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Operating instructions

Connect the gyro as shown above. Switch on the transmitter and subsequently 
the power supply of the receiver. After switching-on the 

Wing Gyro

 executes  

an automatic temperature self calibration. During this period it is very important 

not

 to move the 

Wing Gyro

. At the end of this period (approx. 3 sec.) the LED 

lights up permanently and the connected servos execute a short twitch.

If you want to take advantage of the remote controlled and infinitely variable  
sensitivity adjustment, plug the connector with the marking "sensitivity" into the 
receiver. The sensitivity (gain) of the gyro can now be adjusted within the range 
of 0 and 100% of the sensitivity adjusted with the poti. (The poti gives the 
maximum sensitivity). At the lower end position the sensitivity is 0%, that is the 
gyro is switched off, at the upper end position the gyro achieves its full 
sensitivity of 100% (see graph). Dependent of the type of radio it might be 
necessary to adjust the servo travel at the transmitter end to its maximum (for 
instance JR at least 100/100% symmetrically), otherways you might not be 
able to achieve the full range of sensitivity adjustment between 0 and 100%. 
For technicians: servo signal lenghts between 1.1ms and 1.9ms are necessary 
to give the full working range between 0% and 100% sensitivity.

If you don´t have a free channel left for sensitivity adjustments just leave the 
connector open. In that case the gyro will always work at the basic sensitivity 
which has been adjusted by the potentiometer. After switching-on the 

Wing 

Gyro

 requests availability of a signal at the sensitivity channel. If there is no 

signal the gyro works untill next switching-on with the sensitivity which has 
been adjusted by  potentiometer. With the reverse jumper the direction of gyro 
operation can be reversed for one servo, the processor checks this situation 
with each switching-on.  However, the direction of servo travel does not 
change at this occasion. Make sure to switch the power "off" when adding or 
removing the jumper. If the gyro effect goes to the wrong direction, the gyro 
operation can  be reversed by turning the gyro case by 180 degrees.

After installation first check the direction of gyro operation, otherways it may 
happen that instead of compensation of external influences in flight their 
augmentation may be increased entailing a crash. If you simulate a right turn 
with the model in flight direction the gyro must counteract with an aileron 
deflection corresponding to a left turn. Related to flight direction the left aileron 
must perform a short deflection upwards and the right one downwards.

1.1ms

100%
sensitivity

1.5ms

1.9ms   Impuls length of sensitivity channel

Gyro effect of sensitivity

The Ikarus 

Wing Gyro

 is a new gyro system assigned to the use on wing R/C 

planes. The 

Wing Gyro 

is the successor of the famous and well tried Safe 

Control Duo, but with further improvements and additional new properties.

In wing models the 

Wing Gyro

 can alternatively control ailerons, rudder or 

elevator. A committed pilot will be able to use this gyro as before to control 2 
servos via separate channels and he will furthermore be able to utilize the 
ailerons as landing flaps or spoilers. Besides this the 

Wing Gyro

 provides a 

built in automatic stick authority system. In neutral stick position the gyro 
holding power is at its maximum and decreases gradually with stick 
deflection. In addition the sensitivity of the gyro can be remote controlled 
between 0 and 100% from the transmitter via an additional channel. The 

Wing Gyro

 recognizes and computes deliberate control movements, that is 

the gyro effect is maintained even if for instance ailerons are used as 
spoilers. The 

Wing Gyro

 comprises no moving parts with liability to defects, it 

is a pure electronical and dependable device without any wear.

Specifications of the Wing Gyro

-

high holding power

-

internal stick authority system (automatic stick priority)

-

remote adjustable gyro sensitivity 0...100%

-

basic sensitivity adjustment by potentiometer

-

jumper for servo reversal

-

after switching-on automatic self calibration to 
temperature 

-

operating voltage range + 4.4... 12 V

-

weight approx. 0.9 oz.

-

outside dimensions approx. 1.5" x 1.6" x 0.7”

-

control LED

Application 

Aileron control of wing models

Stick Authority System

The 

Wing Gyro

 comprises an internal automatic stick authority system (also 

"stick priority"), that is to say the gyroscopic effect is highest at the stick 
neutral position and decreases gradually when the stick deflection 
approaches maximum.

Connectors

The 

Wing Gyro

 connectors see below:

Wiring and Installation

Choose a position away from vibration and heat. Stick the gyro with a double 
sided foam tape to a smooth surface. The cables of motor, speed controler 
and battery should be routed as far away as possible of the 

Wing Gyro

. The 

gyro axis of rotation must be positioned parallel to the longitudinal axis of the 
wing model, the direction of rotation is irrelevant (see figure). Plug the gyro 
connectors with the markings "1. rudder channel" and "2. rudder channel"  
into the receiver. If you intend to utilize the remote sensitivity adjustment, 
plug also the third connector into the receiver. 

Into 

PCM-

receivers the gyro must be plugged according to the 

recommondation of the receiver’s manufacturer. For example, plug the 
gyro’s connector “1. rudder channel“ into receiver channel 2, plug the 
connector ”2. rudder channel”  into receiver channel 5, and plug gyro’s 
sensitivity connector into receiver channel 7. If the gyro’s LED starts flashing 
after connecting to a PCM receiver the channel wiring is wrong. As long as 
the LED is flashing, only poor gyro effect is obtained.

If you don’t want to utilize the gyro’s second channel just leave the connector 
“2. rudder channel” unplugged; now  the gyro works in single channel mode.

Corrective
axis

Wing
   Gyro

Servo1

Servo2

Servo reversal

Maximum sensitivity

Control LED

To receiver
1. rudder channel

To receiver
2. rudder channel

To receiver
sensitivity channel

Corrective 
axis

Side view in 
direction of 
corrective axis

Receiver

Servo1

Servo2

Wing Gyro

Corrective axis

Corrective axis

Servo Reversal

If during tests of gyro operation both flaps move 
into the same direction, plug in the reversing 
jumper and check the gyro action again. If 
necessary turn the gyro effect as described 
above .The adjustment  of servo travel direction 
at the transmitter should not be changed.

Warranty

This quality product has been thoroughly checked before delivery. Nevertheless, in case of  complaints your warranty claims will be handled  in 
accordance with our current General Sales Conditions. If equipment returned for warranty repair shows full functionality during the entry 
inspection, handling charge will be € 21,-. According to our experience the product works well with all current R/C systems. On the other hand we 
cannot grant functionality with a specific R/C system due to the fact that control pulse conditions of  receivers are not liable to standardization. We 
must as well reject any responsibility for consequential damage arisen from the use of our products since we are not able to supervise  their 
appropriate application.

Safety directions

The CE-label is no allowance for negligent handling of the equipment. Avoid dangerous areas of motors, propellers, gears and rotor blades. 
Always consider  electric systems as potentially dangerous. Always remove the battery if you intend to work on the system. Avoid direct and 
condensed humidity. The product is not protected against reversal of polarity. Reversing polarity or cables can entail irreparable damages. Plugs 
and sockets must always fit perfectly. Improvisations can give rise to damages. Care about the power consumption of the power supply, especially 
with regard to the gyro. A higher power consumption than assigned for can damage the power supply and other equipment connected to it. Never 
disconnect an electrical appliance from the battery as long as it is operating.

Operating directions

The transmitter must always be switched on first and subsequently the receiver. Make sre that the throttle stick is in the low throttle position. In any 
case verify that you are exclusive user of the selected frequency and nobody else is using it. Pay attention to the CE-labels of other components. 
Provide motors with at least 2 noise suppressing ceramic capacitors 10 - 100 nF/63 - 100 V and optional with further noise suppressing means 
(filters, chokes). Route the  antenna at least 1" away of motor, battery, speed controller and their cables. Install the receiver as far away as 
possible of motor, battery and speed controller. Keep cables as short as possible. Motor and battery cables should be twisted. For the purpose of 
storing your model remove the batteries and store it at a dry place with normal air humidity. Should the system act erratically, disconnect the flight 
battery from the system and reconnect it again after a waiting period of 5 - 10 s. 

Specifications are subject to change without prior notice.

Wing Gyro 

# 720612

Norbert Grüntjens

www.ikarus.net

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