PRR 3936 and 3937
Encyclopedia
PRR 3936 and 3937, formerly 4781 and 4780 respectively, are a pair of DD1
-class electric locomotive
s located in the Railroad Museum of Pennsylvania
in Strasburg, Pennsylvania
. The two locomotives are semi-permanently coupled together and were assigned an EZN of 36. 3936 and 3937 are only surviving locomotives of its class and were listed on the National Register of Historic Places
in 1979.
between New Jersey
and New York City
. The DD1 consisted of, essentially, two 4-4-0
locomotives coupled back-to-back and were never run separately. Each pair, in addition to individual serial numbers, was also assigned an "Electrofied Zone Number" (EZN) to simplify the dispatching and keeping of mechanical records of the locomotives.
3936 and 3937 were built in 1911. They were shifted from mainline passenger duty in 1924 when the L5
was introduced, but would still haul the empty passenger trains from Penn Station
to the Sunnyside Yard
. 3936 and 3937 were donated to the Railroad Museum of Pennsylvania
in Strasburg, Pennsylvania
, by the Pennsylvania's successor Penn Central, in December 1979. Both locomotives were jointly listed on the National Register of Historic Places
on December 17, 1979.
PRR DD1
The Pennsylvania Railroad's class DD1 were semi-permanently coupled pairs of third rail direct current electric locomotives built for the railroad's initial New York-area electrification. They operated between Manhattan Transfer and Pennsylvania Station in New York City, and from there to the...
-class electric locomotive
Electric locomotive
An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or an on-board energy storage device...
s located in the Railroad Museum of Pennsylvania
Railroad Museum of Pennsylvania
The Railroad Museum of Pennsylvania is a railroad museum in Strasburg, Lancaster County, Pennsylvania.The museum is located on the east side of Strasburg along Pennsylvania Route 741...
in Strasburg, Pennsylvania
Strasburg, Pennsylvania
Strasburg is a borough in Lancaster County, Pennsylvania, United States. It developed as a linear village along the Great Conestoga Road, stretching about two miles along path later known as the Strasburg Road...
. The two locomotives are semi-permanently coupled together and were assigned an EZN of 36. 3936 and 3937 are only surviving locomotives of its class and were listed on the National Register of Historic Places
National Register of Historic Places
The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...
in 1979.
History
The DD1-class of locomotives was developed in 1910 to operate in the tunnels under the Hudson RiverHudson River
The Hudson is a river that flows from north to south through eastern New York. The highest official source is at Lake Tear of the Clouds, on the slopes of Mount Marcy in the Adirondack Mountains. The river itself officially begins in Henderson Lake in Newcomb, New York...
between New Jersey
New Jersey
New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...
and New York City
New York City
New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...
. The DD1 consisted of, essentially, two 4-4-0
4-4-0
Under the Whyte notation for the classification of steam locomotives, 4-4-0 represents the wheel arrangement of four leading wheels on two axles , four powered and coupled driving wheels on two axles, and no trailing wheels...
locomotives coupled back-to-back and were never run separately. Each pair, in addition to individual serial numbers, was also assigned an "Electrofied Zone Number" (EZN) to simplify the dispatching and keeping of mechanical records of the locomotives.
3936 and 3937 were built in 1911. They were shifted from mainline passenger duty in 1924 when the L5
PRR L5
The Pennsylvania Railroad's class L5 were the railroad's second generation of production electric locomotives after the DD1, and the last to use a jackshaft and side rods to drive the wheels. The L5 was a single-unit locomotive instead of the twin-unit DD1. Thirteen were built...
was introduced, but would still haul the empty passenger trains from Penn Station
Pennsylvania Station (New York City)
Pennsylvania Station—commonly known as Penn Station—is the major intercity train station and a major commuter rail hub in New York City. It is one of the busiest rail stations in the world, and a hub for inbound and outbound railroad traffic in New York City. The New York City Subway system also...
to the Sunnyside Yard
Sunnyside Yard
Sunnyside Yard is a large coach yard, a railroad yard for passenger cars, in Sunnyside, Queens in New York City.-Description:The yard is owned by Amtrak and is also used by New Jersey Transit. The shared tracks of the Long Island Rail Road Main Line and Amtrak's Northeast Corridor pass along the...
. 3936 and 3937 were donated to the Railroad Museum of Pennsylvania
Railroad Museum of Pennsylvania
The Railroad Museum of Pennsylvania is a railroad museum in Strasburg, Lancaster County, Pennsylvania.The museum is located on the east side of Strasburg along Pennsylvania Route 741...
in Strasburg, Pennsylvania
Strasburg, Pennsylvania
Strasburg is a borough in Lancaster County, Pennsylvania, United States. It developed as a linear village along the Great Conestoga Road, stretching about two miles along path later known as the Strasburg Road...
, by the Pennsylvania's successor Penn Central, in December 1979. Both locomotives were jointly listed on the National Register of Historic Places
National Register of Historic Places
The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...
on December 17, 1979.