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The Railjack has four main components that determine its stats: Shield Arrays for shield capacity and regeneration rate/delay; Engines for top speed, acceleration, and turning rate; Plating for hull (health) and armor, and Reactors for Ability Strength, Ability Range, and Ability Duration for Battle Mods.

Sigma versions of armaments can be researched and purchased in the Clan Dojo Dry Dock research console, then installed in the Railjack console. These have no build time once all the resources needed to build them are contributed.

House versions can be found as Wreckage in missions, with each House favoring certain attributes over others. Wreckage Components need to be repaired either with resources taking 12 hours to complete (this can be rushed for Platinum64.png 20), or instantly without using any resources by expending a single-use Rush Repair Drone. The Wreckage Components stats vary randomly.

With the exception of the Sigma variants and all the Platings, all MK III Components have an additional special unique trait in addition to the base stat increases, and each component from each house comes with 2 different variants of the trait (except Vidar Shield Array that has an extra variant for a total of 3 different unique traits).

Players start with 8 Component and Armament slots for repaired wreckage, with two additional slots being purchasable for Platinum64.png 12. Players can hold up to an indefinite amount of recovered wreckage which can be inspected to reveal their stats and traits. There are only 30 inspected wreckage slots, which cannot be increased in any way, and players with capped inspected wreckage cannot continue inspecting wreckage or embark on Empyrean missions until they have cleaned their inventory of inspected wreckage.

All wreckage cannot be traded between players.

Shield Array[]

Main article: Shield Array

Shield Arrays are Components that modify a Railjack's defensive Shields. Stats are randomized within a range determined by the item's House and Tier.

Shield Array stats vary between Houses, but the differences follow the same pattern:

  • Lavan Shield Arrays had the best in class capacity, at the cost of recharge performance.
  • Vidar focused their Shield Array research on reliability rather than all out performance.
  • Zetki Shield Arrays had unbeatable recharge delay at the expense of maximum shield capacity.
View Shield Tier List

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Item Stats
Shield Capacity 1,500 1,400 - 2,000 1,200 - 1,750 1,050 - 1,500
Shield Recharge Delay Reduction 1.00s 0.10s - 1.00s 0.50s - 2.00s 1.00s - 4.00s
Shield Recharge per second 7.00% 15% - 30% 15% - 30% 10% - 12%

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Shield Capacity 1,350 1,200 - 1,700 1,100 - 1,500 1,050 - 1,350
Shield Recharge Delay Reduction 0.50s 0.10s - 0.50s 0.50s - 1.00s 0.50s - 2.00s
Shield Recharge per second 5.00% 5.00% 5.00% 5.00%

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Shield Capacity 1,200 1,100 - 1,400 1,100 - 1,300 1,050 - 1,200
Shield Recharge Delay Reduction 0.0 0.0 0.0 0.0
Shield Recharge per second 5.00% 5.00% 5.00% 5.00%

HouseSigma.png Sigma
Shield Capacity 1,000
Shield Recharge Delay Reduction 0.0
Shield Recharge per second 5.00%

View MK III Shield Unique Traits List
House Component Trait
HouseLavan.png Lavan Shield Array +1000% of Energy consumed using Battle Mods is converted to Shields
HouseLavan.png Lavan Shield Array Shields replenish 50x faster while cloaked
HouseVidar.png Vidar Shield Array 30% of Shield Damage is diverted to increase Turret Damage by up to 300 for the next shot fired
HouseVidar.png Vidar Shield Array Every 10s, shields apply an Electrical proc to all enemies within 50m
HouseVidar.png Vidar Shield Array Redirect 50 Energy to Shields with every kill
HouseZetki.png Zetki Shield Array +25% Railjack damage while shield depleted
HouseZetki.png Zetki Shield Array +10% Tenno shields on Railjack

Engines[]

Main article: Engines

Engines are Components that modify a Railjack's cruising speed and boost capabilities. Stats are randomized within a range determined by the item's House and Tier.

A Railjack's base Engines stats are:

  • Engine Speed: 150 meters per second
  • Engine Boost: 1.3x

Avionics are applied to these base stats, and then the equipped Engine's values are added on.

Total speed can be calculated using the following formula:

Total Base Speed = [150 × (1 + Bonus % from Conic Nozzle12?cb=20190608095452 Conic Nozzle)] + (Additional Engine Speed)

Base Boost Multiplier is 1.25x, and the bonus from Engines is additive, but at least in the UI, the Boost Multiplier is rounded to the nearest .1. For example, an Engine with +0.17 Boost Speed Multiplier would show an Engine Boost value of 1.4x.

Total Boost Multiplier = [1.25 × (1 + Bonus % from Ion Burn12?cb=20190608095452 Ion Burn)] + (Additional Boost Multiplier)

Engines stats vary between Houses, but the differences follow the same pattern:

  • Lavan Engines touted the best boost speeds, but struggled to compete at top speeds.
  • Vidar Engines were the best in class for top speed, at the expense of Boost performance.
  • Zetki Engines were solid performers in all categories but stood out in none.
View Engine Tier List

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Item Stats
Engine Speed 30 m/s 10 - 30 m/s 30 - 60 m/s 20 - 40 m/s
Engine Boost 0.20x 0.30 - 0.60x 0.05 - 0.20x 0.10 - 0.30x
Equipped Stats
Engine Speed 180 m/s 160 - 180 m/s 180 - 210 m/s 170 - 190 m/s
Engine Boost 1.45x 1.55 - 1.85x 1.30 - 1.45x 1.35 - 1.55x
Speed While Boosting 270 m/s 256 - 342 m/s 234 - 315 m/s 238 - 304 m/s

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Item Stats
Engine Speed 20 m/s 5 - 20 m/s 20 - 40 m/s 10 - 30 m/s
Engine Boost 0.10x 0.20 - 0.40x 0.05 - 0.10x 0.10 - 0.20x
Equipped Stats
Engine Speed 170 m/s 155 - 170 m/s 170 - 190 m/s 160 - 180 m/s
Engine Boost 1.35x 1.45 - 1.65x 1.30 - 1.35x 1.35 - 1.45x
Speed While Boosting 238 m/s 233 - 289 m/s 221 - 266 m/s 224 - 270 m/s

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Item Stats
Engine Speed 10 m/s 5 - 10 m/s 10 - 30 m/s 10 - 20 m/s
Engine Boost 0 0 0 0
Equipped Stats
Engine Speed 160 m/s 155 - 160 m/s 160 - 180 m/s 160 - 170 m/s
Engine Boost 1.25x 1.25x 1.25x 1.25x
Speed While Boosting 208 m/s 202 - 208 m/s 208 - 234 m/s 208 - 221 m/s

HouseSigma.png Sigma
Item Stats
Engine Speed 0 m/s
Engine Boost 0
Equipped Stats
Engine Speed 150 m/s
Engine Boost 1.25x
Speed While Boosting 195 m/s

(Without any speed mods (e.g. Conic Nozzle12?cb=20190608095452 Conic Nozzle) equipped, and assuming rounded boost multiplier.)

View MK III Engines Unique Traits List
House Component Trait
HouseLavan.png Lavan Engines +20% Top Speed while shields are depleted
HouseLavan.png Lavan Engines Tenno gain 500 overshields after being launched from the Slingshot
HouseVidar.png Vidar Engines +50% boost speed while shield depleted
HouseVidar.png Vidar Engines -10% Intruders armor
HouseZetki.png Zetki Engines Shields regenerate 50% faster when Railjack is stationary
HouseZetki.png Zetki Engines +20% Tenno weapon damage onboard Railjack

Plating[]

Main article: Plating

Plating are Components that modify a Railjack's Hull (Health) and Armor. Stats are randomized within a range determined by the item's House and Tier.

Unlike other Railjack Components, the Plating does not have any unique traits.

Plating stats vary between Houses, but the differences follow the same pattern:

  • Lavan focused their efforts on superior Hull composition, at the cost of Armor integrity.
  • Vidar designed their plating to have the highest possible Armor strength, Hull reinforcement was less of a priority.
  • Plating from House Zetki struck a balance between Armor strength and Hull fitness.
  • The above implies that best potential effective health (for Mk II-III) can only be obtained from Lavan plating, Vidar being mediocre, and Zetki being the worst choice.
View Plating Tier List

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Hull (Health) 2450 4500 - 6000 3300 - 4400 3600 - 4800
Armor 1625 2150 - 2688 2950 - 3688 2350 - 2938
Effective Health 15720 36750 - 59760 35750 - 58490 31800 - 51810

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Hull (Health) 1750 3350 - 5025 2550 - 3825 2750 - 4125
Armor 1300 1775 - 2367 2375 - 3167 1925 - 2567
Effective Health 9333 23171 - 44672 22737 - 44204 20396 - 39421

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Hull (Health) 1350 2200 - 4400 1800 - 3384(3600?))[1] 1900 - 3800
Armor 975 1400 - 2100 1800 - 2700 1500 - 2250
Effective Health 5737 12467 - 35200 12600 - 33840(36000?) 11400 - 32300
  1. Based on trends of other MK1 plating values, Max Hull is 2x the minimum amount. but highest value has only been updated to 3384

HouseSigma.png Sigma
Hull (Health) 1050
Armor 650
Effective Health 3325

Reactor[]

Main article: Reactor

Reactors are Components that modifies a Railjack's Battle mods Strength, Range, and Duration. They are randomized within a range determined by the item's House and Tier.

Reactor stats vary between Houses, but the differences follow the same pattern:

  • Lavan Reactors prized Railjack ability Duration above all else.
  • Vidar Reactors were optimized to increase the Railjack's ability Range.
  • The design priority for Zetki's Reactors was greater Railjack ability Strength.
  • Mk II Reactors have the highest main stat bonus.
  • Mk III Reactors have a secondary stat with Lavan increasing Strength, Vidar increasing Duration, and Zetki increasing Range, but at some expense to the main stat. The secondary stat can only be maxed with Valence Fusion using other Mk III of the same type.
View Reactor Tier List

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Duration 15% 40-60% 20-40% 0%
Range 15% 0% 40-60% 20-40%
Strength 15% 20-40% 0% 40-60%

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Duration 0% 50-80% 0% 0%
Range 0% 0% 50-80% 0%
Strength 25% 0% 0% 50-80%

HouseSigma.png Sigma HouseLavan.png Lavan HouseVidar.png Vidar HouseZetki.png Zetki
Duration 20% 20-40% 0% 0%
Range 0% 0% 20-40% 0%
Strength 0% 0% 0% 20-40%

HouseSigma.png Sigma
Duration 0%
Range 0%
Strength 0%

View MK III Reactor Unique Traits List
House Component Trait
HouseLavan.png Lavan Reactor Equipping Lavan Hull Plating increases max Shields by 25%.
HouseLavan.png Lavan Reactor Tenno gain 50% Damage increase for 5s after being launched from the Slingshot
HouseVidar.png Vidar Reactor +100% damage immunity duration after a Major Breach is repaired
HouseVidar.png Vidar Reactor Tenno gain 50% Speed Boost for 5s when deploying their Archwing
HouseZetki.png Zetki Reactor 50% chance that an Electric Hazard will repair automatically after 5s
HouseZetki.png Zetki Reactor 50% chance that a Fire Hazard will repair automatically after 5s
HouseZetki.png Zetki Reactor 50% chance that an Ice Hazard will repair automatically after 5s

Drop Sources[]

All components of the same Tier and House share the same drop source and chance.

Region Tier House Faction Source Drop Chance
Earth Proxima Mk I HouseLavan.png Lavan Grineer Skirmish Reward 6.00%
HouseVidar.png Vidar
HouseZetki.png Zetki Elite Kosma Outrider 11.11%
Venus Proxima HouseLavan.png Lavan Corpus Exterminate/Volatile Reward 7.32%
Defense Reward (Rotation A)

Engines & Reactors

20.00%
Defense Reward (Rotation B)

Shields & Plating

17.65%
Orphix Reward (Rotation A) 14.29%
HouseVidar.png Vidar Exterminate/Volatile Reward 7.32%
Defense Reward (Rotation B)

Engines

17.65%
Defense Reward (Rotation C)

Reactors, Shields & Plating

15.79%
Orphix Reward (Rotation B) 13.64%
HouseZetki.png Zetki Taro Weaver 12.50%
Saturn Proxima Mk II HouseLavan.png Lavan Grineer Skirmish Reward 6.00%
HouseVidar.png Vidar
HouseZetki.png Zetki Elite Gyre Outrider 11.11%
Neptune Proxima HouseLavan.png Lavan Corpus Exterminate/Volatile Reward 7.23%
Defense Reward (Rotation A)

Engines & Reactors

20.00%
Defense Reward (Rotation B)

Shields & Plating

17.14%
Orphix Reward (Rotation A) 14.29%
HouseVidar.png Vidar Exterminate/Volatile Reward 7.23%
Defense Reward (Rotation B)

Engines

17.14%
Defense Reward (Rotation C)

Reactors, Shields & Plating

15.38%
Orphix Reward (Rotation B) 13.64%
HouseZetki.png Zetki Axio Weaver 12.50%
Pluto Proxima Mk III HouseLavan.png Lavan Corpus Exterminate/Volatile Reward 7.23%
Defense Reward (Rotation A)

Engines & Reactors

20.00%
Defense Reward (Rotation B)

Shields & Plating

18.18%
Orphix Reward (Rotation A) 14.29%
Vorac Gox 12.50%
HouseVidar.png Vidar Exterminate/Volatile Reward 7.23%
Defense Reward (Rotation B)

Engines

18.18%
Defense Reward (Rotation C)

Reactors, Shields & Plating

15.38%
Orphix Reward (Rotation B) 13.64%
Vorac Gox 12.50%
HouseZetki.png Zetki Vorac Weaver 0.65%
Veil Proxima HouseLavan.png Lavan Grineer Skirmish Reward 6.00%
HouseVidar.png Vidar
HouseZetki.png Zetki Elite Exo Outrider 12.50%
HouseLavan.png Lavan Corpus Orm Gox 12.50%
HouseVidar.png Vidar Exterminate/Volatile Reward 7.23%
Defense Reward (Rotation A)

Engines & Reactors

21.43%
Defense Reward (Rotation B)

Shields & Plating

17.14%
Orphix Reward (Rotation A) 14.29%
Vorac Gox 12.50%
HouseZetki.png Zetki Exterminate/Volatile Reward 7.23%
Defense Reward (Rotation B)

Engines

17.14%
Defense Reward (Rotation C)

Reactors, Shields & Plating

Orphix Reward (Rotation B) 13.64%

Valence Fusion[]

Valence Fusion combines two of the same Railjack Components and Armaments (in respect to the House and Type) into one with superior bonus stats. This applies to Turrets, Shield Arrays, Engines, Platings, and Reactors, but does not apply to Ordnance or other Sigma Items. This can be managed in the Dry Dock. Stat increases are capped between 40% & 60% for weapons and miscellaneous values for components. Valence Fusion is completed instantaneously.

To perform Valence Fusion, players must click on the component or armament desired to be upgraded, and then the part to be used as the donor. Only the object to be upgraded must be constructed, while the donor item can either be repaired or unrepaired. If the component has a different MK III unique trait, the player is prompted to select one. If the player does not have enough resources, a failure message will notify the player which resources they are missing. If the item to be upgraded is already maximized, a failure message will notify the player that the item can no longer be enhanced further. Once the components/armaments with stats below maximum have been selected and the player has enough resources, a confirmation screen displays the desired component's new bonus values and warns that the transfer will consume the selected donor component along with the required resources. Players are then prompted to type FUSE to confirm the fusion.

Costs[]

Fusing with repaired parts will require some Endo:

  • MK I: 800 Endo
  • MK II: 1600 Endo
  • MK III: 2400 Endo

Fusing with unrepaired parts instead of Endo costs the 40%of the resources and Credits64.png Credits that would be used to repair it (Any decimals are rounded up to the nearest whole number, ex: 3.2 = 4).

Upgrade[]

Upgrades count towards the stat bonus on MK III turrets and the random stats on other Railjack gear.

  • Fusing gear that is the same tier level (e.g. MKIII with MKIII) will yield an increase of stats by 10%.
    • E.g. fusing together Vidar Photor MKIII with +40% bonus damage with another Vidar Photor MK III with +35% bonus damage, results in one Vidar Photor MK III with +44% bonus damage.
  • Fusing gear that has a lower tier level (e.g. MKII with MKIII or MKII with MKI) will yield an increase of stats by 5%.
  • Fusing gear that has a lower tier level by two (i.e. MKI with MKIII) will yield an increase of stats by 2%.
  • Fusing gear that has a higher tier level (e.g. MKIII with MKII) is equivalent to the same fusion the other way around (Results in MKIII Gear).


For Weapons and same-tier Armaments, fusions can be achieved at the following percentages:

Minimum Initial Value Maximum Number of Fusions
54.6% 1
49.6% 2
45.1% 3
41.0% 4
37.3% 5
33.9% 6
30.8% 7
28.0% 8
25.5% 9
25.0% 10


Manufacturing Requirements[]

Manufacturing and repair costs are the same for all Shield Arrays, Engines, and Reactors of the same House and tier.

Mk I Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Nullstones64.png
2
Asterite64.png
75
Titanium64.png
2,500
Pustrels64.png
1,500
Time: 0 hrs
Rush: N/A
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A
Railjack Lab Research
Credits64.png
10,000
Morphics64.png
1
Circuits64.png
2,159
NanoSpores64.png
4,750
Salvage64.png
2,894
Time: 72 hrs
Prereq: N/A
Ghost Clan x1   Shadow Clan x3   Storm Clan x10   Mountain Clan x30   Moon Clan x100

Mk II Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
AucruxCapacitors64.png
3
Isos64.png
150
Copernics64.png
4,000
Titanium64.png
3,000
Time: 0 hrs
Rush: N/A
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A
Railjack Lab Research
Credits64.png
10,000
Gallium64.png
1
Rubedo64.png
2,622
AlloyPlate64.png
6,510
NanoSpores64.png
5,500
Time: 72 hrs
Prereq: Mk I
Ghost Clan x1   Shadow Clan x3   Storm Clan x10   Mountain Clan x30   Moon Clan x100

Mk III Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Nullstones64.png
7
Asterite64.png
300
Titanium64.png
6,000
CubicDiodes64.png
5,000
Time: 0 hrs
Rush: N/A
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A
Railjack Lab Research
Credits64.png
10,000
ControlModule64.png
1
PolymerBundle64.png
2,846
Ferrite64.png
8,138
Salvage64.png
5,157
Time: 72 hrs
Prereq: Mk II
Ghost Clan x1   Shadow Clan x3   Storm Clan x10   Mountain Clan x30   Moon Clan x100

Mk I Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Nullstones64.png
5
Isos64.png
120
CubicDiodes64.png
3,600
Pustrels64.png
2,400
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A

Mk II Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Komms64.png
8
Kesslers64.png
315
Copernics64.png
7,000
Carbides64.png
5,600
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A

Mk III Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Bracoid64.png
16
Asterite64.png
1,440
Titanium64.png
12,000
Copernics64.png
10,400
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A

Mk I Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
AucruxCapacitors64.png
5
Isos64.png
120
CubicDiodes64.png
3,600
Pustrels64.png
2,400
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A

Mk II Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Komms64.png
8
GallosRods64.png
315
Copernics64.png
7,000
Carbides64.png
5,600
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A

Mk III Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Fresnels64.png
16
Asterite64.png
1,440
Titanium64.png
12,000
CubicDiodes64.png
10,400
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A

Mk I Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Nullstones64.png
8
Isos64.png
150
CubicDiodes64.png
4,500
Pustrels64.png
3,000
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A

Mk II Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Komms64.png
11
Kesslers64.png
390
Copernics64.png
8,750
Carbides64.png
7,000
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A

Mk III Shield Arrays, Engines and Reactors

Manufacturing Requirements
Credits64.png
15,000
Fresnels64.png
20
Trachons64.png
1,800
Titanium64.png
15,000
Pustrels64.png
8,125
Time: 12 hrs
Rush: Platinum64.png 20
MarketIcon.png Market Price: N/A Blueprint2.svg Blueprints Price: N/A