Does anyone know if any stateside shops carry the ACT Fuzzy Pro SSM/V2 gyro. It has two cannels to allow nosewheel steering and rudder damping.

Tom

Check your PM.

I bought one from SpiderJets few years ago, I had it installed in my SJ F-16 but pulled it out after about 3 flights because I found it unnecessary for that airplane. I do not know if it is sold here in USA but the instruction in written in German. Nicolas Gauderies (Sp) did the programming for me few years ago at Superman.


Regards

Ben

You can also try the Futaba GY351,

We are using them on 2 servos aileron systems and also on the nose leg and rudder.

Connect to the two input leads into a 'Y' lead then into the rudder channel.
Then connect the nose leg and rudder servo's into the two individual output sockets on the gyro.

Works a treat and the gain is adjustable from the Tx.

modtron
Oxford UK

Hi

I have a PDF copy of the English instructions for the Fuzzy pro. If you would like me to mail them to you please PM me. Klaus does understand English and is helpful. We have used this gyro and its predecessor for several years now.

John

If it is not too big, can you post it here?

I cannot seem to be able to post a PDF file the file size is only 332 kb.

John

I've the Fuzzy pro manual as a 1.14Mb word doc if you drop me a pm.

Pasted here, but its lost the diagrams.

Eric

Fuzzy pro
Instruction manual

Description
The Fuzzy pro is used for the stabilisation of model aircrafts. Its intelligent microprocessor controlled electronics, coupled to a Piezo sensor, monitors the rotation of the model around the gyro/s axis. The Fuzzy pro Gyro is specially designed to be used in an airplane with features airplane flyers require. The Fuzzy pro monitors all movements around it’s axis much faster than the pilot can, and responds with different modes.

The Fuzzy pro is perfect for aerobatics, thermal flying, glider towing (in both the towing craft and the glider), jets and scale models. Basically, the Airplane Stabilizer Piezo Gyro is perfect for any model with a stability problem, or for any pilot who wants to enhance their flying with the added stability of a gyro.

The gyro can be used in two different modes. MODE I works as a dampener, effectively acting like a brake, it does not return the model to its starting position. MODE II holds the model in the last position which was set with the stick.

The sensitivity of the Fuzzy pro can be adjusted from the transmitter with any free proportional channel during use, so the gyro´s response can be adapted to the characteristics of the model whilst it is flying. In addition, with this channel, it can be switched between MODE I and MODE II.

A special feature in this gyro is the "Dynamic" pot, which adjusted the characteristics of the gyro response, allowing you to tune the gyro to your model characteristics.

The internal LED shows the current status by flashing in different patterns.

For best results the Fuzzy pro should be used in conjunction with fas servos, we recommend Futaba servos. Servos from other producers could perhaps have problems to work with the high speed and precise signals from the gyro. This results in small vibrations and current consumption.

Features
The Fuzzy pro has two servo signal inputs and two servo outputs—each with its own reversing switch. This enables you to use your gyro for a control that is operated by two servos (such as dual servo operated elevators or ailerons). This also enables you to retain your mixing without affecting the operation of the gyro. For example, if you wish to connect your gyro to the elevator (operated by two servos), your elevator/rudder mixing will still be able to function correctly. Similarly, if you wish to connect your gyro to the ailerons (each operated by its own servo), the gyro will not affect your mix.
Your Fuzzy pro has a third input for gain control which allows you to you adjust the sensitivity or effectiveness of the gyro, and you can do it while in flight. This requires an adjustable control knob or a pot on your transmitter (or a programmable mix if you have a computer radio). You may also turn the gyro off when it is not needed.

A built-in and adjustable mixer reduces the gyro’s effect when you move the control stick from center, you have the same feel or responsiveness that you would without a gyro—a kind of reverse exponential effect. In addition, the gyro recognizes when the input is coming from the stick or from a mix. For example, if you are using your gyro to stabilize your ailerons and you have a flaperon mix, the gyro’s sensitivity will not be reduced when the ailerons are extended by your flaperon mix.
Mode I (Standard)
Works like all former gyros as a dampener, useful for all manoeuvers.

Mode II HEADING/AVCS
New gyro characteristics. Holds the position or direction of the model arround the stabilized axis until a given stick control.

Adjustments
Function of DIP-Switches
ON OFF
1 Servo 1 direction Normal Servo 1 direction reversed
2 Heading Mode Normal Mode
3 Set Servo limit Normal-use
4 Servo 2 direction Normal Servo 2 direction reversed

Every change of DIP-Switch need a certain waiting in OFF position of receiver until the change will be recognized. IMPORTANT: After switching the receiver ON, DO NOT move the model for about 3-5 seconds, until the Led flashes. During this time the gyro calibrates the piezo sensor´s centre position, and confirms that the unit is functioning correctly - indicated by the LED flashing.

DIP switch 3:SET LIMITS
With that switch in ON position during switching-ON procedure for receiver, the servo end position adjustment starts. Use full servo throw. Use the tail rotor stick and move it slowly to one end position, back to centre and to the other end position. Now the Gyro knows the stick throw and the centre position used. We recommend that this centre position is hover-position. Now switch the DIP switch 1 back to OFF position, the servo moves to left, centre and right position to indicate the stored positions. Switch OFF receiver, wait 10 seconds ore more and switch ON receiver again. The gyro knows now the positions and the tail servo will never move over these positions during flight. Please take care that with these end positions no mechanical limit from the linkage to the servo can happen.

DIP switch 1+4: Servo reverse
With these DIP switches the servo direction can be reversed. It reverses the servos direction for control movements of the servos, given from the gyro (not from transmitter controls).

DIP switch 2: MODE II HEADING/AVCS
In OFF position (MODE I) the gyro is a Standard gyro, in ON position the gyro works in two modes, depending to the position of the gain channel. Minimum gain is in the centre (1,5ms) of the gain channel. Maximum gain for either Standard-Mode (MODE I) or HEADING Mode (MODE II) is at the end positions of the gain channel. As indication, the LED flashes 2 x at NORMAL, 3 x MODE II. In HEADING mode, the gyro holds the position/direction of the stanilized axis, as long as there is no stick control from the pilot. The position is set either when switching ON receiver in HEADING mode, switching from Standard- to HEADING-Mode or after every stick control movement.
Pot 1, "Dynamic" Pot Adjustment
The best gyro results can be reached wÃ*th with the maximum possible sensiitivity. With the "Dynamic" pot, the gyro´s response in MODE I and Mode 2 can be tuned to your model´s characteristics. Every model has different servo speeds, controls aso., so the dynamic pot can be adjusted to change the response curve in relation to the rate of turn. The better the dynamic is adjusted, the higher the sensitivity can be adjusted. Please adjust the pot with a small pozi-drive screwdriver. Left position = soft dynamic, right position = hard dynamic. If the model starts to wag out, reduce dynamic pot position to soft direction and try to increase sensitivity (gain) again.

If the gain-channel of the Fuzzy pro is not connected to the receiver, the pot works as manually gain pot, the gain can be manually adjusted here.

Pot 2, Stick fade out adjustment
A built-in and adjustable mixer reduces the gyro’s effect when you move the control stick from center, you have the same feel or responsiveness that you would without a gyro—a kind of reverse exponential effect. The pot adjusts the point, were the gyro will be switched of when you move the control stick at the transmitter. The adjustment effects with a small delay.


LED Status

LED-Indication, Voltage control
X-X-X Mode Normal, gain manually adjusted
XX-XX-XX Mode I, Normal
XXX-XXX-XXX Mode II, Heding

Installing the Fuzzy pro
The Fuzzy pro should be installed with the Gyro´s rotation axis identical to the desrired axis which should be stabilized.


It is important to protect the Gyro from hard vibrations, as this can interfere with Piezo sensor. Mount the Gyro using the 2mm double sided tape. This should create a firm, but vibration free environment for the Gyro to operate in.
Piezo elements are also affected by changes in temperature, it is also important that the gyro is well ventilated to prevent large temperature, such as the unit heating up too much in the sun. However, as it is normally not possible avoid temperature variations completely, the Fuzzy pro has "built in" temperature compensation.

Connection:
The connectors on the Fuzzy pro use the Futaba polarity system. Therefore any Futaba, JR or Hitec equipment is directly compatible with the unit.


Lead colours :
System Plus (+) Minus (-) Signal
Graupner/JR red brown orange
Futaba red black white
MPX red black yellow

The gyro is connected between the receiver and the servo for the deisred control. The connector without a mark is plugged into the receiver output for the servo. The lead with the mark is connected to the Gain (AUX) channel on the receiver. The Gain channel should correspond to a free proportional channel on the transmitter, so that the gain can be easily adjusted in flight.

Practice

Adjustment of Gyro Direction
Before connecting the gyro, please make sure that the control of the model you want to stabilize is responding in the correct direction to the movement of the transmitter stick. Then connect the gyro to the receiver and servo as described above and set the gyro gain (AUX) on the transmitter to 100% (only for test purpose, we test on aileron).
Hold your model and quickly rotate it about the axis the gyro is operating. In the case of our example for the roll axis, quickly bank the model to the right and the left as if it was performing a roll. When the right wing dips downward, observe which way the right aileron responds. If installed correctly, the right aileron should deflect downward to counteract the right roll of the model. Similarly, when the left wing moves upward (as if in a right bank), the left aileron should deflect upward to counteract the right roll of the model. If your gyro responds opposite of the way described, turn the receiver switch off and reverse the DIPswitches on the gyro. Turn the receiver switch back on and test again.

CAUTION:If the gyro direction is set incorrectly, the model can’t be controlled anymore durcing flight.

If everything is installed correctly and checked, then the gyro gain should be set to about 30% for the first flights.

Operation MODE I (DIP-Switch 2 in Position OFF)
The gyro gain is controlled directly from the transmitter (AUX channel), and can be adjusted from 0% to 100% gain. However for the first flight we recommend starting with about 30%-40% gain. Once in the air, increase the gain slowly until the model starts to wag out, then reduce the gain until it stops.

If you are experienced with that function, you can adjust the dynamic pot and try to increase the gain.




Operation MODE II, HEADING (DIP-Switch 2 in Position ON)
If the gyro shall be used in HEADING, set DIP switch 3 in position ON. With this MODE the gyro offers both Modes, Standard- and HEADING-Mode. In HEADING-Mode the gyro holds the position of the stabilised axis as long as the stick is in centre position. During stick movement, the gyro has no function, the stick is directly working with the controls, after the stick has reached the centre position again, the gyro recognises the last position of the model as its new position to hold on. In MODE II the AUX channel changes as shown. Minimum sensitivity is in 0-position, maximum sensitivity in Standard-Mode is at one max. position of the sensitivity channel, max. sensitivity of HEADING-Mode is at the other end of the sensitivity channel. In that way it can be switched between Standard-Mode and HEADING-Mode. HEADING will be indicated with LED twinkling 3 times.

In HEADING it also should be started with 30%-40% sensitivity. Once in the air, increase the gain slowly until the model starts to wag out, then reduce the gain until it stops. If you are experienced with that function, you can adjust the dynamic pot and try to increase the gain.

During HEADING, you can say there is no stick trimm available, because a given trimm amount will lead to a a turn of the model. Therefore trim the model during use of Standard-Mode, then switch to HEADING. The trim position of Standard-Mode will be overtaken to zero position of the tail during HEADING. Any further trim movement during HEADING will start to turn the helicopters tail.

In HEADING-Mode, the gyro controls the angle speed in conjunction to the stick position, therefore any servo signal out of the centre position will result in turning the model.

Note: A slow drifting of the servo’s neutral position during HEADING is normal. During use it will be compensated.

Technical data’s
· Voltage range 3,3 Volt - 9 Volt
· Consumption about 45 mA
· Weight about 30 Grams
· Size 48 x 39 x 15 mm
· Temperature range -10° - +50° Celsius
· Servo-limiter by Software
· 3-level, self learning temperature drift compensation
· NORMAL/REVERSE-Switch
· 8-Bit Microprocessor, Clock speed 22 MHz, 4096 Bit
· Programmable Servo throw and centre position
· Adjustable dynamic without PC
· LOCK-ON-Function (Heading Lock) indicated by LED
· Low voltage drop compensation for max. 2 seconds, no problem with switching ON procedure
· LED-Monitor

We wish you much fun with the Fuzzy pro and a lot of more performance for your airplanes.

ACT europe, Talblickstraße 21, D-75305 Neuenbürg
www.acteurope.de

So can i use it on elevons then?

Hi Birdseed2,

Manual states, "monitors the rotation of the model around the gyro/s axis." That sounds to me like you can. Orientate the Gyro, in Mode 1, on the centre line of the aircraft, pointing fore and aft. Pitch should then not have an effect on the gyro's output but roll will.

Rgds,
Eric

Ben,
Sent you a PM but didnt hear back. Are you willing to sell the Fuzzy gyro? If so how much? Thanks
Tom

Eric you are quite correct.

We have 2 planes with elevons and have the fuzzy so that it applies to aileron operation only, it works great.

John