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B-Class 28Ton Shay - 2011 Edition

 

The most widely used geared locomotive the "Shay locomotive" was invented by a logger Ephraim Shay who wanted to find a way to facilitate logging operations. Instead of using horse drawn skids or river floats he developed a flat car powered by a vertical two cylinder steam engine, running on rails. In 1884 he consulted with a machinery builder, Lima Machine Works in Ohio which designed the first 3 cylinder B-type Shay locomotive named in his honor. The concept gained tremendous popularity and subsequently 2,770 Shay locomotive were produced by the company known as Lima Locomotive Works. 

The operation of Shay locomotives was not limited to any region. In fact many Lima Shays were exported for use around the World. In the early 1890's the Alishan Forestry Railway in Taiwan was constructed by the Japanese Colonial Government to facilitate logging of the local forestry resources. The Railway acquired 20 Shay locomotives, eight 18 ton-, and twelve 28 ton versions. Today several of them are preserved in running and static condition. Aster Hobby Co. Inc. released the first model of a 28 ton Alishan Shay in 1978. The redesigned 2011 model features improved detail and machining, butane firing and a axle driven feed water pump. The Alishan Shay was available as a kit and currently one (1) factory built remains in our inventory.

 

 

Specifications

Scale/Gauge

1/22.5 "G gauge" 

Weight

3.5kg /  7.7 lbs

Length

435mm / 17.1 inches

Width

97mm / 3.8 inches

Height

145mm / 5.7 inches

Wheel Arrangement

BB(0-4+0-4)  

Driving Wheel

cast iron dia 30mm 

Axle Driven Pump

fittedBore 3.8mm  Ram Stroke 6mm ) 

Cylinder

Bore 9mm  Stroke 10mm (PB) 

Valve Gear

Stephenson's valve gear 

Boiler Type

Center flue type with super heater 

Water Capacity

150cc 

Boiler Fittings

2 X SAFETY VALVES, PRESSURE GAUGE, WATER GAUGE, REGULATOR VALVES, BY-PASS VALVE 

Lubricator

ROSCOE DISPLACEMENT TYPE  

Tender

HAND OPERATION PUMP (BORE 11 mm X STROKE 12 mm)  

Water Tank Capacity

400cc 

Fuel

Butane  

Capacity

37cc 

Minimum Radius

1.5m / 5 feet

 

 
 

 

 

 

 
 
 

 

 

 
 

 

 

 

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