R142A (New York City Subway car)
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The R142A, along with the R142 is the newest generation of cars for the New York Subway's IRT division.
The R142A is built by Kawasaki and has many of the same features as the R142, built by Bombardier. The main order of 400 R142A cars are numbered 7211-7610; the 120 option cars are numbers 7611-7730. These cars can be found on the 4 and 6 services with a few rush hour runs on the 2 and 5 services[1]. While the R142 and R142A are very similar, careful observation reveals some differences. The R142A's external speakers have a narrower rim around the edges than those on the R142. The interior speakers on the R142A are recessed into the curved portion of the ceiling with only lines of pinholes to denote their location while the R142's speakers are located in the midline of the cab on the ceiling and are not concealed. Finally, the R142A's drives have a characteristic sound under acceleration and deceleration that is distinct from that of the R142 because of different AC traction motors. The R142's use Alstom AC traction motors, while the R142A's use Adtranz AC traction motors.
[edit] R-142A "Millennium" specifications
| Car builder | Kawasaki Rail Car Company in Kobe, Japan and Yonkers, NY | |
| Car body | stainless steel | |
| Unit numbers | 7211-7730 | |
| Fleet of | 520 cars | |
| Car dimensions | 51 ft 4 in long 8 ft 73⁄16 in wide 11 ft 105⁄8 in high |
15.65 m long 2.621 m wide 3.623 m high |
| Track, standard gauge | 4 ft 81⁄2 in | 1.435 m |
| Doorway width (side—clear opening) |
4 ft 6 in | 1.37 m |
| Wheel diameter | 34 inches | 864 mm |
| Propulsion system | AdTranz propulsion system (now part of Bombardier Transportation), 3-Phase AC Transition Motors |
|
| Power (4 per car) | 150 horsepower | 112 kW |
| Brakes | Dynamic braking propulsion system; WABCO friction braking system | |
| Average car weight (empty) |
A-car (with cab) : 73,159 lb B-car (without cab): 67,630 lb |
33,184 kg 30,676 kg |
| Maximum speed | from 55 mph to about 65 mph | 90 to 105 km/h Average about 100 km/h |
| Total seated passengers | A car (cab car): 34 B car (no cab): 40 |
|
| Total standees | A car (cab car): 148 B car (no cab): 142 |
|
| Full capacity totals | A car (cab car): 182 passengers B car (no cab): 182 passengers |
|
| Air conditioning system | Two roof-mounted HVAC units each car. | |
| Price per car (new) | US$1,215,466 | |
