Mark 4 (Iarnród Éireann)

Mark 4
CAF DVT at Colbert Station, Limerick, 2006
In service	2007-
Manufacturer	CAF
Family name	Mark 4
Number built	7 trainsets (building)
Formation	8 car trainsets
Capacity	493
Operator	Irish Rail
Specifications
Maximum speed	125 mph (201 km/h)
Engine(s)	Twin MAN 2846 LE 202 (320 kW)
Gauge	1,600 mm (5 ft 3 in) Irish Gauge See Rail gauge in Ireland

The CAF Mark 4 (or MK4 or MKIV) are trains operated by Iarnród Éireann in the Republic of Ireland on the InterCity ^[1] service from Dublin to Cork. These trains have no connection to the BR Mk 4.

Contents 1 Description 2 Main Features 3 Mark 4 DVT 4 Performance 5 Replacement Stock 6 References

Description

67 Mark 4 coaches were manufactured in 2004-5^[2] by CAF and delivered in 2006. The designs for the interior of the carriages and the exterior styling of the DVT were produced for CAF by Design Triangle.^[3]

Capable of 10-car operation, each in-service set currently comprises 8 cars:

• Generator Control Car - GC (or DVT)
• One First Class - FC
• One Catering Car - CC
• Four Standard Class - SC
• One Standard End - SCE, with retractable buffers & drop-head buckeye coupling at locomotive end.

Seating capacity is 493 (8-car set) and the train is fully accessible to mobility-impaired customers.

Main Features

The Standard Class carriages have improved passenger seating and leg room. They also have electronic visual and audible passenger information systems, electronic seat reservation displays, CCTV, air conditioning and additional space for luggage. Power points sockets are supplied on all Standard Class coaches. Premier Class cars have ergonomic, electronically adjustable seats, adjacent power points, multi-channel ear phone jack sockets and individual overhead lighting.^[4]

Main features include:

• Merak HVAC[1]
• Power operated passenger doors
• Fire resistance to BS 6553:1999 Cat 1B
• Public address (PA) including automated announcements in Irish and English
• Closed-circuit television (CCTV) recording, including a forward-facing camera in the DVT
• LED Exterior & Interior Destination signs
• Seat Reservation system with reserved seating LED displays above each passenger seat. System is updated via Wireless LAN (W-LAN)
• LED Route Maps
• In-seat audio in First Class
• Power operated seating in First Class
• Suspension:
  • Primary coil springs & secondary air bags
• Sanding on leading axle of GC & trailing axle of SCE cars
• Scharfenberg coupler between cars, drop-head buckeye couplers each end
• Wheelchair area & accessible toilets to UK Rail Vehicle Accessibility Regulations

Key dimensions:

• Length between couplers - 23.66 m (77 ft 7.5 in)
• Height - 3.85 m (12 ft 7.5 in)
• Width - 2.85 m (9 ft 4 in)

Mark 4 DVT

• Air-conditioned driver's cab
• Fault Diagnostic system, displayed on driver's monitor
• Luggage Compartment
• Fire Suppression System
  • Generator engine compartment protected by FM200 extinguisher
  • Fuel tank protected by AFFF extinguisher
• Generators:
  • Twin MAN 2846 LE 202 (320 kW) / Letag (330kVA) engine / generator sets, assembled by GESAN
• Length between couplers - 23.81 m (78 ft)

Performance

Though capable of 200 km/h (125 mph) operation, this higher speed would require both track & signal system upgrade and the provision of a faster locomotive than the currently used 201 class. A possibility being considered is the replacement of the existing 201 with two power cars, one of which would be converted from the existing Generator Control Car.

Replacement Stock

As of January '07, seven sets now operate the Dublin-Cork route on an enhanced hourly clockface timetable. The existing Mark 3 carriages have replaced the older (and tired looking) Mark 2 carriages that previously operated mid-day Limerick, Galway and Waterford routes. The Mark 3s will be in turn be superseded by the new batch of 183 Class 22000 by 2008. The first batch of these have been delivered in early March '07.Also It Is Avalible To download On openbve

References