Westrail ADP/ADQ class

The Westrail ADP/ADQ class is a class of railcars built by Comeng, Bassendean for Westrail in 1987 to operate the Australind service between Perth and Bunbury. Operation and ownership of the fleet was transferred to Transwa when Westrail was superseded by Transwa in 2003.

Westrail ADP/ADQ class
ADP101 and ADP102 passing through Yarloop in October 2020
Refurbished interior
In service1987–present
ManufacturerComeng
Built atBassendean
Refurbished2003, 2007
Number built5
Number in service4
Formation
  • ADP–ADP
  • ADP–ADQ–ADP
  • ADP–ADQ–ADQ–ADP
Fleet numbers
  • ADP101–103
  • ADQ121–122
Capacity
  • ADP: 38 + 1 Wheelchair
  • ADQ: 58
Operator(s)
Depot(s)Claisebrook railway depot
Line(s) servedSouth Western
Specifications
Train length
  • 2-car: 42.32 m (138 ft 10 in)
  • 3-car: 63.48 m (208 ft 3 in)
  • 4-car: 86.64 m (284 ft 3 in)
Car length21.16 m (69 ft 5 in)
Width2.88 m (9 ft 5 in)
Height4,115 mm (13 ft 6.0 in)
Floor height1,185–1,200 mm (3 ft 10.7 in – 3 ft 11.2 in)
Doors2 per side
Wheel diameter840 mm (33 in)
Wheelbase2.5 m (8 ft 2 in)
Maximum speed
  • 120 km/h (75 mph) (design)
  • 110 km/h (68 mph) (service)
Weight
  • ADP: 48.45 t (47.68 long tons; 53.41 short tons)
  • ADQ: 47.8 t (47.0 long tons; 52.7 short tons)
Prime mover(s)Cummins KAT 19 R @ 350 kW (470 hp)
Power output373 kW (500 hp) @ 2100rpm per engine
TransmissionVoith T 311r w/ KB 260 HD (Hydrodynamic braking disconnected)
Power supply
  • Primary Batteries Type: Lead Acid HD Marine
  • Alternator Voltage: 415 V 50 Hz 3-phase AC +/- 10%
HVACSigma/MR27-MR1 A (1 per car)
BogiesFabricated
Braking system(s)Davies & Netcalf/EBC5 w/ Oerlikon WSP air-actuated disc brakes
Safety system(s)ATP
Coupling systemScharfenberg
Track gauge1,067 mm (3 ft 6 in)

History

In August 1985, Westrail awarded Comeng, Bassendean a contract for five diesel railcars, three ADP carriages with driving cabs and two ADQ trailer carriages, using a similar body shell and interior fitout to the New South Wales XPT carriages.[1] Each carriage was powered by a Cummins KTA19 engine coupled to a Voith transmission. They usually operate as a four carriage set.[2][3]

In July 2003, the railcars were painted in a new livery in line with the formation of Transwa. In 2007, the railcars were painted white as part of a refurbishment program. In 2010-2011 new seats were fitted.[4]

They are scheduled to be replaced by six Alstom built railcars in 2022.[5][6]

References
  1. "Western Australia" Railway Digest September 1985 page 279
  2. May, Andrew S; Gray, Bill (2006). A History of WAGR Passenger Carriages. Midland, WA: Bill Gray. pp. 329–331. ISBN 0646459023.
  3. Dunn, John (2013). Comeng: A History of Commonwealth Engineering. Vol. 5: 1985–1990. Kenthurst, New South Wales: Rosenberg Publishing. pp. 113–122. ISBN 978-1-922013-52-1.
  4. Annual Report June 2011 Public Transport Authority
  5. 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. Retrieved 5 September 2019.
  6. "Alstom to supply next generation of EMUs to Perth". Metro Report International. 20 August 2019.

Media related to Transwa Australind at Wikimedia Commons

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