R143 (New York City Subway car) Totally Explained

Everything about R143 New York City Subway Car totally explained

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 per car. The new design was based on the A Division's R142A, which Kawasaki also built, According to Kawasaki, the test was "extremely successful".
R143s began running on the BMT Canarsie Line (L) on February 12, 2002, and all 212 cars were delivered to the subway by March 2003. In addition to the L, where the R143s displaced the older R40 and most of R42 cars (External Link

), they also displaced the R42s on the M weekend shuttle service on the BMT Myrtle Avenue Line. The R143s on that line were replaced by R160A-1s in February 2008. One-Person Train Operation was tested on the L during mid-2005..
The 212 cars delivered were expected to provide enough service for years, but the fast growth of Williamsburg, Brooklyn overloaded the L by mid-2006.
On June 21, 2006, an eight-car R143 train overshot the bumper at the end of the tracks in the Canarsie Railyard after the operator suffered a seizure. Lead car #8277 suffered frame damage and is being stripped of parts for possible repair, but may be permanently out of service.

Specifications

R143s are used in eight-car ABBAABBA trains. They have the following specifications:

Capacity: 42 seated and 198 standing for A cars; 44 seated and 202 standing for B cars
Car body: stainless steel with fiberglass front and rear bonnets.
Length: 60 ft 2.5 in (18.35 m)
Width: 9 ft 9.28 in (2.98 m)
Height: 12 ft 0.3 in (3.67 m)
Weight: 83,700 lbs (37,965.6 kg) for A cars; 81,900 lbs (37,149 kg) for B cars
Maximum speed: 55 mph (90 km/h)
Brakes: Dynamic braking propulsion system; WABCO friction braking system
Acceleration: 2.5 mph/s (1.1 m/s^2)
Doorway dimensions: 6 ft 3 in (1.9 m) high; 4 ft 2 in (1.3 m) wide
Traction motor: Bombardier 1508C; 150 HP (112 kW)

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