The GT46C is a model of diesel electric locomotive designed and built by Clyde Engineering using Electro-Motive Diesel components.
The GNR(I) Q Class 4-4-0 steam locomotives of the Great Northern Railway (Ireland) (GNR) were mainly used on cross-border mixed traffic duties between Dublin and Belfast, as well as the "Derry Road" between and Derry.
Class Q: Science is a classification used by the Library of Congress Classification system.
The NZR Q class were a pair of 2-4-4T type tank engines built by Rogers Locomotive and Machine Works in New Jersey.
The NZR Q class was an important steam locomotive not only in the history of New Zealand's railway network but also in worldwide railways in general.
The Q and R class was a class of sixteen War Emergency Programme destroyers ordered for the British Royal Navy in 1940 as the 3rd and 4th Emergency Flotilla.
The Q Class, is a type of 0-6-0 steam locomotive designed by Richard Maunsell of the Southern Railway and constructed immediately prior to the Second World War, for use on medium-distance freight trains throughout the network.