It's got a second chain because NL2 doesn't allow variable lift speeds. It'll be one chain that slows down, that's all.What I like most about this is the "panorama stall" section that is really just the peak of the vertical lift hill. In the rendered video, you will notice that the coaster uses two sections of chain lift. The first gets riders to the top of the lift hill, while the second takes the cart up and over the crest at a presumably lower speed, in order to take in the view. Arguments can be made that its a similar system to whats used on B&M dive coaster drops, but I think its a unique and nifty piece of hardware that could possibly be a world's first on its own (prove me wrong, I'm far from 100% about that).
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