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CHAP   1 - Introduction
CHAP 2 - Some Basic Specs
CHAP   3 - Locations of Major Equipment
CHAP   4 - the "TRACS" Computer System
CHAP   5 - the High Voltage, Auxiliary and Propulsion Systems
CHAP   6 - the Low Voltage Systems and Batteries
CHAP   7 - the Air System
CHAP   8 - the Braking System
CHAP   9 - the Suspension System
CHAP 10 - the Trucks
CHAP 11 - the HVAC Units
CHAP 12 - the PA and Intercom System
CHAP 13 - the Pantographs
CHAP 14 - the Doors
CHAP 15 - the Couplers
CHAP 16 - the Lighting System
CHAP 17 - the Destination Signs
CHAP 18 - Winterization
CHAP 19 - Operation
CHAP 20 - Maintenance
CHAP 21 - Floobydust

2.1   Here are a few of the basic specifications for the Baltimore LRV:

    Length - 95.5 ft (over coupler faces).
    Width - 9.5 ft.
    Height - 12.5 ft (to top of lowered pantograph).
    Weight - approx 53 tons.
    Truck Centers - 30 ft.
    Minimum turning radius - 100 ft.
    Axle Spacing - 6.5 ft.
    HVAC Capacity - 2 x 8 tons (96,000 BTU) each.
    Motors - 4 x 275 HP each (1100HP total)
    Propulsion Modules - 2ea -- 440VAC/3 phase/800 Amps max output per leg (ABB rates it at 0-585VAC).
    Auxiliary Module - 1ea -- 121/219VAC/3 phase/210 Amps max output per leg (ABB rates it @ 330VAC).
    Battery Charger - 1ea -- 39VDC/210 Amps max (50 Amps max when car is "auxed off").
    Seating - 86 (without wheelchairs).
    Wheelchairs - 4 (each takes away three seats).

2.2   Original manufacturer's of the major sub-systems are as follows:

    Brake System - Knoor (Westminster, MD).
    Trucks - AAI (Cockeysville, MD).
    Body - ABB (Sweden)(For the original 35 cars) / AAI (Cockeysville, MD)(For the additional 19 cars).
    HVAC Units - Transit-Air (Hornell NY).
    Destination Signs - Luminator (Plano TX).
    Lighting - Luminator (Plano TX).
    Pantographs - Transtech (SC)(On the original 35 cars) / Shunk (Replacement pans and OEM on cars 36-53).
    Couplers - Dellner
    PA/Intercom Unit - COMCO (Brooklyn NY).
    Trip Stop System - Siemens (Germany).

2.3   At the time of delivery, the Baltimore cars were the longest and heaviest cars produced.  They were also the first LRV's in America to utilize AC propulsion.  The basic car is articulated and consists of two almost identical sections, "A" and "B".  The "A" end always faces to the south, since there are no loops or wyes on the system.

2.4   As some of you may already know, the Baltimore LRV's are manufactured by ADtranz (formerly known as ABB), in Elmira Heights, NY.  That's about 21 miles east of Corning , and almost due north from Baltimore and Harrisburg.  The ADtranz facility was formerly used as a repair facility for the New York City subway cars, and many of the old trucks can still be seen floating around the factory floor supporting work in progress.

2.5   The cars were designed in Sweden, and I believe the Baltimore order was the first for them in this country (as a complete system, or car).  The only other ABB LRV cars I know of are on the Norristown (PA) line.  A lot of compromises were made in order to meet the 51% made in America policy, most of which have plagued us as maintenance headaches (you never know which hardware or fittings will be SAE or metric, so we have to carry it all around with us).

2.6   Although you won't find a builders plate on the car with a model number on it, most of the documentation ABB put out carries the designation M-244 as the model number for the Baltimore cars.


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New 10/6/2006....
Last Modified Friday, 07 April 2017