How does an articulated locomotive work?

An articulated steam locomotive is defined as any design which has at least two sets of drivers, with the lead set having the ability to swivel independently from the rigid frame to more easily negotiate curves. This technological development allowed steam locomotives to grow in size prodigiously.

How does an old steam locomotive work?

When heated, water turns to an invisible vapor known as steam. The volume of water expands as it turns to steam inside the boiler, creating a high pressure. The expansion of steam pushes the pistons that connect to the driving wheels that operate the locomotive.

How does a Beyer-Garratt work?

The Beyer-Garratt differs from a conventional locomotive in that its boiler is not directly over the engine (chassis, wheels and motion), instead the boiler (cab) is mounted on a sub frame which is slung between the two engine sets which are allowed to pivot making the wheel base less rigid.

What is an articulated steam locomotive?

An articulated locomotive is a steam locomotive (rarely, an electric locomotive) with one or more engine units that can move independent of the main frame. Articulated locomotives saw service in many nations, but were very popular on narrow-gauge railways in Europe.

What is meant by articulated train?

Definition of articulated train : a railroad train whose cars are permanently or semipermanently jointed together for operation as a unit as distinguished from one whose cars may be readily uncoupled and operated in other trains.

What were the advantages of the Garratt locomotive?

The design also provides more driving wheels per unit of locomotive weight, permitting operation on lightly engineered track. Garratt locomotives produced as much as twice the power output of the largest conventional locomotives of railways that introduced them, reducing the need for multiple locomotives and crews.