ACE RC GT5 User Manual

	3-axis
No.8085	Flybarless System

Introduction / Security

The GT-5 is a high performance electric stabilizing 3-axis gyro, which was designed for flying helicopters flybarless.

The GT-5 can be used with a bride variety of receivers on the market. If you use Spektrum you can just use the satelites without the need of an additional receiver. We remind you that nor Spektrum neither we can guarantee the full range and funcionality if you use it only with the satelites.

Because of the variety of electronic manufacturers on the market we can give no guarantee for failures and consequentional damage, if an direct malfunction of the GT-5 cannot be detected.

We didn´t test the GT-5 in combination with turbine powered helicopters. For this reason we can give no clearance for using the GT-5 in turbines. If you want to use it with turbines anyway, the usage will be on your own risk.

We remind you, that the GT-5 is made for use in RC helicopters and for this reason it´s not a toy. Flying a helicopter has to be realized always on special, approved places with the usual security precautions in order not to harm yourself or property of other persons.

Any liability due to the mentioned notes in the upper part is disclaimed by the manufacturer, THUNDER TIGER EUROPE and the seller.

Features

Very precise electric 3 axis stabilizing system

OLED Display with Icon based User Interface

„Touch-Pad“ for easy handling without the need of additional hardware

Supports normal PPM receivers, Spektrum & JR satelite-receivers, Futaba S-Bus receivers and many more…

Suitable for Futaba and JR Servo- & RC-plugsystems

Compact size and lightweight

High-qualitative Aluminium Case for optimal heat sink

Spezifications

Display Screen	96 x 64 pixels OLED
Input	Touch Pad
CPU	32-Bit High Speed Processor
Sensor-Speed	MEMS mir ± 500°/sek for X-Y-Z Axis
Tail-Impulse	1500us/970us/760us
Tail-Frequency	50Hz – 333Hz
Swashplate-Frequency	50Hz – 200Hz
Swashplate-Types	90°, 120°, 135° (140°)
Dimensions	29,5 x 32 x 16mm
Weight	15g

Included in Package

GT5	1-3 RC-Cable

Manual

Pads

Note: The pads are very hard, but normally suited for all kinds of helicopters. For some Nitro helis or helicopters with a lot of vibrations you can use softer pads. Be careful with those soft pads, because they can cause malfunctions with the GT-5. Allways use booth pads!

Connectors

				8	Imp2	- Normal receiver / or channel 5 output
				7	Term	- Normal receiver
				6	Imp1	- S.Bus / Normal receiver
				5	Ail-r	- Aileron right
				4	Ele	- Elevator
				3	Ail-l	- Aileron left
			2		Tail	- Tail
			1		Throt	- Throttle or ESC

							Pulse
							+
							GND-
Connectors for		2,4GHz Spektrum	Note: The connector No.7 (Term) is a
Satellite Receiver			3 Ch connector. It can be used with
Note: If you use satelite mode			the 1-3 cable for usage with normal
you always must connect 2			receivers for example.
satelites!

Connecting with Receiver/ Satelites

Spektrum Satellite receiver can be directly connected with the GT5. The favor is a very easy installation in which the GT5 is working as the main-unit at which you just have to connect the servos (please read the security note for using the GT5 without external receiver). You can also use the GT5 with Futaba S-Bus. here you just have to connect the S-Bus wire to the Ch6 of GT5. Because the tecnology with S-Bus and satelites change all the time we cannot give a guarantee of 100% compatibilty. For this reason the operation is at your own risk.

Spektrum/JR Satellite Receiver or Futaba S-Bus

dsm dsm SatelliteReceiver

Channel 5 output. For example: Speed governor for Nitroheli

S- bus Receiver

SERVO

SERVO

SERVO

SERVO

ESC / BEC

!For saving the servos of damage, the GT5 should be connected just with a receiver battery before you connect the servos and do the servo setup (next column, step 4). If you have an electric heli, also the ESC/BEC has to be configured and set correctly before you connect the GT5.

Settings

The GT5 has to be fixed perpendicular on the gyro plate of your helicopter!

First Settings

1 Starting the device

After the system has booted, a cursor will appear at the left side depending where you touch the reactive part of the case of the GT5.

2 General handling

if you move the cursor upwards to the ACE-RC Logo and hold it there for 3 seconds, you will enter the main menu of the GT5. You can choose a menu entry with a double tap. You can exit a menu entry with a tap on the „exit“ symbol or the icon which displays an arrow pointing upwards.

Standard receiver	SERVO
Throttle	(for Nitro)
ESC

Aileron

Rudder

Gain Receiver

Pitch

Elevator

SERVO SERVO SERVO SERVO

3 Choosing Nitroor Electric-Helicopter:

In the swashplate menu (which you can recognize due to the swashplate icon on the left side) you should at first choose the type of helicopter (Nitro or electric).

One example:

-Hold the ACE Logo 3 seconds

-Search the swashplate menu (use

your finger to scroll up and down)
- Double tap on the swashplate	icon
- Choose icon - Heli and text „type“
- Double tap
- Choose Nitro or Electric (use your
finger to scroll up & down)	Nitro	Electronic
- Double tap for accepting

4 Swashplate - Setup:

Here you have to choose the kind of swashplate which is needed for your helicopter. More hints you will find on the back of this manual.

This pin could be connected to battery

Connecting battery / BEC

ESC

BATTERY

If you use the GT5 or S-Bus with an electric helicopter and you have a speed controller with integrated BEC, its not obligatory that you use an external receiver battery. With some BEC the volatge during hard flight can crash down. So we recommend paying attention to the manual of the ESC manufacturer. If you are not sure what to do you can always use an external battery for feeling more secure. The voltage of the external battery should be equal to the voltage of the BEC feed-in.

Important settings for the transmitter:

All swashplate mixing is done by the GT5. In your transmitter you

!have to choose as swashplate type „mechanical or 1 servo for each function“. So you MUST NOT choose in your transmitter a swashplate type like 120° or 140°. Also all servo travellings (ATV) should be set at -100 and +100 (Standard configuration for all transmitters). All servo centers should be at 0 and must not be trimmed at the transmitter. The pitch curve should be set from -100 to + 100 for configuration. After the configuration of the GT5 is finished you can set different pitch curves in your transmitter.

Display

Pitch

Aileron

5 Servo-Frequency Setup:

Set the Servo-Frequency and speed. Please check which maximum values can be used for your servos. If one servo is built for 166Hz and you use it with a higher frequency setting (e.g. 200Hz) it could damage the servo.

Center impulse of the tail servo:

For most tail servos the standard is 1500us (for 1520 also choose 1500). For narrow-band servos you can set 760. Please refer to the manual of your servo.

Servospeed: For tail and swashplate servos the performance can be set individually. If you don´t know what to set, choose 0,70.

If you choose too high values it could damage the servos. Some manufacturers display the servo speed for 60°, please calculate it for 45° yourself.

6 Receiver Setup:

The GT5 supports three different kinds of receivers. Standard-receivers, Spektrum Satellites and Futaba S-Bus. If you use Spektrum-Satellites, you have to set this in the receiver menu (see graphic) to SPEKTRUM. Afterwrards you choose the menu with the „shaking hands“ and accept this with a double tap.

Now the LEDs on both satelites have to flash. Afterwards press the Bind Button on your Spektrum transmitter while switching it on. After the binding procedure the LEDs on the satelites have to shine permanently. For checking if all functions are doing fine, switch both GT5 and transmitter off and turn it on again.

If you want to use a standard receiver or S-Bus you have to connect it with all the connected wires to the GT5 and select the receiver type in the menu.

Elevator

Rudder

Voltage Check:

Upper value: Highest voltage during flight Center value: Voltage actually

Lower value: Lowest voltage(break-in)during flight

Total gain for swashplate and tail:

This function is for quick raising and reducing of the gyro gain for swashplate and tail. While flying there should be ideally displayed 100% gain. If you´ve set too much gain it doesnt matter if the heli is swinging up on swashplate or tail. You can push one switch for getting it to a pre-configured gain (e.g. 60%). Now the swinging on all axis should stop and the helicopter can be landed safely. Afterwards you can reduce the gain in the setup. For this reason we recommend to lift of with the lower gain and switch to 100% when the heli has a safety hight, if you´re flying with a new setup or changed gain. If the helicopter doesn´t swing up, the gain isn´t too high.

If the GT5 is working correctly, you can check the functionality of the sensors via the graphical bars in the display.

If you move the helicopter manually around its 3 axis, the connected bar should move upwards or downwards.

If the bars don´t remain at the center position after finishing the test it´s not a malfunction.

If you move the sticks at your transmitter, the bars also have to move.

If not you have to check your receiver in order for receiving failures.

7	Setup „Auto EXIT“:
	Before each flight you have to go back into the main menu of the

GT5. If not, the heli would be controlled without stabilizing. For security reasons we integrated an configurable Timer.

After a certain time (choosable between 3 and 250 seconds)

the GT5 will automatically go back to the main menu if you don´t use it. We´ve seen that a value of 25 seconds is suitable for most

of the pilots, because normally between leaving the heli and starting the engine there pass 25 seconds.

8Setup swashplate Servo-directions:

here you have to adjust the direction of the 3 servos, so that all are going into the same direction while giving pitch positive or negative. If you give pitch positive control, the swashplate has to go either up or down. If one servo goes into the wrong direction you have to reverse it in the menu (Rev.). The right direction of pitch, aileron and elevator controls will be set afterwards in the transmitter, using the „servo reverse“ function.

9 Setup gain direction of swashplate controls:

If the nose of the heli is pushed down, the swashplate has to move in the other direction and stay horizontally. If the heli is rolled to the left the swashplate has to move automatically to the right and stay horizontally. If this doesn´t happen the gain direction of the function which goes wrong has to be reversed in this menu.

if the direction of the aileron sensor is going in the wrong direction, you have to reverse the sensor function „Ail“ in the menu. If the sensor direction for elevator is going wrong, you have to reverse the function „Elv“ in the menu.

10 Setup gain direction of tail control:

If the tail of the heli is pushed to the right, the tailrotor has to be controlled to the right by the GT5 (so that the tailrotor would blow to the right in order to set the tail again to the left). This you may never try with running blades, because there is too much danger of hurting yourself!

11 Setup pirouetting correction:

In the sensor menu you can choose the pirouetting correction named „Pir“. If you enter with a double tap the test mode will be activated. Now the swashplate of the heli will be pushed into one direction. If you rotate the heli now in a circle, the swashplate should remain pushed into one direction. If the swashplate will change the direction during moving the tail, the pirouette correction has to be reversed by scrolling up/down with your finger. For safety reasons, please enter one more time this menu and repeat the test.

If you notice that your flown pirouettes are changing location, the value of this setting is not perfect. Please change the value and try it again until the pirouttes run perfectly on the same spot.

12 Setting the servo center point:

If you have 0° Pitch the servo horns should be going vertically (Doing a 90° angle to the rods). Is this then rotor head If you don´t have 0° Pitch with centered servo horns, you have to change the rods of your rotorhead.

The tail servo should also have an 90° angle from the horn to the rods. These trims you must not set in the transmitter but only in the GT5.

13 Tail-stick dynamic (stick-dynamic):

Stick dynamic has influence on the reaction speed between the control given until the reaction of the tail. For extreme reactions (3D flying) the value should be set to 50. Scale pilots can get a „softer“ tail if they set this value to 25. The exact value has to be experienced by every pilot himself.

14 Servo Tavel - complete travel

First you have to set a value to all three servos, so that the swashplate will not bind mechanically while giving full controls. With this travel setting all controls for elevator, aileron and pitch will be reduced. You can adjust the pitch itself in an extra swashplate menu. You´ll find more hints on the back of this manual.

	Servo limit
15
	swashplate

Normally it´s not necessary to change this values. But if the swashplate is binding while giving full aileron or elevator controls, although in the servo-travel menu the servos 1,2 and 3 were set to their minimum, you can reduce here the travel equally until there´s no more binding (check this in the main menu with the bars at 100% gain). The travel of the pitch will not be influenced by this setup.

16 Pitch travel & agility:

In the swashplate menu you can find the „Pit“ Mix, here you can set the maximum travel of pitch. You should have a pitchcurve from -100 to +100 set in your transmitter. Now give full collective pitch and check the angle with a pitch gauge. Now you put this into the GT5. The pitch can be set later according to the idle up´s in your transmitter.

For the values aileron and elevator you will not set the minimum and maximum travel but the maximum agility. As a good starting point you can set it to 100. More hints for this setting you´ll find on the back of this manual.

17 Servo limit tailrotor - VERY IMPORTANT !

This adjustement is very important for saving the tailrotor servo from damage. After selecting this menu you

can adjust both traveling directions of the servo.

Before connecting the servo the first time please remove the horn from the servo in order to avoid mecanical binding caused by too much travel. Please activate with by double clicking the tailrotor limiter (A) and give full tail control in one direction. If you change now the value you have to see how the servo is changing its travel endpoint. If you don´t see anything try giving control to the other direction. After doing this, adjust the travelling endpoint for (B). If you reduce the value you´ll reduce the endpoint, with higher values you´ll maximize the endpoint. When your setup is finished, the servo must not bind mecanically, equally in which direction you are giving tail control.

Adjustements

Menu: P/I Setup

Submenu of P/I Setup: Setup swashplate:

P is for the crispier stopping of the swashplate. P Higher values result in a quicker stopping

behaviour.

Too high values lead to swinging.

I will lead to a constant rolling/flipping. Please I try first tiny values (30%) and increase it until you get a constant roll/flip-rates. Do not

increase it more after getting this result.

This value should remain at 100 because then

I-D-stick it´s perfect for fast travelling maneuver. More hints for I-D-stick you´ll find on the back of

this page in the swashplate category.

It has direct influence on the stopping behavior of the swashplate. If the heli is seesawing a bit after stopping it over elevator you should at

D-sense first increase this parameter. Please increase this value in intervals of 5 and test the stopping behavior afterwards. More hints for finding the optimum swashplate adjustements you´ll find on the back of this page.

The „directness“ for the heli´s reaction on the given stick controls of the pilot. 3D pilots

Feed forward should try values about 80 until 95. If the value is too high, the heli will end in seesawing after

stopping over elevator.

If the heli is not staying in one direction/height during flying forward and seems to fly a

I-lim wave-line you can increase the l-Lim until the heli is flying straight forward. Normally you should not have to change this value.

Controls how “stable” the helicopter is

controlled by the GT5 during hovering. Hovering More stability = higher value.

Our pilots used a value of 3-4.

I-D-Stick and I-Sens are giving direct influence to the stopping behavior. Depending on your personal style you can adjust this

!anything. Depending on the helicopters size, weight and the kind of rotorhead it´s possible that you´ll notice a seesawing effect after hard stopping over elevator. This effect is removable if you find the perfect adjustements of both values.

The adjustement of the tail stopping behaviour is working in the same style.

!If you use Spektrum satelites, Channel 7 is used for the total gain. if you use an external receiver, the center pin of the

„term“ connector of the GT5 is used for the total gain (center pin of the 1 in 3 cable)values as you like. Normally you don´t have to change

Menu: P/I Setup

Submenu of P/I Setup: Setup tailrotor:

						Higher value - quicker stopping at the tail and
					P	more stable when flying hard manovers. If the
						value is too high the tail will begin to swing. If
						it´s too low the tail will be very unstable
						Is used for constant pirouettes. Start with 30%
						and increase the value until the pirouettes are
					I	constant during travelling figures. Value is too
						low = unconstant pirouettes. value too high =
						slow swinging tail
					D-Sense	If the tail is not stopping fast enough you can
						optimize it here. Normally it should not be
						necessary to change this value.
						If the tail is swinging during hovering, you can
						eliminate this effect here (deadband), but just
					Tail-D-DB	if there´s no other value adjusted wrong or a
						mechanical problem with the tail.
						Tiny value - tiny deadband
						If you stop the tail and you can see that it´s
						stopping crispy in one direction but slow in the
						other you can optimize this here. please adjust
						the value until you have the same stop
						behaviour on both sides. Normally the result
					Tail-symmetric	will be that the stopping behaviour on the one
						side is getting better and on the other worse.
						Now you can try with changing P and/or
						D-Sense to reduce/remove the after bouncing.
						If you wish you can also try the smooth stop
						function if you don´t reach a satisfying result.
						Normally there should not be any need to
						change the Tail-Symmetric values.
						This value controls the reaction speed from
					Tail	the pilot´s input to the tail. 3D pilots should
						try a value of 50. Pilots who want to have a
					Stick-dynamic	„smooth“ tail (scale), should try a value of
						25. if you adjust values more than 50, it´s
						possible that the tail will begin to swing
						These two functions are working perfect is
						they are adjusted together. If the tail is
					DMA-cyclic	moving sideways during pitch pumps, the
						DMA pitch can be increased until the tail will
						stay at the same position. If you need to
						adjust it to + or - depends on the heli/servo.
						You can control it before flight by giving pitch
						or cyclic controls when this function is
					DMA-pitch	activated. Now the tail should control versus
						the torque. The value of DMA cyclic is normally
						about 1/3 less than DMA pitch (e.g.DMA pitch:
						30; DMA cyclic: 20)
						It can be used for even harder stopping
					smooth-stop	behavior. Normally you should not change this
						value. Under some circumstances it may
						overload the servo.