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Coupling is the method of connecting rail vehicles together and forming a train. The coupling system in Derail Valley is universally known as “chains and buffers”. Vehicles are kept together by a tightly screwed chain, but held at a distance by shock absorbers known as buffers. Apart from the chain and buffers, there are air hoses between the vehicles. When connected and with their valves open, they form a shared pressurized air vessel throughout the train, as part of the train brake system.
Coupling is the method of connecting {{pll|Rail Vehicle Types|rail vehicles}} together and forming a {{pll|Rail Vehicle Types|train}}. There are a few coupling system types in existence. The one in Derail Valley is universally known as “chains and buffers”. With it, the vehicles are kept together by a tightly screwed chain, but held at a distance by shock absorbers known as buffers. There are also {{pll|Air Brake System Overview|air line hoses}} between the vehicles. When connected and with their valves open, they form a {{pll|Air Brake System Overview|shared compressed air vessel}} throughout the train, as part of the {{pll|Train Brake|train brake}} system.


<b>To couple:<br/></b>1. Bring two vehicles together so that their buffers touch<br/>2. Apply the train brake to prevent any movement<br/>3. Take one of the two chains and place it on the adjacent vehicle's hook<br/>4. Tighten the coupling by turning the chain screw<br/>5. Connect the air hoses together<br/>5a. Connect the MU cables, if applicable<br/>6. Open the brake angle cocks (valves) on both sides<br/>7. Release the handbrake on the coupled vehicle
Some vehicles also come equipped with {{pll|Multiple-Unit|multiple-unit cables}}, which can optionally be connected, too.


<b>To uncouple:<br/></b>1. Stop the train<br/>2. Apply the train brake to prevent any movement<br/>3. Apply the handbrake on the vehicle to be uncoupled<br/>4. Close the brake angle cocks (valves) on both sides<br/>4a. Disconnect the MU cables, if applicable<br/>5. Disconnect the air hoses<br/>6. Loosen the coupling by turning the chain screw<br/>7. Remove the chain from the other vehicle's hook and dock it to its resting place
When coupling at {{pll|Time of Day|night}}, it is recommended to be equipped with a {{pll|Time of Day|light source}}.


When coupling, coming into contact with another vehicle should be done at up to 5 km/h. Going above that speed may cause damage.
Depending on the session {{pll|Difficulty|difficulty settings}}, it is possible to couple and uncouple vehicles remotely, using the {{pll|Remote Controller|locomotive remote controller}}, driving UI, or the external view UI.


For coupling and other operations at night, the driver can use an adequate light source, such as a flashlight or a lantern, or at the very least, the comms radio in LED mode.
Exact procedure for coupling and uncoupling is shown in a quick tutorial, that can be activated in the pause menu.


Depending on the session difficulty settings, it is also possible to couple and uncouple remotely, using the locomotive remote controller, driving UI or the external view UI.
Installing a proximity sensor gadget allows receiving alerts when an obstacle is being approached, which can help speed up coupling maneuvers and avoid collisions, especially with long trains.
{{See also|Rail Vehicle Types|Train Brake|Handbrake|Time of Day|Flashlight|Lantern|Comms Radio LED|Difficulty|Remote Controller|Difficulty}}
[[Category:General Information|3]]
[[Category:General Information|3]]

Latest revision as of 21:48, 17 March 2025

Coupling is the method of connecting rail vehicles together and forming a train . There are a few coupling system types in existence. The one in Derail Valley is universally known as “chains and buffers”. With it, the vehicles are kept together by a tightly screwed chain, but held at a distance by shock absorbers known as buffers. There are also air line hoses between the vehicles. When connected and with their valves open, they form a shared compressed air vessel throughout the train, as part of the train brake system.

Some vehicles also come equipped with multiple-unit cables , which can optionally be connected, too.

When coupling at night , it is recommended to be equipped with a light source .

Depending on the session difficulty settings , it is possible to couple and uncouple vehicles remotely, using the locomotive remote controller , driving UI, or the external view UI.

Exact procedure for coupling and uncoupling is shown in a quick tutorial, that can be activated in the pause menu.