
Endeavour is designed to comfortably accommodate a crew for 3-6 month missions (up to twelve months in an emergency). The ship is equipped to cover multiple mission requirements with labs across various scientific disciplies to allow in-field analysis. During missions the ship is capable of supporting itself without needing to return to base, including performing maintenance and repairs.
Each deck is self-contained, so that loss of containment on one deck will not impact another deck's operation, apart from shared life support systems (where deck-specific backup systems would operate).
Endeavour's design incorporates three types of internal space to maximise survivability.
A heavily armoured central citadel includes internal armour and blast doors separating the citadel from other internal spaces. All critical systems are located within the citadel, which is designed to allow operation and maneuvering even if the rest of the vessel is heavily damaged.
Living quarters, labs, cargo storage and other non-critical spaces take up the bulk of the vessel's volume. These spaces are protected by armour but are designed so that damage to these areas will not be critical to survivability.
Forward sections of the vessel are isolated from secondary spaces via an armoured firewall. These spaces typically contain low-priority spaces. Tertiary spaces are designed to take initial impact of incoming fire or damage.
Endeavour has seven decks and a flight deck.
Deck one contains the ship's command centre - the bridge.
The shuttle dock provides direct access to shuttle craft and a decontamination facility for crew returning from away missions.
Deck two contains scientific labs, cargo bays and a data centre.
Pre-mission support facilities include a briefing room, crew staging area and armoury, connected directly to the shuttle dock via a dedicated stairwell.
A security office supports the shuttle dock including holding facilities.
Deck three contains the vessel's main cargo bays.
The vessel's medical facility, including a medical lab, is located aft.
Two of the vessel's torpedo tubes are located forward on this deck.
The vessel's main engine room, providing access to the MIE engines, is located aft.
Officers quarters are located forward. The wardroom is located at the bow.
Sensor equipment, including a dedicated data centre to process sensor readings, is located within the citadel.
Crew quarters are located on deck five, along with the galley - the main dining area for crew.
The vessel's main engineering operations and control area is located aft on this deck.
Deck six contains additional crew quarters and the crew lounge, which is directly accessible from the galley via a stairwell.
The vessel's fusion reactor and other key engineering systems are accessible from this deck.
Deck seven houses two of the vessel's torpedo tubes and the Faster-Than-Light (FTL) engine.
Engineering workshops on this deck provide for the maintenance, repair and fabrication of a number of vessel components, systems and equipment.
The flight deck launches and retrieves shuttles that are not equipped with a standard docking interface, cargo vessels and larger vessels. A large retractable door aft
Flight operations for all vessels (incluidng docked shuttles) is managed from the flight control room.