13090

Gauge 1 Aster Union Pacific Challenger 4-6-6-4

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A gauge 1 Union Pacific 4-6-6-4 "Challenger", at just under four feet long one of the largest and most complex models offered by Aster.

Made in small quantities - with most engines pre-ordered - the design sold out shortly after launch. Used examples come up occasionally - new, mint in box examples such as this one are a good deal harder to find.

Unsteamed, in original manufacturer's packaging with all documentation and tools.

Technical information

Stock code

13090

Length/inches

45

Width/inches

4

Height/inches

6

Weight/Kg

19

Wheel material

steel

Axlebox type

plain bearing

Cylinder material

gunmetal

Valve type

piston

Valve gear

Walschaerts

Reverser type

pole

Boiler maker

Aster

Boiler type

C-Type, spirit-fired

Boiler construction

silver soldered

Boiler material

copper

CE/UKCA mark

n/a - <2 litre capacity

Bore x stroke

15x24mm

Hand pump

1

Mechanical pump

2

Superheater

1

Minimum radius

10

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