Front:
TYPES OF STEAM LOCOMOTIVES
10101010
101010
0100 1010
2000....
MOUNTAIN 4.8-2 (1910)
AMERICAN 4.4.0 (1848)
ATLANTIC 4.4.2 (1896)
TOI00102
Tolol
Jotor
MOGUL 2-6-0 (1850)
100 _ _
BERKSHIRE. 2-8-4 (1925)
PRAIRIE 2-6-2 (1896)
7-
TOTOO
TOTO
OD
TEN-WHEELER 4-6-0 (1860)
MIKADO 2-8-2 (1900)
TEXAS 2-10-4 (1925)
JO10101
10101
p1001010,
CONSOLIDATION 2-8-0 (1870)
PACIFIC 4-6-2 (1902)
HUDSON 4-6-4 (1927)
JOI0010
...2000.:
01010 010100
NORTHERN 4-8-4 (1927)
TWO-TRUCK SHAY (1883)
SWITCHER 0-6-0 (1902)
ololo
201010)
...
ototo701010
10...
.. 1L._000_000_..
ARTICULATED 2-6-6-2 (1906)
DECAPOD 2-10-0 (1890)
CHALLENGER 4.6-6-4 (1936)
Back:
WHYTE’S CLASSIFICATION SYSTEM
Whyte’s Classification System for distinguishing locomotive types by their wheel
arrangements was devised in 1900 by Frederic M. Whyte, a New York Central
official. Whyte divided engine wheels into three groups: pony- or leading-truck
wheels, driving wheels (usually the largest), and trailing-truck wheels. The last-
named were placed under the cab. A Mogul, for example, has two pony-truck
wheels, six drivers, and no other wheels—hence it is a 2-6-0. Whyte’s system,
though ingenious, does not indicate the presence or absence of a booster, the small
reciprocating steam engine sometimes fastened to trailing-truck wheels to supply
extra starting power. These diagrams show the best-known steam locomotive
wheel arrangements. A complete all-time list would include about seventy dif-
ferent types.
