GRAUPNER HoTT Hornet 250 User manual

EN
No. 16540.RTF
Tricopter with mz-12 transmitter
HoTT Hornet 250
Manual
Copyright © Graupner/SJ GmbH

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Index
Introduction......................................................................... 4
Service Centre .................................................................... 4
Intended use ....................................................................... 5
Package content................................................................. 5
Symbols explication ........................................................... 6
Safety notes ........................................................................ 6
Safety notes for battery ...................................................... 7
Safe use of the battery charger .......................................... 8
Safety notes during the use................................................ 9
Battery charging process ................................................ 10
Preparation before use .................................................... 10
Battery installation ............................................................ 10
Binding receiver and transmitter ....................................... 10
Transmitter switches function......................................... 11
Auto-flip function through switch S2................................. 11
LED function head through S6 ......................................... 11
Initialization of the gyro in the receiver .......................... 12
Installing the propellers ................................................... 12
Using camera / transmitter.............................................. 13
Receiver settings.............................................................. 13
First flight .......................................................................... 13
Flight control MODE 2...................................................... 14
Technical Data .................................................................. 16
Replacement parts ........................................................... 17
Firmware update receiver................................................ 18
Declaration of conformity ................................................ 19
Notes on environmental protection ................................ 20
Care and maintenance..................................................... 20
Warranty ............................................................................ 20

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Introduction
Thank you very much for purchasing the Graupner HoTT Hornet.
This Tricopter is extremely versatile.
Read this manual carefully to achieve the best results with your
HoTT Hornet and first of all to safely control your models. If you
experience any trouble during operation, take the instructions to
help or ask your dealer or Graupner Service Centre.
Due to technical changes, the information may be changed in
this manual without prior notice. Be always updated by check-
ing periodically on our website, www.graupner.de to be always
uptodate with the products and firmwares.
This product complies with national and European legal require-
ments.
To maintain this condition and to ensure safe operation, you must
read and follow this user manual and the safety notes before using
the product!
NOTE
This manual is part of that product. It contains important information
concerning operation and handling. Keep these instructions for future
reference and give it to third person in case you gave the product.
Service Centre
Graupner Central Service
Graupner/SJ GmbH
Henriettenstraße 96
D-73230 Kirchheim/Teck
Servicehotline

(+49) (0)7021/722-130
Monday - Thursday:
9:15 am - 4:00 pm
Friday:
9:15 am - 1:00 pm
[e-mail]
Graupner USA
3941 Park Dr Suite 20-571
El Dorado Hills, CA 95762
Website: www.graupnerusa.com
Phone: [phone]
Email: [email protected]
Graupner in Internet For the service centers outside Germany please refer to our web
site www.graupner.de

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Intended use
The HoTT Hornet is a remote controlled tricopter. Punctual tech-
nical information can be found in the Technical data section and
in the manuals included with the components.
The HoTT Hornet is designed exclusively to be used as a bat-
tery-powered, radio controlled model, any other use is not
allowed. For any improper use no warranty or liability is accepted.
Graupner/SJ constantly works on the development of all prod-
ucts; we reserve the right to change the item, its technology and
equipment.
Intended use of the battery
Graupner LiPo batteries should only be used in RC. Any other
use is improper mistreatment of LiPo batteries can cause smoke,
fire and explosions. Ignoring the guidance and warnings can
result in poor performance and other defects.
Target group
The HoTT Hornet is not a toy. It is not suitable for children under
14 years. For questions about radio-controlled models, please
contact an experienced RC model expert or a RC model club.
Package content
HoTT Hornet 250 with motors and speed controllers
2 propellers sets
LED Set (installed)
HoTT Gyro receiver
Video transmitter
FPV Cam
LiPo battery 9717.3.D35.XH
LiPo balancer charger
Voltage module (installed)
User manual HoTT Hornet 250
mz-12 HoTT transmitter with short manual
The detailed manuals for ESCs, voltage module, charger and
receiver are included in the package.
The most recent programming manual for mz-12 transmitter are
available on www.graupner.de

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Symbols explication
!
Always observe the information indicated by this warning sign.
Particularly those which are additionally marked with the CAU-
TION or WARNING. The signal word WARNING indicates the poten-
tial for serious injury, the signal word CAUTION indicates possibil-
ity of lighter injuries.
Note indicates potential malfunctions.
Attention indicates potential damages to objects.
Safety notes
WARNING
This safety notes are intended to protect you and other people.
They are also used for safe handling the product. Therefore
please read this section very carefully before using the product!
• Do not carelessly leave the packaging material lying around,
since it might become a dangerous toy for children.
• Persons, including children, with reduced physical, sensory
or mental capabilities, or lack of experience or knowledge,
or not capable to assemble and use safely the HoTT Hornet
must not use the HoTT Hornet without supervision or instruc-
tion by a responsible person.
• Operation and use of radio-controlled models needs to be
learnt! If you have never operated a model of this type before,
start carefully and make yourself familiar with the model's
reactions to the remote control commands. Proceed respon-
sibly.
• First, always perform a range and function test on the ground
(to do so, hold your model tight), before you use your model.
Repeat the test with running motor and with short throttle
bursts.
• Before you start using the remote control model, you have
to check the further relevant laws and regulations. These
laws you must obey in every case. Pay attention to the pos-
sibly different laws of the countries.
• The insurance is mandatory for all kinds of model operation.
If you already have one, so please inform yourself if the oper-
ation of the respective model is covered by your insurance.
If this is not the case, conclude a special liability insurance
policy for models. We recommend to provide the HoTT Hor-
net with a label, where are indicated the name, address, tel.
n., E-mail and Insurance N. So that the copter can be clearly
assigned in the event of a crash.
!
Inform yourself before flying
your model on which maximum
altitude you can fly in the
uncontrolled airspace over the
starting position and do not
exceed it.

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• Due to safety and licensing reasons (CE), any unauthorized
reconstruction and/or modification of the product is prohib-
ited.
• Only use the components and spare parts that we recom-
mend. Always use matching, original Graupner plug-in con-
nections of the same design and material.
• Make sure that all of the plug-in connections are tight. When
disconnecting the plug-in connections, do not pull the
cables.
• Protect the Copter from dust, dirt, moisture and other foreign
parts. It must be protected from vibration as well as exces-
sive heat or cold. The models may only be operated remotely
in normal outside temperatures such as from -10°C to
+55°C.
• Only operate all your HoTT components using the current
software version.
• If you have questions which cannot be answered by the
operating manual, please contact us (contact information
see page 3) or another expert in the field.
Safety notes for battery
CAUTION
LiPo batteries are not a toy. Persons, including children, with
reduced physical, sensory or mental capabilities, or lack of
experience or knowledge, or not capable to use safely the
battery must not use the battery without supervision or
instruction by a responsible person.
Any alterations to the battery, charger or charging cables
can cause serious injury. Risk of fire and explosions! Risk of
burns!
Do not use any damaged battery or charger, risk of short-cir-
cuit and fire!
Storage
LiPo batteries should be stored with a voltage of about 3,8V per
cell. If the cell voltage falls below 3 V, then the battery must be
necessarily charged. Deep discharge and storage in discharge
status (cell voltage < 3V) make the battery useless. For transport
and storage the LiPo batteries must be placed in a safety case
e.g. No. 8371.
!

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Safe use of the battery charger
WARNING
Persons, including children, with reduced physical, sensory
or mental capabilities, or lack of experience or knowledge,
or not capable to use safely the charger must not use the
charger without supervision or instruction by a responsible
person.
The battery charger should be connected only to power
sources which voltage complies with the indications on the
label! See technical data. Risk of fire!
The connection socket for the battery is polarized, Never use
force while inserting the connector . It must plug easily.
Short-circuit and fire risk!
The battery charger can be used only in dry spaces.
The charger should always be supervised during charge and
it should be used only in rooms fitted with a smoke detector.
A damaged charger or power cord must not be used until
they are repaired by the manufacturer, his customer service
or a suitably qualified person. Electric shock risk!
The charger is only suitable for LiPo batteries, it cannot
charge other types of batteries (eg Nixx, LiFe, Pb). If you con-
nect other type of batteries to the charger, both battery and
charger can be damaged, risk of fire and explosions!
A wet charger, even if re-dried, should no longer be used.
Risk of electric shock!
Due to safety and licensing reasons (CE), any unauthorized
reconstruction and/or modification of the product is prohib-
ited. Risk of electric shock!
Protect the charger from dust, dirt, moisture and other for-
eign parts. It must be protected from vibration as well as
excessive heat or cold.
Do not cover the charger during charge, the ventilation slots
must be free. Risk of fire!
The charger and the battery to be charged must be placed
on a non-combustible, heat-resistant and non-conducting
surface during operation. Do not use the charger near easily
flammable materials.
Always disconnect the charger from the power supply when
it is not in use.
!

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Safety notes during the use
WARNING
• Also while programming, make sure that a connected elec-
tric motor cannot accidentally start. Injury risk by the turning
propellers! Always remove the propellers when program-
ming. Program always the motors stop switch on the trans-
mitter. (See transmitter manual)
• Avoid shock and pressure. Check the HoTT Hornet regularly
for damages to the housings and cables, specially after a
crash of the model. Damaged or wet electronic compo-
nents, even if re-dried, should no longer be used!
• Never touch the turning propellers, this can cause serious
injury.
• The propellers must be mounted securely, thrown parts can
cause serious injury.
• Keep long hair, loose clothing such as scarves, loose shirts
or similar well away from the danger zone of the revolving
propeller, they may be withdrawn by the propeller, flying
debris can cause serious injury.
Follow the safety notes of the included mz-12 transmitter.
Note:
After you perceive your model, check if all components are
inside the package and eventual damages.
Remove the battery from the model when transporting or when
not in use.
During transport protect the model and the transmitter from
damages.
The front arms of the copter can be folded for transport.
Care:
Clean the Copter, the battery and the charger only with the suit-
able cleaners. Good is a spirit-free cloth. Never use chemical
cleaners, solvents, petrol, alcohol or similar.
!
P

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Battery charging process
Plug the connection cable to a power source: 110/240V.
The LEDs will be green.
Plug the battery balancer connector into the related charger
socket (3 S).
The LEDs will turn from green (stand by mode) to red (charge
mode).
The LEDs will turn green depending on the charge state of the
single cells. When all the LEDs will turn from red to green, then
the charge is complete.
Disconnect the battery from the charger and then the AC char-
ger cable.
Preparation before use
To start using the transmitter you have to read the HoTT MZ-12
transmitter manual.
Battery installation
Fix the battery in its compartment using some hook-and-loop
tape. Place the battery so that the copter’s center of gravity is in
the middle of the frame.
Binding receiver and transmitter
Transmitter and receiver are already bound by the factory. In
case you wanted to repeat the binding process, go on as fol-
lows:
Switch the transmitter’s RF section off in the “Basic model
settings” menu (see transmitter manual)
Switch on the receiver and put it in binding mode, by press-
ing and holding the binding button (green and red LED on
the receiver are flashing)
Initiate binding in the transmitter’s “Basic model settings”
menu.
If the red LED of the receiver goes out within about 10 sec-
onds and the green LED is illuminated, the binding process
has been completed successfully. Your transmitter/receiver
combination is now ready for operation.
If the red LED is still lit, the "binding“ failed. In this case,
repeat the whole procedure.
The binding process is also described in the transmitter and
receiver manuals.

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Transmitter switches function
The transmitter is already completely set for Copter. The trans-
mitter is configured on mode 2. To change the mode and to neu-
tralize the throttle stick, please read the transmitter manual. To
avoid an unwanted start of the motors, they must be activated
and deactivated by switch 1 on the transmitter. (Motor stop
function)
By switch 3 it is possible to change flight mode.
Attitude mode: The stick movement determinates the Copter
reaction on Roll and Nick. It allows a maximal angle of about 50°
at 100% of stick movement. Mode suggested for beginners.
The stick movements acts directly proportionally to Roll and
Nick.
Rate mode: The stick movement determinates the rate without
angle limit. Aerobatic mode that allows rolls and loopings.
Install the propellers only after having operated all settings on
the transmitter and the Copter, risk of injury!
Auto-flip function through switch S2
The auto-flip function allows you to flip your copter in a very easy
way. It is essential that you control in Attitude mode (function not
allowed in Rate mode). The auto-flip function is controlled
through the channel 6 with the switch S 2. Activate the switch
and within 5 sec move the nick or roll stick to more than 50% of
its course, then the copter makes autonomously a flip in the
selected direction. After the flip it is possible to have some little
position movements (<10°)
LED function head through S6
In the head of the HoTT Hornet there is a LED illumination of the
eyes. The color of the LEDs can be changed through a specifi-
cally programmed control S 6 on the channel 6 of the transmit-
ter.
Read the manual included with the Switch module SXM No.
3971.
On
Off
On
Off
1 3
CAUTION
!

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Initialization of the gyro in the receiver
Once the model has been switched on, the gyro immediately
becomes active but still needs to be initialized. To initialize the
gyro, keep your model still when you switch it on. The calibra-
tion process can only be performed when the receiver is abso-
lutely still.
After 3 seconds in still position you will hear beeps emitted by
all motors. The signal tone can vary depending on the esc model.
These "wiggles" signal that initialization has been successful and
that calibration is complete. Always wait until the calibration pro-
cess has finished before starting to fly the model. The motors
will not start until the calibration is complete.
Installing the propellers
Warning
Risk of injury by rotating propellers in case the motors start.
Always unplug the XT-60 connector to the LiPo battery before
working on the propellers.
Install the propellers as shown in the picture below. Pay atten-
tion to install the proper propeller to each motor. The propeller
rotation sense is written on the propeller (R/L)! The image rep-
resents the copter seen from the top.
Pos. 1 - 1348.6x3 R C-Prop yellow
Pos. 2- 1348.6x3 L C-Prop yellow
Pos. 3 - 1348.6x3 L C-Prop red
!
12
3
Tri L
R+L= Servo direction
Servo 4= Yaw
12
3
Tri R
R+L= Servo direction
Servo 4= Yaw

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Using camera / transmitter
Camera and transmitter are assembled and connected.
Scan the transmitter's frequency in your suitable optional video
goggle or video monitor.
The video signal transmission begins as soon as the battery is
connected. The channel of the transmitter is factory set to chan-
nel 01.
If you want to change the transmitting channel of the transmit-
ter, proceed as follows: Set the micro-switch bar on the trans-
mitter circuit board according to the included manual for the
desired channel.
Video transmitter technical data
No. S8460
Operating voltage DC (V): 7 - 22,2 (3S LiPo)
Width [mm]: 24
Height [mm]: 12
Length [mm]: 35
Frequency GHz: 5,8
Channels: 22
Output mW: 25
Weight [g]: 12
Receiver settings
The transmitter is already completely set for HoTT Hornet 250. If
you want to change however some settings, follows the instruc-
tions content in the receiver manual.
First flight
Switch the transmitter on and plug the battery to prepare the
HoTT Hornet to fly.
Unfold the arms completely and make sure they are in the cor-
rect position.
Choose a free area for your first flight. Select first always the Atti-
tude mode because so the copter is easier to control. Take firstly
confidence with the flight attitude of the HoTT Hornet. Proceed
carefully and responsibly.
The included Voltage module with SBEC offers you the possibility
to set up to three different voltage alarms in steps of 0,1 V. Thus
read the manual of the module and of your HoTT mz-12 trans-
mitter.

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Flight control MODE 2
mz-12
mz-12
Climb - Sink
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe
Turn on its own axe

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mz-12
Roll to the right and left
Forward and backward
mz-12

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Technical Data
ULTRA 2806 2300KV
Brushless Motor (clockwise and counter-clockwise)
Turns/Volt - 2300KV
Diameter - 28mm
Input voltage - 2-4S LiPo
Shaft diameter - 5mm
(clockwise and counter-clockwise)
Speed controller Ultra Control 20A Race
Input voltage - 2-4S LiPo
Dimensions - 22x12x5 mm
Weight - 7 grams
Maximal current - 20A
without BEC
Voltage module+SBEC
Operational voltage - 7,4 to 22,2 V
BEC voltage - 4,5 to 8V
Dimensions - 35x17x7 mm
Weight - 8 grams
Receiver GR-18C
Operating temperature: - 15...+70 °C
Antennas: 2 x wires 145 mm
Total weight approx.: 14 g
Frequency: 2400 ... 2483.5 MHz
Range approx.: 4000 m
Dimensions ca.: 46 x 21 x 14 mm
Modulation: 2.4 GHz FHSS
Current consumption: 70 mA
Operating voltage: (2,5) 3,6 ... 8,4 V
1348.6x3 R+L propellers
Ø/Pitch: 15/7,5 cm
Weight ca.: 4.0 g
Ø/pitch: 6/3 "
Color: red or yellow
Chassis
Axle distance: 25 cm
Chassis height: 9 cm
Folding arms
Weight:395 g
The technical data of the mz-12 transmitter are available in the
transmitter manual.

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Replacement parts
1x 16540.2 Hornet head
1x 16540.2.1 LED eye left/right
1x 16540.3 Landing frame
1x 16540.10.1 Copter arm front left
1x 16540.10.2 Copter arm front right
1x 16540.10.9 Copter arm rear
1x 16540.11 Main chassis plate
1x 16540.12 Upper chassis plate
1x 16540.14.1 Upper left lateral part
1x 16540.14.2 Upper right lateral part
1x 16540.14.3 Lower left lateral part
1x 16540.14.4 Lower right lateral part
4x 16540.19.1 Upper motor mount
6x 16540.19.2 Lower motor mount
8x 16540.20 Set aluminum spacers
5x 16540.30 Set screws/small parts
2x S7049 MOTOR 1
1x S7050 MOTOR 2
3x S3056.1 ESC
1x #4 Camera
1x S8446.10 Camera BEC
1x 48334 OSD cable
1x S8446 VM with SBEC
2x 1348.6X3R red
2x 1349.6X3L yellow
2x 1349.6X3L yellow
Propeller
1x 7905.1 Servo
1x S1019 Receiver GR-18C
1x S8460 FPV module
1x 3971.RGB Illumination set RGB
1x 1587.200.R Velcro cable tie
2x 20X20 Velcro and fleece tape
1x 16540.50 LED illumination rear
1x S1002 mz-12 transmitter
1x 9717.3.D35 LiPo battery
1x S2015 Battery charger

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Firmware update receiver
Updates to the receiver’s firmware are made via the telemetry
socket using a PC running Windows XP, Vista or 7. You will also
need a USB interface, order No. 7168.6, and adapter lead, order
No. 7168.6A or 7168.S, which are available separately.
The programs and files required can be found in the Download
area for the corresponding products at www.graupner.de.
Connect the adapter lead to the USB interface No. 7168.6. The
connectors are reverse polarity protected: note the small cham-
fers on the sides. Never use force – the connectors should
engage easily.
Connect the adapter lead to the receiver's telemetry socket. The
connectors are reverse polarity protected: note the small cham-
fers on the sides. Never use force – the connectors should
engage easily.
Starting the "Slowflyer/Gyro receiver update"
We recommend accessing the "Slowflyer/Gyro receiver update"
program from the "Firmware_Up-grade_grStudio" program.
Click on the "Receiver Downloader" item under "Link" in the left
function menu. (Alternatively, select the "Micro Receiver
Upgrade" under "Menu").
It is also possible to start the associated application program
directly. By double-clicking on the file “micro_gyro_swloader.
exe”. You will find this .exe file in the "Graupner_ PC Software"
folder of the "HoTT_Software VX" package.
A program window will now appear in which you should first set
the "correct" COM port for the USB interface No. 7168.6 in the
selection window.
If you are not sure which port to use, check the COM port in the
"Select Port" window in the "Menu" of the "Firmware_Up-grade_
grStudio" and note down the COM port number for the "Silicon
Labs CP210x USB to UART Bridge" entry – in this case "COM03".
(If you select the wrong port, you will be alerted to this when you
read out the receiver data).

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Click on "File" to load the corresponding firmware file named
"MicroStabi7X_V_XX.bin" from the hard disc ("XX" stands for the
version number).
When the file has loaded, click on start...
... connect the receiver and switch it on.
The progress bar shows that the transfer is running normally.
The receiver LED lights up red and green during this process
and flashes red and green alternately once the transfer is com-
plete.
Please refer to the detailed update instructions for the item in
question in the Download area at www.graupner.de.
Declaration of conformity
16540.RTF HoTT Hornet
Graupner/SJ declares that the product is conform to EU norms.
EN 62479:2010
EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013
EN 301 489-1 V1.9.2; EN 301 489-3 V1.6.1
EN 300 440-1 V1.6.1; EN 300 440-2 V1.4.1
EN 300 328 V1.9.1
The Declarations of conformity of the single components are
included in the manuals of the related components.

20 / 24 16540_jh_V1
Notes on environmental protection
Disposal notes
This symbol on the product, user manual or packaging indicates
that this product must not be disposed of with other household
waste at the end of its life. It must be handed over to the appli-
cable collection point for the recycling of electrical and electronic
equipment.
The materials are recyclable as marked. By recycling, material
reusing or other forms of scrap usage you are making an import-
ant contribution to environmental protection.
Batteries and accumulators must be removed from the device
and disposed of at an appropriate collection point. Please inquire
if necessary from the local authority for the appropriate disposal
site.
Care and maintenance
Notes on care
The product does not need any maintenance, it works so as it
is without any special care. In your own interests protect it from
dust, dirt and moisture.
Warranty
The company Graupner GmbH, Henriettenstrassee 96, 73230
Kirchheim/Teck grants from the date of purchase of this product
for a period of 24 months. The warranty applies only to the
material or operational defects already existing when you pur-
chased the item. Damage due to misuse, wear, overloading,
incorrect accessories or improper handling are excluded from
the guarantee. The legal rights and claims are not affected by
this guarantee. Please check exactly defects before a claim or
send the product, because we have to ask you to pay shipping
costs if the item is free from defects.
The present construction or user manual is for informational pur-
poses only and may be changed without prior notice. The cur-
rent version can be found on the Internet at www.graupner.de on
the relevant product page. In addition, the company Graupner
has no responsibility or liability for any errors or inaccuracies that
may appear in construction or operation manuals.
No liability can be accepted for printing errors.
P