Roller coasters these days are not always propelled by a lift hill.  Launches can provide a more thrilling way to start a ride.  They provide differentiation for the parks that have them.  Launches come in all different methods from using magnets (LIM or LSM) to hydraulic launch, to more primitive methods such as a winch, weight drop, or tires.

These are the launched roller coasters that we believe are the best in the business today: