12 Secrets of Roller Coaster Designers

People ride a spinning roller coaster in the Santa Cruz Beach Boardwalk Park
People ride a spinning roller coaster in the Santa Cruz Beach Boardwalk Park
hanusst/iStock via Getty Images

Back in the early 20th century, engineers attempting to push the limits of roller coaster thrills subjected riders to risky upside-down turns and bloody noses. A century later, coaster designers rely on computer software, physics, and psychology to push the limits of the roughly 5000 rides in operation worldwide. To get a sense of what their job entails, Mental Floss spoke with several roller coaster specialists about everything from testing rides with water-filled dummies to how something as simple as paint can influence a coaster experience. Here’s what we learned.

1. Getting strapped in might be the most exciting part of the roller coaster ride.

Known as a “thrill engineer,” UK-based Brendan Walker consults with coaster manufacturers and parks on the psychology of riding the rails. In his experience, riders getting secured into their seats are at the peak of their excitement—even more so than during the ride itself. “The moment the lap bar is being locked down and you have that feeling of things being inescapable, that you have to suffer the effects of the ride, is the highest moment of arousal,” Walker says. “The actual ride might only achieve 80 percent of that excitement.”

2. Designers test roller coasters with water-filled dummies.

Bill Kitchen, founder of U.S. Thrill Rides, says it can take anywhere from two to five years for a coaster to go from idea to execution. Part of that process is devoted to the logistics of securing patents and permits for local site construction—the rest is extensive safety testing. “We’re subject to ASTM [American Society for Testing Materials] standards,” Kitchen says. “It covers every aspect of coasters. The rides are tested with what we call water dummies, or sometimes sandbags.”

The inanimate patrons allow designers to figure out how a coaster will react to the constant use and rider weight of a highly trafficked ride. The water dummies—which look a bit like crash test dummies, but filled with water—can be emptied or filled to simulate different weight capacities. Designers also sometimes use the kind of crash-test dummies found in the auto industry to observe any potential issues prior to actual humans climbing aboard.

3. Every foot of roller coaster track costs a lot of money.

Thrill seekers go upside-down while riding on the Mind Eraser roller coaster in Agawam, Massachusetts
Thrill seekers go upside-down while riding on the Mind Eraser roller coaster in Agawam, Massachusetts
Kirkikis/iStock via Getty Images

There is absolutely nothing random about the length of a coaster’s track. In addition to designing a ride based on the topography of a park site, designers take into account exactly how much space they’ll need to terrorize you and not an inch more. When England’s Alton Towers park was preparing to build a ride named TH13TEEN for a 2010 opening, they asked Walker exactly how much of a drop was needed to scare someone in the dark. “It was a practical question,” Walker says. “For every extra foot of steelwork, it would have cost them £30,000 [roughly $40,000].”

4. Rollercoaster Tycoon brought a lot of people into the business.

The popular PC game, first released in 1999, allowed users to methodically construct their own amusement parks, including the rides. As a proving ground for aspiring engineers and designers, it worked pretty well. Jeff Pike, President of Skyline Attractions, says he’s seen several people grow passionate about the industry as a direct result of the game. “I remember when the game first got popular, I would go to trade shows and there would be kids looking to get into it using screen shots of rides they designed. The game definitely brought a lot of people into the fold.”

5. Paint makes a big difference in coaster speed.

A group of tin metal cans with colorful paint
scanrail/iStock via Getty Images

For all of their high-tech design—the software, fabrication, and precise measures of energy—a good coaster ride can often come down to whether it’s got too much paint on it. “The one thing that will slow down a steel coaster is a build-up of paint on the track rails,” Pike says. “It softens where the wheel is rolling and hitting the track, which increases the drag.” A good, worn-in track will have gray or silver streaks where the wheel has worn down the paint, making it move more quickly.

6. A roller coaster’s skyline is key.

Brian Morrow, former Corporate Vice President for Theme Park Experience at SeaWorld Parks and Entertainment, says that the looming curvature of coasters spotted as guests drive toward and enter the park is very purposeful. “It’s like a movie trailer in that we want you to see some iconic coaster elements, but not the whole thing,” he says. “You approach it with anticipation.”

7. Some coasters arrive as giant model kits.

Whether a coaster’s theme or design comes first is largely left up to the end user—the amusement park. But for some rides, manufacturers are able to offer pre-fabricated constructions that designers can treat like the world’s biggest Erector Set. “Sometimes I work on rides that have already been built,” Walker says. “They’re produced by a company and presented almost like a kit with parts, like a model train set. There’s a curve here, a straight bit here, and you can pick your own layout depending on the lay of the land.”

8. Wooden roller coasters are weather-sensitive.

If you’ve ever been on a wooden coaster that seems a little shaky from one trip to the next, check the forecast: It might be because of the weather. Pike says that humidity and other factors can shrink the wood, affecting how bolts fit and leading to a slightly shakier experience. “The structure itself can flex back and forth,” he says. It’s still perfectly safe—it just takes more maintenance to make sure the wood and fasteners are in proper operating condition. A well-cared-for wooden coaster, Pike says, can usually outlast a steel model.

9. The time of day can affect the coaster experience.

“A coaster running in the morning could run slower when cooler,” Morrow says. “The wheels are not as warm, the bearings are warming up. That could be different by 2 p.m., with a slicked-up wheel chassis.” Coasters experiencing their first-ever test runs can also be slightly unpredictable, according to Pike. "Those first trial runs [during the testing phase] can be slow because everything is just so tight," he says. "A lot of coasters don't even make it around the track. It's not a failure. It's just super-slow."

10. Roller coaster designs can come from unusual places—like Jay Leno’s chin.

The twisting, undulating tracks of coasters can often be the result of necessity: Pike says that trees, underground piping, and available real estate all inform designers when it comes to placing a ride in a specific park. But when they have more freedom, coasters can sometimes take on the distinctive shape of whatever happens to be around the designers at the time of conception. “We had a giant piece of land in Holland that just had no constraints, and we were sitting around talking," Pike says. “And we started talking about Jay Leno’s chin.” The ride was a “loose” representation of the comedian's jaw, but “it is there.”

11. Roller coaster riders double as performers.

A woman taking a ride on a rollercoaster at Oktoberfest in Munich, Germany
A woman taking a ride on a rollercoaster at Oktoberfest in Munich, Germany
exithamster/iStock via Getty Images

For Walker, the best advertising for a coaster is having spectators watch riders de-board after an exhilarating experience. “It’s all about that emotion,” he says. “A spectator basically asks, ‘What’s making them so aroused? What’s giving them such pleasure?’ The line for the ride is the audience. Imagining yourself on the structure becomes a very powerful thing."

12. The future of coasters is vertical.

Biggest, fastest, longest—coasters are running out of superlatives. Because rides can only be designed with so many drips, rolls, or G forces, some companies are looking to the sky for their next big idea. Kitchen has been overseeing design of the Polercoaster for years: It’s a sprawling, skyscraper-esque ride that uses electromagnetic propulsion to carry riders upwards instead of across horizontal tracks. “We want to put it in places where land is very expensive, like the Vegas strip,” he says. “You can only do that if it takes up a lot less space.” The project is set to exceed the 456 feet of the current tallest ride, Kingda Ka at Six Flags in New Jersey. “It’ll be the world’s tallest—and hopefully the most fun.”

This list first ran in 2017.

10 Secrets of Seeing Eye Dog Trainers

Seeing Eye instructors with the dogs they are training.
Seeing Eye instructors with the dogs they are training.
The Seeing Eye

Founded in 1929, The Seeing Eye is a nonprofit in Morristown, New Jersey, that trains guide dogs to help their blind owners navigate the world safely. In order to make sure each dog is ready for all the obstacles and challenges that come with leading the visually impaired, instructors train them in both real-world settings and simulations at The Seeing Eye's campus. It's a system that has worked for over 90 years.

“It’s the oldest guide dog school, and we’ve been honing this very specific process of training a dog to do very specific tasks,” Brian O’Neal, a guide dog mobility instructor with The Seeing Eye for nine years, tells Mental Floss. “We have a road map.”

Seeing Eye dogs are venerated; in January 2020, New Jersey proclaimed them the official state dog. And legally, no guide dog can even be called a "Seeing Eye dog" unless it graduated from the school itself. Though the dogs that come out of the school have garnered plenty of attention, the dedicated instructors who prepare them for working life are less well-known. We spoke with three trainers from The Seeing Eye about why certain breeds make great guide dogs, how they keep their owner’s safe from low-hanging branches, and whether or not they can read cross signals (spoilers: They can’t).

1. It takes years of apprentice work to become a Seeing Eye Instructor.

Being a Seeing Eye instructor isn't a volunteer position anyone can sign up for—it's a full-time job. If you meet the basic requirements, such as having a four-year Bachelor’s degree, you can apply to become an instructor. Once you make it through the application process, you go through a three-year apprenticeship program in order to become an official trainer. The apprenticeship includes classes and exams, as well as hands-on training with dogs and students, The Seeing Eye’s name for blind people preparing to become guide dog owners.

The work doesn’t become any less intense when apprentices graduate to full-fledged instructors. From 7:45 a.m. to 4:30 p.m., they train, exercise, and care for eight dogs total—four in the morning and four in the afternoon. If you aren’t ready to commit to working for The Seeing Eye full-time, you can volunteer to be a puppy raiser and foster future guide dogs in your own home.

2. Seeing Eye dog instructors also train the dog owners.

The dogs and their trainers aren’t the only ones working hard at The Seeing Eye. Before a blind person can take a guide dog home, they must live on the campus and go through weeks of training to learn all the intricacies of working with their dog, including navigation and bonding.

“A student is someone who’s applied to our school and [has] been accepted to our program, and we’ve flown them here or provided travel to come here,” O’Neal explains. “We match them with a dog, and over 27 days, we teach them how to safely and effectively work with this dog and vice versa. Once they’ve completed the program, they become graduates.” But to get there, the instructors, students, and their dogs have to put in long hours.

“Class is emotionally and physically exhausting," Sarah Indano, who's been in the apprenticeship program for two and a half years, tells Mental Floss. "It's like boot camp to really train these people for everything they need in a limited amount of time."

3. The Seeing Eye instructors only work with dogs bred by the organization.

The Seeing Eye in Morristown, New Jersey.
A photo of The Seeing Eye campus in Morristown, New Jersey.
The Seeing Eye

The Seeing Eye breeds all its own dogs at a center in Chester, New Jersey, and each must meet a strict set of requirements to become a part of the breeding program. “All the dogs are medically tested and their temperaments are also tested,” Ruthanne Dewey, a guide dog mobility instructor at The Seeing Eye for more than six years, tells Mental Floss. “The best of the best are selected to go into that breeding program.”

Even with the proper pedigree, not every dog the organization breeds is fit to be a guide animal. At 7 weeks old, dogs are sent to live with volunteers called puppy raisers who provide them with care and teach them basic commands. When the dogs are about 14 months old, they receive medical testing to determine if they’re fit enough to train to be guide dogs. From there, the training, which O'Neal says involves a lot of "repetition and consistency," lasts four months.

4. Instructors typically work with a handful of choice breeds.

Seeing Eye instructor with a yellow Lab.
Seeing Eye instructor Ruthanne Dewy with a yellow Lab she trained.
Seeing Eye/Ruthanne Dewy

Seeing Eye dogs almost always belong to the following groups: Labrador retrievers, golden retrievers, German shepherds, or any mix of those breeds. Both physically and personality-wise, these breeds produce the best dogs for the job. “They are working breeds,” O’Neal says. “They have a long history of work and working alongside humans in varying capacities. So it comes down to their drive to work as well as their incredible temperament.”

This drive to work often translates to a desire to please their humans. As O’Neal states, trainers can only teach dogs so much, and an animal’s need to keep their owner happy is what ultimately allows them to do their job well. “They want to get the praise from that person. They want to figure out, ‘what does this person want me to do? Because I’ll do it.’”

These breeds also fit the physical requirements for a guide animal: They’re big enough to lead a person down the street or block them from traffic, but at the same time, small enough to fit on public transportation or beneath an office desk.

5. Praise is crucial during the training process.

Seeing Eye dogs may not know the directions to the supermarket, but they're trained to learn other tasks that enable their owners to move through their environments with confidence and security. These include stopping short of curbs, moving around objects, and blocking people from walking in front of vehicles. Dogs learn these skills through positive reinforcement—as much as it takes to make the behaviors second-nature.

“When the dog does something right, we’re showering it with love and affection telling it did a great job, and if it didn’t do a great job, we’re telling it ‘no, we don’t do it that way,’ and we’ll always go back and give them the chance to be successful,” O’Neal explains. “That’s important, because if we just said 'no' and moved on, I could see animals being discouraged by that."

6. Seeing Eye instructors can’t teach dogs to read street signs.

Seeing Eye instructor with a black Lab.
Seeing Eye instructor Brian O'Neal with a black Lab he trained.
Seeing Eye/Brian O'Neal

A Seeing Eye dog can navigate obstacles on a sidewalk, or stop a person from stumbling off a curb, but Seeing Eye instructors can't train them to replace a GPS. “I get asked all the time how the dog can read the stop light and know that green means go and red means stop,” Dewey says. “I always explain to people that it is not the dog that decides when to cross the street. The dog doesn’t know how to get to the grocery store. All that falls on the person. The blind person has to be able to cross the street safely.”

7. The Seeing Eye has escalators and Priuses on campus to simulate real-world obstacles.

The more advanced stages of Seeing Eye dog training take place in urban areas, starting in the center of Morristown and culminating in trips to New York City. But before the dogs are ready to enter the real world, trainers find ways to recreate those environments on the campus.

“We have our own maintenance department and mechanic that is in charge of our own fleet of vehicles,” O'Neal says. These cars are used to prepare dogs for the type of traffic they'll encounter when guiding their owners in public. “We also have Priuses so we can make sure the dogs are learning to steer clear of cars that are silent as well.”

The campus also has plenty of indoor obstacles designed for training, like staircases and an escalator that's housed on the grounds.

8. Some obstacles require some surprising training equipment.

Training a dog to look out for objects in front of it—like cars or pedestrians—is fairly straightforward. Making sure they’re aware of obstacles above ground-level poses more of a challenge to instructors. For these lessons, trainers use some unexpected equipment. “We have an obstacle course with overhead pool noodles that stick out to make sure the dogs are watching out for the top part of the person, too,” O'Neal says.

Instructors don’t know what size a dog’s owner will be during the training process, but that hasn't been a problem so far. Incredibly, the dogs are able to figure out the height and width of their humans on their own. “If you’re an instructor that’s really short, but that dog goes to a person that’s really tall, that dog quickly learns and adapts that they have to look out for [obstacles] that are much higher,” O'Neal says. “To me that’s one of the most amazing parts of the job; how much the dogs adapt and do on their own that we don’t teach them and can’t teach them.”

9. Seeing Eye apprentices take classes on the human eye to learn more about visual impairments.

Every instructor’s apprenticeship includes courses on dogs and dog training, but they also take classes to learn about the vision issues faced by the students. “I’m currently studying for my second exam, which is on the human eye and diseases and disorders of the eye and optic nerve,” Indano says, likening these classes to a college course. “It gives us the basis of the language we use to communicate with our students. We’re reminded that not only do our students see us as dog professionals, but they also see us as vision professionals, as well.”

This level of understanding is made even greater during Blindfold Week—which exactly what it sounds like. “We wear a completely dark blindfold for one week, and we live with the students for the first week of class,” Indano says. “We’re given some prep on how to effectively use a cane for travel for the first two days of class, and are taught how to cross streets, how to judge traffic, and keep ourselves safe."

The apprentices are even paired with a dog during Blindfold Week, effectively putting them through the same training as the students. "It gives you a lot of insight into what these students are going through," Indano says.

10. Seeing Eye instructors don't prepare dogs to work 24/7.

Seeing Eye instructor with a black Lab.
Seeing Eye instructor Sarah Indano with a black Lab she trained.
Seeing Eye/Sarah Indano

Seeing Eye dogs don’t have the time to chase squirrels, accept pets from strangers, or sniff trash cans when they’re on the job, but that doesn’t mean they never get to enjoy being a regular dog.

“People think these dogs don’t ever get a break,” Indano says. “They put on their business suits, which for them is their harness, and they’re at work. When they go home, their business suit comes off, and they get to be a dog that their person can snuggle and give pets to and play fetch with ... They live and love to work for their owners, and they get to go home and get even more love.”

13 Behind-the-Scenes Secrets of Dog Show Handlers

Sarah Stier/Getty Images
Sarah Stier/Getty Images

Every year, roughly 3000 dogs from around the country flock to Madison Square Garden to strut their stuff at the Westminster Kennel Club Dog Show. In all, some 190 breeds can enter the ring, each competing to look and act exactly as required for their breed’s ideal standard. But it takes a lot of hard work from dedicated handlers to produce a dog that can compete with the best of them. “What you see at Westminster, that’s the very final touch,” says Karen Mammano, who handles dogs with her husband, Sam. “That’s the final product of everything we do.” We talked to a few handlers who have been at Westminster about what goes into training a dog with a shot at Best In Show.

1. The dogs have treadmills.

Among the qualities the judges take into consideration is the dog’s trotting pace. Many handlers put their pups on doggy treadmills set at a certain speed to get them used to keeping a particular trot. “It teaches them foot timing and the right kind of gait we want them to have,” Mammano says.

Some doggy treadmills cost more than $1000. But, according to dog handler Sharon Rives, that’s just part of these athletes’ training routine. “They’re developing their muscles just like any athlete,” she says, “any runner or football player or any athlete that has to train muscles to do something over and over again.”

2. Soup cans might be a dog handler’s best friend.

Judges also look closely at a dog’s stance—how it holds itself while standing still. “It’s kind of their supermodel stance,” says Rives. Every breed has an ideal stance, but teaching a dog to maintain that position while a judge pokes and prods often takes some creative training techniques. According to Rives, when her parents trained dogs in the 1980s, they used to have the dogs stand on four soup cans placed the correct distance apart.

“Everybody has their own way of doing it,” she says. “Now I have what we call stacking blocks, sort of a wooden device with four feet on it for the dogs to stand on and it’s adjustable. I start when they’re puppies with that and they stand on it for a couple minutes and as they get older they spend more time on it, maybe 15 or 20 minutes a day, to help train their muscles and body to remember to stand in that correct position.”

3. The dogs have ridiculously long names.

'Flynn' the Bichon Frise, with handler Bill McFadden, poses after winning 'Best in Show' at the Westminster Kennel Club 142nd Annual Dog Show in 2018
'Flynn' the Bichon Frise, with handler Bill McFadden, poses after winning 'Best in Show' at the Westminster Kennel Club 142nd Annual Dog Show in 2018
TIMOTHY A. CLARY/AFP/Getty Images

Professional pups have very fancy monikers that reflect their pedigree. For example, Rives’s Australian Shepherd answers to “Wiggle,” but her full name is “Veritas Sexy and I Know It.”

“Typically the prefix of the name is the kennel the dog is from,” she explains. “Veritas is my kennel name, so whenever I breed a dog, every dog has the word veritas in their name.” As for the rest of Wiggle’s full name, Rives says the litter theme was Top 40 Songs, so every puppy had a different song title in its name.

4. Handler cars must be inspected.

According to Mammano, the American Kennel Club inspects handlers’ vehicles before they can be listed as a "registered handler." What are they looking for? A car that could keep a dog alive in the most dire of conditions. “We have a generator, air conditioning, heat, a 30-gallon water tank,” she says. “We have to have fire extinguishers that haven’t expired and a heat monitor in the vehicle so if the air conditioning goes out the monitor knows. We’re pretty much self-contained.”

5. Dog shows aren’t natural.

Handlers are the first to admit that dogs weren’t made to trot around a ring. “Golden retrievers were never meant to run in circles in a show ring,” Mammano says. “They were meant to be out hunting and doing that job and other breeds were meant to be out pulling sleds. So I try and make it as fun for them as possible.”

6. There’s one quick way to get disqualified.

“If a dog bites a judge or a handler or another dog, that’s pretty much it for the rest of its career,” Rives says. “Aggression is not ever acceptable.”

7. You’re not a real handler until …

... you trip and fall in the ring. “I think we’ve all had a moment where we’ve fallen,” Rives says. “That’s always embarrassing. But I think I like to say that’s sort of like the dog show hazing. You haven’t been fully initiated into dog showing until you’ve completely wiped out in the ring.”

She also shares a hilarious story of one of her earliest shows, when she was just 16 years old. “Normally I use hot dogs or string cheese as bait, something I could put in my mouth, and I happened to only have liver that day, which I’m not gonna put in my mouth. I was wearing a suit that didn’t have pockets, but I had panty hose on so I thought I’ll just real slyly stick this in the waistband of my pantyhose under the flap of my jacket and when I need some bait I’ll just break off a little piece. Well, the liver made its way down the waistband of panty hose to my ankle and dog starts licking it. The judge is going, ‘Ma’am, the dog is licking your leg.’ I was just mortified.”

8. Handlers’ wardrobe choices are strategic.

When deciding what to wear for the big day, handlers have to make sure they’re not overshadowing the dog with fancy flair. “You want to dress to complement the dog’s colors,” Rives says. “If you’re showing a black dog you don’t want to wear a black skirt because then you’re obscuring the dog.”

The more prestigious the show, the better the handlers dress. “We always joke that last week was fashion week for us because we were all trying to get suits for Westminster,” says Mammano.

And for the bigger shows, they invest in nice footwear, not only because they’re on their feet all day, but because their feet and ankles are going to be on TV. Rives is wearing the shoes she wore to her wedding. “They’re little silver ballet flats that have sparkly crystals on the toes,” she says.

9. It’s hard on the body.

Co-owner and handler David Fitzpatrick holds Pekingese Malachy after winning Best in Show at the Westminster Kennel Club Dog Show in 2012
Co-owner and handler David Fitzpatrick holds Pekingese Malachy after winning Best in Show at the Westminster Kennel Club Dog Show in 2012
Michael Nagle/Getty Images

“A lot of my peers have had their knees and hips replaced,” says David Fitzpatrick, a professional handler who works with the Pekingese breed. “You get tired just from being at the show.” And because dogs are always making left-hand turns in the ring, the handler’s left leg tends to take a beating.

10. They have lucky leashes, toys, and rubber bands.

Dog show people are quite superstitious. Fitzpatrick, for example, has a lucky leash. “I have one I’ve been using probably since 2004 because I know many dogs have had great success with it,” he says.

Mammano won’t re-use a leash once it’s been used on a winning dog, opting instead to retire it. And she always wears three rubber bands around her arm to hold her number.

Also, Fitzpatrick says some owners carry around special toys for dogs, similar to the “busy bee” in Best In Show. “Most of these dogs do have a favorite thing and when you go into the ring and you can’t find that toy you do kinda go crazy like ‘Where is the busy bee?!’”

11. The dogs eat whatever they want.

Well, in the ring at least. “I had one dog way back in the early 2000s and all he wanted was filet mignon,” says Fitzpatrick. “He wouldn’t take chicken or liver, but the filet he would eat. So they get whatever they like. Or I had a Pomeranian that only liked potato chips. I had another dog who liked apples.”

12. Chalk and dryer sheets keep the dogs looking sharp.

Show dogs are some of the most pampered, well-groomed dogs in the world, but it takes a lot of work. “Every breed is going to have their own quirky thing they do to make the coat look a certain way,” Rives says. “One handler told me you should put dryer sheets on a wavy coat. Others say you should wash your dog’s coat in Dawn dish soap if you want it to be straight.”

Chalk is often used to make a dog’s coat look whiter, Fitzpatrick says. “Whatever it is to make the dog look better for the show, there’s probably a product out there for it.”

But according to Rives, grooming is a taboo topic among handlers because “people don’t want to share their secrets, and because there are things that are not allowed.” Indeed, too much grooming is considered cheating, so owners keep their tips and tricks to themselves. And if a handler sees another handler crossing the line, they’ll snitch. “It’s a self-regulating sport,” Rives says. “If you see somebody doing something they shouldn’t be, you’d report it.”

13. Best in show doesn’t come with a cash prize.

“You don’t win any money,” says Fitzpatrick, who won Best in Show at Westminster in 2012 with his Pekingese Malachy. “You get trophies and a lot of swag. We came home with bags of loot, but not one penny. It’s not about the money. It’s about competing at this historic event.”

This list first ran in 2016.

SECTIONS

arrow
LIVE SMARTER