Doble Loop

Roller coaster in Colombia
(Redirected from Quantum Loop)
Watch the on-ride POV
Doble Loop
Doble Loop in 2014. The ride's transportable base can be seen
Salitre Magico
Location Bogotá, Cundinamarca, Colombia
Coordinates 4°40′01″N 74°05′31″W / 4.666909°N 74.091965°W / 4.666909; -74.091965
Status Operating since 12 July 2004
Replaced by Whirlwind
Seabreeze Amusement Park
Location Rochester, New York, USA
Coordinates 43°14′03″N 77°32′36″W / 43.234040°N 77.543308°W / 43.234040; -77.543308
Operated 21 July 1994 to 2003
Cost $1,000,000 USD
Replaced by Whirlwind
Henry Vancraeyenest (France)
Location Travelling
Operated 1983 to 1990s
Manufacturer Soquet
Type Steel
Riders per train 24
Propulsion Chain lift hill
Area 66 metres × 26 metres
Height 23 metres
Drop 23 metres
Top speed 90 km/h
Length 860 metres
Inversions 2
Duration 1:40

Doble Loop is a steel roller coaster located at Salitre Magico in Bogotá, Cundinamarca, Colombia.



Quantum Loop, a two loop steel roller coaster, was originally constructed in 1983 by French roller coaster manufacturer Soquet as "Colossus" for French showman Henry Vancraeyenest and operated in the French fair circuits as a portable coaster.[1][2] While in France, the ride had red track and white supports.

Seabreeze, Rochester, NY

Quantum Loop arrived in Rochester, New York in 1993 to begin construction at Seabreeze Amusement Park. Skilled laborers from the Soquet company traveled from France to Rochester, NY in order to build the coaster (a condition of the manufacturer warranty).[1] The construction of the coaster was not without controversy, as zoning disputes and noise complaints abounded.[1][3] Despite the initial stumbling blocks, Quantum was all set to open for the 1994 season at the park.

On July 20, 1994 Quantum Loop, also nicknamed "The Q", passed all its required safety inspection and testing parameters set forth by the New York State Labor Department's Safety and Health Division.[4]

The following day, July 21, 1994 Quantum Loop opened at Seabreeze Amusement Park to great reviews and much fanfare. Inaugural T Shirts and French berets were distributed to fans brave enough to take a trip on the new steel coaster.[5]

Service Halted

In June 1997,[6] Quantum Loop experienced a series of mechanical failures. As a train made its way up the 75 foot chain lift hill, a ride operator activated an emergency stop. One of the restraints on the train was not functioning properly resulting in an emergency evacuation of the ride until repairs had been made.[7]

Later the same month, on Sunday June 21, 1997, tragedy struck the Quantum Loop as it came to a screeching halt at the bottom of the first drop.[6] After plunging the 75 foot drop, one of the coaster's 84 wheels jammed abruptly stopping the train and jerking riders from its top speed of 56 miles per hour to zero in seconds.[6][7][8] The incident sent nine people to the hospital with various injuries.[7] No deaths occurred. Seabreeze took an active role in the investigational process to further investigate the cause of the incident, conducting various engineering studies and surveys.[9] Manufacturer Soquet informed all other owners of their rides to make certain that similar coasters were inspected to ensure this incident did not occur again.[9] Upon further inspection by New York State officials, the cause of the incident was confirmed to have been caused by a wheel lock or jam.[6][7][8][9]

Quantum Loop would remain closed for the remainder of the 1997 season until Summer of 1998 at which time it would reopen and operate through the 2003 season.[10]

Salitre Magico, Bogota, Colombia

Quantum Loop was purchased by Salitre Magico, an amusement park in Bogota, Colombia.[11] The ride opened there on 7/12/2004 with a new name, Doble Loop and continues to operate at Salitre Magico in Bogotá, Colombia.[11]



The ride has two back-to-back vertical loops.

Color Scheme

Color Scheme By Coaster Alias & Date
Coaster Known As Track Color Support Color Barrier Colors Cue Path Cue Rails Dates
Colossus Red White Red/White Silver Red/White 1983-1993
Quantum Loop Yellow White Yellow/White Silver Yellow/White 1993-2004
Doble Loop Yellow White Yellow/White/Blue Silver White 2004-


2 trains with 6 cars per train. In each car, riders are arranged 2 across in 2 rows, for a total of 24 riders per train.

See also

Another Soquet-built travelling roller coaster, King, still operates in France.


  1. 1.0 1.1 1.2 "Seabreeze Takes Barred Quantum Leap".
  2. "Colossus - Henry Vancraeyenest". Coaster-Count.
  3. "Ride Goes Up Too Fast".
  4. "Test A Breeze For 'Ferocious' Thriller; Opens Today".
  5. "Seabreeze Park Patrons Give 'The Q" Stomach Up".
  6. 6.0 6.1 6.2 6.3 "Accident Report - NYS - Quantum Loop". Safeparks Database.
  7. 7.0 7.1 7.2 7.3 "Seabreeze Ride Had a Previous Safety Issue".
  8. 8.0 8.1 "Seabreeze Unruffled By Coaster Closing".
  9. 9.0 9.1 9.2 "Loop".
  10. "Seabreeze Prepares For New Season".
  11. 11.0 11.1 "Doble Loop Salitre Magico".