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BR 22-012 2-8-2 Steam Locomotive Hi everyone, during last two months I worked on my new (and perhaps last forever ) BR steam locomotive. I'm proud to show you the beautiful BR 22-012 This time I thought of something truly unique from the technical point of view to surprise you ....this time I've implemented in a lego steam locomotive the Walschaerts Valve Gear [...] Walschaerts valve gear was invented around the same time as Stephenson valve gear but did not become popular until the very late 1800's. After that it quickly became the most popular valve gear on steam locomotives. It's main advantage was that it was located completely outside the wheels and therefore was much easier to maintain than Stephenson valve gear http://www.steamloco...s/valvegear.php [...] [/url] [/url]to achieve this goal I have had to customize some pieces: The locomotive is driven by two motors with a high torque ratio, but I have left open the possibility to regear the transmission with less power in favor of the speed, replacing the black and white gears with the yellow and gray as usual my version of this huge steam engine have real lights turned On/Off by a switch and a separate battery this locomotive swings a lot in the corners and on the switch points so I had to design a very flexible joint system I am very satisfied with some details like the front that connects perfectly with the boiler ...the access steps to the boiler ...and rear windows of the tender As always I have to thanks Toastie for providing me with the grooved XL-BBB wheels ...now enjoy the show... ...I'll post as soon as possible the pictures of the complete locomotive with the latest details (some rigid hoses and other little pieces) when the Bricklink orders are delivered ! All the best LT12V!
