Railjack/Main

Railjacks are large Orokin-era interceptor spacecraft used by the Tenno. These formidable spacecraft feature a plethora of weaponry and defensive systems that allow them to face even large capital ships head-on in direct combat, as well as a "Void engine" propulsion system that allows them to travel independently of the Solar Rail network. Cephalon Cy serves as the Railjack's navigator and executive officer.

While a Railjack can be controlled by a single Tenno, optimal performance requires the ship to be crewed by a full Squad of four Tenno, each responsible for managing different areas of the ship including the helm, battle stations, security against intruders, repairs, and putting out on-ship fires. Players can fluidly take on any role as needed to keep the Railjack in fighting shape.

Although Railjacks cannot dock directly with enemy vessels, they are equipped with an Archwing Slingshot that allows Tenno to be shot directly at enemy ships to breach the hull and board them. Alternatively, Tenno can also exit into space using their Archwings to fight individually as well as explore areas of interest in space.

A Railjack is constructed during the Rising Tide quest, which requires completion of The Second Dream. Railjacks are managed, researched, and customized in a Clan Dojo's Dry Dock, and each player will only be able to see their own Railjack.

Railjack Build Requirements
These are personal builds; clan participation is only for the Dry Dock itself and the initial Cephalon Cy research. Hence, Clan multipliers do not apply. Unlike crafting items in the Foundry, resources needed for repairing Railjack components can be contributed in stages. Each section repair requires 12 hours to complete in the Dry Dock and cannot be rushed with platinum, thus the complete Railjack requires an absolute minimum of 3 days to build.

When completed, the Railjack can be seen floating above the Orbiter, connected by a large transport tube. Players can board their personal Railjack from the Orbiter's bottom deck, in the middle between the three rooms.

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Fuselage
The Fuselage repair after retrieval and installation requires:



Propulsion Systems
The Propulsion Systems repair after retrieval and installation requires:



Port Nacelle
The Port Nacelle repair after retrieval and installation requires:



Starboard Nacelle
The Starboard Nacelle repair after retrieval and installation requires:



Tail Section
The Tail Section repair after retrieval and installation requires:



Engine Cowling
The Engine Cowling repair after retrieval and installation requires:


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Reliquary Key
Once the player has finally completed construction of the Railjack, they will be able to board it, but the ship's power source, the Reliquary Drive, is offline which prevents it from taking flight. After inspecting the drive, Cephalon Cy directs the Tenno to find a Reliquary Key on Lua. This mission is a simple snatch-and-grab to collect the key and extract, avoiding the Corrupted and Sentient enemies along the way.

With the Reliquary Key in hand, the Tenno inserts it into the Reliquary Drive, supplying power to the Railjack. The player is now finally ready to embark on Empyrean missions through the Railjack's navigation console.