• A
  • Airtime
    The sensation of weightlessness experienced on Free Fall rides and Roller coasters when you go over a bump and fly out of your seat.
  • Anti-Rollback Device
    The name given to the system which uses "dogs" under the cars that ratchet into place and prevent the trains from rolling back down the lift hill, if something were to go wrong with the lift hill chain.
  • B
  • Backwards Seats
    Seats on a train which face in the opposite direction as the train.
  • Backwards Trains
    A train which goes on the ride backwards. E.g. The trains on X:\\No Way Out at Thorpe Park.
  • Banked Turn
    Where the track is tilted as it goes round a corner. It is done to change the lateral forces into vertical forces. Instead of the rider being pushed to the side as they go around the corner they are pushed into the bottom of the seat.
  • Barrel Roll
    The name is taking from and acrobatic maneuver done by a plane. It is given to an element where a complete sideways twist occurs.
  • Block
    To allow more than one train/car to be on a track at any one time the track is split into blocks. Safety systems built into the ride prevent collisions by only allowing one train/car into the block section at once.
  • Bogie
    The underside of a roller coaster vehicle.
  • Booster Wheels
    Wheels found in coaster stations which help the train to depart.
  • Brake Run
    A series of brakes that slow down a coaster train until it stops. Found at the end of every roller coaster.
  • Bunny Hop
    A small bump that produces airtime. E.g. The bump after the Vertical Loop on Colossus at Thorpe Park.
  • C
  • Camelback
    See Bunny Hop
  • Capacity
    The number of people a ride can give a ride to in one hour.
  • Car
    The part of a coaster train in which you sit.
  • Catapult
    Also known as Launched it can be in the form of linear induction motors (LIM's), pneumatic tires, compressed air or anything else that can be used to launch a coaster train so it can travel round the coaster circuit, instead of a lift hill. E.g. Rita at Alton Towers has a launch at the start of the ride which powers it for the whole ride.
  • Chain Dogs
    Used in the Anti-Roll-Back device on a lift hill. The chain dogs are the catches on the underside of a coaster the make the noise as you go over the ratchets on the lift-hill.
  • Chain Lift
    A chain which is on the coaster lift hill used to pull the train to the top. The chain is powered by a motor at the bottom of the lift.
  • D
  • Dark Ride
    A generic term used to describe and type of ride that is in and enclosed environment in the dark.
  • Dueling Coaster
    A coaster which has two tracks and two sets of trains. The tracks are designed to be the same length and race each other from the start to the finish.
  • E
  • Element
    A section of track that adds a thrill factor. E.g. Barrel Roll, Vertical Loop etc.
  • Enclosed Ride
    A generic term used to describe and type of ride that is in and enclosed environment in the dark.
  • F
  • Flush Loading
    Riders exit from the opposite side of the train from that of which they were loaded.
  • Footprint
    Riders exit from the opposite side of the train from that of which they were loaded
  • Full Loading
    Riders exit the train on the side which they got on.
  • G
  • Gauge
    The distance between the two running rails.
  • Giga-coaster
    A coaster that is taller than 300ft.
  • H
  • Helix
    A banked corner which goes either up or down in height. E.g. At the end of Nemesis Inferno (Thorpe Park, England) the track does a figure of 8 these are two up-hill helix's.
  • Hyper-coaster
    A coaster that is greater than 200ft in height.
  • J
  • Junior Coaster
    A coaster that is designed for children to ride.
  • K
  • Kinetic Energy
    Movement energy.
  • L
  • Lateral G
    The G-force experience by a riders that pushed them sideways as they go around a corner. As objects like to travel in straight lines when there course is altered pressure is built up on the side being pushed the greater the course alteration the greater the lateral G.
  • Lift Hill
    The section of track often found at the start of the ride which transports riders in the train/car from the bottom of the ride to the top before its starts to fun under the power of gravity
  • Linear G
    This is the force forced upon a rider during a launch or brake. It either pushes them forwards or backwards.
  • M
  • Magnetic Brakes
    A type of brake that uses the power of magnets to slow a train down.
  • Midcourse Lift
    A lift-hill that is located somewhere between the first lift-hill and the end of the ride. E.g. The Vampire (Chessington World of Adventures, England) has two lift-hills. The second is a midcourse lift.
  • N
  • Negative G
    The upward force on a rider when gives the sensation of airtime.
  • P
  • Positive G
    The downward pressure experienced by a rider when they are pushed up by the car. This is usually experienced when going up a hill fast or when you go through a banked corner and are pushed into the bottom of the seat
  • Potential Energy
    The higher a lift hill is the more potential energy the ride has because it has further to fall which will build up more speed. When the train falls down a drop it is converting the potential energy into kinetic energy.
  • Powered Coaster
    The name given to a coaster that has electricity going around its track which power a motor on the train which dives it. E.g. The Runaway Mine Train at Alton Towers, England.
  • R
  • Racing Coaster
    A coaster which has two tracks and two sets of trains. The tracks are designed to be the same length and race each other from the start to the finish.
  • Ratchets
    The part of the Anti Rollback Device that is located on the lift hill which the dogs on the underneath of the train latch onto.
  • Ribs
    The bit when connects the running rails on a track to the spine on a steel track to which the supports are connected.
  • Rolling Stock
    The roller coaster train.
  • Running Wheels
    The wheels that run along the top of the track.
  • S
  • Shuttle
    A layout of track that isn't a complete circuit. The train will go one way then the other. E.g. Irn Bru Revolution (Blackpool Pleasure Beach, England).
  • Side Friction Wheels
    Wheels located on either the inside or the outside of the running rails to stop the train falling off to the left or the right
  • Spine
    The part of the track which connects to the supports and the Ribs. E.g. On Nemesis (Alton Towers, England) it is the middle square beach that runs between the two running rails.
  • Stall
    When a Coaster train does not make it up a hill and is left in midcourse.
  • Station
    The place where riders get on and off a ride.
  • T
  • Train
    A series of cars connected together.
  • Trim Brake
    Used to slow the train down midcourse.
  • U
  • Up-Stop Wheels
    The wheels that run on the underside of the track which stop the train from leaving the track.
  • V
  • Vertical Loop
    A track element where the track makes an oval shape and is also facing directly upwards.
  • W
  • Wheel Assembly
    The wheel configurations on a coaster train.