- It is a type of civilian vehicle, a train, and a groundcraft.
- It is a specialized form of vehicle.
- It operates on train networks.
- It is an element of infrastructure.
A Cog Locomotive uses cog wheels or pinions, fitted to an axle, that mesh with a toothed rack rail, usually located between the running rails. This allows it to perform safely on steep gradients where the wheels of conventional friction-based locomotives would slip. Most cog locomotives operate in mountainous regions.
Cog locomotives may be utilized on railroad or monorail networks, where wheel friction and slippage on the rails are concerns. Light rail networks, often constructed in difficult terrain, may utilize cog locomotives.
Early trains used very low beastpower external combustion engines and had immense difficulty dealing with mountainous, high altitude regions. Power diminished at higher altitudes where there is less oxygen and conventional bogey wheels slipped when dealing with steep inclines. The Cog Locomotive was an natural solution to these challenges.
Expected Train Development Sequence
MACRO LEVEL: TL:1-9:
- Network Type: Land Train → Railroad Train → Monorail Train → Funicular Train → Subway Train → Atmospheric Train → Hover Train → Maglev Train → Sky Train
- Motive Power: Steam Locomotive → Cog Locomotive → Light Rail Locomotive → Internal Combustion Locomotive → Diesel Locomotive → Electric Locomotive → High Speed Locomotive
MACRO LEVEL: TL:10-18
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