Since it does not draw from a limited, contained area of subspace, but instead draws energy from our subspace time a Subspace capacitor is a renewable energy source. However, there is a limit on how much power can be stored and made available at one time. (SGA: "The Daedalus Variations")

Tractor Beam

The George Hammond possessed a tractor beam which could be used to pull smaller ships into its 302 Bays. (SGA: "Inheritors")



The George Hammond's engines.

The 304s feature multiple means of maneuverability, notably 3 engines: Maneuvering thrusters, the Sublight drive and the Asgard hyperdrive. An alternate version of the Daedalus was equipped with a fourth drive known as the Alternate reality drive, allowing the ship to travel to alternate realities. (SGA: "The Daedalus Variations")

Maneuvering thrusters

Maneuvering thrusters are one of three methods of propulsion on 304s. While maneuvering thrusters are by far the slowest form of propulsion, they are able to make slight adjustments to a ship's trajectory and to help gain momentum. Reverse thrust is also possible, which is in place to help a ship slow down in the frictionless environment of space. (SG1: "Flesh and Blood", SGA: "The Daedalus Variations")

Sublight engines

The 304s have 2 main rocket boosters at the rear of the ship, which are their Sublight engines. While several smaller rocket engines also exist at the rear, these engines provide the greatest thrust, capable of moving the ship at speeds around half the speed of light. (SGA: "The Daedalus Variations")



A 304 emerges from hyperspace

The Tau'ri were first given Asgard hyperdrive technology as thanks for their help in fighting the Replicators, which are now standard on all 304s. However, Earth ships use considerably weaker power sources when compared to Asgard vessels, making the drives not being able to function at their true capacity. However, shortly prior to their extinction, the Asgard installed an advanced power core aboard the Odyssey. It is unclear whether this new power core actually improved the Odyssey's performance, as the ship was already using a Zero Point Module at that point. However, even under powered, these hyperdrives are one of the fastest when compared to those of most space-faring races. (SG1: "Unending", SGA: "Echoes")

Alternate reality drive (Alternate reality)

The drive was designed to transport matter through the Matter bridge to access parallel universes. It is powered by a Subspace capacitor, which provides near-Zero Point Module levels of energy. The device has to be encased in a shielded area of the ship, as it gives off radiation. Despite its ability of inter-universal travel, the ship would remain in the same relative position after every jump. The drive had a different, yet similar function as the Quantum Mirror. Dr. Rodney McKay theorized that if the drive were destroyed by C-4, it may tear a hole in the fabric of space/time large enough to destroy a solar system. It can also be implied that the drive may be somewhat sensitive when used by force, as when Dr. McKay utilized the remaining auxiliary power on the alternate Daedalus to jump sooner, which caused the drive to start "burning out". (SGA: "The Daedalus Variations")

Deceleration Thrusters

Deceleration thrusters are used to slow a 304 down. They are situated on the front side of the large rectangular hyperdrive engine sections and are mostly used to land.


The 304's are designed as a battlecruiser and a deep-space cruiser. It is a battle cruiser because of its fire power and effectiveness in ship-to-ship combat. For example, it has enough power to pierce some of the most advanced shielding known as well as take 14 hits from an Ori energy beam weapon before the shield fails. It is also a deepspace cruiser because of its ability to travel at intergalactic speeds for great distances. For example, the Daedalus is able to make a way from the Milky Way to Pegasus in about two weeks, even without a ZPM. (SG1: "The Ark of Truth", SGA: "The Intruder")


The 304 has a vast array of weapons, ranging from projectile to energy based.



Railguns firing

The BC-304 boasts 32 Railgun turrets for ship-to-ship combat. Just a few shots are able to take out a Wraith Dart or Goa'uld Death Glider relatively quickly. However, against capital ships, their effectiveness varies. While they have proven a match against Goa'uld Ha'tak in battle, they are far less effective against Hive ships due in part to the sheer size of such vessels and the density of their organic hulls. Furthermore, like all weapons with the exception of drone weapons and Asgard plasma beam weapons, they have proven ineffective against Ori shields. (SG1: "Off The Grid", "Ethon", "Camelot", SGA: "The Siege, Part 3", "The Last Man")

However, against vessels that possesses shields but have them deactivated, railguns have proven quite effective at penetrating the vessels' hulls and causing serious damage. During the Battle of Asuras, an opening salvo from a 304's railguns proved powerful enough to cause severe damage to an unshielded Asuran-built Aurora-class battleship, possibly leading to its destruction. (SGA: "Be All My Sins Remember'd")

Battle complement


The Daedalus launching F-302 fighter-interceptors.

Being a deep space carrier, the Daedalus-class carries a complement of several F-302 fighter-interceptors. The F-302s were originally used by the Daedalus-class' predecessor, the BC-303. The 304s can carry twice as many F-302s than the BC-303, however. It can carry two squadrons of eight F-302s, a total of sixteen fighter interceptors. The F-302s are mostly used in dogfights against other alien fighters. However, they have also proved effective in disabling the hyperdrive engines of Wraith Hive ships. The F-302s can be fitted with Nuclear warhead missiles if necessary to attack Wraith Hive ships or other ships. (SG1: "Lost City, Part 2", SGA: "The Intruder", "No Man's Land")


Normal sg1 920 2710

VLS missile tubes firing

The 304s have 16 missile bays, Naquadah enhanced Nuclear warheads, and at least one ship, the Apollo, is known to have the Horizon weapon system. Among the warheads 304s are known to carry are Mark III, Mark VIII, and Mark IX. It is unknown if some of these 304s may carry conventional warheads to attack an enemy ship. However, it is also known that 304s still carry missiles as a secondary weapon in case their Asgard weapons fail. (SGA: "The Siege, Part 3", "No Man's Land", "The Last Man")

Asgard beam weapons


Asgard plasma beams firing

Asgard plasma beam weapons were placed on the Odyssey as a gift to the Tau'ri in a mass upgrade, providing the ship with a means to effectively fight the Ori warships that had been invading the Milky Way galaxy. These weapons were eventually equipped on both the Daedalus and the Apollo, which put them to good use almost immediately when they used them to rapidly destroy the Aurora-class battleships that the Asurans were deploying in the Pegasus galaxy. In an alternate timeline, these weapons were also equipped to the Phoenix, and used to destroy Wraith Hive ships in even fewer hits than Ori warships and Aurora-class warships, as Hive ships possess no shields (allowing even easier penetration). It is more than likely that these weapons will be installed on all other 304s as well. The beam weapons can penetrate the shields of the Ori, Asuran, and probably the Lucian Alliance Warships. (SG1: "Unending", SGA: "Be All My Sins Remember'd", "The Last Man")

Horizon Weapons system


Horizon Weapons Platform

The system consists of a large, bullet-shaped delivery module containing ten missiles, six with Mark IX tactical warheads and four decoys. The device can be carried in the bomb bay of a 304 like the Apollo. Deployed from orbit, the module's three rocket engines propel it into the atmosphere; these rockets shut down and the missiles themselves are released about twelve seconds prior to impact, finding individual targets and detonating simultaneously. The total time from launch to detonation is about one minute. It is unknown if the other 304's have this weapon system and a bomb bay. (SGA: "First Strike")

Known 304s


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Stargate Wiki has a collection of images related to 304 images.
  • On various occasions, notably in "Moebius, Part 1" and "The Siege, Part 3", the design of the 304 is shown to be that of a hybrid of a Prometheus-like design with front components similar to that of the finalized 304 design. Although as time progressed, these sightings have disappeared. They do appear on occasion, such as on the Korolev in "Camelot".
  • On various occasions, the tower towards the rear of the ship appears on the ship's right side instead of left. This is the case with the Odyssey in "The Pegasus Project" and the Apollo in certain parts of "Be All My Sins Remember'd". However, they appear like this sporadically throughout the series.
  • The Bridge of the 304s is occasionally identified by fans and the MGM Tech Journal as being on the structure towards the ship's rear. However, it is often identified on the show as residing in the structure at the beginning of the ship's neck. This contradiction is likely due to the ship's neck only sporadically being shown through the bridge's main viewport (as it clearly is in the episodes "Allies" and "Air, Part 1"). Scenes in which the neck does not appear outside the bridge's window could potentially be attributed to the angle at which the scene was shot, or possibly because it was left out by the producers for whatever reason. However, as there is more evidence to show that the bridge is in the structure atop the ship's neck, this article describes the bridge as being at that location.
    • There could be another explanation for this. In "Unending" and Stargate: The Ark of Truth, there are scenes which seem to depict the bridge as being located on the rear superstructure. It might be possible that not all 304s have their bridge in the same location; The bridge of the Daedalus and George Hammond could be found at the neck structure, while other 304s have their bridges at the rear, for reasons as of yet unknown. It is also be possible, though unlikely, that 304s have bridges in both location.
      • In the episode "Unending" at around 31:20, there is a scene where Col. Mitchell looks out a window that has the same design as the window at the front of the bridge. However, as we never actually see the back of the room he's in, it is unknown whether or not he is actually standing in the bridge. It may just be a room atop the ship's rear structure with a similar window.
    • The MGM tech journal identifies an incorrect location for the bridge of Aurora-class battleships, which calls into question the accuracy of that source.
  • On the MGM Tech Journal entry for the 304, an Asgard beam turret is labeled as being at a location on the end of the neck. However, the object labeled as the beam turret existed before the Asgard upgrades.
  • The MGM Tech Journal omits a Satellite dish-like array on the rear structure above the location it labels as the 'bridge'.
  • On the bridge of each 304 is a plaque showing the name of the ship, its class, and what wing it is assigned to. However, earlier in the series, the plaque is missing, likely meaning this detail was added later on in the series - perhaps due to the increasing number of 304s present to help differentiate between them better.
  • In the later seasons of both Stargate SG-1 and Stargate: Atlantis, on the leftmost wall of the bridge of the 304s is a computer terminal. However, earlier in both series (such as in the Atlantis episode "The Siege, Part 3"), an illuminated panel showing the ship's schematics resided there instead. Furthermore, the illuminated panels that were replaced showed schematics of a ship more reminiscent of the BC-303 class.
  • While the Daedalus, Odyssey and George Hammond are shown to serve the role of a battlecruiser and support ship for the SGC and Atlantis, the Apollo appears to mainly serve in the form of performing special missions. Two of its known missions were to launch Horizon upon Asuras to stop a potential attack on Earth and to assist in hunting Poole's Replicator on Earth. The other missions shown for the ship are to defend Earth when no other ship is available in Stargate: The Ark of Truth, a mission in "Be All My Sins Remember'd" that required both the Apollo and the Daedalus and a single routine mission to Atlantis in "Remnants". Aside from that single routine mission, the Apollo is only ever seen serving during special circumstances. In contrast, the Odyssey, the Daedalus and the George Hammond are regularly seen being sent on more routine missions such as support to SG teams and Atlantis.
  • An alternate version of the Daedalus in The Daedalus Variations had an orange map display on the bridge, rather than the green one present in the main universe. Additionally, in The Last Man, an alternate version of the George Hammond had an Asgard terminal in order to give the crew access to the Asgard Core while on the bridge.


  1. 1.0 1.1 1.2 1.3 Stargate SG-1: The DVD Collection 62
    Note: the measurements presented in this issue and issue 70 conflict with each other slightly. Additionally, taking into account the officially-released dimensions of the F-302 and that of other ships, in addition to visual estimations, it is not entirely clear to what extent these measurements are correct. As they originated in an officially-licensed source, Stargate wiki includes them, in accordance with our broader policy

    Several issues of The DVD Collection magazines are known to contain errors with respect to the dimensions they provide for spaceships. Dimensions of the same class of ship may vary between issues. The dimensions given in issues may contradict how the ship visually appears on screen. The dimensions of two ships which appear similarly sized on screen may be given wildly different measurements in The DVD Collection magazines. However, as the DVD Collection Magazines are officially licensed by MGM (and thus considered canon) Stargate Wiki includes them, while noting the apparent discrepancies in instances where they occur. See policy.
  2. 2.0 2.1 2.2 2.3 Stargate Atlantis: The DVD Collection 70
  4. Off the Grid: first appearance. Phrase 'deep space carrier' appears on Paul Emerson's uniform's patch throughout the series.
  5. January 31, 2009: I’ll take a DVD, an eight-track cassette, and a tincture of laudanum on Joseph Mallozzi's Weblog.
  6. March 7, 2009: How do you answer the call of nature if you’re stuck on a cargo ship? on Joseph Mallozzi's Weblog.
  7. February 1, 2009: Dogs, Mailbag and NFL - I renounce thee on Joseph Mallozzi's blog

External links

Tau'ri spaceship classes
Fighters ( X-301 )  · ( X-302 )  · F-302
Battlecruisers ( X-303 )  · BC-303  · BC-304
Tau'ri Battlecruisers
BC-303 Prometheus
BC-304 Apollo · Daedalus · George Hammond · Korolev · Odyssey · Sun Tzu

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