Transwa ADR/ADS class
| Transwa ADR/ADS class | |
|---|---|
 Australind set 04 at Harvey station | |
| Stock type | Diesel-hydraulic multiple unit |
| In service | 2026–present |
| Manufacturer | Alstom |
| Built at | Sri City, India and Bellevue, Western Australia |
| Replaced | ADP/ADQ class |
| Constructed | 2022–2025 |
| Entered service | 29 June 2026 |
| Number built | 12 carriages (4 sets) |
| Number in service | 6 carriages (2 sets) |
| Formation | ADR–ADS–ADR |
| Fleet numbers |
|
| Capacity |
|
| Operator | Transwa |
| Depots | Claisebrook Railcar Depot, Bellevue Railway Depot, Picton Yard |
| Line served | South Western Railway |
| Specifications | |
| Car body construction | Stainless steel |
| Train length | 72.49 m (237 ft 10 in) |
| Car length |
|
| Width | 2.86 m (9 ft 5 in) |
| Height | 3,878 mm (12 ft 8.7 in) |
| Floor height | 1,205 mm (3 ft 11.4 in) |
| Doors | 1 per side of car |
| Wheel diameter | 850 mm (33 in) |
| Wheelbase | 2,400 mm (7 ft 10 in) |
| Maximum speed |
|
| Weight |
|
| Prime mover | Voith R2876T3-390 (MAN D2876LUE631) horizontal R6 diesel engine |
| Power output | 390 kW (520 hp) |
| Transmission | Hydrodynamic turbo transmission via cardan shaft |
| Gearbox | Voith SK 485 |
| Power supply |
|
| HVAC | 1 per car |
| Bogies | Fabricated |
| Braking systems | Electro pneumatic (friction) and hydrodynamic brakes |
| Safety system | ATP |
| Coupling system | Dellner |
| Track gauge | 1,067 mm (3 ft 6 in) |
| Notes/references | |
The Transwa ADR/ADS class is a class of 3-car diesel multiple units built by Alstom in Bellevue, Western Australia for the Public Transport Authority to operate the Australind service between Perth and Bunbury.
Design
Each set features an onboard buffet, improved accessibility over its predecessor, in-seat USB charging, LED lighting and 14 bicycle storage spaces.
Each new train will also feature unique Aboriginal artwork from a local Indigenous artist, giving each train a distinct identity.
History
In December 2019, the Public Transport Authority signed a contract with Alstom to deliver 41 6-car C Series EMUs and two 3-car like-for-like replacements for the life-expired ADP/ADQ Class Australind railcars. In January 2025, the order was doubled to four 3-car DMUs.
The ADR/ADS railcars share similar features to the C Series EMUs, both cosmetically and electrically. They operate in semi-permanently coupled 3-car sets. Each car is powered by a Voith R2876T3-390 (MAN D2876LUE631) horizontal R6 diesel engine via a cardan shaft to a single axle.[citation needed]
The first railcar left the Alstom Manufacturing and Assembly Facility at Bellevue on 26 September 2025 and testing commenced at Cardup on 30 September 2025. High-speed testing between Mandurah and Rockingham was undertaken from November 2025.[citation needed] Testing on the Arc Infrastructure network commenced on 23 February 2026 with the first run to Bunbury on 4 March 2026.
A new orange livery was unveiled to the public on 27 March 2026. Names for the four railcars: Marley, Kwilena, Koombana and Linda, were revealed on 18 June 2026 following a public competition. The chosen names relate to the Bunbury region:
- Marley, named after a dingo that took up residence at Bunbury Port
- Kwilena, the Noongar word for dolphin
- Koombana, named after Koombana Bay, north of Bunbury
- Linda, the nickname for the Australind by local train enthusiasts
A community event to mark the resumption of the Australind service was held at Bunbury Terminal on 28 June 2026. The railcars commenced passenger service on 29 June 2026, beginning with one new railcar, Marley, being used on the route at launch with the rest coming online in the following months.
References
- ↑ "Full Australind train services to return next week | Western Australian Government". www.wa.gov.au. Retrieved 6 October 2026.
- ↑ "Tenders WA | Display Tender PTA210007". www.tenders.wa.gov.au. Retrieved 6 October 2026.
- 1 2 3 "Australind train service set to return between Perth and Bunbury | Western Australian Government". www.wa.gov.au. Retrieved 22 April 2026.
- ↑ Minister for Transport (18 August 2019). "Made in WA: Metronet railcars to be proudly built in WA". Archived from the original on 5 September 2019.
- ↑ "Alstom to supply next generation of EMUs to Perth". Metro Report International. 20 August 2019. Archived from the original on 3 September 2019.
- ↑ "New Australind Railcar Design Unveiled". Railway-News. 23 January 2020. Archived from the original on 11 April 2022. Retrieved 11 April 2022.
- ↑ Cook Labor Government (23 January 2025). "Major boost for Bunbury and Peel region with Government to procure two more Australind trains".
{{cite web}}: CS1 maint: url-status (link) - ↑ "First Test Run to Bunbury". Facebook. 4 March 2026.
{{cite web}}: CS1 maint: url-status (link) - ↑ "First look at your new Australind!". Facebook. 27 March 2026.
{{cite web}}: CS1 maint: url-status (link) - ↑ "Four new Australind train names revealed ahead of service's resumption". Perth is OK!. 18 June 2026.
{{cite web}}: CS1 maint: url-status (link)
External links
Media related to Transwa ADR/ADS class at Wikimedia Commons