Allen Models has acquired Kenneth Schroeder's Shay locomotive business. The Schroeder Shay castings can be used to produce a 50-ton class "B" two truck, three cylinder shay or a 60-ton class "C" three truck, three cylinder shay, both in 1.5" scale (1/8 scale). The cylinder castings are scale for a 12" stroke by 11" bore cylinder.
The 2- truck Shay is 56" long and weighs 310 pounds. The 3- truck Shay is 84" long and weighs slightly more than 400 pounds. The first build of this locomotive is a proven performer, having pulled nine cars with 27 people, and being in service since 1976.
82 drawings plus three pages of color pictures showing various parts of the locomotive are available which detail the machining of the castings and which detail the trucks, the 3 cylinder engine and the frame.
Castings are made of grey iron except the eccentric straps and slide valves which are bronze.
For information about each casting group, click on the section group below.
For details of a build of this locomotive, check out Nelson Riedel's Shay Locomotive project page.
|Scale:||1 1/2" (1/8 scale)||Minimum Radius:||25'|
|Gauge:||7 1/2" or 7 1/4"||Boiler:||6"|
|Bore:||1.375"||Engine Length (3 truck):||84"|
|Stroke:||1.5"||Engine Length (2 truck):||56"|
|Valve Gear:||Stevenson||Weight (3 truck)||400 lbs|
|Drivers:||4"||Weight (2 truck)||310 lbs|
This section includes all of the castings needed to build the trucks. The quantities are defaulted to the amount needed to build a three truck shay. The trucks are fabricated using the listed castings along with various shapes of hot rolled steel bar and angle. The gears are stock gears which are manufactured by either Boston Gear or Martin Gear. The axles run on ball bearings while the drive shaft runs in bronze bushings. The drawings cover the machining of the truck castings along with the other components needed to complete the trucks. The brakes are steam actuated and there are drawings covering the brake system. Learn More
These are all the castings needed to complete the engine set for two and three truck shays. The engine portion of the locomotive is made using the listed castings along with brass and stainless steel round stock. The crankshaft is fabricated from drill rod and cold rolled steel bar stock. The intake and exhaust manifolds are made from copper pipe and 1/4" copper soldered joint fittings. The drawings cover the machining and fabrication of all the parts needed to make the three cylinder engine. Learn More
This section contains all of the front end and smokebox castings necessary to complete the two and three truck Shay. These castings are used to complete the engine and boiler. The boiler is made from 6" steel schedule 40 pipe with ½" copper pipe tubes rolled in. The boiler is a welding project. There are drawings for the boiler along with drawings showing the throttle which uses a standard ball valve. The boiler can also be built by a professional boilermaker. Learn More