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Feb 17, 2012, 01:13 PM
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Announcing the Guardian 2D/3D Stabilizer

Master your Skies!

Based on Eagle Tree's proven inertial stabilization technology, the Guardian 2D/3D Stabilizer helps both beginner and expert pilots fly with confidence.

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!

In addition to stabilizing fixed wing aircraft, firmware updates for stabilization camera mounts is also planned!

To stabilize your model, just mount the Guardian in a level orientation, do some minimal setup, and away you go. No additional equipment is required for stabilization.

At only $74.99 (USD, MSRP) the Guardian provides some great protection for your investment, while making it more fun to fly and easier to perform advanced maneuvers!

Guardian 2D/3D Stabilizer (2 min 42 sec)

For more info on our website, visit

IMPORTANT: before flying with the Guardian, carefully read and follow the instruction manual here!

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. You may think that your model is on rails! 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 model’s 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. 

[B]Q: I Fly FPV. Is the Guardian for me?[/ B]

Yes! We offer two great stabilization solutions for FPV flyers. If you plan on using an OSD with FPV, we recommend the OSD Pro, with the Guardian Expander. This gives you integrated FPV stabilization with AHI (artificial horizon) display, easily adjusted with on-screen video menus.

If you don't need an OSD with your FPV plane, or are using an OSD other than the OSD Pro, the Guardian 2D/3D Stabilizer should be perfect for you.

Also, we plan to have firmware updates for the Guardian 2D/3D Stabilizer to support camera stabilization.

Q: Will the Guardian work with my model?

The Guardian weighs only about 11 grams with cable, and has a tiny footprint, so 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.

Q: How do I install the Guardian?

Guardian installation is quite easy. Simply mount the Guardian securely in your model's fuselage, and connect it to your reciever and servos. The labeled receiver connectors on the included cable make this step very simple. 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 desired.

Guardian 2D/3D Stabilizer Tutorial (7 min 16 sec)

If you prefer PC setup, just connect the Guardian to your Window PC or laptop via the built-in USB connector*, and run our software to perform advanced configuration with ease!

Our PC software also allows you to save and restore model profiles, making it easy to move the Guardian from plane to plane without reconfiguration!

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 thousands of times a minute to keep track of your model's orientation.

Q: You are missing the feature I want! How do I tell you what you need to add?

Eagle Tree is very interested in how we can improve our products to meet your needs. Just post your request or other feedback below!
Last edited by billpa; Aug 05, 2013 at 10:25 AM.
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Feb 17, 2012, 01:58 PM
Earthbound Skyhound
StarHopper44's Avatar
By being first to respond, I get a free sample to test & give glowing reviews on, right Bill ol' buddy ol' pal ol' friend???
Feb 17, 2012, 03:40 PM
Flying like an Angel.
BlueAngel2000's Avatar
Really nice step forward.

We can have the cool stabilization now also for our smaller FPV setups.
Feb 17, 2012, 03:40 PM
Registered User
So can we preorder now
Feb 17, 2012, 03:50 PM
Static Model Collector LOL
If we can assign different gain settings for various flight modes, this would be one hell of a bargain.

Would be nice if Eagleetree did some testing in high speed models, ie over 150 mph

Looking forward to updates

Feb 17, 2012, 04:11 PM
Never Stop Learning
Jaguar22's Avatar
At $74.95 it is a bargain, but high speed flying is still in your thumbs not a box this inexpensive.

I am on order already.
Feb 17, 2012, 04:18 PM
Blu-Core is my friend
Gundy's Avatar
ordered 2 plus a cable

Feb 17, 2012, 04:20 PM
Registered User
aerografixs's Avatar
Is the guardian safe to use in the larger models with the higher vibrating engines?

Feb 17, 2012, 04:23 PM
First to go over 106K feet
Crist Rigotti's Avatar
Feb 17, 2012, 04:25 PM
Watcher of the Void
Air2Mud's Avatar
So, how do you set it up with a model using independent channels for each of elevator and ailerons? It looks like - with the AUX output - you could do one of those but not both?
Feb 17, 2012, 04:28 PM
Super Member
davensocal's Avatar
I assume the servo power leads are simply pass through, so no concerns with larger digital servos, right?

And ditto to the previous question about multiple servos/surface..
Feb 17, 2012, 05:25 PM
Never Stop Learning
Jaguar22's Avatar
Originally Posted by davensocal
I assume the servo power leads are simply pass through, so no concerns with larger digital servos, right?

And ditto to the previous question about multiple servos/surface..
That is correct, this is similar in function as many of the 3 axis gyros used on RC Helis for many years. So if you have flown helis for a while flybarless this is nothing really new.
I have setup 3 axis gyros on RC planes, boats, cars and helis. The results can vary depending on what you ware trying to accomplish and expect in results.
Feb 17, 2012, 06:21 PM
Registered User
Hi Bill,

When will the manual and full specs be available?

Feb 17, 2012, 07:28 PM
3DHS 'native'
going4speed's Avatar
Ordered for the heck of it really.

When will this be shipped?
Feb 17, 2012, 07:35 PM
But often down to earth
Floater73's Avatar

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