Not sure how reliable this is.....http://www.coastersandmore.de/rides/ach ... 2012.shtml
And also the "hardware" for the roller coaster project secret weapon 7 in the English Alton Towers theme park is provided by the Swabians. The large roller coaster 2013 planned to start of the season will be built on the site of the former Black coasters black hole, and overcome almost 25 meters within the sloping topography. The roughly 1000 metre-long roller coaster will offer a large number of inversions and be powered by two Liftsystemen, including a vertical lift, with the necessary energy.
FYI a Liftsystemen is a TurboJet, typically used in short take off and vertical landing, IE F35.
Why on earth something like this would be used I haven't figure out yet. My presumption for this extra depth so far has been purely plant machinery basis. Partly for the noise!
I can understand Gas Turbine power generation, especially for a magnetic launch system, but not something like a Liftsystemen.