Single Rail Roller Coaster

''This article is about the RMC-based Single Rail Roller Coaster introduced in OpenRCT2. For the ride that was named Single-Rail Roller Coaster in the original RollerCoaster Tycoon, please see Steeplechase.''

The Single Rail Roller Coaster is a steel roller coaster that runs on narrow steel track with single-seater trains.

Overview
The Single Rail Roller Coaster's track was implemented in OpenRCT2 v0.3.3 which could be accessed by enabling "allow arbitrary ride type changes" in the ride cheats menu at the time, but can also be enabled in Object Selection (require the cheat menu to be enabled in the options menu). The Single Rail Roller Coaster Trains were implemented during v0.4.2's development.

Single Rail Roller Coaster features many special track elements including inversions and new special track elements were implemented in v0.4.2 including Large Half Corkscrews, Medium Half Loops, Zero G Rolls, and Large Zero G Rolls.

Large Half Corkscrews (left or right) start from a straight track to an inverted track, or from an inverted track to a straight track. They turn and invert 3 units forward and 2 units left or right (occupying 6 units including the center of the turn) and are 7.5 m (25 ft) tall.

Medium Half Loop (left) and Medium Half Loop (right) are new special track elements implemented in OpenRCT2 v0.4.2. Larger than a regular Half Loop (renamed to Small Half Loop on this ride) but smaller than a Large Half Loop. They start from an up-sloped track to an inverted track, or from an inverted track to a down-sloped track. Not counting the steep tracks to use them, they are 3 straight track units long and 15 m (55 ft) tall and 1 unit left or right, covering 2 units invertedly, occupying 5 units.

Half Zero G Rolls (left or right) can be performed from an up-sloped track, which inverts the track. Another half Zero G Roll ends on a downslope. The larger variations are performed from an up-steep track and another large half Zero G Roll ends on a down-steep track. The medium-sized variations are 3 straight track units long and 1.5 m (5 ft) tall while the large-sized variations are 4 straight track units long and 10.5 m (35 ft) tall.

Other features the Single Rail Roller Coaster includes are short long steep to straight tracks like Vertical Drop Roller Coaster and Wooden Wild Mouse, sloped turn to bank, steep chained lift hills, and 90° vertical drops with vertical twists, but no helixes. As of April 5, 2023 during the development for v0.4.5 of OpenRCT2, large sloped turns were implemented in the Single Rail Roller Coaster and Hybrid Coaster, allowing players to make 45° large upward or downward turns while sloped up or down respectively.

Special Track Sections

 * 'S' Bend (left and right)
 * Small Half Loop
 * Half Corkscrew (left and right)
 * Brakes
 * On-ride photo section
 * Barrel Roll (left and right)
 * Quarter Loop
 * Block brakes
 * Large Half Corkscrew (left and right)
 * Medium Half Loop (left and right)
 * Zero G Roll (left and right)
 * Large Zero G Roll (left and right)

Constraints

 * Maximum track slope - 90°
 * Maximum height above ground - 135 ft (40.5 m)

Vehicles

 * Single Rain Roller Coaster Trains: Roller coaster trains with lap restraints, capable of steep drops and inversions (1 passenger per car, 5–12 cars per train)

OpenRCT2

 * None

In Real Life
The first two single-rail roller coasters to be developed were Wonder Woman Golden Lasso Coaster at Six Flags Fiesta Texas on May 12, 2018, and RailBlazer at California's Great America on June 14, 2018. Both rides were built by Rocky Mountain Construction and had similar track designs but mirrored. RMC, famous for their hybrid roller coasters, have also constructed other single-rail roller coasters as well. The Single Rail Roller Coaster in OpenRCT2 is based on the RMC Raptor.

Intamin has also constructed a Hot Racer-styled single-rail roller coaster at Luna Park Sydney, which opened in 2021.

Skyline Attractions developed Harley Quinn Crazy Coaster for Six Flags Discovery Kingdom in 2018, which was later removed, as well as Tidal Twister for San Diego in 2019. Two unnamed P-Sghetti Bowl-styled single-rail roller coasters are currently under construction at Six Flags Fiesta Texas and Six Flags Over Georgia to be opened in 2023.