Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only

Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only

We offer reproductions of the original Union Pacific design and engineering drawings used to build full-size engines during the grand steam locomotive era.

Union Pacific Railroad contracted with the American Locomotive Company (ALCO) for construction of the 4-6-6-4 Challenger, the 4-8-8-4 Big Boy, and the FEF-3 4-8-4 Northern. We offer sets and individual drawings of those locomotives

Name DWG. Number Drawing Title DWG. Size (in) Scale to 1 ft. Wheel Arrangement Price Qty Add To Cart
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only - Set- UP-3900-SET
1
$331.46
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boiler – Elevation  (4) 134-CA-31016 Boiler – Elevation  (4) 30x182 1 1/2” 4-6-6-4
1
$22.75
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boiler – Sections  (3,4) 134-CA-29803 Boiler – Sections  (3,4) 30x107 1 1/2” 4-6-6-4
1
$13.38
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boxes – Driving – Driving Box Housing, Front & Intermediate   (3,4) #164-CA-27101 C Boxes – Driving – Driving Box Housing, Front & Intermediate   (3,4) 30x50 3” 4-6-6-4
1
$6.25
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boxes – Driving Arrangement – Main (5) #163-CA-32182 C Boxes – Driving Arrangement – Main (5) 30x21 3” 4-6-6-4
1
$2.63
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boxes – Driving Arrangement  (5) #163-CA-32183 C Boxes – Driving Arrangement  (5) 30x21 3” 4-6-6-4
1
$2.63
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boxes – Engine Truck – Journal Bearing Mounting Arrangement  (3,4,5) #174-CA-28056 C Boxes – Engine Truck – Journal Bearing Mounting Arrangement  (3,4,5) 30x50 6” 4-6-6-4
1
$6.25
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boxes – Trailing Truck – Journal Bearing Mounting Arrangement  (3,4,5) #174-CA-28057 C Boxes – Trailing Truck – Journal Bearing Mounting Arrangement  (3,4,5) 30x41 6” 4-6-6-4
1
$5.13
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boxes – Truck – Trailing Truck Box – Front & Back  (3,4,5) #174-CA-29200 C Boxes – Truck – Trailing Truck Box – Front & Back  (3,4,5) 30x41 6” 4-6-6-4
1
$5.13
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Brake – Engine – Driver Brake Arrangement(3,4,5) 204-CA-31188 Brake – Engine – Driver Brake Arrangement(3,4,5) 31x94 1 1/2” 4-6-6-4
1
$12.14
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Cab – Front  (3,4,5) 223-CA-29856 Cab – Front  (3,4,5) 30x21 1 1/2” 4-6-6-4
1
$2.63
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Cab  (3) 224-CA-29855 Cab  (3) 30x67 1 1/2” 4-6-6-4
1
$8.38
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Cab  (4,5) 224-CA-31010 Cab  (4,5) 30x67 1 1/2” 4-6-6-4
1
$8.38
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Combination Pilot & Beam w/Swivel Type Coupler  (3,4,5) *#GSC 53008 3900 Combination Pilot & Beam w/Swivel Type Coupler  (3,4,5) 30x40 2” 4-6-6-4
1
$5.00
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Crosshead  (3,4,5) 304-CA-29709 Crosshead  (3,4,5) 30x41 6” 4-6-6-4
1
$5.13
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Cylinder 21” x 32” – Front Unit  (3,4) 314-CA-30917 Cylinder 21” x 32” – Front Unit  (3,4) 30x90 2” 4-6-6-4
1
$11.25
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Cylinder 21” x 32” – Rear Unit  (3,4) 314-CA-30918 Cylinder 21” x 32” – Rear Unit  (3,4) 30x95 2” 4-6-6-4
1
$11.88
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Cylinder Details – Steam Chest Head – Back – Back Engine  (3,4,5) #323-CA-25046 C Cylinder Details – Steam Chest Head – Back – Back Engine  (3,4,5) 30x23 4” 4-6-6-4
1
$2.88
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Dome – Dome Casing  (3,4,5) #362-CA-28966 C Dome – Dome Casing  (3,4,5) 21x15 1 1/2” 4-6-6-4
1
$1.31
Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Dome   (3,4,5) 362-CA-29949 Dome   (3,4,5) 24x15 1 1/2” 4-6-6-4
1
$1.50