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A two truck, two cylinder, Shay Locomotive . My BBB&C's Class A Shay Locomotive number 7, with videos . A two truck, two cylinder, "Class A" Shay Locomotive My BBB&C's locomotive number 7 (Buffalo Bayou, Brazos and Colorado Railway) I should say that I built this MOC in response to an article called "SELECTIVE COMPRESSION APPLIED TO MECHANICAL DETAILS" by Steve Barile in RAILBRICKS issue 3 on page 34-35 where it says: "The Shay does not have traditional steam driver wheels but instead only front and rear two axle trucks. What is tricky about modeling the Shay is the rotating, bending, and changing length of the drive shaft, while maintaining a 90ยบ crown gear connection to each axle as well as a connection to the vertical piston rods. It barely makes mechanical sense while studying the real engine. Trying to achieve this in a six wide (even eight wide) train with a pure LEGO solution seems to be impossible (ha, a challenge!)." I hope my 8-wide MOC answers this challenge! This locomotive is blogged on RailBricks! Thanks Tony! More information below these photos and videos Modeled on Shay serial number 122 I also choose it because it's a "T-Boiler" or "Boot Boiler" so I could hide my power functions motor in it. I also looked at Bachmann's Class A Shay model: Videos: I should say that in this first video, you will see the Shay make left and right turns as well as past through switches. At the Memorial Hermann Tower Grand Opening TexLUG show For more info on: The BBB&C the First Railroad in Texas The Shay Locomotive The Shay locomotive serial number 122 The Home of Republic of Texas Navy in LEGOs is right here on MOCpages. enjoy kurt Notes:RTS - Republic of Texas ShipRTN - Republic of Texas NavyLNA - Lego Naval Architect

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