The Motion Blog | CXC Simulations - Professional Racing Simulator & Flight Simulator for home use

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Stefan Johansson

F1 and Sportscar Driver
“The Motion Pro II is about as close to reality as you can get. I was amazed how real it feels. It’s a great tool for professional [...] signature-Stefan Johansson

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Patrick Long

Porsche Factory Driver
“Easily the best simulator I’ve been on to date. It’s just more realistic. There’s less exaggerated motion, motion [...]

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Vaughn Gittin, Jr.

Formula Drift Champion
“The CXC Simulators definitely blew my mind! I really enjoy sims as a training tool and these simulators bring the movement that the body [...] signature-Vaughn Gittin, Jr.

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Oriol Servia

INDYCAR DRIVER
CXC simulators are my favorite simulator that you can have in-house and at a reasonable cost...

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Christina Nielsen

IMSA GT Champion
I use CXC Simulations for training all the time on the circuits that I race in the IMSA WeatherTech SportsCar Championship and in the European Le Mans Series.

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Townsend Bell

IndyCar Driver and Former Formula 1 Test Driver
“The Motion Pro II is the most realistic simulator I’ve driven. For me, it’s an invaluable training tool.” Townsend Bell drove in the [...] signature-Townsend Bell

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Alessandro Balzan

2013 Grand-Am GT Champion
2016 IMSA GT-Daytona Champion
I am still super-impressed with the feeling I had when I was in the CXC Motion Pro II. It had the perfect steering wheel feedback, realistic motion movement, and a very accurate braking system. It's just like being in the car.

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Justin Wilson

LATE INDYCAR AND FORMULA 1 DRIVER
“The best simulator I’ve ever driven. The way it moves and even picks up track surfaces adds a whole new dimension.

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Tommy Kendall

SRT Viper Factory Driver
“Seat time is the only thing that will make you a better driver and with testing being curtailed more and more in the interest of cost [...]

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Alex Gurney

2007 and 2009 Grand-Am Daytona Prototype Champion
“Wow, I’m still shaking from it. It’s a little bit of a workout. I’m pretty impressed.” Alex Gurney is an American [...]

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Matt Halliday

Porsche Super Cup, GT3, V8 Supercar and Former IndyCar/Champcar Driver
“The Motion Pro II is by far the most accurate and best racing simulator I’ve ever worked with. Using the Motion Pro II is the best [...]

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Joel Miller

GRAND AM DRIVER
The CXC Simulator is a great tool to stay sharp and learn new circuits because it provides a real race car feel!  The engineers have done a great [...]

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The Motion Blog
January 30, 2020

One question that we are asked often is ‘why is a CXC Simulations simulator better than the other ones available on the market?’ We answer that question with a question of our own: ‘Which one feels the most realistic?’

Years of testing and evaluation have taught us that when it comes to simulators – responsiveness is key. Events and moments just happen at the same rate that they do in real time. Nuanced, high-fidelity movements must happen in a simulator as quickly and accurately as possible for the driver to experience an accurate and enjoyable racing experience. The car must pitch and yaw at the same rate as the real car. A curb must feel like a curb, rumble strips have to feel like rumble strips, and the unique sensation of the car’s weight shifting under heavy deceleration has to feel the same otherwise your brain won’t think you are in a simulator.

CXC Simulations engineers, who are active race car drivers, have a background in both racing and engineering and have applied many of the same techniques and principles that make race cars go fast around a racetrack to replicate the sensation of being on a racetrack. We’ll examine those now.

The Case For Seat Movers

Some competitors point to the fact that the CXC Simulations Motion Pro II moves only the driver and the seat as a negative mark on the product. But in fact, the opposite is true – what they are pointing out is the clear and obvious benefit of the Motion Pro II. We’ll use science to demonstrate it.

A simulator that moves the weight of the screens, driver and platform

Consider the response and speed of a simulator that must move the mass and inertia of the platform, screens, and driver of a simulator – approximately 550 lbs.

A simulator that moves the weight of the driver and platform

Now consider the difference in response with the additional mass and inertia of a simulator that moves its platform and driver – approximately 375lbs.

And finally, consider how much faster the response and speed of the simulator will be in a Motion Pro II which only moves the seat and driver – approximately 180lbs.

By minimizing the weight being moved and concentrating the power of the linear actuators onto the driver and seat, the driver will be moved at a rate of speed similar to being in a race car. But there are other considerations taken into account by CXC Simulations to increase the rate of speed. It takes a tremendous amount of power to not only move more mass, but also to move a simulator vertically to create a substantial “lift” feeling. The Motion Pro II balances the weight of the seat and driver on a center pivot, which supports the weight of the seat and driver and allows the actuator power to be concentrated on moving the seat.

Motion systems are error-driven, which means they are setting out a commanded position from an actual position. When a simulator moves a large amount of mass in a new direction, it must stop the mass which will introduce oscillations and flex that the motion system must now contend with. And the way that the heavy simulators compensate with this is to slow down, resulting in a sluggish, inconsistent and unrealistic response time.

Body Position

You may be wondering how, with the motion of the seat relative to the simulator, that the Motion Pro II can maintain a realistic driving experience. One thing to consider here is that the steering wheel, pedal set, and the seat are in fixed locations. What does change is the angle between these items as the seat moves around a stationary point under the seat, causing slight bending of the elbows and knees of the driver.

This phenomenon is called proprioception. These additional motions in the joints trick your brain into feeling additional motion, adding to the sensation of what it feels like to be in a race car. Hydraulic brakes and seatbelt tensioners add to the realism.

 

Consider the motions that 24 Hours of Le Mans winner Townsend Bell is going through in this video at the wheel of a Motion Pro II:

 and the motions that British Touring Car Championship driver Andrew Jordan goes through:

 

Math is Hard But it Proves Our Point

You may be familiar with Albert Einstein’s equation F = m*A, or Force is equal to Mass times Acceleration. In terms of simulators, you can consider this equation as A = F/m, or, Acceleration = Force/Mass. In a simulator, the force (F) is the available thrust force generated by the electric motion actuators, and the mass is the total mass that is being moved by the actuators.

So, we know that maximizing the force generated by the actuators will help to generate more force. But, minimizing the amount of mass that is being moved is critical to generating force. There is also a practical aspect to this in that there is limited available power. A standard US outlet is 120 volts AC and 15 amps max current draw, or roughly 1800 watts per circuit.

In short, to replicate the high-speed, high-frequency motions you experience behind the wheel, it is important that the simulator moves the driver’s body as quickly and efficiently as possible.

The Proof Is Behind The Wheel

If you’ve made it this far, you are probably very serious about racing and racing simulation. As we said in the beginning, the question you should ask yourself when considering a racing simulator is, ‘Which one feels the most realistic?’ We feel the low-mass, full-motion CXC Simulations Motion Pro II offers the most realistic driving experience available and many professional racers feel the same way. Let us know if you’d like to experience once and schedule your test drive today: Contact Us

About CXC

CXC Simulations is a manufacturer of high-end racing simulators for personal and professional use. Our simulators feature the latest technological developments to achieve realistic motion and car control systems.

CXC simulators can be used as a tool for driving instruction as well as flight training and are available for purchase, lease or event rentals. We offer superb customer service and support to make sure you are behind the wheel of your favorite Formula 1, GT or rally car for as much time as possible!”

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