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EMD GP49: Applications, Measurement, Companies & Products

The EMD GP49 is a 4-axle diesel locomotive built by General Motors Electro-Motive Division. Power was provided by an EMD 645F3B 12-cylinder engine which generated 2,800 horsepower (2.09 MW). The GP49 was marketed as one of four models in the 50 series introduced in 1979. The 50 series includes GP/SD49 and GP/SD50. Both the GP and SD50 were relatively…

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EMD GP49 topic overview

The analysis highlights Applications, Measurement, Companies and Products as prominent areas in the source structure around EMD GP49.

Related topics
20
Source areas
2
Connected nodes
22
Extracted relationships
46
Concept neighborhoods
12
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.

Current use · 12 topics
Overview · 8 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
September 1983 - May 1985
Builder
General Motors Electro-Motive Division
Career
CareerOperatorsAlaska RailroadDispositionSeveral still in service on other railroads
Configuration:
​
Cylinders
12
Disposition
Several still in service on other railroads

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

Current use

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 GP49 connects Entity context

The extracted context around EMD GP49 shows recurring relationship patterns in the source. For example, EMD GP49 → Combs, Dale, Diesel Data Series-Number, Field Guide, Foster, Gerald, GP-49 Specifications, Guide, Houghton Mifflin Company, Hundman Publishing Company, ISBN, Jerry, John, John's Alaska Railroad Web, Kalmbach Publishing, Milwaukee, Mukilteo, New York, NY, Page Another extracted example is EMD GP49 → September 1983 - May 1985. Use these groups to spot repeated connection types before inspecting the individual relationships.

EMD GP49

Top relations

related to Further reading · 26
EMD GP49 → Combs, Dale, Diesel Data Series-Number, Field Guide, Foster, Gerald, GP-49 Specifications, Guide, Houghton Mifflin Company, Hundman Publishing Company, ISBN, Jerry, John, John's Alaska Railroad Web, Kalmbach Publishing, Milwaukee, Mukilteo, New York, NY, Page
Build date · 1
EMD GP49 → September 1983 - May 1985
Builder · 1
EMD GP49 → General Motors Electro-Motive Division
Career · 1
EMD GP49 → CareerOperatorsAlaska RailroadDispositionSeveral still in service on other railroads
Configuration: · 1
EMD GP49 → ​
Cylinders · 1
EMD GP49 → 12
Disposition · 1
EMD GP49 → Several still in service on other railroads
Engine type · 1
EMD GP49 → V12 diesel
Gauge · 1
EMD GP49 → .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…
Model · 1
EMD GP49 → GP49

Important terminology

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

Important terminology

gp49 built emd engine alaska railroad total gp49s diesel motors power units four company railway series gp sd50 service general

EMD GP49 relationships Subject–Predicate–Object triples

TTTA extracted 46 structured relationships around EMD GP49. Examples in this analysis include EMD GP49 → Build date → September 1983 - May 1985 and EMD GP49 → Builder → General Motors Electro-Motive Division. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
EMD GP49Build dateSeptember 1983 - May 19851.00infobox
EMD GP49BuilderGeneral Motors Electro-Motive Division1.00infobox
EMD GP49CareerCareerOperatorsAlaska RailroadDispositionSeveral still in service on other railroads1.00infobox
EMD GP49Configuration:​1.00infobox
EMD GP49Cylinders121.00infobox
EMD GP49DispositionSeveral still in service on other railroads1.00infobox
EMD GP49Engine typeV12 diesel1.00infobox
EMD GP49Gauge.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 GP49ModelGP491.00infobox
EMD GP49OperatorsAlaska Railroad1.00infobox
EMD GP49Performance figuresPerformance figuresPower output2,800 hp (2.09 MW)1.00infobox
EMD GP49Power output2,800 hp (2.09 MW)1.00infobox
EMD GP49Power typeDiesel-electric1.00infobox
EMD GP49Prime moverEMD 12-645F3B1.00infobox
EMD GP49SpecificationsSpecificationsConfiguration: ​ • AARB-B • UICBo'Bo'Gauge.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-h…1.00infobox
EMD GP49Total produced91.00infobox
EMD GP49Type and originType and originPower typeDiesel-electricBuilderGeneral Motors Electro-Motive DivisionModelGP49Build dateSeptember 1983 - May 1985Total produced91.00infobox
EMD GP49• AARB-B1.00infobox
EMD GP49• UICBo'Bo'1.00infobox
EMD GP49is a4-axle diesel locomotive built by General Motors Electro-Motive Division0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around EMD GP49 bring nearby vocabulary together. In this analysis, examples include Diesel, Division and Electro-motive. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • EMD GP49
    • Diesel
    • Division
    • Electro-motive
    • Horsepower
    • Mw
    • Gp49
    • General
    • Power
    • Motors
    • Engine
    • Performance
    • Four
  • emd gp49
    • Diesel
    • Division
    • Electro-motive
    • Horsepower
    • Mw
    • Engine
    • Gp49
    • General
    • Power
    • Motors
    • Performance
    • Four
  • general motors electro-motive division
    • Division
    • Electro-motive
    • General
    • Motors
    • Performance
    • Emd
    • Horsepower
    • Locomotive
    • May
    • Mw
    • Power
    • September
  • emd 645f3b
    • Diesel
    • Division
    • Electro-motive
    • Horsepower
    • Mw
    • Gp49
    • General
    • Power
    • Motors
    • Engine
    • Performance
    • Locomotive
  • alaska railroad
    • Railroad
    • Service
    • Units
    • Performance
    • Division
    • Electro-motive
    • Horsepower
    • May
    • Mw
    • Gp49
    • General
    • Power
  • horsepower
    • Mw
    • Power
    • Performance
    • May
    • September
    • Total
    • Gp49s
    • Motors
    • Service
    • Alaska
    • Railroad
  • blue mountain railroad
    • September
    • Total
    • Railway
    • Service
    • Units
  • gp
    • Sd50
    • Sd49
    • Series
    • Total

Connections between topic areas Semantic bridges

For EMD GP49, one of the stronger structural bridges in this analysis connects EMD GP49 with Current use. 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 GP49 — Current use · splits 10 ⟂ 13
EMD GP49 — Overview · splits 14 ⟂ 9

Map overview Semantic statistics

EMD GP49

Nodes23
Edges22
Triples46
Avg. degree1.91
Density0.086957
Components1

Source & methodology

TTTA analyzes the structure around EMD GP49 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Applications, Measurement, Companies & 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 GP49 · EN edition · Analysis: TopicsToTalkAbout

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