Where was it built?
Doncaster, England, in the United Kingdom.
It was built for the London and North Eastern Railway and designed by Nigel Gresley.
United Kingdom · Steam trains
Flying Scotsman
4-6-2
Flying Scotsman was built in Doncaster in 1923 and designed by Nigel Gresley. It took its name from the London–Edinburgh service. In 1934 it reached 100 mph on a special test run, earning a place in railway history.
- Speed
- 100mph161 km/hHistoric test run · 100 mph
- Year
- 1923Built
- Maker
- Doncaster Works · designer Nigel Gresley
- Job
- Express passenger journeys
Turn it. Take it apart. Discover.
Explore your train
Interactive model loads here. Read the train guide below while it gets ready.
3D modelDrag to turn · Pinch to zoom · Tap a number to explore
How does steam make a train move?
Heat turns water into steam. Steam pushes pistons, and rods turn the wheels. Explore the boiler, cab, running gear and supplies.
- 1The smokebox and frontAt the front of the boiler
Hot gases pass through the boiler and into the smokebox before leaving through the chimney. Look underneath: a curved support called a saddle holds the front on the locomotive’s frame.
Look deeper
Built at Doncaster Works in 1923 to Nigel Gresley’s A1 design, later rebuilt as an A3. The model follows the apple-green 4472 appearance in the supplied photograph. Its 100 mph figure is from the 1934 test run, not a normal service limit.
- 2The driver’s cabBehind the boiler
The crew works here. On a conventional steam locomotive, the fireman tends the fire and the driver controls the engine.
Look deeper
A locomotive’s cab is a workplace, not a passenger compartment. Some early engines had little shelter for their crews.
- 3Chimney and steam domesAbove the boiler
The chimney carries exhaust away. Steam domes help collect steam above the water in the boiler.
Look deeper
Steam and smoke are different: steam is water vapour, while smoke comes from burning fuel. Equipment varies by locomotive.
- 4Wheels, pistons and coupling rodsBelow and beside the boiler
Steam pushes pistons. Rods transfer that motion to the driving wheels, and coupling rods link driving wheels together.
Look deeper
Flying Scotsman has three cylinders: two outside and one between the frames. The model animates the visible outside rods; its hidden middle-cylinder mechanism and complete valve gear are not reconstructed. The four small leading wheels help guide the locomotive, while the six large driving wheels provide traction.
- 5Water and fuelIn tanks or a separate tender
A steam engine needs water and fuel. Tank engines carry supplies on the locomotive; many other engines pull a tender.
Look deeper
The model shows the general storage area. Tender and tank capacities are not reproduced to engineering dimensions.
Get to know Flying Scotsman
How does it move — and what is its job?
Steam pushes pistons, and connecting rods turn the driving wheels.
The wheels grip the rails to move the train. Passenger engines and small yard engines have different jobs: maximum speed is not the only measure of a good locomotive.
When was it built?
Flying Scotsman was built in 1923.
It began service on 24 February 1923. Later rebuilds changed the engine; its history is longer than a single birthday.
Where does it run — or where did it run?
Historically: the East Coast route between London and Edinburgh.
Today, preserved-railway visits and special trips can take it elsewhere. Its name originally belonged to the London–Edinburgh service.
Is it still running today?
It is a working heritage locomotive, with special visits and trips.
The museum lists 2026 events. It no longer runs a normal daily express service; maintenance and the event schedule determine when it can run.
Fleet-status check: 2026-09-17. Consult the operator for departures.What are we still researching?
We leave gaps visible instead of guessing. The original catalogue and our learning model do not establish every real-world specification.
What is it made from?
A train uses different materials for different jobs: metals for strength, glass for windows and insulating materials around wires. Paint colour cannot tell us whether the body underneath is steel or aluminium.
How power reaches the wheels
Follow these steps, then find the matching sections in the model above.
- 1
Fire
Burning fuel supplies heat.
- 2
Boiler
Heat turns water into steam.
- 3
Pistons & rods
Steam pushes; rods transfer the motion.
- 4
Driving wheels
The wheels grip the rails.
Read the wheels
4-6-2 uses wheel counts: 4 leading wheels, 6 driving wheels and 2 trailing wheels. Count both sides together. A T means tank engine; ST means saddle tank and WT means well tank.
What does its speed really mean?
Historic test run · 100 mph. A maximum speed describes particular conditions; station stops, curves, signals and track limits make an actual journey slower.
A fast train is a whole system: vehicle, track, electricity or fuel, brakes, signalling and trained people. A race in the game is a simplified comparison.
What curious kids ask
Are smoke and steam the same thing?
No. Smoke comes from burning fuel. Steam is water in its gas form. The white cloud you can see contains tiny water droplets formed as water vapour cools.
Does the driver steer like a car?
No steering wheel is needed to choose a direction. The rails guide the wheelsets. At a junction, movable sections of rail called points or switches guide the train onto another track. The driver controls speed and braking.
Why can’t it stop straight away?
A moving train has energy. Brakes must remove that energy to slow it down. A heavy train travelling fast needs room to stop, so railway signals help keep trains safely separated.
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LB&SCR B1 Gladstone Little railway dictionary
Bogie / truck
A frame holding wheelsets beneath a vehicle. It can turn relative to the body to help the train follow curves.
Gauge
The distance between the inside faces of the two running rails. Narrow gauge means closer rails; loading gauge describes the space a train may occupy.
Pantograph
A folding roof collector that stays in contact with an overhead power wire.
Traction
The force used to pull or propel the train. Grip between wheels and rails limits how much force can be used.
Multiple unit
A train with propulsion equipment within its passenger vehicles, operated together from one cab.
Locomotive
A powered vehicle whose main job is to move other railway vehicles.
Shunting / switching
Moving and arranging vehicles in a yard, often at low speed.
Livery
The colours, stripes, logos and other markings painted or applied to a train.
Service speed
The permitted speed for passenger or freight operation on a suitable section. It is not the journey average.
Record speed
A speed achieved on a particular test or record attempt, sometimes with special equipment and conditions.
Tender
A vehicle coupled to a steam locomotive to carry extra water and fuel. A tank engine carries water on the locomotive itself.
Prototype
An early vehicle built to develop and test a design before a production fleet.
Sources & reading
Follow the operator, builder and museum references below for more detail. Links beside an answer show which source supports that answer.
- National Railway Museum · Flying Scotsman history ↗
- National Railway Museum · Flying Scotsman visits and trips ↗
Edition 2026-09-27. Catalogue background is carried forward from the original collection; it is not a new independent verification. Engineering explanations describe principles. Portraits and 3D models are illustrations, with simplified parts and proportions. This is an independent learning guide, not an operator’s timetable.