Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

EMD GP39: History, Measurement, Standards & Products

The EMD GP39 is a 4-axle diesel-electric locomotive built by General Motors Electro-Motive Division between June 1969 and July 1970. The GP39 was a derivative of the GP38 equipped with a turbocharged EMD 645E3 12-cylinder engine which generated 2,300 hp (1.72 MW).

Language: English [EN]
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.
100%
More settings
100% 100% 100% 100% 100%

EMD GP39 topic overview

The analysis highlights History, Measurement, Standards and Products as prominent areas in the source structure around EMD GP39.

Related topics
20
Source areas
2
Connected nodes
22
Extracted relationships
32
Concept neighborhoods
14
Bridge connections
22

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Production history · 13 topics
Overview · 7 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Build date
June 1969 – July 1970
Builder
General Motors Electro-Motive Division (EMD)
Career
CareerLocaleUnited States
Cylinders
12
Engine type
V12 diesel engine
Locale
United States

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Production history

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How EMD GP39 connects Entity context

The extracted context around EMD GP39 shows recurring relationship patterns in the source. For example, EMD GP39 → All, EMD, EMD GP49, General Motors Electro-Motive Division, Norfolk Southern, Norfolk Southern's, Southern Railway, Southern's, The EMD GP39X, They, Tri-Rail Another extracted example is EMD GP39 → EMD GP39 Original Owners, Media, Robert, Wikimedia Commons Sarberenyi, Wiktionary-logo-en-v2. Use these groups to spot repeated connection types before inspecting the individual relationships.

EMD GP39

Top relations

related to GP39X · 11
EMD GP39 → All, EMD, EMD GP49, General Motors Electro-Motive Division, Norfolk Southern, Norfolk Southern's, Southern Railway, Southern's, The EMD GP39X, They, Tri-Rail
related to External links · 5
EMD GP39 → EMD GP39 Original Owners, Media, Robert, Wikimedia Commons Sarberenyi, Wiktionary-logo-en-v2
Build date · 1
EMD GP39 → June 1969 – July 1970
Builder · 1
EMD GP39 → General Motors Electro-Motive Division (EMD)
Career · 1
EMD GP39 → CareerLocaleUnited States
Cylinders · 1
EMD GP39 → 12
Engine type · 1
EMD GP39 → V12 diesel engine
Gauge · 1
EMD GP39 → .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .de…
Locale · 1
EMD GP39 → United States
Model · 1
EMD GP39 → GP39, GP39X

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

emd built gp39 railway locomotive gp39x copper diesel-electric general motors electro-motive division june 1970 hp model gp39dc examples later locomotives

EMD GP39 relationships Subject–Predicate–Object triples

TTTA extracted 32 structured relationships around EMD GP39. Examples in this analysis include EMD GP39 → Build date → June 1969 – July 1970 and EMD GP39 → Builder → General Motors Electro-Motive Division (EMD). The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
EMD GP39Build dateJune 1969 – July 19701.00infobox
EMD GP39BuilderGeneral Motors Electro-Motive Division (EMD)1.00infobox
EMD GP39CareerCareerLocaleUnited States1.00infobox
EMD GP39Cylinders121.00infobox
EMD GP39Engine typeV12 diesel engine1.00infobox
EMD GP39Gauge.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .de…1.00infobox
EMD GP39LocaleUnited States1.00infobox
EMD GP39ModelGP39, GP39X1.00infobox
EMD GP39Performance figuresPerformance figuresPower output2,300 hp (1.72 MW)1.00infobox
EMD GP39Power output2,300 hp (1.72 MW)1.00infobox
EMD GP39Power typeDiesel-electric1.00infobox
EMD GP39Prime moverEMD 6451.00infobox
EMD GP39SpecificationsSpecificationsGauge.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-pars…1.00infobox
EMD GP39Total produced21 GP39; 2 GP39DC; 6 GP39X1.00infobox
EMD GP39Type and originType and originPower typeDiesel-electricBuilderGeneral Motors Electro-Motive Division (EMD)ModelGP39, GP39XBuild dateJune 1969 – July 1970Total produced21 GP39; 2 GP39DC; 6 GP39X1.00infobox
EMD GP39is a4-axle diesel-electric locomotive built by General Motors Electro-Motive Division between June 1969 and July 19700.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around EMD GP39 bring nearby vocabulary together. In this analysis, examples include Gp39, Diesel-electric and Division. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • EMD GP39
    • Gp39
    • Diesel-electric
    • Division
    • Electro-motive
    • General
    • Hp
    • Motors
    • Built
    • Gp39x
    • Locomotive
    • Engine
    • Gp38
  • emd gp39
    • Gp39
    • June
    • Diesel-electric
    • Division
    • Electro-motive
    • General
    • Hp
    • Motors
    • Built
    • Gp39x
    • Locomotive
    • Engine
  • diesel-electric locomotive
    • Division
    • Electro-motive
    • General
    • Motors
    • July
    • Hp
    • June
    • Gp39x
    • Built
    • Emd
    • Examples
    • Later
  • general motors electro-motive division
    • Division
    • Electro-motive
    • General
    • Motors
    • July
    • Hp
    • June
    • Gp39x
    • Emd
    • Locomotive
    • Arizona
    • Engine
  • emd 645e3
    • Gp39
    • Diesel-electric
    • Division
    • Electro-motive
    • General
    • Hp
    • Motors
    • Built
    • Gp39x
    • Locomotive
    • Engine
    • Gp38
  • kennecott copper company
    • Basin
    • Arizona
    • Hayden
    • Kennecott
    • Model
    • Railway
    • Gp39dc
    • Original
    • Gp39x
    • Mw
    • Mw-parser-output
    • Power
  • copper basin railway
    • Basin
    • Copper
    • Arizona
    • Hayden
    • Kennecott
    • Railway
    • Gp39dc
    • Model
    • Original
    • Gp39x
    • Engine
    • July
  • emd gp49
    • Gp39
    • Diesel-electric
    • Division
    • Electro-motive
    • General
    • Hp
    • Motors
    • Built
    • Gp39x
    • Locomotive
    • Engine
    • Gp38

Connections between topic areas Semantic bridges

For EMD GP39, one of the stronger structural bridges in this analysis connects EMD GP39 with Production history. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
EMD GP39Production history · splits 9 ⟂ 14
EMD GP39Overview · splits 15 ⟂ 8

Map overview Semantic statistics

EMD GP39

Nodes23
Edges22
Triples32
Avg. degree1.91
Density0.086957
Components1

Source & methodology

TTTA analyzes the structure around EMD GP39 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Measurement, Standards & Products, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — EMD GP39 · EN edition · Analysis: TopicsToTalkAbout

For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.