R142A (New York City Subway car)

Infobox Train
background =
name = R142A (New York City Subway car)

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imagesize = 250px
caption = An R142A train on the NYCS service|6 line approaches Parkchester in the Bronx.
interior

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interiorcaption = Interior of an R142A car.
InService = 1999-onward

Manufacturer = Kawasaki Rail Car Company
Factory = Yonkers, NY, USA and
Kobe, Hyōgo, JP
Family =
Built =
Refurbishment =
Replaced =

Formation = 5 car sets (2 A cars and 3 B cars)
Designation = 7211-7810
Operator = New York City Subway
Depots = Westchester Yard, Mosholu Yard
LinesServed = NYCS|4, NYCS|6

yearconstruction = 1999-2004
yearservice =
yearscrapped =
numberconstruction =
numberbuilt = 600
numberservice =
numberscrapped =

CarBody = Stainless steel with fiberglass blind end bonnets
CarLength = convert|51.33|ft|m
CarWidth = convert|8.60|ft|m
CarHeight = convert|11.89|ft|m
floorheight =
platformheight =
entrylevelorstep =
art-sections =
doors = 6 per car

MaxSpeed = convert|55|mi/h|km/h
Weight = convert|73300|lb|kg (A car)
convert|67800|lb|kg (B car)
Capacity = 176 (A car)
188 (B car)
Acceleration =
Deceleration =
Traction = Bombardier propulsion system,
3-Phase AC Traction Motors Model 1508C
Engine =
Power = convert|150|hp|kW|3|abbr=on per wheel
Transmission =
Auxiliaries =
Power-supply = 600 VDC third rail
Gauge = RailGauge|sg|al=on|lk=on
Voltage =
Brakes = Dynamic braking propulsion system; WABCO friction braking system
SafetySystem = The R142A, along with the R142 is the newest generation of cars for the New York Subway's IRT division. [ [http://www.ny1.com/ny1/content/index.jsp?&aid=6665&search_result=1&stid=5 "Some New Subway Cars Put Into Service Monday"] NY1 - 10 July 2000. Retrieved on 2008-04-24]

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. Eighty cars, known as the R142S, were built by Kawasaki in 2003-04 to supplement the R142As. They are numbered as 7731-7810. The MTA considers the R142S to be R142A.Fact|date=April 2008

These cars can be found on the NYCS service|4 and NYCS service|6 services.

Differences between the R142 and R142As

*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.
*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 Bombardier AC traction motors.
*B cars have traction motor at number one end [http://nycsubway.org/perl/show?74505 Bottom right of photo] .
*The R142A's cab ends are one piece, while the destination sign area and window section are two separate pieces on the R142.
*The LCD destination signs between the two doors of each side of cars as well as interior LED passenger information signs are different. The LCD destination signs and LED interior passenger information signs on the R142 turn-off when changing, while the ones on the R142A switch without turning off.
*The interior red door indicator lights on R142s are directly above the doors near its corners and point downwards towards the floor while the R142A's interior red door indicator lights are located just to the left and right of the doors and point towards the opposite wall.
*The flashing orange closing door lights are slightly larger on the R142s.
*The car end lexan glass windows open through a few tiny screws on R142s compared to the keyhole on the R142As.
*The trucks on the cars are different. The R142 utilizes Bombardier trucks while the R142A utilizes Kawasaki trucks [http://nycsubway.org/perl/show?47237 R142] [http://nycsubway.org/perl/show?47211 R142A] .
*The two cars have different HVAC systems. The R142's HVAC is noticeably louder.
*The R142A contain extra advertising panels within the car, which the R142 does not have.

References

External links

* [http://www.kawasakirailcar.com/LRTR142A.htm Kawasaki - R142A]
* [http://www.nycsubway.org/cars/r142.html nycsubway.org - NYC Subway Cars: R142]
* [http://www.nyceducated.info/blog/transit/subway-sounds-r-142a/ Educated » Blog Archive » Subway Sounds: R-142A]