Goblin FIREBALL User manual

580mm
170mm
103mm
Page 1
//www.goblin-helicopter.com http:
Please read this user manual carefully, it contains instructions for the correct assembly of the model.
Please refer to the web site www.goblin-helicopter.com for updates and other important information.
VERY IMPORTANT
In the Manual bag you will find a product card with your serial number. Please take a moment to register
your kit online via our website:
It is extremely important that you take a moment to register your helicopter with us. This is the only way
to ensure that you are properly informed about changes to your kit, such as upgrades, retrofits and other
important developments. SAB Heli Division cannot be held responsible for issues arising with your model
and will not provide support unless you register your serial number.
The Serial number is also engraved in the Aluminum Main Plate.
Thank you for your purchase, we hope you enjoy your new Goblin helicopter!
SAB Heli Division
7 – Motor Assembly
8 – Installation of the ESC
9 – Assembly of the Motor
10 – Installation of Tail Belt Tensioner
11 – Installation of Swashplate Servos
12 – Head Sytem
13 – Assembly of the Main Module
1 – Serial Number
2 – Important Notes
3 – Components and Box
4 – Main Frame
5 – Tail System
6 – Installation Of The Boom
INDEX
14 – Flybarless control Unit
and RX installation
15 – Battery and Canopy
16 – Stickers
17 – In flight
18 – Maintenance
19 – Spare Parts
SPECIFICATIONS
Main rotor diameter : 626mm (with 280mm Main Blades)
Tail rotor diameter : 139mm (with 50mm Tail Blades)
Weight including standard electronics: 735g (excluding batteries)
SAB Direct Driver motor included
Micro size servo
50/60 A ESC
Battery compartment: 34x42x75 mm
Chapter 1, Serial Number

Page 2
Chapter 2, Important Notes
IMPORTANT NOTES
*This radio controlled helicopter is not a toy.
*This radio controlled helicopter can be very dangerous.
*This radio controlled helicopter is a technically complex device which has to be built and handled very carefully.
*This radio controlled helicopter must be built following these instructions. This manual provides the necessary information to correctly assemble the model. It is necessary to carefully follow all the instructions.
*Inexperienced pilots must be monitored by expert pilots.
*All operators must wear safety glasses and take appropriate safety precautions.
*A radio controlled helicopter must only be used in open spaces without obstacles, and far enough from people to minimize the possibility of accidents or of injury to property or persons.
*A radio controlled helicopter can behave in an unexpected manner, causing loss of control of the model, making it very dangerous.
*Lack of care with assembly or maintenance can result in an unreliable and dangerous model.
* Neither SAB Heli Division nor its agents have any control over the assembly, maintenance and use of this product. Therefore, no responsibility can be traced back to the manufacturer. You hereby agree to
release SAB Heli Division from any responsibility or liability arising from the use of this product.
SAFETY GUIDELINES
*Fly only in areas dedicated to the use of model helicopters.
*Follow all control procedures for the radio frequency system.
*It is necessary that you know your radio system well. Check all functions of the transmitter before every flight.
*The blades of the model rotate at a very high speed; be aware of the danger they pose and the damage they may cause.
*Never fly in the vicinity of other people.
DAMAGE LIMITS
SAB HELI DIVISION SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. Further, in no event shall the liability of SAB Heli Division exceed the individual price of the Product on which
liability is asserted. As SAB Heli Division has no control over use, setup, final assembly, modification or misuse, no liability shall be assumed nor accepted for any resulting damage or injury. By the act of use,
setup or assembly the user accepts all resulting liability. If you as the Purchaser or user are not prepared to accept the liability associated with the use of this Product, you are advised to return this Product
immediately in new and unused condition to the place of purchase.

Page 3
Chapter 2, Important Notes
LIMITED WARRANTY.
SAB Heli Division reserves the right to change or modify this warranty without notice and disclaims all other warranties, express or implied.
(a) This warranty is limited to the original Purchaser (“Purchaser”) and is not transferable. REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER This warranty
covers only those Products purchased from an authorized SAB Heli Division dealer. Third party transactions are not covered by this warranty. Proof of purchase is required for warranty claims.
(b) Limitations- SAB HELI DIVISION MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NONIFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE
PRODUCT. THE PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE PURCHASER’S INTENDED USE.
(c) Purchaser Remedy- SAB Heli Division’s sole obligation hereunder shall be that SAB Heli Division will, at its option, replace any Product determined by SAB Heli Division to be defective In the event of a defect,
this is the Purchaser’s exclusive remedy. Replacement decisions are at the sole discretion of SAB Heli Division. This warranty does not cover cosmetic damage or damage due to acts of God, accident, misuse,
abuse, negligence, commercial use, or modification of or to any part of the Product. This warranty does not cover damage due to improper installation, operation, maintenance or attempted repair by anyone
NOTES FOR ASSEMBLY
Please refer to this manual for assembly instructions for this model. Follow the order of assembly indicated. The instructions are divided into chapters, which are structured in a way that each step is based on
the work done in the previous step. Changing the order of assembly may result in additional or unnecessary steps.
Use thread lockers and retaining compounds as indicated. In general, each bolt or screw that engages with a metal part requires thread lock.
It is necessary to pay attention to the symbols listed below:
Indicates that for this
assembly phase you need
materials that are in Bag xx.
Use Proper Lubricant Use Thread Locker Medium
Strength ( SAB HA116-S)
Use CA Glue Use retaining compound
( SAB HA115-S )
Important
Bag xx

Page 4
Chapter 3, Components and Box
TOOLS, LUBRICANTS, ADHESIVES
*Generic pliers.
*Hexagonal Screw Driver, size 1.5, 2, 2.5mm.
*4.5, 5, 5.5mm Socket wrench.
*Medium threadlocker (eg. HA116-S)
*Strong retaining compound (eg. HA115-S)
*Spray lubricant (eg. Try-Flow Oil)
*Grease ( eg. Microlube GL261)
*Cyanoacrylate adhesive
*Pitch Gauge (for set-up)
*Soldering equipment (for motor wiring)
ADDITIONAL COMPONENTS REQUIRED
SG280 GOBLIN FIREBALL
*Speed controller: minimum 50A.
*Batteries: 6S – 1000/1250mAh.
*1 flybarless 3 axis control unit.
*3 cyclic servos ( Micro size ).
*1 tail rotor servo ( Micro sizes ).
*6 channel radio control system on 2.4 GHz.
The assembly process is described in the following chapters. Each chapter provides you with the bag you will need for that chapter.
The information is printed in RED color in the top corner of the page.
INSIDE THE BOX:
Main Box: Canopy, Landing Gear, Main Blades, Tail Blades,
Boom, Box 1, Box 2, Carbon Rod, Blade Holder.
Box 1: Motor , Servos & ESC for SG281.
Box 2: Bags.
MAIN BOX
BOX 1
BOX 2
SG281 GOBLIN FIREBALL COMBO
*Batteries: 6S – 1000/1250mAh.
*1 flybarless 3 axis control unit.
*6 channel radio control system on 2.4 GHz.
PRODUCT CARD
MANUAL

9-10mm
Servo Wire
Page 5
Chapter 4, Main Frame
Tail Servo Assembly
Socket Head Cap
Screws M2.5x8mm
(HC020-S)
Right Main Frame
(H0833-S)
Left Main Frame
(H0832-S)
Tail Servo is a Micro size ( 12x23mm )
(SAB DS12T: Frequency 760ms/560hz)
The distance between the axis and the
ball must be between 9 - 10mm
Servo Screw
(HA065-S) Uniball M2x
4xH3
(H0789-S)
SAB Servo Horn
(HA065-S)
SAB Tail Servo
Included in SG281
(HE019-S)
Tail Servo
Assembly
BAG 1
Socket Head Cap
Screws M2.5x8mm
(HC020-S)
Note:
The tail servo is held in place by the tension created when the main frame is assembled; this means that there is no requirement to attach the servo directly with screws.
The tail servo can be removed by loosening the screw that tensions the frame to the tail boom. There is no requirement to disassemble the frame completely.

Page 6
Chapter 4, Main Frame
Washer
2.1x 4.5x0.5mm
[H0566]
Socket Head Cap
Screw M2x8mm
(HC008-S)
Socket Head Cap
Screw M2x8mm
(HC008-S)
Washer
2.1x 4.5x0.5mm
[H0566]
Landing Gear
(H0799-S)
Socket Head Cap
Screw M2x10mm
(HC010-S)
Landing Gear Assembly
BAG 1

Small ID
Large ID
Note: S >> Left Side
Note: S >> right Side
Page 7
Chapter 5, Tail System
Tail Rotor Hub Assembly
Tail Shaft
(H0842-S)
Tail Hub
(H0771-S)
Set Screw M3x4mm
(HC500-S)
Tail Pitch Slider
(H0775-S)
Flanged Bearing
4x 7x2.5mm
(HC486-S)
Tail Pitch Slider Assembly
Socket Head Cap
Screw M2x5mm
(HC002-S)
Washer
2.5x 4.5x0.5mm
(H0566-S)
Thrust Bearing
3x 6x2,8mm
(HC448-S)
Shim
4.5x 5.9x0.3mm
[H0794]
Ball Bearing
3x 6x2mm
(HC487-S)
Ball Bearing
3x 6x2mm
(HC487-S)
Uniball M2x
4xH3
(H0789-S)
Tail Rotor Hub
Assembly
eg: Microlube GL261
Tail Pitch Slider Link
Assembly
Tail Pitch Slider Link Assembly
Tail Pitch Slider
Assembly
Socket Head Cap
Screw M2x6mm
(HC004-S)
Uniball Arm
(H0777-S)
Bushing
2x 3 x 3mm
[H0076]
Socket Head Cap
Screw M2x6mm
(HC004-S)
Note:
It is a normal for the tail to feel tight after
initial assembly. After 2-5 flights, the tail
system will loosen and feel much smoother.
eg: Microlube GL261
BAG 2
Note: Do not over tighten,
be careful to avoid stripping
the plastic .

Tail Fin
(H0791-S)
Tail Pulley
(H0782-19-S)
Set Screw
M2.5x4mm
(HC499-S)
Socket Head Cap
Screw M2x12mm
(HC014-S)
Note: The set screw should align
with the hole in the tail shaft.
Tail Belt HTD 2M 850
(HC491-S)
Tail System Assembly
Page 8
Chapter 5, Tail System
Tail Plate
(H0780-S)
Bell Crank Support
(H0778-S)
Uniball M2x
4xH3
(H0789-S)
Flanged Bearing
3x 8x3mm
(HC485-S)
Flanged Bearing
2x 5x2.5
(HC456-S)
Bell Crank Lever
(H0797-S)
Bushing
2x 3 x 3mm
[H0076]
Socket Head Cap
Screw M1.6x5mm
(HC497-S)
Tail Side Plate Assembly
Bell Crank Lever Assembly
Tail Side Plate
Assembly
Bell Crank Lever
Assembly
Socket Head Cap
Screw M1.6x5mm
(HC497-S)
Flanged Bearing
3x 8x3mm
(HC485-S)
BAG 3
Note: Do not over tighten,
be careful to avoid stripping
the plastic .
Tail Pin
(H0781-S)
Tail Pin
(H0781-S)
eg: Microlube GL261
Shims
2.1x 3.6x0.2
[HC508]

10mm 10mm
Aprox 316mm
Page 9
Chapter 5, Tail System
Tail System
Assembly
Socket Head Cap
Screw M2x6mm
(HC004-S)
Socket Head Cap
Screw M2x6mm
(HC004-S)
Washer
2.5x 4.5 x 0.5mm
[H0566]
Washer
2.5x 4.5 x 0.5mm
[H0566]
Yellow Tail Boom
(H0818-S)
Note: Please allow plenty of time for the glue to cure before inserting the plastic ball link onto the threaded rod.
Uniball Arm
(H0779-S)
Linkage M2x22mm
[H0561]
Carbon Rod 1.8x3x276mm
(HC489-S)
Linkage M2x22mm
[H0561]
Uniball Arm
(H0779-S)
BAG 4

CC
Page 10
Chapter 6, Installation Of The Boom
Main Frame Assembly
Carbon Rod
Assembly
Unscrew the M2.5x8mm screw shown in the picture.
Insert the belt and the boom.
Push until you hear the boom "click” into the frame.
Tighten the M2.5x8mm screw.
Tail Boom
Assembly
" Click "
Install the carbon rod

Page 11
Chapter 7, Motor Assembly
SAB Motor
(HE014-S)
Motor Pulley 76T
(H0820-S)
Button Head Cap
Screw M2x4mm
(HC001-S)
Motor Assembly
Socket Head Cap
Screw M2x5mm
(HC002-S)
Motor
Assembly
Main Plate
(H0838-S)
Socket Head Cap
Screw M2x5mm
(HC002-S)
BAG 5.1, BAG 5.2
Before installing the motor, securely solder the connectors in place.
(Connectors are included in the COMBO kit SG281 ).

Page 12
Chapter 8, Installation of the ESC
SAB ESC
(HE022-S)
Included in SG281
Socket Head Self
Tapping Screw M2.2x6mm
(HC490-S)
Cable Block
(H0858-S)
BAG 5.3
Zip Tie
[HA058]
Note: Make sure to secure the ESC in place with a zip tie.

Page 13
Chapter 9, Assembly of the Motor
Socket Head Cap
Screw M2.5x6mm
(HC018-S)
Motor Assembly
BELT DIRECTION
IMPORTANT CAUTION! Observe the direction of rotation.
Check that the belt is not twisted.
BAG 5.4

Page 14
Chapter 10, Installation of Tail Belt Tensioner
Tail Belt Tensioner
Left Tail Belt
Tensioner Support
(H0870-S)
Column Tail
Belt Tensioner
Flanged Bearing
4x 7x2.5mm
(HC486-S)
Flat Head Cap
Screw M2.5x5mm
(HC128-S)
Socket Head Cap
Screw M2.5x6mm
(HC019-S)
Left Tail Belt Tensioner Assembly ( H0870-S)
Flat Head Cap
Screw M2.5x5mm
(HC128-S)
Right Tail Belt
Tensioner Assembly
Left Tail Belt
Tensioner Assembly
Flat Head Cap
Screw M2.5x5mm
(HC128-S)
BAG 5.5
Socket Head Cap
Screw M2.5x6mm
(HC019-S)
Tail Belt Tensioner
Flanged Bearing
4x 7x2.5mm
(HC486-S)
Column Tail
Belt Tensioner
Right Tail Belt
Tensioner Support
(H0899-S)
Flat Head Cap
Screw M2.5x5mm
(HC128-S)
Right Tail Belt Tensioner Assembly ( H0899-S)
Washer
2,6x 6x0,5mm
Washer
2,6x 6x0,5mm

9-10mm
Page 15
Chapter 11, Installation of Swashplate Servos
INSTALLATION OF SWASHPLATE SERVOS
Servo Screw
(HA065-S)
Uniball
M2x
4xH3
(H0789-S)
Servo Arm
(HA065-S)
SAB Cylic Servo
included in SG281
(HE018-S)
The Cyclic servos are micro size. (SAB DS12C: Frequency 1520ms/333hz)
The linkage ball must be positioned between 9/10 mm out on the servo arm ( Figure 1 ).
It is advisable to ensure alignment of the servo arms (and sub trim set)
before installation of the servos in the model.
Proceed with installation following the instructions below.
SERVO ASSEMBLY 1, 2, 3
FRONT
SERVO SUPPORT ASSEMBLY
Socket Self Tapping
Screw M2.2 x 6mm.
(HC490-S)
Front Servo Support
(H0819-S)
Back Servo Support
[H0830]
Note: Do not over tighten,
be careful to avoid stripping
the plastic .
Socket Self Tapping
Screw M2.2 x 6mm.
(HC490-S)
Socket Self Tapping
Screw M2.2 x 6mm.
(HC490-S)
BAG 6

Page 16
Chapter 11, Installation of Swashplate Servos
Socket Head Cap
Screw M2x8mm
(HC008-S)
Socket Head Cap
Screw M2x6mm
(HC004-S)
BAG 6

Aprox 25.5mm
Smaller ID
Large ID
Page 17
Chapter 12, Head System
Flanged Bearing
2x 5x2.5mm
(HC456-S)
Blade Grip Arm
(H0795-S)
Socket Head Cap
Screw M2x5mm
(HC002-S)
Blade Grip Arm
Assembly
Bearing
4x 9x2.5mm
(HC403-S)
Blade Grip
(H0785-S)
Bearing
4x 9x2.5
(HC403-S)
Blade Grip Assembly .....x2
Main Shaft
(H0784-S)
Main Hub
Oring 70 Shore
(HC501-S)
Main Spindle
(H0792-S)
Center Hub Assembly
Blade Arm Assembly ( H0795-S ) ....x2
DFC Arm
Uniball Arm
(H0779-S)
Socket Head Cap
Screw M3x6mm
(HC044-S)
Thrust Bearing
4x 9x4mm
(HC434-S)
Washer
7x 8,7 x 0.5mm
[H0062]
Socket Head Cap
Screw M2x8mm
(HC008-S)
Center Hub
Assembly
Blade Grip
Assembly
eg: Microlube GL261
Main Rotor Assembly
Spacer
4x 6,9x0,4mm
(H0219-S)
DFC Arm
Assembly
BAG 7
Add some green retaining
compount in this zone

Bearing Support
Assembly
Swashplate
Assembly
Page 18
Chapter 13, Assembly of the Main Module
Bearing Support
(H0837-S)
Ball Bearing
4.77x 12.7x4.99
(HC488-S)
Ball Bearing
4.77x 12.7x4.99
(HC488-S)
Bearing Support Assembly Swashplate Assembly
Uniball
M2x
4xH3
(H0789-S)
Uniball M2x
4xH3
(H0789-S)
Reference pin
(Included in H0789-S)
Swashplate
(H0788-S)
eg: Microlube GL261
Main Rotor
Assembly
Start by adding 3 shims to
remove any Axial main shaft play.
Check that all play has been
removed, if required add or
remove shims.
Shim
5x 7x0.1mm
(HC450-S)
Set Screw M3x4mm
(HC500-S)
Feeder
(H0839-S)
Feeder Damper
(Included in H0839-S)
Press inside
Note:
The set screw should align
with the hole in the main shaft.
BAG 8

Socket Head Cap
Screw M3x10mm
(HC056-S)
Be careful, do not pinch the wires.
Aprox 20mm
Page 19
Chapter 13, Assembly of the Main Module
BAG 9
Servo Linkage
(H0796-S)
Servo Linkage
(H0796-S)
Note:
It is possible to
insert the linkage
using both sides.