Baldwin RS-12

Infobox Locomotive
name = Baldwin RS-12
powertype = Diesel-electric


caption =Baldwin model RS-12 diesel-electric locomotive as delivered to the Seaboard Air Line Railroad.
serviceclass = cab
service = Road Switcher
builder = Baldwin Lima Hamilton Corporation
gauge = RailGauge|ussg|lk=on
aarwheels = B-B
serialnumber =
builddate = 1950–1956
totalproduction = 50
poweroutput = convert|1200|hp|kW|0|abbr=on
topspeed = "18:74 gear ratio:" convert|65|mph|abbr=on;
"18:65 gear ratio:" convert|75|mph|abbr=on
weight = convert|232000|lb|t|abbr=on
tractive effort =
length = convert|58|ft|6|in|m|2|abbr=on
width = convert|10|ft|0|in|m|2|abbr=on
height = convert|14|ft|0|in|m|2|abbr=on
fuelc
convert|900|usgal|abbr=on
oilc
convert|160|usgal|abbr=on
coolantc
convert|250|usgal|abbr=on
sandc
convert|30|cuft|abbr=on
primemover = Baldwin 606A
cylindercount = Inline 6
enginetype = 4diesel
aspiration = Turbocharged
cylindersize = 12¾ in x 15½ in (324 mm x 394 mm)
displacement = convert|11874|cuin|abbr=on
transmission = DC generator,
DC traction motors
locobrakes = Straight air
trainbrakes = 6-SL, or 24-RL
buildmodel = RS-12
railroad =
roadnumber = The Baldwin RS-12 railroad locomotive was a 1,200 hp (895 kW) diesel-electric road-switcher configured with an AAR type B-B wheel arrangement. It was the follow-on model to the 1,000 hp DRS-4-4-1000, first introduced in 1948. It was more successful than its predecessor selling 50 units to eight railroads, versus 22 units to three railroads. Only one railroad, The Pennsylvania Railroad bought both models.

When Baldwin Locomotive Works merged with Lima-Hamilton the combination Baldwin-Lima-Hamilton decided to concentrate locomotive production at Baldwin's Eddystone, Pennsylvania plant. There was still one outstanding order for Lima LRS-1200s, but the customer, New York Central Railroad agreed to receive RS-12s instead.

The locomotive could be ordered with either a steam generator for steam heat, or dynamic brakes contained within the short hood. Of the 50 units built, only 2 were ordered with dynamic brakes (McCloud River Railroad No. 32 and 33)

Original buyers

ources

* cite book
last = Kirkland
first = John F.
title = The Diesel Builders Volume 1: Fairbanks-Morse and Lima-Hamilton
year = 1985
month = November
publisher = Interurban Press
isbn = 0916374696
* cite book
last = Kirkland
first = John F.
title = The Diesel Builders volume 3: Baldwin Locomotive Works
year = 1994
month = November
publisher = Interurban Press
isbn = 0916374939
* cite book
last =
first =
title = Diesel Engine Manual DE-111 for 600 series engines, Manual DE-111
year = 1951
month = June
publisher = Baldwin Lima Hamilton Corp.
isbn =
* cite book
last =
first =
title = Operator's Manual for Standard 1200-HP Diesel Electric Switching Locomotives, Manual S-120
year = 1956
month = March
publisher = Baldwin Lima Hamilton Corp.
isbn =