EUREKA DYNAMICS

FFT-GYRO

Advanced Drone Testing Systems

The most precise, modular and scalable test platform for UAV R&D, manufacturing validation,and mission-critical drone operations.

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FFT-GYRO G3.5 Drone Test Stand FFT-GYRO G4.0 Drone Test Stand
FFT-GYRO G3.5

What Is FFT-GYRO

A Simple but Powerful Tool

FFT-GYRO is a first-flight tester gyroscope that supports the drone at the center while allowing meaningful roll, pitch, and yaw motion inside a secure structure.

Its adjustable geometry helps align the drone center of rotation with the gyroscope, supports different multirotor sizes and types, and can be installed in open or closed spaces.

ROLL PITCH YAW

The FFT GYRO is a specialized gyroscope that can move freely in the roll, pitch, and yaw axis without any limitation, while supporting a drone in the center. Its safe structure allows the system to be installed in an open or closed space and interact with people in real time. With its adjustable height for different multi-rotors, the center of rotation of the drone can be aligned with the center of rotation of the gyroscope allowing the drone to rotate about it’s true center of rotation. It can hold different types and sizes of multi-rotors, from small racing drones to big industrial drones.

The FFT-GYRO is essentially useful for everyone that works with drones or UAVs. From beginner users that want to learn how to fly, to drone development companies that want to keep leading the market. It comes out as a solution for a wide variety of problems that are very common in this field. The FFT GYRO is not only a tool for research and development. It is the tool that makes easy to work with drones and helps to stay ahead of the game.

Live motion view FFT-GYRO in operation
The system is a special type of gyroscope that can move freely in the roll, pitch, and yaw axis without any limitation.
3-Axis Envelope

Roll, pitch, and yaw are organized so the aircraft can be observed under thrust without leaving the frame.

ROLL

Observe lateral stability corrections, oscillations, and control authority on a secured platform.

PITCH

Study thrust-vector response, balance changes, and the effect of center-of-mass placement.

YAW

Validate heading behavior, command response, and the way the aircraft rotates around its vertical axis.

SAFE VALIDATION

Built for safer testing

With a rig like this you could “fly” your drone anywhere without the risk of a collision.

PERFECT FOR

DRONE MANUFACTURERS

Validate, calibrate and certify your drone designs before shipping.

ACADEMICS

Research and teach with the most advanced drone testing platform available.

DEVELOPERS

Perform tests safely with your new accesories, devices or software.

INTEGRATORS

Test third-party components and validate integration before deployment.

PILOTS

Practice maneuvers and refine skills safely without risk of crash damage.

DEFENSE

Simulate Mission-Critical Environments for experimental UAVs.

DRONE MANUFACTURERS

Validate, calibrate and certify your drone designs before shipping.

ACADEMICS

Research and teach with the most advanced drone testing platform available.

DEVELOPERS

Perform tests safely with your new accesories, devices or software.

INTEGRATORS

Test third-party components and validate integration before deployment.

PILOTS

Practice maneuvers and refine skills safely without risk of crash damage.

DEFENSE

Simulate Mission-Critical Environments for experimental UAVs.

APPLICATIONS

Teaching Students application

Teaching Students

Bring real drones into the student's classroom and teach them the principles, uses and the operation of UAVs, in a completely safe environment.

Pilot Training application

Pilot Training

Train new pilots in any indoor facility and give the opportunity to more experienced pilots to practice maneuvers without the need of going to an outdoor location.

Drone Integrators Tool application

Drone Integrators Tool

Bring this tool to the field to balance the weight distribution of the aircraft payload, tune the PID parameters and calibrate the on-board sensors before flight to avoid accidents.

PID and Sensor Calibration application

PID & Sensor Calibration

Perform the On-board calibrations (IMU, gyroscopes and magnetometer) easily. Tune the PID parameters by trial and error without the stress of making a mistake.

Showcase Products application

Showcase Products

Add a dynamic touch to your company and create an awesome experience for your customers by letting them "fly" your products, without putting them at risk.

Research and Development application

Research & Development

Empower your R&D department to take that leap from investigation to experimentation and implementation in real-drones, performing projects easier and faster.

and more...

Diferent Gimbal Configurations

Different axis order, different mechanical behavior.

the system G3.5 keeps Roll Pitch Yaw and the system G4.0 moves Yaw first, which changes inertia, response feel, and the mounting approach around the drone.

G3.5 Series RPY

Roll-first architecture with direct AHRS-aligned measurement logic and a hollow center for hardware clearance.

G3.5 roll pitch yaw diagram
Why it matters

It favors conventional measurement logic and gives more open volume around the aircraft center.

Choose when

You want the published Roll Pitch Yaw stack and hardware clearance is a priority.

G4.0 Series YRP

Yaw-first architecture with lower yaw-driven inertia and a response profile that feels closer to free-flight behavior during maneuver work.

G4.0 yaw roll pitch diagram
Why it matters

It shifts the inertia profile and makes the stand react more naturally during demanding dynamic tests.

Choose when

You want the published Yaw Roll Pitch stack and better maneuver-response fidelity.

View architecture comparison

Architecture Comparison

The full published table remains available here for deeper technical review.

Feature / Version G3.5 G4.0
Angle measurements Follows the AHRS convention and takes direct measurements. Does not follow AHRS directly and uses processed measurements.
Free channels for custom connection Yes No
Gimbal inertia Fixed and stable inertia. Reduced, but variable inertia.
Drone maneuverability Yaw gimbal adds considerable inertia and affects maneuverability. Better responsiveness for maneuver testing with near-real flight behavior.
Drone mount type Hollow center with room for batteries, landing gear, payload, and other hardware. Base plate mount that is easily interchangeable for customizations.

Sizes / How To Choose

Choose the frame by the drone, not by guesswork.

Start with the drone envelope. Rotor-to-rotor distance sets the shortlist, and outer diameter confirms the clearance the frame must preserve.

Rotor-to-rotor sizing diagram
Rotor-to-rotor distance is the primary measurement. Outer diameter validates total frame clearance once landing gear, batteries, payloads, and other hardware are installed.
1

Measure rotor-to-rotor distance.

Use the main prop-center span to identify the correct FFT-GYRO family first.

2

Review total outer diameter.

Confirm the full aircraft envelope, including landing gear, payloads, and mounted hardware.

3

Choose the smallest safe frame.

Avoid oversizing unless the total installed envelope truly requires a larger structure.

View size matrix Hide size matrix

Size Reference

Use rotor-to-rotor distance and outer frame diameter together when you need the exact published range check.

Spec / Size 250 450 600 800 1000 1200 1500 2000
Rotor-to-rotor distance (mm) 100 - 250 250 - 450 450 - 600 600 - 800 800 - 1000 1000 - 1200 1200 - 1500 1500 - 2000
Outer diameter (mm) Up to 450 Up to 750 Up to 950 Up to 1200 Up to 1450 Up to 1750 Up to 2150 Up to 2750

Software Ecosystem

Mechanical validation on one side, measurement depth on the other.

FFT-GYRO is more than a structure. The platform can stay mechanical and containment-focused in Standard form, or move deeper into measurement and software-driven workflows in Pro form.

FFT-GYRO Test Tool NX main interface
The FFT GYRO Test Tool is an open-source software interface developed by Eureka Dynamics to interact seamlessly with the FFT GYRO system.
FFT-GYRO software shown on a laptop
Software closes the loop between the physical stand, encoder data, and control analysis.

Add-Ons / Expandability

Move the platform from passive observation to active axis control.

Motor kits turn FFT-GYRO into an active test system: size determines compatibility, and torque family tells you how much commanded force each axis can deliver.

Motor kits replace the encoder positions with smart servo motors on roll, pitch, and yaw.
Compatibility Hide compatibility

Motor Kit Compatibility By Size

Compatibility is published by platform size and shows where active torque modules can be added.

Spec / Size 250 450 600 800 1000 1200 1500 2000
Motor kit compatibility 1.4 and up 3.0 and up 4.1 and up 7.3 and up No No No No
Torque Hide torque

Motor Kit Torque Reference

Rated torque shows the continuous actuation level. Stall torque shows the peak holding limit of each kit family.

Spec / Motor Kit Motor Kit 1.4 Motor Kit 3.0 Motor Kit 4.1 Motor Kit 7.3 Motor Kit 10.6
Rated torque (Nm) 0.28 0.6 0.82 1.46 2.12
Stall torque (Nm) 1.4 3.0 4.1 7.3 10.6

Need extra technical details? Download full specs.

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DOCUMENT LIBRARY

Spec-Sheets Library

G3.5 SERIES

G4.0 SERIES