3200-series (CTA)

The 3200-series (numbered 3201–3457) is a series of 'L' cars built between 1992 and 1994 by Morrison-Knudsen of Hornell, New York, with body shells built by Brazilian subcontractor Mafersa.[1] A total of 257 cars were built, of which 255 remain in service.

3200-series
3200-series cars on the Brown Line pre-rehab
In service	1992–present
Manufacturer	Morrison-Knudsen
Built at	Morrison-Knudsen Plant, Hornell, New York
Family name	High Performance
Replaced	6000-series
Constructed	1992–1994
Entered service	1992
Refurbished	2015–2018, Skokie Shops, Skokie, Illinois
Number built	257
Number in service	255
Number scrapped	2
Successor	7000-series (if all options included)
Formation	Married pair
Fleet numbers	3201–3457
Capacity	39 seated (35 seated cars 3321-26)
Operator(s)	Chicago Transit Authority
Depot(s)	Desplaines Yard Kimball Yard Rosemont Yard
Line(s) served	Blue Line      Brown Line
Specifications
Car body construction	Stainless steel with fiberglass end bonnets
Car length	48 ft (14.63 m)
Width	9 ft 4 in (2.84 m)
Height	12 ft (3.66 m)
Doors	4 per car
Maximum speed	Design: 70 mph (110 km/h) Service: 55 mph (89 km/h)
Weight	54,290 lb (24,630 kg)
Traction motors	4 × GE 1262A4 110 hp (82 kW) DC motor
Power output	440 hp (330 kW)
Electric system(s)	Third rail, 600 V DC
Current collector(s)	Contact shoe
Braking system(s)	Regenerative and disc brakes
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge

The 3200-series was the last of five series of Chicago "L" cars known as the High Performance Family and the last railcars ordered for the Chicago Transit Authority that use direct current motors. All subsequent train orders are using alternating current motors.

The original order for 256 cars was used for the opening of the Orange Line, which needed new cars when it opened in October 1993.[2] The order was completed in 1994.[3] The 3200-series contains many innovations over the previous 2600-series, including solid state computerized (microprocessor) control for much of the cab functions and traction system. Diagnostics are also easier to perform on this series than on previous series. In addition, fluted steel siding is included on these cars for the first time since the 2200-series, in order to reduce graffiti. The series also introduced hopper windows for use in case of air conditioner failure.[3]

Cars 3441-3456 were originally equipped with pantographs for use on the Yellow Line, which was powered by overhead lines until 2004. The pantographs on 3451-3456 were removed in the late 1990s when they were reassigned to supplement the Brown Line, while the rest lost their pantographs when the Yellow Line was converted to third rail power in 2004.[3]

Car 3457 was an additional car built for the purpose of serving as a mate to the 2600-series car 3032, after its mate 3031 had been damaged from a derailment at Wilson on March 15, 1988. 3032 was renumbered 3458. The pair currently runs on the Brown Line,[4] which is currently equipped with both 2600-series and 3200-series cars.

The 3200-series cars are currently assigned to the Blue and Brown Lines. At various points during their service life a small number were also assigned to the Yellow and Purple Lines. In late 2018, some of the 3200-series cars were reassigned from the Brown and Orange Lines to the Blue Line, with the 2600-series cars from the Blue Line replacing some 3200-series cars from the Orange Line. These cars entered service on the Blue Line on September 17, 2018, and were removed from service from the Orange Line in October 2018.