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Copyright 2013 Eagle Tree Systems, LLC                                                           Page 5 
 

Traditional Models with Single Aileron Servo 

 

Model Control Type setting: Standard (this is the default) 

 

Guardian Receiver Inputs 

o

 

Receiver Aileron Output 

 Guardian Aileron In 

o

 

Receiver Elevator Output 

 Guardian Elevator In 

o

 

Receiver Rudder Output 

 Guardian Rudder In 

o

 

Guardian Aux-In is not connected  

 

Guardian Servo Outputs 

o

 

Guardian Aileron Out 

 Aileron Servo (if no Aileron 

present, connect Rudder Servo to Aileron Out

o

 

Guardian Elevator Out 

 Elevator Servo 

o

 

Guardian Rudder Out 

 Rudder Servo 

o

 

Guardian Aux Out is not connected  

Traditional Models with Dual Aileron/ Flaperon servos (with 
Transmitter mixing) 

 

Model Control Type setting: Standard (this is the default) 

 

Guardian Receiver Inputs 

o

 

Receiver Aileron Output 

 Guardian Aileron In 

o

 

Receiver Elevator Output 

 Guardian Elevator In 

o

 

Receiver Rudder Output 

 Guardian Rudder In 

o

 

Receiver Second Aileron or Flaperon Output 

 Guardian 

Aux In  

 

Guardian Servo Outputs 

o

 

Guardian Aileron Out 

 Aileron Servo 

o

 

Guardian Elevator Out 

 Elevator Servo 

o

 

Guardian Rudder Out 

 Rudder Servo 

o

 

Guardian Aux Out 

 Second Aileron or Flaperon Servo  

 

V-Tail with Ailerons 

 

Model Control Type setting:  V-Tail 

 

Guardian Receiver Inputs 

o

 

Receiver Aileron Output 

 Guardian Aileron In 

o

 

Receiver Elevator Output 

 Guardian Elevator In 

o

 

Receiver Rudder Output 

 Guardian Rudder In 

o

 

Receiver Second Aileron Output 

 Guardian Aux In 

(optional) 

 

Output 

o

 

Guardian Aileron Out 

 Aileron Servo 

o

 

Guardian Elevator Out 

 V-Tail Servo 1 

o

 

Guardian Rudder Out 

 V-Tail Servo 2 

o

 

Guardian Aux Out 

 Second Aileron Servo (optional) 

 

Elevon / V-Tail with no Ailerons  

 

Model Control Type setting:  Elevon 

 

Guardian Receiver Inputs 

o

 

Receiver Aileron Output 

 Guardian Aileron In 

o

 

Receiver Elevator Output 

 Guardian Elevator In 

o

 

Receiver Rudder Output 

 Guardian Rudder In 

o

 

Guardian Aux-In is not connected 

 

Output 

o

 

Guardian Aileron Out 

 Elevon Servo 1 

o

 

Guardian Elevator Out 

 Elevon Servo 2 

o

 

Guardian Rudder Out 

 Rudder Servo  

o

 

Guardian Aux Out is not connected 
 

Figure 4: Receiver and Servo Connections for Typical Wing Types 

 

Figure 5 – Good and Bad Ways to Mount the Guardian 

Wing Type Configuration 

The Guardian is configurable for most common wing types.  By default, it is configured for traditional wing control.  Please refer to Figure 4, which shows the receiver and 
servo connections for typical wing types. 

The Guardian requires unmixed control inputs from your receiver, even if you have a V-Tail or Elevon model.  If you have a V-Tail or Elevon model, the 

Guardian does the mixing internally, so you will need to change your transmitter configuration to standard wing type, rather than having your transmitter do the mixing.   

 

For airframe types other than standard and dual Aileron/Flaperon, you will need to be change the “Model Control Type” setting, using either the radio stick 

configuration or the PC software.  See the Menu Operation section below for more information on changing this setting. 

 
Dual Ailerons/Flaperons 

An exception to the unmixed input requirement is made for Dual Aileron and Flaperon models.  By default, the Guardian will accept premixed Dual Aileron or Flaperon 
inputs to its Aileron and Aux inputs.  But, if your controller does not have the capability of performing Dual Aileron or Flaperon mixing, then the Guardian can be 
configured to do this for you.  See the List of Features and Options: Onboard Dual Aileron Mixing Enabled menu option for more information

Mounting the Guardian in your Model 

Please refer to Figure 5, which indicates correct and wrong Guardian mounting.     

 

Make sure you are mounting the 
Guardian in one of the correct ways 

shown below!  The Guardian will not work 
correctly otherwise!
 

Mount the Guardian securely with two sided 
servo tape, Velcro, or similar, so that it is in line 
with your direction of flight.  It should be 
mounted near the model’s center of gravity and 
level to the horizon when your plane is flying 
straight and level, but the Guardian will 
compensate for small mounting errors. 

Choose a mounting location which will allow the 
Guardian to be easily connected to your receiver 
and servos.   

 

If the Guardian comes loose from its 
mounting location during flight, it will 

not be able to correctly stabilize your model!  
After mounting, be sure to pull up on the 
Guardian with a force greater than you expect 
to encounter in flight, to confirm mounting 
integrity. 

 

Summary of Contents for Guardian 2D/3D Stabilizer

Page 1: ...ething is not clear just ask We d much prefer to take the time to answer your questions rather than having you waste your valuable time struggling with an issue To get help visit the Eagle Tree Guardian support thread at http www rcgroups com forums showthread php t 1596644 Chances are someone has posted a solution to your problem already If not posting your problem there will get a very quick res...

Page 2: ... control stick is moved to turn this heading is reset and subsequently relocked as soon as the stick is centered again Automatic Turn Coordination When enabled Automatic Turn Coordination will cause the Guardian to employ the step on the ball method of actuating your Rudder for you As you enter a banked turn the Guardian will assert a coordinating response on the Rudder automatically This deflecti...

Page 3: ...all stabilization gain if you are using the gain knob o Observe how your servos react as you pitch roll and yaw your plane o Adjust the Guardian Pitch Roll and Yaw axis dials with a screwdriver so the servo for each axis deflects in the correct direction to bring your model back to level A centered dial asserts zero stabilization on that axis Turning it clockwise or counterclockwise increases the ...

Page 4: ...ts Receiver Connection Requirements The number of connections between the Guardian and your receiver depends on type and capabilities of your model the level of Guardian in flight control you require and the number of spare receiver channels you have For very basic models the Guardian is capable of operating with only the Elevator input and Aileron input connected BEC Receiver Battery Power Requir...

Page 5: ...Good and Bad Ways to Mount the Guardian Wing Type Configuration The Guardian is configurable for most common wing types By default it is configured for traditional wing control Please refer to Figure 4 which shows the receiver and servo connections for typical wing types The Guardian requires unmixed control inputs from your receiver even if you have a V Tail or Elevon model If you have a V Tail o...

Page 6: ... Guardian 2D 3D Stabilizer uses accelerometers and gyroscopes to measure the orientation of your model relative to the local direction of Earth s gravity In addition it interprets Pitch and Roll attitudes commanded by your Elevator and Aileron stick movements respectively With this information it is able to determine the error between your requested flight attitude and your plane s true orientatio...

Page 7: ... more information on this Setting Master Gain control to the minimum will lower the overall gain to zero while positions in between will yield proportional gain Lowering the individual gain dials on the Guardian will lower the gain for that axis only and allow fine tuning This might be desirable if for instance oscillation is encountered on one axis but not the others One possible strategy for set...

Page 8: ...e information After this startup blink sequence the LED will display Steady State status as described below LED Indication during Steady State Solid On 3D Mode One repeated blink 2D Mode Solid Off Stabilization Disabled Additional LED Messages 2 repeated blinks Radio Stick Menu is active 3 repeated blinks USB is connected 4 repeated blinks Error condition Error type is indicated by a pause and a n...

Page 9: ...when the servos of your model stop their normal stabilization deflections and instead perform a short twitch followed by no further movement Also the status LED will blink in a two blink sequence when the menu is active Menu Navigation Once in the menu you will start at menu item 1 in the List of Features and Options section below The menu items can be navigated by deflecting the Aileron and Eleva...

Page 10: ...heir airplane can disable this feature for a rate gyro experience 3D Mode Only Enabling Direct Rate 3D Stabilization is strongly recommended if this mode is set to Off Radio Stick Menu Options 1 Off 2 On 8 Derivative Gain Tunes the dampening derivative gain of the airplane Increasing this value will strengthen the rate gyro behavior of the Guardian while leaving the 2D leveling and 3D Heading Hold...

Page 11: ...ounting offsets This step will fail if either the Pitch or Roll is greater than 25 degrees 10 Save Configuration Records your current settings as set on Guardian to a txt file to load later Useful for saving profiles for individual airplanes 11 Load Configuration Recovers the settings from a previously saved configuration file and writes them to the connected Guardian 12 Factory Reset Restores the...

Page 12: ...ng around inappropriately you may need to move the Guardian away from sources of R as a powerful BEC or motor Or you may need to mount the Guardian differently to reduce excess Eagle Tree Systems LLC Page 12 Controls the 2D Heading Hold gain When set above zero this option determines how hard the Guardian will assert a roll to k 2D Heading Hold Gain Controls the Automatic Turn Coordination gain In...

Page 13: ...rkmanship for a period of one 1 year from the date of original purchase This warranty is nontransferable If your unit requires warranty service during this period we will replace or repair it at our option Shipping cost to us is your responsibility To obtain warranty service email support eagletreesystems com for further instructions This limited warranty does not cover The Software See the Softwa...

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