Linear synchronous motor

From Coasterpedia, the Roller Coaster and Amusement Ride Wiki - 10,463 articles since August 2009
An LSM-powered lift hill on Maverick at Cedar Point

A linear synchronous motor (LSM) is a form of electro-magnetic propulsion containing no moving parts. The launch system is used to launch a roller coaster train to a high speed quickly. They are a relatively new launch technology and are now favored over the older linear induction motor technology.

How it works[edit | edit source]

The LSM launch system is a system that contains meany electro-magnets to propel the train to a higher speed. The way it works is by having two pairs (sometimes one) pair(s) of magnetic rectangular fins, the fins produce a North to North magnetic push. as the roller coaster train goes over these fins there are a pair of corresponding magnets that are the same type as the fins. When the two magnets interact the repel each other forwards causing the train to go to high speeds. When the train is not on the LSM's track section the operator or coasters computer system will cut the electrical power to the fins this is only possible because the fin type magnets are electro-magnets, meaning they can be toggled on and off just by turning the power on and off.