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Guardian 2D/3D Inertial Stabilizer (Standalone Model)

Guardian 2D/3D Inertial Stabilizer (Standalone Model)

Based on Eagle Tree's proven inertial stabilization technology, the Guardian 2D/3D Stabilizer is a must-have product for your R/C model airplane. Whether you fly gas or electric models, wings, foamies, sailplanes, or just about any other fixed wing model, the Guardian is for you!

Is it moderately gusty or windy? The Guardian helps compensate for non-ideal flying conditions. The Guardian helps your plane fly like it's a perfectly calm day!

To stabilize your model, just mount the Guardian in a level orientation (it can even be mounted upside down), connect it to your servos and receiver with the included cable, tune it to your plane with a small screwdriver, and set optional features with your radio sticks. No computer or additional equipment is required for stabilization.

While in flight, a spare switch on your radio lets you switch between 2D (wing leveling) mode, 3D aerobatic mode, and no stabilization. Imagine performing a difficult 3D maneuver with ease, then just flipping a switch to instantly return to level flight! The Guardian makes it more fun to fly and easier to perform advanced maneuvers!

Q: Why do I need the Guardian? The Guardian helps both beginner and expert pilots fly with confidence, and provides two key modes of operation: In 2D flight mode, the Guardian provides much smoother flight and wing leveling stabilization for your model, which makes it a lot easier to adjust and fly your plane. The Guardian "remembers" level flight for your model and returns it to level flight when needed, as well as providing precise "fly by wire" control.

The Guardian is also great for FPV flying. If you are a beginner pilot, the Guardian can help take the fear factor out of the first few flights. If you get into trouble, just let the sticks go and the Guardian will attempt to quickly bring your model back to level flight. If you are flying a plane that is not very stable due to imbalance, poor aerodynamics or high motor torque, the Guardian can make things much easier.

Is it moderately gusty or windy? The Guardian helps compensate for non-ideal flying conditions. The Guardian helps your plane fly like it's a perfectly calm day. In 3D flight mode, the Guardian becomes your aerobatic assistant. Whether you want to become a 3D expert, or already are, the Guardian can turn your squirrelly stunt plane into a kitten, without sacrificing aerobatic capability.

The Guardian updates your control surfaces much faster than most humans can, to provide real time corrections to the flight. So, you can concentrate on your maneuver, rather than fighting the model to maintain control. The Guardian makes your plane "snappier" for precision maneuvers.

The Guardian has two submodes for 3D flying: In 3D Heading Lock submode, simply center your sticks to have the Guardian lock onto your present attitude (pitch, roll, and heading), which can make it easier to perform stunts like prop hanging, inverted flight, knife edges, low speed harriers, etc. In 3D Gyro submode, the Guardian uses its built-in 3 axis gyro to increase your modelís stability, while leaving you in full control. In this mode the Guardian greatly reduces the effects of gusts, turbulence, motor torque and other factors, and can expand the maneuverability of your model in a variety of conditions.

Q: I Fly FPV. Is the Guardian for me? Yes! We offer two different stabilization products for FPV flyers. If you plan on using an OSD with FPV, we recommend the OSD Pro with the Guardian Expander module. This gives you integrated FPV flight stabilization and a real-time AHI (artificial horizon) display. If you don't need an OSD with your FPV plane, or are using a competitor's OSD system, then the Guardian 2D/3D Stabilizer should be perfect for you.

Q: Will the Guardian work with my model? The Guardian weighs only 11 grams and has a very tiny footprint. It is perfect for most models, from small foamies on up. But don't let its small size fool you - it works great in almost any fixed-wing plane! And, there are no external sensors to add drag or weight to your model. The Guardian controls a total of 4 servos, and is flexible enough to support elevons, dual ailerons, and other configurations. Please note that it is NOT compatible with model helicopters.

Q: How do I install the Guardian? Guardian installation is quite easy. Simply mount the Guardian securely in your model's fuselage then connect it to your reciever and servos. There are no additional sensors or other hardware to install! At a minimum, your ailerons (or rudder) and elevator need to be left connected, but the Guardian includes additional control and stabilization channels to support almost any model!  Stabilization gain can be controlled via an extra knob on your radio, which lets you easily adjust it in flight.

Q: How do I configure the Guardian? After installation, the Guardian is tuned to your plane using only a small screwdriver, and settings are chosen via your radio sticks. No computer or other device is required for configuration. Gain can also be adjusted in the air with a spare knob or switch on your reciever. If you prefer PC setup, just connect the Guardian to your Windows PC or laptop via the built-in *USB connector and run the software (available as a free download) to adjust it to your ideal configuration. The PC software also allows you to save and restore model profiles, making it easy to move the Guardian from plane to plane.

Q: How does the Guardian work? The Guardian's built-in state of the art sensors constantly measure the gravitational forces and rotation of your model in 3 axes (6DOF IMU). Using the sensor data, the Guardian's processor performs complex calculations to keep track of your model's orientation.

Q: What sets the Guardian apart from other Stabilization systems out there? Previously, the only stabilization systems available required installing external sensors, or were relatively large, heavy, and expensive. The Guardian changes all that; It is priced much lower than other inertial based stabilization systems, is much lighter/smaller than anything else on the market, at any price.


*Note: Using the PC software will require a common Micro-USB cable. Most likely you already have one of these, but it not then they are available from your local electronic/computer store.


Instruction Manual: Click Me!
PC Software: Click Me!


Ship Wt. 0.25 lbs
List price: $74.99
Our price: $59.99 Item In Stock!
Cables are included!
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