GRAUPNER X44 User manual

Manual
X44
VTOL electric model plane with 4 Brushless motors
9944.100
EN

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Content table
Introduction ........................................................................... 4
Service centre ........................................................................ 4
Intended use ........................................................................ 5
Package content ................................................................... 5
Symbol description ................................................................ 6
Safety notes .......................................................................... 6
Required tools and adhesives (not included) .......................... 8
Suggested accessories (not included) .................................... 8
The model assembly .............................................................. 8
Charging LiPo batteries ...........................................................
Installing the LiPo battery ...................................................... 9
The X 44 FLIGHT CONTROL ................................................. 9
Installing the propellers ....................................................... 10
The first flight ....................................................................... 12
Technical data ..................................................................... 12
Properties ............................................................................ 13
Spare parts (not included) .................................................... 13
Notes on environmental protection ...................................... 14
Care and maintenance ........................................................ 14
Warranty certificate .............................................................. 14
Declaration of conformity ..................................................... 15

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Introduction
Thank you very much for choosing a Graupner X44. This X44
is extremely versatile.
Read this manual carefully to achieve the best results with
your X44 and first of all to control safely your model. If you
experience any trouble during operation, take the instruc-
tions 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 checking periodically for news on our website, www.
graupner.de
This product complies with national and European legal
requirements.
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 in-
formation concerning operation and handling. Keep these
instructions for future reference! Take this into considera-
tion when you pass it on to other future owner.
Service centre
Graupner-Zentralservice
Graupner GmbH
Henriettenstrasse 96
D-73230 Kirchheim / Teck
Servicehotline
(+49) (0)7021/722-130
Mon - Thu
7:30 am - 9:00 am
9:15 am - 4:00 pm
Fri
9:00 am - 1:00 pm
For the sevice centres outside Germany please refere to our
bew site www.graupner.de
Graupner in Internet

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9944.RTF_jh_V1
Intended use
The X44 is an almost ready to fly, remote-controlled airplane
model. More punctual information about X44 can be found in the
Technical data section. The X44 is designed exclusively to be
used as a battery-powered, radio controlled model, any other
use is not allowed. For any improper use no warranty or liability
is accepted.
Read through this entire manual before you attempt to program
or use the X44.
Graupner constantly works on the development of all products;
we reserve the right to change the item, its technology and
equipment.
Target group
The model is not a toy. It is not suitable for children under
14 years. The mounting and operation of the X44 must be
performed by experienced modellers. If you do not have
sufficient knowledge about dealing with radio-controlled
models, please contact an experienced modeller or a model
club.
Package content
1. X 44 Model
2. Rudder with glue contact parts
3. Landing gear
4. Propeller set with propeller adapter
5. Spare propeller set
6. Manual in English, German, French
and Italian

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Symbol description
Always follow the information marked with the CAUTION or WARN-
ING symbol. The signal word WARNING indicates the potential for
serious injury, the signal word CAUTION indicates potential minor
injuries.
The NOTE indicates important information that should alert you
to potential property damage.
Safety notes
General
These safety instructions are intended not only to protect
the product, but also for your own and other people’s safe-
ty. Therefore please read this section very carefully before
using the product!
Do not leave the packaging material lying around, this could
be 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 use safely the receiver,
must not use it without supervision or instruction by a
responsible person.
The operation of radio controlled models must be
learned! If you have never driven such a model, then
start extra carefully and make sure to be familiar with the
reactions of the model to the remote control commands.
Proceed responsibly.
The insurance is mandatory for all kinds of model oper-
ation. If you already have one check out whether the
operation of the model is covered.
Always fly with a safe distance away from people and objects,
never fly low over people or directly towards them!
Never fly the model near power lines, industrial sites, resi-
dential areas, public roads, school yards or playgrounds
etc..
All model flyers must behave in such a way that public safety,
especially other people and property, as well as orderly flying
operations is not jeopardized or disrupted.
Inform passers-by and spectators before the start of the
dangers posed by your model and exhort them to keep a
safe distance.
Also observe the accompanying warnings of battery.

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Controls before the start
Before each use, check proper function. For this purpose
switch on the transmitter and the receiving system. Check
that all controls are in neutral position, function properly and
turn down the correct side.
When flying a model aircraft for the first time, it is advanta-
geous if an experienced helper stands aside in the review
and the first flights.
Propellers powered by a motor represent a constant risk of
injury. Do not touch them with any part of the body! A rapidly
spinning propeller can e.g. cut a finger!
Keep well out of the rotational plane of the propeller! A part
of it or the entire propeller could broke and fly off at high
speed, hitting you or third parties. This can cause serious
injury. Make sure that no object gets in touch with a revolv-
ing propeller!
The blockage of the propeller, for any object must be
excluded.
Check each time before the model itself and everything
attached to it (e.g. propeller, tailplane etc.) is in good condi-
tion and undamaged. The model may be taken in operation
only after removal of all defects.
Radio interference caused by unknown sources can occur
without warning! The model is then uncontrollable and com-
pletely unpredictable! Do not leave the radio control system
unattended, to prevent operation by third parties.
Electric motor should be activated only if there is nothing in
the rotational plane of the propeller. Do not attempt to stop
the spinning propeller. Power the electric motors only with
the propeller installed.
The attitude of the model must always be clearly visible
throughout the flight, to ensure always a safely use and avoid
problems. Familiarize yourself during the flight, if any mal-
function / interference becomes noticeable, the landing must
be initiated immediately for safety reasons. You always give
way to other aircraft. Start and landing strips should be kept
free of people and other obstacles.

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Required tools and adhesives (not included)
Allen key 1,5 mm
Superglue * No.5821
Activator for instant adhesives * No.953.150
Phillips screwdriver *.
* These items are required for any repairs.
Suggested accessories (not included)
mz-12 HoTT No. S1002.DE
LiPo charger ULTRAMAT 14 plus No. 6464
Charge cable XT-60 No. S8386
LiPo battery 20 C 4/1300 14,8 V No. 9944.85
The model assembly
The model is ready to fly after a few adhesive or assembly steps,
the following instructions should be observed carefully so that
safe operation is ensured.
Fixing the rudder (2) to the fuselage (1)
For this purpose on both sides thin the enclosed contact adhe-
sive to the bonding surfaces, let the glue dry for about 1 minute,
then put off the rudder (2) and press firmly.
Inserting the landing gear (3) in the fuselage (1)

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Installing the LiPo battery
First open the canopy. Hold the side to open at the front and pull
upwards
The figure shows the already installed LiPo battery.
CAUTION Risk of injury by rotating propellers, motors can start uncontrol-
lably when the XT-60 connector of the battery is connected.
Always mount propellers only after a complete general check.
The X 44 FLIGHT CONTROL
FLIGHT CONTROL X44 connection cables (left). The optional receiver will be
placed near it (right). The outputs have to be connected in the following
order:
1. Aileron
2. Elevator
3. Motor speed control
4. Rudder Note: the function is obtained by the motor speed
control
5. Control of the motor gondolas and flight mode, heli and aero

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The Flight Control is a highly complex electronic unit, that aero-
dynamically stabilizes the model over several gyros. Both aileron
/ elevator of the rear wing and the speed control of each brush-
less motor are controlled by this unit.
NOTE
Note that the model has to be hold after connecting the XT-60
connector in a stable position on a flat surface until the gyros of
Flight Control have initialized. This process takes a few seconds
and is confirmed by several beeps of the motors. The motor
gondolas run first on a 45 ° position. Only after this operation,
the Flight Control is functionally ready.
Note that the two rear motor gondolas are inclined in the vertical
neutral position approximately 2 ° forward, this is not a defect
but for optimal flight characteristics it is so required.
Also note that all rudder deflections are factory set correctly and
the control surfaces move when LiPo battery is connected, if
you tilt or rotate the model.
Installing the propellers
CAUTION Risk of injury by rotating propellers when starting the motors.
Always unplug the XT-60 connector to the LiPo battery before
working on the propellers.
Tightening the prop adapter (4) with a 1,5 mm Allen key

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The Flight Control is a highly complex electronic unit, that aero-
dynamically stabilizes the model over several gyros. Both aileron
/ elevator of the rear wing and the speed control of each brush-
less motor are controlled by this unit.
NOTE
Note that the model has to be hold after connecting the XT-60
connector in a stable position on a flat surface until the gyros of
Flight Control have initialized. This process takes a few seconds
and is confirmed by several beeps of the motors. The motor
gondolas run first on a 45 ° position. Only after this operation,
the Flight Control is functionally ready.
Note that the two rear motor gondolas are inclined in the vertical
neutral position approximately 2 ° forward, this is not a defect
but for optimal flight characteristics it is so required.
Also note that all rudder deflections are factory set correctly and
the control surfaces move when LiPo battery is connected, if
you tilt or rotate the model.
Installing the propellers
CAUTION Risk of injury by rotating propellers when starting the motors.
Always unplug the XT-60 connector to the LiPo battery before
working on the propellers.
Tightening the prop adapter (4) with a 1,5 mm Allen key
Arrangement of the propellers (A = clockwise rotation) and (B = coun-
ter-clockwise rotation)
Propellers rotation sense
1 = Clockwise motor 2 = Counter-clockwise motor
propeller (.L) propeller (.R)
4 = Counter-clockwise motor 3 = Clockwise motor
propeller (.R) propeller (.L)
CAUTION Risk of injury from flying debris. Loose mounted propellers can
come loose during operation. Always check whether the propel-
lers are mounted properly.
12
3
4

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The centre of gravity
The centre of gravity of the X44 is located 121-131 mm from the
wing leading edge.
If the recommended LiPo battery is used, the centre of gravity
is automatically correctly adjusted. The centre of gravity can be
tested for control by holding the model with two fingers in the
centre of gravity under the wing. The model should be balanced
and levelled. The sketch shows the model with vertical motors
in this case is the centre of gravity at 121 mm measured from
the wing leading edge.
The first flight
Start the model first vertically in heli mode and practice hovering
in low altitude.
Always land against the wind direction with enough battery
capacity. For take-off and landing in the airplane mode an abso-
lutely smooth runway is needed because the X44 wheels are
insufficient on a grass runway. Note that the flight time is essen-
tially dependent on the flight mode used, on the LiPo battery
quality and capacity. A flight time of 3-6 minutes is normally
reached with the X44.
Attention
Note that the XT-60 connectors have to be unplugged after
every use for safety reasons and to preserve the LiPo battery
from deep discharge.
Technical data
Wing area : 7,35 dm²
Rear wing area: 9,15 dm²
Flying weight: 855 g
Total surface area: 16,5 dm²
Length: 860 mm
Wingspan: 695 mm
Wing load: 51,8 g/dm²

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Properties
The Graupner X44 is an innovative VTOL electric model, which
has very particular flight characteristics . VTOL means „Vertical
Take Off and Landing“. The X44 is equipped with 4 brushless
motors which can be rotated of about 90° by a switch on the
transmitter, in this way you can convert before or during the flight
from heli to plane model or vice versa. The X44 flies in heli mode
as an helicopter and can be flown as an acrobatic plane model
in plane mode. The X44 is is equipped as standard with an excel-
lently working FLIGHT CONTROL which stabilizes the model on
each axe in both, plane and heli modes. The X44 is a reproduc-
tion of the marine experimental plane, the construction of the
plane has been many times patented. Please read completely
this manual before using the model.
Spare parts (not included)
No. Description
9944.1 Canopy cover
9944.2 Fuselage
9944.3 Wing
9944.4 Rear wing
9944.5 Landing gear set
9944.7 Motor gondola
9944.10 Rudder
9944.12 Propeller set
9944.29 Propeller adapter
9944.81 Brushless motor KV 1000
9944.82 ESC 12A
9944.83 Servo
9944.85 LiPo battery 4/1300
9944.141 HoTT decals
9944.142 Marine decals
9944.830 FLIGHT CONTROL
9944.833 Motor gondolas servo

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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 impor-
tant 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 interest please protect
the model from dust, dirty and humidity!
Clean the product only with a dry cloth (do not use detergent!)
lightly rub.
Warranty certificate
The 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 oper-
ational defects already existing when you purchased the item.
Damage due to 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
purposes only and may be changed without prior notice. The
current version can be found on the Internet at www.graupner.de
on the relevant product page. In addition, the company Graupner
GmbH has no responsibility or liability for any errors or inaccu-
racies that may appear in construction or operation manuals.
No liability can be accepted for printing errors.
P

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Declaration of conformity
Graupner declares that the product is conform to the CE require-
ments
Brushless motor KV 1000
EN 61000-6-1: 2007; EN 61000-6-3: 2007/A1: 2011
ESC 12 A
EN55014-1: 2006+A1: 2009
EN55014-2: 1997+A2: 2008
Servo
EN 6100-6-3: 2007+A1: 2011
EN 6100-6-1: 2007
FLIGHT CONTROL
EN55022: 2010
EN55024: 2010

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