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R142A (New York City Subway car)

R142A (New York City Subway car)

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The R142A, along with the R142
R142 (New York City Subway car)
The R142 is the model class of the newest generation of IRT cars for the New York City Subway. Built by Bombardier in Plattsburgh, New York and Barre, Vermont from 1999–2002, the fleet, along with the R142A, are the new backbone of the IRT fleet....

 is the newest generation of cars for the A Division
A Division (New York City Subway)
The A Division, also known as the IRT Division, is a division of the New York City Subway, consisting of the lines operated with services designated by numbers and the 42nd Street Shuttle. These lines and services were operated by the Interborough Rapid Transit Company before the 1940 city takeover...

 of the New York City Subway
New York City Subway
The New York City Subway is a rapid transit system owned by the City of New York and leased to the New York City Transit Authority, a subsidiary agency of the Metropolitan Transportation Authority and also known as MTA New York City Transit...

.

Background


The R142A is built by Kawasaki
Kawasaki Heavy Industries Rolling Stock Company
is the rolling stock production division of Kawasaki Heavy Industries. Since beginning operations in 1906, the company has produced more than 90,000 railroad vehicles.- Products :...

 and has many of the same features as the R142, built by Bombardier
Bombardier Transportation
Bombardier Transportation is the rail equipment division of the Canadian firm, Bombardier Inc. Bombardier Transportation is one of the world's largest companies in the rail-equipment manufacturing and servicing industry. Its headquarters are in Berlin, Germany....

. 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. Note that R142S is not an official designation, just a reference to the Supplemental order of these cars. They are mechanically and physically identical to all other R142As, and therefore it is customary to refer to cars 7731-7810 as R142As.

As of 2010, cars 7211-7670 run on the 6 train
6 (New York City Subway service)
The 6 Lexington Avenue and Pelham Local and Lexington Avenue Local and Pelham Express are two rapid transit services of the New York City Subway. The 6 local has a circle shape while the ' express has a diamond shape...

 and cars 7671-7810 run on the 4 train
4 (New York City Subway service)
The 4 Lexington Avenue Express is a rapid transit service of the New York City Subway. It is colored green on station signs, route signs, and the official subway map, since it uses the IRT Lexington Avenue Line in Manhattan....

. Ten R142As (2 sets) have been taken out of service to be retrofitted with Communications-Based Train Control (CBTC) as a prototype for the future R188
R188 (New York City Subway car)
The R188 is a future A division car for the New York City Subway. The MTA is planning to displace the R62As from the train with these cars.-Background:...

s while ten more R142As (cars 7271-7275 & 7506-7510) have been taken out of service and are currently undergoing testing on the 7 train
7 (New York City Subway service)
The 7 Flushing Local and 7 Flushing Express are rapid transit services of the New York City Subway, providing local and express services along the full length of the IRT Flushing Line...

.

Differences between the R142 and R142As

  • The R142A's external speakers have a narrower rim around the edges than those on the R142, and would later apply to the R143 and the R160 models.
  • 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
    Alternating current
    In alternating current the movement of electric charge periodically reverses direction. In direct current , the flow of electric charge is only in one direction....

     traction motor
    Traction motor
    Traction motor refers to an electric motor providing the primary rotational torque of a machine, usually for conversion into linear motion ....

    s. The R142's use Alstom
    Alstom
    Alstom is a large multinational conglomerate which holds interests in the power generation and transport markets. According to the company website, in the years 2010-2011 Alstom had annual sales of over €20.9 billion, and employed more than 85,000 people in 70 countries. Alstom's headquarters are...

     AC traction motors, which are very similar to the ones used on the R160A cars and some of the R160B cars, while the R142A's use Bombardier
    Bombardier Transportation
    Bombardier Transportation is the rail equipment division of the Canadian firm, Bombardier Inc. Bombardier Transportation is one of the world's largest companies in the rail-equipment manufacturing and servicing industry. Its headquarters are in Berlin, Germany....

     AC traction motors which are identical to the ones used on the R143
    R143 (New York City Subway car)
    The R143 is a standard gauge subway car design used on the B Division of the New York City Subway in the United States. The cars are primarily used on the L service. The New York City Transit Authority owns 212 R143 cars, numbered 8101 to 8312, and built for an average cost of about $1.5 million...

    cars.
  • B cars have traction motor at number one end.
  • 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.
  • R142 cars have a dot-matrix LCD route number display and mosaic LCD destination on the side destination signs, while R-142A cars have a mosaic LCD for both the route and destination on the side destination signs.
  • 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.
  • 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.
  • The Front Windows on the R142s are a little more curvy than while the R142As have square-like curves.
  • The windows on the front doors of the R142As are smaller than those on the front doors of the R142s.
  • The door handles on the car end doors leading from one car to another are different on the R142s and R142As.




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