Barrel-Shaped Bearings! Pennsylvania A3 Switcher, Part 16

Barrel-Shaped Bearings! Pennsylvania A3 Switcher, Part 16

Building Railroad Car Suspension - Pennsylvania A3 Switcher, Part 17

Pressure Testing the Boiler Shell! Pennsylvania A3 Switcher, Part 7

Making Train Wheels - Pennsylvania A3 Switcher, Part 15

Rolling The Boiler Shell - Pennsylvania A3 Switcher, Part 4

Railroad Trucks! Pennsylvania A3 Switcher, Part 18

Hammer-Forming Boiler Parts - Pennsylvania A3 Switcher, Part 2

Boiler Outer Crown Sheet - Pennsylvania A3 Switcher, Part 8

Main Bearings and Drivers - Pennsylvania A3 Switcher, Part 39

Foundation Ring and Backhead! Pennsylvania A3 Switcher, Part 11

Finishing the Boiler!!! Pennsylvania A3 Switcher, Part 12

Finishing The Boiler Shell - Pennsylvania A3 Switcher, Part 6

Front Driver Axle Box - Pennsylvania A3 Switcher, Part 38

Boiler Building Q&A! Pennsylvania A3 Switcher, Part 14

Let's Build a Locomotive! Pennsylvania A3 Switcher, Part 1

Pressure Testing The Firebox! Pennsylvania A3 Switcher, Part 10

Adding Boiler Features - Pennsylvania A3 Switcher, Part 5

Tender Water Tank - Pennsylvania A3 Switcher, Part 21

Finishing the Tender Tank - Pennsylvania A3 Switcher, Part 24