Changelog

• 2025/11/20 - Added Blue Star jumper cables, so if in a top and tail formation with a loco that uses the Blue Star multiple working system (such as the class 20, 37) the rear loco can be controlled.
• 2025/06/27 - Added ability to control it without a class 66, made some status text updates, some bug fixes.
• 2025/06/14 - First release.

Bugs

(Most of these are with the original DLC, not sure how to fix)
Class 66

• The headlights are sometimes activated on the wrong side, or on a trailing loco.
• The brakes are sometimes cut-in on a trailing loco.

RHTT Wagons

• The Single Tank KFA wagon is missing from the free roam spawn menu.
• If a dual tank w/ pump wagon is coupled to another dual tank w/ pump or single tank wagon the game will crash.
• The dual tank w/ pump wagon has the code and sounds for the generator, despite the generator model being on the dual tank w/ generator wagon.

Class 20

• If you spawn a custom formation with a DRS class 20 and RHTT wagons in free roam, the RHTT controller doesn't work for some reason. Currently you need to spawn the wagons individually and then couple them up.
• If you use a custom formation with a DRS class 20 and RHTT the RHTT controller seems to work fine.
• I don't know whether the RHTT controller will work in a timetable service (for example in a custom timetable), I haven't tested it yet.

Info

Some modifications and fixes to the Rail Head Treatment Train class 66 and KFA wagons.

Class 66:

• Adds a prompt to the engine room doors so you can teleport between them, and walk through the existing corridors (they are narrow and collision may be buggy).
• Added ability to toggle the FRED/EOT devices.
• Added brief instructions on how to turn on the RHTT controller.
• Added ability to see status of the RHTT controller.

KWA Wagons:

• Added ability to climb up and walk around on the platforms on the KFA wagons (collision may not work well at high speed).
• Added ability to teleport to the wagons by using Ctrl - and Ctrl +.
• Added ability to toggle the FRED/EOT devices.
• Added ability to see status of the wagons.
• Added ability to toggle lights (may look a bit buggy in fog).
• Made a few things interactible, such as water regulator valves, brake pipe valves, etc (not animated).
• Renamed the wagons to be informative in formation designer.
• Added ability to control an RHTT formation without a class 66.

How to use manual control

Single Tank Wagon:

• Turn on Control to make the other options appear.
  
• Turn on Generator to allow to you start the Engine.
  
• Turn on Engine, Water Pressure, Left Jet, and Right Jet.
• You can control pressure by using Change Nominal Value, Value Decrease, and Value Increase.

Dual Tank w/ Generator & Dual Tank w/Pump:

• Turn on Control on the Dual Tank w/Pump wagon (the one with a central module and two tanks either end).
  
• Turn on Generator on the Dual Tank w/Generator wagon (the one with a generator module at one and and two tanks) to allow you to start the Engine.
  
• Turn on Engine, Water Pressure, Left Jet, and Right Jet on the Dual Tank w/Pump wagon.
• You can control pressure by using Change Nominal Value, Value Decrease, and Value Increase on the Dual Tank w/Pump wagon.

Triple Tank Wagon:

• Only has water tanks.

Notes

• The RVD, RVM and RVV files of the class 66 and the KFA wagons from the RHTT DLC are modified, so the mod may not be compatible with any other mods that modify the same files.
• The DRS class 20 does not currently substitute into any of the services.

Tags: class-66 kfa rail-head-treatment-train rhtt transition