Designed for Aviation

450 mm

heave

+ 35 deg

pitch up

- 25 deg

pitch down

± 23 deg

roll

650 mm/s

actuator speed

200 kg

payload

10000 eur

excl tax & shipping

Optimized for aviation first

• Heave : 450mm
• High excursion actuators
• Large motion envelope
• Silent actuators

Versatile cockpit included

• Easy onboarding
• Large legroom
• Overhead panels attachements
• Embark your seat, screen, control peripherals...
• For flight or racing

Modular cockpit system

• Adapter plate available to attach popular rigs (Trakracer, Simrig, etc.)
• two-seat cabin option, ideal for flight schools

Heavy-duty & durable

• Steel architecture
• Few moving parts
• mechanical simplicity
• Built to last years without maintenance

High performance

• Industrial servomotors
• 24bits resolution smoothness
• Easy assembly

Pitch, Roll & Heave — the optimal combination for aviation simulation

In real flying, the most meaningful cues come from pitch, roll, and heave — how the aircraft tilts and how your body senses vertical acceleration.

By focusing on these three DOFs, we deliver high fidelity where it truly matters, eliminating unnecessary complexity and passing the savings directly on to our customers.

Enjoy authentic flight realism, in a large cockpit mover, without breaking the bank.

+ 0 deg

pitch up

A motion simulator optimized for Flight

Flight simmers have long been forced to repurpose racing simulators for motion — until now. The Gravideck Horizon motion simulator has been optimized natively for flight, offering an unparalleled, adrenaline-pumping flying experience.

High Excursions on Pitch, Roll, and Heave Degrees of Freedom

From the beginning, our goal with the Gravideck Horizon was to deliver the most realistic flight sensations for the best value.

We studied the most advanced motion simulators for flight, analyzed famous "flight" theme park rides, and experimented with countless prototypes.

From that R&D, we came to the consistent conclusion that certain degrees of freedom have little importance for the overall sensation of flying. That meant concentrating on the three degrees of freedom that matter most during flight : pitch, roll, and heave... and giving them large excursions

The importance of Heave for a good flight experience

Heave motion is a crucial component in a flight motion simulator. When an aircraft pitches up or down, heave simulates the vertical forces generated by the change in trajectory—similar in principle to how a car driver feels lateral forces when turning, but in the vertical direction. Heave also plays a key role in conveying turbulence, feel the texture of the runway and assess landing smoothness, offering haptic feedback that visual cues alone cannot provide. With the Gravideck Horizon's generous 450 mm of heave travel, these sensations are convincingly replicated.

Pitch: the unsung hero of motion simulation

Pitch is a key component in motion simulation, serving not only to represent changes in the aircraft’s attitude and angle of attack, but also as a surrogate for longitudinal accelerations. With a pitch range of +35° to −20°, the Gravideck Horizon has ample authority to accurately convey all phases of flight, from climbs and descents to level flight and approaches.

Roll: the chef’s kiss… when used correctly.

Some motion simulator manufacturers love to showcase dramatic roll angles during aircraft turns. The problem is that this is physically inaccurate. In reality, during a coordinated turn, the pilot initially senses a small roll as the aircraft banks, but almost immediately, centrifugal (lateral) forces counteract this, effectively “flattening” the sensation. Overemphasizing roll in a simulator can therefore create unrealistic cues. In a properly tuned system like the Gravideck Horizon, a ±23° roll range is used sparingly, complementing the forces generated by gravity and inertia rather than dominating them, to faithfully reproduce the subtle sensations of turning in flight.

Unlocking High Fidelity : Pitch & Roll axes above the user's head

Bad motion is worse than no motion at all.

Our choice to place the pitch and roll axes above the user’s head follows the latest research in motion simulation, including several PhD theses published in recent years. This design isn’t a gimmick—it directly corrects a fundamental flaw found in many motion simulators. (This video explains it well.)

Most consumer rigs rotate around the seat (awkward) or around the user’s chest (clumsy). These geometries distort the onset cues your vestibular system expects and can even produce inverted transient cues.

A classic example occurs during braking: in a real vehicle, your head, back, and torso move away from the seat until restrained by the belt. But with a poorly placed pitch axis, the simulator briefly pushes your head and back into the seat—exactly the opposite of what should happen! Repeated exposure to these incorrect cues greatly increases the risk of motion sickness, and the problem starts with improper pitch and roll axis placement.

The Gravideck MP5 solves this by placing both pitch and roll axes above your head, bringing the center of rotation close to your vestibular system. The result: correct transient cues, clean coordination sensations, and flight dynamics that feel coherent from takeoff to touchdown.

We believe that placing the axes of rotation above the user provides far more meaningful realism than adding extra degrees of freedom that are poorly tuned or improperly implemented.

General Aviation

The Gravideck Horizon was designed specifically to make your flight simulations alive. This includes the

Air combat

Racing simulations

While our primary focus with the Gravideck Horizon was to offer a premium motion simulator for Flight, its refined physics also offer exquisite driving sensations.

Easy onboarding

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Project Strategy

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Mobile Interface Design

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User Experience

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Gravideck MP5 3DOF motion simulator

Motion Controller : 1Ghz CPU - 24 bits motion resolution

Power: 500W (average) - 3 kW (peak)

Max actuator speed: 800 mm/s

Heave travel: 450 mm (±225 mm)

Pitch: +35° to -15°

Roll: ±15°

Payload: 200 kg

Most people think high fidelity motion simulators are giant and complex machines, usually found in flight schools or F1 racing team centers, costing anywhere from 10K to 10M euros.

The Gravideck MP5 is challenging this notion. It’s a simple, compact, quiet yet high fidelity home motion system that gives your body the physical cues your screen or VR headset alone can’t deliver.

Motion cues complement visual and auditive cues to create the ultimate immersive sensory symphony

The Gravideck MP5 is the fruit of several years of research & development and countless prototypes. Its goal: deliver high-fidelity & high-performance motion right out of the box.

No tweaking, no endless settings, no trial and error — just turn it on, and experience motion that feels light years ahead of anything else in its price range.

If you are new to motion simulation, the Gravideck MP5 is for you and we will assist you all along the way.

Bad Motion is far worse than no motion at all

Pitch & Roll Axes Above the User
Our decision to create a motion simulator where the pitch and roll rotation axes are placed above the user's head follows the most recent research in motion simulation, including several PhD theses published in the past few years. This choice isn’t arbitrary: it directly addresses a fundamental flaw that affects most of the motion simulation industry. (This video explains the issue particularly well.)

Focused on Pitch, Roll, and Heave Degrees of Freedom
From the beginning, our goal with the MP5 was to deliver the best possible motion sensations for the best value. That meant concentrating on the three degrees of freedom that matter most during flight and racing "cruise" phases: pitch, roll, and heave.

We knew it would be pointless to add surge and sway to a compact simulator, because these DOFs require enormous physical travel to feel realistic. With only 500 mm of stroke, you can barely reproduce anything beyond a brief jolt. Our earlier machine, the Axyom360, used 2 m × 2 m of travel for surge and sway—and even then, the sensations were intense but required a massive footprint. Bringing that scale of motion into a compact form factor simply isn’t feasible, and the MP5 was always intended to be a compact, practical machine.

The same limitation is visible in industrial-grade simulators below: their hexapods cabin cannot generate meaningful surge or sway on their own, so manufacturers must add enormous X and Y linear rails under the hexapod to render those DOFs properly.

These examples clearly illustrate why a compact system should focus on pitch, roll, and heave—the DOFs where it can truly excel.

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Large excursions of X, Y and Yaw motion

Advanced motion systems such as used by F1 teams and automotive manufacturers typically use "X-Y rails", large cables or gigantic actuators, to achieve translation motion along the X and Y axis simultaneously.
This machinery is notoriously heavy and expensive.

On the other hand, Gravideck AXYOM360 use state of art omnidirectional motion technology to achieve a comparable effect, at a substantially lower cost.

Optional Full-Vehicle Customization Service

Do you have a favorite airplane—that you’ve always dreamed of replicating?

With the MP5, we offer full customization services to bring that dream to life. Simply tell us what you want...a C172 cockpit, a private jet cockpit...and we will tailor the entire simulator to match your chosen aircraft or car.

From controls and ergonomics to carefully selected premium peripherals, we craft a faithful, high-quality replica that captures the true feel of your favorite machine.

A simple System - easy to operate

With only 3 motors and a minimal number of moving parts for the Gravideck MP5.. The system is mechanically simple yet can provide an array of exhilarating sensations for total immersion!

This simplicity also makes the system sturdy, very easy to operate and trouble-shoot, with little to no maintenance for the years to come.

Not a mere seat mover... The Gravideck MP5 is a cockpit mover

The MP5 uses 3 powerful servomotors to lift the user along with an entire cabin, complete with seat, screen and peripherals with a total payload of 200 kg.

Whether you prefer a VR headset instead of a screen makes no difference, the cockpit can accomodate both

We can entirely customize the size of the simulator to any dimensions. We can also use curved pushrods to increase the workspace if you need more, and powder coat the simulator to your preferred colors.

Gravideck AXYOM360
A motion simulator specifically designed for racing cars

We believe each type of vehicle needs a specific type of motion simulator. There is no "one size fits all" solution.
As an example, hexapod simulators are good to simulate civilian airplanes, but their performance in simulating racing cars is not acceptable.
The leading motion manufacturers hence came to the conclusion that large X-Y & Yaw motion were crucial for replicating high transient accelerations.
Gravideck's AXYOM360 succeeds in making those large motions available, without the need of heavy machinery.

Smart Search

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Fast Cloud Upload

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Who the MP5 is For Whether you’re a student pilot training for VFR or IFR certification and want to feel every pitch, roll, and acceleration like in the real cockpit, a hardcore simracer looking to take your racing experience to the next level with realistic motion, or simply a Gran Turismo enthusiast who wants to feel the speed and cornering like never before, the Gravideck MP5 is a perfect match. It’s designed for anyone who values immersion, precision, and the thrill of motion, bringing professional-grade sensations previously reserved for flight schools and high-end simulators directly into your home.

James / GamerMuscle

Tech Reviewer

Gravideck MP5
High Fidelity Motion Simulator
for racing & flight simulations

Most motion simulators compromise realism by placing their pitch & roll rotation axes in the wrong location, usually near the ground under the user. This creates a stream of severely incorrect motion cues during transient pitch & roll maneuvers.

The Gravideck MP5 corrects this with a unique inverted cradle architecture with pitch and roll axes placed just above the user's head. This stays true to how the body perceives transient and sustained accelerations.

Built for both enthusiasts and professionals, the MP5 offers high-fidelity motion in racing & flight simulations .

Combining modular architecture, industrial components, and deep physics insights, it is future-proofed, built to last & ready to deliver a premium motion experience over many years.

Starting at €4990 excl. taxes & shipping

On-site "Turn key" installation option : for a flat fee of 990 euros, we can deliver & install your MP5 simulator anywhere in Metropolitan France.

EU & international users : please consult us

GRAVIDECK MP5

Testimonies

"The GT 35 provides a very high level of feedback and detail. I did not feel motion sick at all" - Valdemar Eriksen

"Of all the simulators I tried at the Sim Racing Expo, this one was the best by far. I give it a 10 out of 10" - Naga Racing

"What you have designed here is a masterpiece" - Haqan Simulation

Customization options

The Gravideck Horizon features a modular and evolutive architecture, allowing the simulator to grow with your needs.

For example, you can install overhead panels in your cockpit, or even overhead throttle levers, as found in aircraft such as the DHC-6 Twin Otter.

A two-seater cabin configuration is also possible—fly with a co-pilot or instructor. Please note that this configuration requires the installation of more powerful motors.

The metal structure can be powder-coated in the color of your choice, and the cabin layout can be customized to your specific preferences.

For an additional fee, we also offer a complete turnkey solution: delivery of the system and full on-site installation by our team (currently available in France only).

Just let us know what you have in mind!

"Absolutely mental!"

GamerMuscle / ADAC 2024

Customization options

Imagine touching down at Lukla, the Gateway to Everest, aboard a rugged DHC-6 "Twin Otter".

Thanks to the Gravideck Horizon versatile mounting options, you can position the throttles, mixture, and propeller levers overhead—just as they are in the real aircraft!

We can also advise you on cockpit layout for any specific aircraft, please just let us now.