637 articles
Heeresfeldbahn
A Heeresfeldbahn (German for "army field railway") was a lightly built, usually 600 mm gauge military railway operated by the German army to move supplies and troops.
Heilmann locomotive
The Heilmann locomotive was a steam-electric locomotive developed in France in the 1890s by engineer Jean-Jacques Heilmann, first run as La Fusée électrique in 1893.
Heisler locomotive
The Heisler locomotive was an American geared steam locomotive, patented by Charles L. Heisler in 1892 and built from 1894 to 1941 for logging and mining railroads.
Henschel & Son
Henschel & Son (Henschel & Sohn) was a German engineering company founded in Kassel in 1810 that became Germany's leading steam locomotive builder and later made trucks and buses.
Heritage railway
A heritage railway, also called a museum railway, is a preserved or tourist railway line operated as a living attraction, typically running historic, often steam-hauled, trains.
Hitachi Rail
Hitachi Rail is the railway business of Japan's Hitachi, Ltd., an integrated supplier of rolling stock, signaling, and maintenance with over 24,000 employees in more than 50 countries.
Hopper car
A hopper car is a freight wagon with sloped sides and bottom openings that unloads bulk cargo such as coal, grain, ore, and cement by gravity or air pressure.
HS2 rolling stock
HS2 rolling stock is the fleet of 54 fully electric high-speed trains ordered in December 2021 from a Hitachi-Alstom joint venture under a £1.97 billion contract for Britain's HS2 railway.
HSST
HSST (High Speed Surface Transport) is a Japanese normal-conducting maglev system that levitates vehicles by electromagnetic attraction and entered commercial service in 2005 on Aichi's Linimo line.
Hunslet Engine Company
The Hunslet Engine Company, founded in Leeds in 1864, is a British builder of industrial and narrow gauge locomotives that produced the wartime WD Austerity 0-6-0ST.
Hunting oscillation
Hunting oscillation is the self-excited side-to-side motion of a railway wheelset or bogie, arising from wheel tread conicity and creep forces, growing above a critical speed.
Hybrid vehicle drivetrain
A hybrid vehicle drivetrain, or hybrid powertrain, combines two power sources, typically an engine or fuel cell with a rechargeable battery, so each operates where it is efficient.
Hyperloop Transportation Technologies
Hyperloop Transportation Technologies, known as HyperloopTT, is an American-founded company developing the hyperloop, which moves people and goods in levitating capsules through low-pressure tubes at airplane speeds.
Hyundai Rotem (현대로템)
Hyundai Rotem, 현대로템, is a South Korean manufacturer of trains and defense products and a Hyundai Motor Group affiliate founded in 1999, supplying 40 countries.
HŽ series 1142
The HŽ series 1142 is a class of electric locomotives operated by Croatian Railways, built by Rade Končar from 1981 and used exclusively for passenger trains, nicknamed Brena.
ICE 3
The ICE 3 is a German high-speed train operated by Deutsche Bahn, in service since 2000 as Germany's first train with a regular top speed of 300 km/h.
ICE L
ICE L is a long-distance train operated by Deutsche Bahn and built by Talgo, the first ICE that is locomotive-hauled rather than a powered multiple unit.
Indian locomotive class WAG D-9
The Indian locomotive class WAG D-9 is a 9,000 HP electric freight locomotive built by Siemens Mobility for Indian Railways, with a maximum speed of 120 km/h.
Indian locomotive class WAG-12
The WAG-12 is a 12,000 hp twin-section electric freight locomotive operated by Indian Railways, built by Alstom's joint venture at Madhepura, Bihar, and in service since 2020.
Indian locomotive class WAG-9
The Indian locomotive class WAG-9 is a 6,000 hp three-phase AC electric freight locomotive of Indian Railways, first imported from ABB of Switzerland in the mid-1990s.
Indian locomotive class WAP-5
The Indian locomotive class WAP-5 is a three-phase AC electric passenger locomotive of Indian Railways, built by ABB and delivered from 1995, rated for 160 km/h.
Indian locomotive class WAP-7
The Indian locomotive class WAP-7 is a 6,350 hp AC electric passenger locomotive built for Indian Railways from 2000, adapted from the WAG-9 freight design.
Indian locomotive class WDG-3A
The Indian locomotive class WDG-3A is a 3,100 hp diesel-electric freight locomotive built for Indian Railways by DLW at Varanasi from 1995, India's first dedicated broad-gauge diesel freight class.
Indian locomotive class WDM-2
The Indian locomotive class WDM-2 is a broad-gauge diesel-electric locomotive designed by ALCO in 1962 and built in Varanasi, becoming Indian Railways' standard mainline diesel.
Indian locomotive class WDM-3A
The Indian locomotive class WDM-3A is a 3,100 hp broad-gauge mixed-traffic diesel-electric locomotive built by DLW Varanasi from 1994, with many rebuilt from WDM-2 units at Patiala.
Indian locomotive class WDM-3D
The Indian locomotive class WDM-3D, also written WDM3D, is a 3,300 hp Co-Co diesel-electric mixed-traffic locomotive developed at Varanasi in 2003 for Indian Railways, the last ALCO-based class built there.
Indian locomotive class WP
The Indian locomotive class WP, or WP pacific, was a 4-6-2 Pacific broad gauge passenger steam locomotive introduced in 1947, designed to burn high-ash Indian coal.
Injector
An injector is a steam-driven appliance with no moving parts that forces feedwater into a steam boiler against its own pressure, invented by Henri Giffard in 1858.
Inspection car
An inspection car is a dedicated rail vehicle fitted with instruments that measure track geometry and rail condition while traveling over the line, replacing older visual inspections.
Integral Coach Factory
Integral Coach Factory (ICF), formerly Perambur Coach Factory, is Indian Railways' coach works in Chennai, opened by Nehru in 1955 with Swiss technology; builder of Vande Bharat trains and 75,000 coaches by 2024.