Mainline Railways was a British model railway brand that operated between 1976 and 1983, introduced by Palitoy, the...
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What is the purpose of the saddle tank carried by some smaller steam locomotives ?
The purpose of the saddle tank carried by some smaller steam locomotives is to provide a source of water for the locomotive's boiler. The saddle tank is a water tank that is mounted on top of the locomotive's boiler, usually in a saddle-like shape, hence the name. It is designed to carry water that is used to produce steam, which powers the locomotive.
The saddle tank is typically positioned above the boiler to take advantage of gravity, allowing the water to flow down into the boiler as needed. This eliminates the need for a separate tender car, which is a separate vehicle that carries water and fuel for larger locomotives. By having the water directly on the locomotive, smaller steam locomotives can operate more efficiently and have a shorter overall length.
The saddle tank is often seen on smaller steam locomotives, such as those used in narrow gauge railways or industrial settings. These locomotives may not have the space or need for a separate tender car, so the saddle tank provides a compact and convenient solution for carrying the necessary water supply.
It is worth noting that the use of a saddle tank is not limited to smaller steam locomotives. Some larger locomotives, especially those used in narrow gauge or industrial applications, may also feature a saddle tank design.
Overall, the purpose of the saddle tank is to provide a water supply for steam generation, allowing the locomotive to operate efficiently without the need for a separate tender car.
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