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EM-Rail Ejector

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Production Facility

Launch a large amount of solar sails into the orbit of a star to form a Dyson Swarm.

Eject Speed		20/min
Work Consumption		1.80 MW
Idle Consumption		60.0 kW
Made In		Assembler
Hand-Make		Replicator
Stack Size		30

1

6 s

20

5

10

Summary

The EM-Rail Ejector is used to propel Solar Sails into an orbit around a star to form a Dyson swarm.

In order to launch a Solar Sail, the EM-Rail Ejector must have direct line of sight to the point the Solar Sail will occupy in the swarm. Therefore, players usually construct EM-Rail Ejectors at the poles of the planet, to ensure continuous operation.

Required Technology

Production Chain

Recipe	Building	Replicator?	Technology
1 6 s 20 20 5 10		✔

Total Raw Materials

330

60

40

20

Player Tips & Tricks

The pitch angle (vertical angle) must be between 5 degrees and 60 degrees to allow firing. When the pitch angle is outside these ranges, the EM-Rail Ejector glows orange instead of blue, and the "Target Status" info will read "Pitch limit" instead of "Active".
Additionally, the line of sight to the targeted Solar Sail position cannot be blocked by a celestial body (which may commonly occur on satellites of gas giants).
A sorter can take excess Solar Sails from the EM-Rail Ejector so that they can be fed into another Rail Ejector, either via a conveyor belt or directly.
Railguns build on the poles have the highest uptime if the correct orbit is selected. Its usually sufficient to tilt the orbit to 180° (or the inverse) and select an orbit that fits the planetary distance to the star- closer planets require smaller orbits, while planets further away require medium-large orbits. To understand what makes a orbit valid see the picture to the right- the trajectory requires direct line of sight, and the entry point needs to be in the right direction of rotation. If set correctly, such an setup will fire for up to half a year nonstop (planet completing half an orbit around the star).
Railguns can fire 20 Solar Sails per minute, up to 40 when proliferated. Each node in a Dyson Sphere can absorb up to 360 solar sails / min with fully upgraded Solar Sail Attaching Speed. This equals 18 ( or nine proliferated) continuously firing EM-Rail Ejectors per node. Given the average node count of spheres, a player will run out of building space before maximum sail absorption for all nodes can be reached.

Prior to Patch 0.6.15.5636, the recipe was:

Recipe	Building	Replicator?	Technology
1 6 s 20 20 5 20		✔

@@ Line 1: / Line 1: @@
-{{Stub}}
 <div style="float: right; clear: right;">
 {{:{{PAGENAME}}/ItemInfo}}
@@ Line 5: / Line 4: @@
 ==Summary==
-An [[EM-Rail Ejector]] is used to propel [[Solar_Sail|Solar Sails]] into an orbit around a star to form a [[Dyson_Sphere#The_Dyson_Swarm| Dyson Swarm]].
+The EM-Rail Ejector is used to propel [[Solar_Sail|Solar Sails]] into an orbit around a star to form a[[Dyson_Sphere#The_Dyson_Swarm| Dyson swarm]].
-The [[EM-Rail Ejector]] must have a direct line of sight to the injection point on the dyson sphere orbit in order to work. Therefore, players usually construct [[EM-Rail Ejector|EM-Rail Ejectors]] at the poles of
+In order to launch a Solar Sail, the EM-Rail Ejector must have direct line of sight to the point the Solar Sail will occupy in the swarm. Therefore, players usually construct EM-Rail Ejectors at the poles of the planet, to ensure continuous operation.
-a planet, to ensure continuous operation.
 ==Required Technology==
 ==Production Chain==
+{{ProductionChainTable/head}}
+{{ProductionChain
+|Building=Assembler
+|Replicator=Yes
+|Technology=Solar Sail Orbit System
+|Recipe=
+  {{ItemRecipe
+    |Out1=EM-Rail Ejector
+    |Out1Qty=1
+    |CraftTime=6 s
+    |In1=Steel
+    |In1Qty=20
+    |In2=Gear
+    |In2Qty=20
+    |In3=Processor
+    |In3Qty=5
+    |In4=Super-Magnetic Ring
+    |In4Qty=10
+    }}
+  }}
+|}
+==Total Raw Materials==
-# To construct n=1 EM-Rail Ejector requires the following raw components:  Iron Ore = 330, Copper Ore = 60, Silicon Ore = 40, Coal = 20
+{|
+|{{RecipeItem|ItemName=Iron Ore|ItemCount=330}}
+|{{RecipeItem|ItemName=Copper Ore|ItemCount=60}}
+|{{RecipeItem|ItemName=Silicon Ore|ItemCount=40}}
+|{{RecipeItem|ItemName=Coal|ItemCount=20}}
+|}
+[[File:Solar Sail Launch Mechanics.png|thumb|418x418px]]
-==Player Tips & Tricks==
+==Player Tips & Tricks ==
+* The pitch angle (vertical angle) must be between 5 degrees and 60 degrees to allow firing. When the pitch angle is outside these ranges, the EM-Rail Ejector glows orange instead of blue, and the "Target Status" info will read "{{glow|Pitch limit}}" instead of "Active".
-# The minimum pitch angle to allow firing is +5 degrees.
-# The vector towards the targeted solar orbit must not be blocked by any celestial bodies (i.e. moons orbiting Gas giants get blocked often).
+* Additionally, the line of sight to the targeted Solar Sail position cannot be blocked by a celestial body (which may commonly occur on satellites of gas giants).
+* A sorter can take excess Solar Sails from the EM-Rail Ejector so that they can be fed into another Rail Ejector, either via a conveyor belt or directly.
+* Railguns build on the poles have the highest uptime if the correct orbit is selected. Its usually sufficient to tilt the orbit to 180° (or the inverse) and select an orbit that fits the planetary distance to the star- closer planets require smaller orbits, while planets further away require medium-large orbits. To understand what makes a orbit valid see the picture to the right- the trajectory requires direct line of sight, and the entry point needs to be in the right direction of rotation. If set correctly, such an setup will fire for up to half a year nonstop (planet completing half an orbit around the star).
-==Historical==
+* Railguns can fire 20 Solar Sails per minute, up to 40 when [[Proliferator Mk.III|proliferated]].  Each node in a Dyson Sphere can absorb up to 360 solar sails / min with fully upgraded {{glow|Solar Sail Attaching Speed}}.  This equals 18 ( or nine proliferated)  continuously firing  EM-Rail Ejectors per node. Given the average node count of spheres, a player will run out of building space before maximum sail absorption for all nodes can be reached.
-Prior to patch 0.6.15.5636, the recipe was
+Prior to [[Patch Notes/0.6.15.5636|Patch 0.6.15.5636]], the recipe was:
-{{ItemRecipe
+{{ProductionChainTable/head}}
-|Out1=EM-Rail Ejector
+{{ProductionChain
-|Out1Qty=1
+|Building=Assembler
-|CraftTime=6 s
+|Replicator=Yes
-|In1=Steel
+|Technology=Solar Sail Orbit System
-|In1Qty=20
+|Recipe=
-|In2=Gear
+  {{ItemRecipe
-|In2Qty=20
+    |Out1=EM-Rail Ejector
-|In3=Processor
+    |Out1Qty=1
-|In3Qty=5
+    |CraftTime=6 s
-|In4=Super-Magnetic Ring
+    |In1=Steel
-|In4Qty=20
+    |In1Qty=20
-}}
+    |In2=Gear
+    |In2Qty=20
+    |In3=Processor
+    |In3Qty=5
+    |In4=Super-Magnetic Ring
+    |In4Qty=20
+    }}
+  }}
+|}
+{{Item Navbox}}
 [[Category:Item]]
 [[Category:Building]]