Six Flags Over Texas announced in November 2024 that they would open a record-breaking dive roller coaster for the 2026 season. Codenamed Project Rubi, the dive coaster project appears set to live up to its lofty promises.
Recent filings with the Federal Aviation Administration (FAA) indicate proposed heights for twenty-one sets of coordinates spread across the site of the recently removed La Vibora bobsled coaster. The lowest clearance marked is 165 feet, where a cluster over the parking lot rises as high as 309 feet. If accurate, this would place it in a select club of coasters commonly referred to as “Gigas.”
FAA filing for rumored Six Flags Over Texas 2026 B&M dive coaster
What is a Giga?
The term “giga” refers to coasters that stand (or with a drop) between 300 and 399 feet tall. It was nominally used by Cedar Fair during the 2010s to build the biggest and fastest coasters at their flagship parks. Bolliger & Mabillard (B&M) contributed three giga coasters during this time: Leviathan at Canada’s Wonderland in 2012, Fury 325 at Carowinds in 2015, and Orion at Kings Island in 2020.
However, the 300-foot barrier is scarcely broken, as the Giga was born purely for marketability rather than necessity. The 2000s and 2010s saw a fiercer focus on building the largest and most record-breaking coasters possible, although the trend has since subsided in favor of developing more cohesive park experiences. Gigas do serve as great headliner attractions and ridership magnets, but generally, the same experiences can be offered with a more economic hyper coaster at 200 feet.
Old habits die hard at Six Flags, evidently. Last year, the idea was publicly surveyed for Kings Island, Carowinds, Six Flags Magic Mountain, Six Flags Over Georgia and, most recently, Six Flags Over Texas in August. It’s no secret that the newly merged corporation was debating how to invest in their expanded theme park portfolio.
Six Flags Over Texas 2026 Coaster Guest Survey
What’s Next?
Based on the filings, construction will take place during a 12-month period beginning in March 2025. At this point in time, both La Vibora and the train roundhouse have been demolished, paving the, way for groundwork and foundations.
Per the coordinates filed, the largest and highest cluster of height markers appear to form a left-hand turn over the parking lot. The stomach-churning 300-foot vertical (or beyond!) drop will take place over the entrance path and pull out into a 225-foot Immelmann inversion, a common trademark of Dive Coasters. From there, it becomes necessary to burn off speed within the constrained footprint, an intent matched by two visible element peaks at 184 feet and 167 feet. Only the designers know how the layout continues from there.
Six Flags Over Texas 2026 Coaster Height Markers
The coming year is poised to be significant for the Dallas-Fort Worth metro. The family market will see stiff competition with the opening of Peppa Pig Theme Park next month, followed by Universal Kids Resort in 2026 and a handful of waterparks in various stages of development. Six Flags Over Texas is prepared to pull thrillseekers with something big, and as they say, everything’s bigger in Texas.
Would you be able to stomach a 300-foot-tall B&M Dive Coaster? Let us know in the comments section below.
Let’s imagine a RACING COASTER. The tallest, highest, fastest (from launch), steepest oh and LOUDEST roller coaster in the world, ALL IN ONE ROLLER COASTER with RACING PASSENGER CARS. Instead of Creeping up to the highest point and diving to get top speed, both passenger cars (each can carry 15-20 passengers at one time) are launched simultaneously on steel tracks that are parallel and mirror each other. No one track has advantage over the other. Both Launched like Mr. Freeze at around 65mph for 10 seconds, then THE RACING begins, the LOUDER THE PASSENGERS THE FASTER THE CARS (that’s how the race is determined, THE LOUDEST CAR MEANS THE FASTEST CAR. How it works is after the 10 second lauch, Sensors and monitors (positioned all around the coaster) record the LOUD SCREAMING PASSENGERS and signals the cars to go faster. From the 10 second mark (65mph), the cars go faster (to a max speed of 85mph-90mph) til around the 55-60 second mark (which only 1 quarter 1/4 of the track is complete. 60 seconds and 3 quarters 3/4 of the track to go, so really whichever car hits top speed within 1 minute wins. Now at 85-90mph and nothing but thrill, each car will experience the same only one car is lead. Passengers enjoy, loops, twist, turns, dives and inversions unique and first of its kind, with pitch black tunnels that’ll leave each breathless. Guaranteed to have best experience imaginable. With most of it’s steel track commensing most of the parks acreage. Let’s call it “IDENTICAL STEEL” or “TEXAS TWIN STEEL”. The idea is amazing but I may need a little help naming it.
650 feet tall, heck 85-90mph ain’t the fastest, (that honor is 149mph) but we can’t have roller coaster cars racing each other at those speeds that kinda speed will get you arrested on roads in Texas but if 90mph isn’t fast enough we can adjust it to be the fastest in the world. With over 10,000 ft of track spaning almost 5 minutes long, the longest and darkest tunnels involve state of the art embankments (first of its kind) while corkscrewing to zero gravity as the cars RACE out of the DARK TUNNELS into mind blowing, breath taking 180 feet tall loops that’ll make any person SCREAM. Not to mention speeding around the whole park at unimaginable speeds, the scenery is so captivating. Imagine seeing AT&T Stadium and Globe Life from 640 feet at speeds so fast that’s illegal on the streets. One car resembles a Lamborghini and the other a Ferrari, or for those who like more domestic what about a Camero and a Mustang. The most inversions and corkscrews you’ll ever see on a roller coaster. Oh, just in case, BRING A CHANGE OF CLOTHES. Another name could be “The Texas Backbone” since RACING is a regular in Texas and sometimes called the backbone.
Open as the top 5 fastest but Texas wants more and eventually within a few years will become rhe fastest. We can call it “Furiously Fast” or “Light Speed” giving the fast speeds. Just a fantasy but hey Sux Flags Over Texas, if you wanna put this idea into action I would love to see it happen.