Union Pacific Big Boy 4014

Union Pacific Big Boy 4014 made by Redstonista built in about a month, it is a huge train powered by the "walschaerts valve gear system" v 2.0 build by me and powered by 20 total pistons, in this build I tried to faithfully reproduce almost all the details of the big boy irl (this build is more intended as a display piece, even if it still works ... approximately); I recommend NOT to spawn it in advanced physics but in ph5 or less due to the amount of lag it can cause; known problems are the W.v.g.s. which has some problems moving in ph1 due to the weight of the locomotive; the locomotive mounts the working "Mallet" system on the frame, but sometimes the boiler does not turn correctly with respect to the frame due to some strange collision that shouldn't be there, this happens especially with very tight curves; last problem I know is that it cannot reverse tight corners without derailing Commands: 1- W. forward 2-W. backward 3-help trusters can only be activated if either 1 or 2 are activated 4-whistle 5-release system (experimental) if you like what I build leave a like and subscribe to my youtube channel made by Redstonista PS: if you want to make a video or something else, mention me pls, do not reload this creation in the steam workshop or anywhere else (even a modified creation) without my consent