4-4-0 - Wikipedia
4-4-0, in the Whyte notation, denotes a steam locomotive with a wheel arrangement of four leading wheels on two axles (usually in a leading bogie), four powered and coupled driving wheels on two axles, and no trailing wheels.
Why Steam Locomotive Wheel Arrangements Matter
The 4-8-8-4 steam locomotive has four leading wheels, two sets of eight driving wheels, and four trailing wheels. They were designed to haul heavy freight in mountainous regions. This locomotive had hinged frames to allow them to negotiate curves.
STEAM LOCOMOTIVE WHEEL ARRANGEMENT CLASSIFICATIONS …
STEAM LOCOMOTIVE WHEEL ARRANGEMENT CLASSIFICATIONS: Frederick Methvan Whyte's system of classification is used to describe the wheel arrangement of conventional steam locomotives. In this system, the first number is the number of leading wheels, and the last is the number of trailing wheels.
The Whyte Wheel Classification System for Steam Locomotives
The Whyte Wheel Classification System for Steam Locomotives. F.M. Whyte, a mechanical engineer, suggested a method of classifying steam locomotives by the number of wheels they had. This system came into use early in the 20th century …
4-8-0 - Wikipedia
Under the Whyte notation for the classification of steam locomotives, 4-8-0 represents the wheel arrangement of four leading wheels on two axles, usually in a leading truck or bogie, eight powered and coupled driving wheels on four axles and no trailing wheels.
4-4-0 AMERICAN - trains-and-railroads.com
A 4-4-0 is a locomotive type that uses the Whyte notation for the classification of steam locomotives by wheel arrangement and has four leading wheels on two axles (usually in a leading bogie), four powered and coupled driving wheels on two axles, and a lack of trailing wheels.
4-6-0 - Wikipedia
A 4-6-0 steam locomotive, under the Whyte notation for the classification of steam locomotives by wheel arrangement, has four leading wheels on two axles in a leading bogie and six powered and coupled driving wheels on three axles with the absence of trailing wheels.
The 4-6-0 "Ten-Wheeler": A Classic Design Since 1847 - American-Rails.com
The 4-6-0 was an incredibly popular steam locomotive that first saw service in the 1840s. Thousands were built and saw use on numerous railroads.
4-4-0 (American / 8-Wheeler / Standard) Steam Locomotive
The 4-4-0 "American" locomotive was a popular steam-based loco unit appearing during the mid-late 1800s and into the early 1900s, first becoming available in tender engine form in 1836 with the Philadelphia, Germantown and Norristown Railway.
4-6-0 "Ten-Wheeler" Locomotives in the USA
4-6-0 "Ten-Wheeler" Locomotives in the USA. The 4-6-0 wheel arrangement was a natural progression from the 4-4-0 (American type) when railroads desired a locomotive with more power. The first example was built in 1847 by the Norris Brothers for …