Werner Stengel including Son of Beast, Millennium Force, Superman The Ride, Top Thrill Dragster, Kingda Ka, Dollywood's Mystery Mine, El Toro, Maverick and many others. In the 2004 Amusement Today Golden Ticket Awards list of the world's top 50 steel roller coasters, 72% have had direct involvement with Stengel Engineering. He received an honorary doctorate from Gothenburg University in 2005, for his "inexhaustible creativity in linking physics and design to the experience of the body in roller coasters and other rides." One of the most famous and highly regarded Stengel/Schwarzkopf rides is Lisebergbanan at Liseberg, a park situated in Gothenburg city, Sweden.
Kingda Ka tracks) to load simultaneously. When the signal to launch is given, the train rolls back slightly to engage the catch car, and the brakes on the launch track begin to retract. As the brake fins are retracting, a voice recording announces, "Arms down, head back, hold on!" Approximately five seconds later, the launch occurs. Kingda Ka's horn previously sounded before each launch, but it was silenced due to noise complaints from nearby residents; the horn now sounds only when Kingda Ka first launches after being idle for some time. When the train is in position, the hydraulic launch mechanism accelerates