DCC Locomotive Control,
Reimagined.

Vector brings prototype-inspired locomotive control stands to your phone or tablet, with distinct Diesel, Switcher, Steam, and Slider layouts—plus dedicated cab controls and Vector Simulated Throttle response.

Android · WiThrottle Compatible · Available on Google Play

Precision Locomotive Control

A WiThrottle throttle that fits the locomotive you run — not one generic slider handed to every engine on the roster.

Control that fits the locomotive

Most throttle apps give every locomotive the same slider. Vector gives you a control stand built around the one you’re running: an eight-notch throttle, dynamic brake and air brake for a road diesel; a lever with a true neutral for a switcher; regulator, cutoff and separate forward and reverse for steam. Each stand puts that locomotive’s own controls and gauges in front of you, so you drive it the way its crew would. Prefer a conventional throttle? Slider keeps speed, direction and functions on one simple screen. Diesel and Switcher stands come in V-Night, Vintage or Modern themes, with digital or analog instruments.

Momentum your way

Momentum is what makes a control stand feel like a train instead of a volume knob. With VST — Vector Simulated Throttle — Vector manages it for you: notch up and the speed builds, set the brake and it comes down, with the train load you choose deciding how quickly. If your decoders already have momentum programmed, choose Decoder and Vector leaves it to them. Set it once for every locomotive, or per locomotive in the roster.

Your roster. Built in.

Add a locomotive once and every control stand knows it: address, name, speed cap, momentum, and a label for each function key so HORN reads HORN instead of F2. Import the roster you already keep in JMRI or on a DCC-EX command station, back it up, and share it with another phone or tablet.

One app, four ways to run

CHOOSE YOUR CONTROL STAND

A road diesel, a yard switcher and a steam locomotive are not driven the same way, so Vector does not hand you the same screen for all three. Each stand is the set of controls that locomotive actually has — the throttle you notch, the brake you set, the gauges you watch — laid out for a phone or tablet. Pick one to see what you would be working with, then try its themes and instrument styles.

Select a control stand to explore. Diesel and Switcher also offer cab themes and digital or analog displays.

Cab theme

Panel display

Choose a control stand four ways to run

Vector at a glance

Android, phone or tablet

Runs on Android phones and tablets. Every control stand works on both; on a tablet, Slider can drive two locomotives side by side.

WiThrottle compatible

Vector connects over Wi-Fi to WiThrottle servers including JMRI, DCC-EX and Digitrax LNWI. Other DCC systems, including NCE, can connect through JMRI.

Your own Wi-Fi, no internet needed

Vector talks to the command station over your local Wi-Fi. A layout network with no internet connection is all it needs.

Four control stands

Diesel, Switcher, Steam and Slider. Diesel and Switcher offer V-Night, Vintage or Modern themes with digital or analog instruments.

Function control

Headlight, bell and horn on their own keys; F3 upward labelled from the roster, with decoder function lists you can load by manufacturer.

Consists

Build a consist once, save it by name, acquire it with one tap. One throttle, one direction, one brake — every unit follows, including those coupled backwards.

Momentum: VST or decoder

Let Vector simulate momentum and train load, or leave it to your decoders. Set it globally or per locomotive.

Roster, built in or imported

Addresses, names, speed caps and function labels, kept on the phone. Import from JMRI or DCC-EX; back up, restore and share.

No Torus or Fusee required

Vector is a complete throttle on its own. Run Fusee too and control hands back to Vector when a crew activity ends.

Frequently Asked Questions

What is Vector?
Vector is a Wi-Fi locomotive throttle for Android. Instead of one generic slider, it gives you a control stand built around the locomotive you’re driving — Diesel, Switcher, Steam or Slider — with momentum, a roster and consists built in.
What do I need to run it?
An Android phone or tablet on the same Wi-Fi network as your command station. Vector connects over Wi-Fi to WiThrottle servers including JMRI, DCC-EX and Digitrax LNWI. Other DCC systems, including NCE, can connect through JMRI.
Do I need Torus or Fusee to use Vector?
No. Vector is a standalone throttle and does not require Torus Train Ops or Fusee. They are separate Railworks Studio products that can be used independently. If you do run both, they hand off: at the end of a Fusee crew activity, control passes straight back to Vector.
Can I run more than one locomotive?
Yes. Vector drives a saved consist as one train, and on a tablet the Slider control stand can operate two locomotives side by side.
Can I try the controls before I’m at the layout?
Yes. Explore Offline opens every control stand with no command station connected, so you can learn the notches, brakes and function keys before you drive anything real.
Is there a user guide?
Yes. The Vector User Guide covers everything from the first connection to consists, settings and troubleshooting, and you can read it online or download it as a PDF.
Where do I get it?
Vector is on Google Play. Search for Vector by Railworks Studio, or use the Get Vector button on this page.

Android · WiThrottle

The right controls for every locomotive.

Vector is on Google Play. Install it, connect to your layout, and take the controls.

$4.99
Get Vector on Google Play Get it on Google Play

Questions? Contact support@railworksstudio.com — we're happy to help.

Hero photograph: U.S. Air Force / Alex R. Lloyd — public domain. Closing panel — Photo: vxla, CC BY 2.0, via Wikimedia Commons.