Nine Eagles SOLO PRO 126 User manual

Operating Instructions
SOLO PRO 126
2.4 GHz
No. NE2520
Operating Instructions
Operating Instructions
Operating Instructions
SOLO PRO 126
2.4 GHz
No. NE2520

2
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

Contents Page
Explanation of specialist terms / Contents 3
Safety Notes 4, 5
Set contents / Specification / Recommended accessories 6
Transmitter description Mode 1 7
Transmitter description Mode 2 8
Transmitter LCD screen / collective pitch throttle setting 9
Receiver outputs / Flybarless Check 10
Charging the flight battery 11
Safety Notes, LiPo batteries 12
Pre-flight preparations 13, 14
Trim adjustments in Mode 1 / Mode 2 15
Controlling the model 16
Important advice / The first few flights 17
Replacement parts 18, 19
Comformity declaration / Disposal of batteries 20
Explanation of specialist terms:
Climb and descent ("Throttle/pitch"): This controls
the model's climb and descent.
Yaw: The model's movement around the vertical axis;
the helicopter rotates to right or left.
Elevator: The model's movement around the lateral
axis,
forward or reverse flight
Roll: The model's movement around the longitudinal
axis,
sideways movement to right or left
Mode 1: Function assignment of the control move-
ments relative to the stick movements.
In this case collective pitch / motor speed (throttle) and
roll are controlled by the right-hand stick; pitch-axis
and tail rotor by the left-hand stick.
Mode 2: Function assignment of the control move-
ments relative to the stick movements.
In this case collective pitch / motor speed (throttle) and
tail rotor are controlled by the left-hand stick; pitch-axis
and roll by the right-hand stick.
Dual Rate: Switchable travel reduction for control mo-
vements.
Binding: Creating the radio link between transmitter and
receiver.
3
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

Be sure to read these Safety Notes before you assemble your mo-
del. Always keep to the procedures and settings recommended in
the instructions.
If you are operating a radio-controlled model aircraft, helicopter, car
or boat for the first time, we recommend that you enlist an expe-
rienced modeller to help you.
Safety Notes
Radio-controlled models are not toys in the usual sense of the term.
Young persons under fourteen years should only be allowed to operate
them under the supervision of an adult.
Building and operating these models requires technical expertise, manu-
al skills, a careful attitude and safety-conscious behaviour.
Errors, negligence and omissions in building or flying these models can
result in serious personal injury and damage to property.
Since the manufacturer and vendor are not in a position to check that
your models are built and operated correctly, all we can do is bring these
hazards expressly to your attention. We deny all further liability.
Helicopter rotors, and all moving parts generally, constitute
a constant injury hazard.
It is essential to avoid touching such parts.
Please bear in mind that motors and speed controllers may
become hot when operating.
It is essential to avoid touching such parts.
Do not stand close to the hazard area around rotating parts when
an electric motor is connected to the flight battery.
You must also take care to keep all other objects away from mo-
ving or rotating parts.
Observe the instructions provided by the battery manufacturer.
Overcharged or incorrectly charged batteries may explode. Take
care to maintain correct polarity.
Ensure the equipment is protected from dust, dirt and moisture conta-
mination. Do not subject the system to excessive heat, cold or vibration.
Use the recommended charger only, and charge the batteries only for the
prescribed period.
Check your equipment for damage at regular intervals, and replace de-
fective components with genuine spare parts.
Do not re-use any devices which have been damaged in a crash or by
water, even when they have dried out again.
Either send the equipment to the robbe Service Department for checking,
or replace the parts in question.
Crash or water damage can result in concealed defects which may lead
to failure in subsequent use.
Use only those components and accessories which we specifically re-
commend.
Do not carry out modifications to the radio control system components
apart from those described in the instructions.
4
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

Operating the model
•Neveryoverortowardsspectatorsorotherpilots,andmaintaina 
safe distance from them at all times.
•Neverendangerpeopleoranimals.
•Neveryorrunthemodelclosetohigh-tensionoverheadcablesor 
residential areas.
•Donotoperateyourmodelinthevicinityofcanallocksoropenwater
ways.
•Donotoperateyourmodelfrompublicroads,motorways,pathsand 
squares etc.; use authorised model flying sites only.
• Never operate the model in stormy weather.
Never “point” the transmitter aerial straight at the model when operating
it. The transmitter signal is at its weakest in this direction. It is always best
to stand with the long side of the aerial angled towards the model.
Insurance
Ground-based models are usually covered by standard personal third-
party insurance policies. In order to fly model aircraft you will need to
extend the cover of your existing policy, or take out specific insurance.
Check your insurance policy and take out new cover where neces-
sary.
Liability Exclusion
robbe Modellsport is unable to ensure that you observe the assembly and
operating instructions, or the conditions and methods used for installing,
operating and maintaining the model components.
For this reason we accept no liability for loss, damage or costs which are
due to the erroneous use and operation of our products, or are connected
with such operation in any way.
Regardless of the legal argument employed, our obligation to pay com-
pensation is limited to the invoice value of those robbe products directly
involved in the event in which the damage occurred, unless otherwise
prescribed by law. This does not apply if the company is deemed to have
unlimited liability according to statutory regulation due to deliberate or
gross negligence.
5
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

Dear customer,
Congratulations on choosing a factory-assem-
bled model helicopter from our range. Many
thanks for placing your trust in us.
The model can be completed and made ready to
fly very quickly. Please read right through these
instructions before attempting to fly the model for
the first time, as this will make it much easier to
operate the model safely.
All directions, such as “right-hand”, are as seen
from the tail of the model, looking forward.
Specification:
Main rotor diameter Ø: approx. 242 mm
Tail rotor diameter Ø: approx. 38 mm
Length: approx. 264 mm
Width: approx. 52 mm
Height: approx. 81 mm
Weight: approx. 57 g
RC functions:
Pitch-axis, roll, collective pitch and throttle
Recommended accessories:
8 x 8005 NiMH AA-cell, 1.2 V / 2500 mAh
1 x F1415 Transmitter charge lead
1 x 8564 POWER PEAK®Uni 7 EQ 230V
Set contents:
1 x Factory-assembled aerobatic helicopter, ready to fly, with 120° swashplate linkage
1 x Trainer canopy with multi-colour paint scheme
1 x High-performance brushless electric motor for main rotor
1 x 10 A brushless speed controller
1 x Factory-fitted electronic control unit with triple-axis gyros
3 x Digital servo, 1.9 g
1 x LiPo battery, 3.7 V / 400 mAh 30 C
1 x Variable battery charger with plug-type mains PSU and adapter lead
1 x J6 2.4 GHz 6-channel computer radio control system, pre-programmed
1 x Pair of replacement rotor blades
1 x Replacement tail rotor
1 x Set linkage arms
1 x Operating and flying instructions
Please be sure to observe the Safety Notes concerning
the handling of Lithium-Ion-Polymer batteries (page 11).
6
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

7
Hover throttle setting
Aerial
3D switch SW (B)
Throttle off switch SW (A)
Pitch-axis trim
Battery display
Stick Pitch-axis / tail rotor
Tail rotor trim
Mode button
END button
LCD screen
Neckstrap
lug
Operating display ** After
changing mode
you must switch
the transmitter off
and then on again,
in order to activate
the new mode.
Gyro gain
switch
Trainer
Switches
Servo travel reduction
Throttle trim
Stick
Collective pitch / motor speed and
roll
On / Off switch
Roll trim
Push-button
Level select
Adjustment
Transmitter description* (Mode 1) - The mode select switch** is located on the back of the transmitter
(*Complete operating instructions for the J6 transmitter can be found in the Download area at www.robbe.com)
Charge socket
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

8
Hover throttle setting
Aerial
3D switch SW (B)
Throttle off switch SW (A)
Throttle trim
Battery display
Stick
Collective pitch / motor speed
and tail rotor
Tail rotor trim
Mode button
END button
LCD screen
Servo travel reduction
Pitch-axis trim
Stick
Pitch-axis / roll
On / Off switch
Roll trim
Adjustment
Neckstrap
lug
Operating display
Gyro gain
switch
Trainer
Switches
** After
changing mode
you must switch
the transmitter off
and then on again,
in order to activate
the new mode.
Transmitter description* (Mode 2) - The mode select switch** is located on the back of the transmitter
(*Complete operating instructions for the J6 transmitter can be found in the Download area at www.robbe.com)
Push-button
Level select
Charge socket
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

9
Transmitter LCD display Collective pitch and throttle adjustment (default settings)
Display
Channel reverse
Collective pitch
channel display
Mode display
Transmitter voltage display
Swashplate type
display
Dual Rate display
Roll / tail rotor channel
display
Throttle / pitch-axis channel display
Gyro
gain display Normal flight Throttle curve normal
Throttle curve 3D
Collective pitch curve normal
Collective pitch curve 3D
3D flying
Gyro gain
Adjustment
25%
Throttle Collective pitch
Throttle Collective pitch
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520
The stated values refer to a collec-
tive pitch setting of 52 and a main
rotor blade setting of 0°.

10
Receiver outputs
Roll servo
Pitch-axis servo
Throttle servo
Collective pitch
servo
Tail rotor motor
Flybarless check before the first flight
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520
Motor speed Motor speed
Tail rotor
Elevator function
Tail rotor
Elevator function
Roll function Roll function

Connect the battery charger to the mains PSU, and plug the PSU into a mains socket. The red
monitor LED on the charger lights up. Connect the battery to the charger, and use "+" or "-" to
set the charge current (high = fast, low = longer battery life). Press the Start button. The monitor
LED flashes. When the charge process is finished, all the LEDs on the charger flash, and you will
hear an audible beep. Disconnect the battery from the charger, then disconnect the mains PSU
from the mains socket.
Charging the transmitter: dry cells cannot be recharged - explosion hazard! The transmitter can
only be charged when the switch is at the "Off" position. The charge current via the transmitter's
charge socket must not exceed 1 A.
Charging the flight battery
11
Safety Notes
The battery must not be left unsupervised during the charge process or be placed on an inflammable surface. Protect from damp. Do not
subject it to direct sunshine, and do not cover the charger.
Do not charge batteries that are hot to the touch. Allow batteries to cool down to ambient temperature. Charge the battery only using the
charger included in the set; do not use any other charger. The charger should only be used to charge the battery included in the set. Not
suitable for charging the transmitter battery!
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

12
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520
LIABILITY EXCLUSION
Since robbe Modellsport is not in a position to monitor the handling of these batteries, we expressly deny all liability and guarantee
claims where the batteries have been incorrectly charged, discharged or handled.
Safety Notes regarding LiPo batteries:
•Donotplacethebatteryinwateroranyotherliquid.
•Neverheatorincineratethepack,orplaceitinamicrowaveoven.
•Avoidshort-circuits,andneverchargethebatterywithreversedpolarity
•Donotsubjectthebatterytopressureorshockloads,andneverdistortorthrowthepack
•Neversolderdirectlytothebattery
•Donotmodifyoropenthebattery
•Batteriesmustonlybechargedwithasuitablecharger;neverconnectthebatterydirectlytoamainspowersupply.
•Neverchargeordischargeabatteryinbrightsunlight,orclosetoaheateroropenre.
•Donotusethebatteryinareassubjecttohighlevelsofstaticelectricity.
•Anyoftheseerrorscanresultindamagetothebattery,explosionorre.
•Keepthebatteryoutofthereachofchildren
•Ifelectrolyteshouldescape,donotexposeittore,asthematerialishighlyinammableandmayignite.
•Donotallowuidelectrolytetocomeintocontactwitheyes.Ifthisshouldhappen,ushwithcopiousamountsofwaterand
contact a doctor without delay.
•Theuidelectrolytecanalsoberemovedfromclothingandotherobjectsbyrinsingwithcopiousamountsofwater.

Flight preparation
Open the battery compartment and insert the dry or rechargeable cells. Close
the battery compartment. Move all the switches to the forward position, then
switch the transmitter on (Fig. 1). If switch "A" or "B" is in the "ON" position, the
screen will flash, and you will hear a "beep" to warn you. The transmitter cannot
be switched off with the switches in these positions.
Move the collective pitch / throttle stick and trim to their lowest position. Other-
wise the motors will not start.
Fit the charged LiPo flight battery into the support frame on the helicopter, and
connect the LiPo flight battery (Fig. 2). Take care not to touch the throttle control.
Do not move the model for a minimum of three seconds, otherwise the initialisa-
tion process will not take place.
Repeat this procedure every time you wish to fly the model.
The "3D" aerobatic switch SW(B) should only be operated by experienced pilots.
Moving the switch to the "ON" position sets a system rotational speed suitable
for aerobatics.
The hover rotor speed can be adjusted using the "Hover throttle setting" rotary
knob.
Note: the 2.4 GHz transmitter and receiver are supplied already bound at the
factory. It will only be necessary to bind the system again after a repair, or if you
replace a component.
13
Fig. 2
Fig. 1
A
W
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

Check the correct position of the swashplate before the first flight. The swashplate must sit exactly horizontal when viewed from the side
and front of the model. Position the model on a totally flat surface. Now move the throttle stick to the lowest throttle position, and switch
the transmitter on. Switch the transmitter on. Check that the pitch-axis, roll and tail rotor trim are all in the neutral positions. Now connect
the flight battery.
Remove the canopy and check the swashplate alignment. If it is not horizontal, you must correct it manually. Remove the flight battery
from the model, and turn the transmitter off. Disconnect the appropriate ball-link. You can adjust the pushrod length by turning the ball-link
clockwise or anti-clockwise. Re-connect the ball-link. Repeat this step until the swashplate is correctly positioned on the model.
Fine trimming is carried out at the transmitter during test-flying.
Check the main rotor blade attachment. The blades must be able to swivel smoothly, without jamming. They should not be too loose,
otherwise vibration may occur.
We recommend that you run-in the motors for the period of one battery charge: run the motor at a reasonable speed (around 1/4 throttle);
the model must not take off. You can carry out the first flight after recharging the flight battery.
Flight preparation
14
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

Trim settings Mode 1
Throttle trim:
If the rotor starts to move without the
throttle stick being touched, or does not
respond to stick movements, you must
adjust the throttle trim until the rotor is
stationary.
Tail rotor trim:
If the model's nose turns to right or left
when it lifts off, adjust the tail rotor trim
buttons to correct the rotation until the
model maintains a stable heading.
Pitch-axis trim:
If the model flies forward or back when
it lifts off, adjust the pitch-axis trim until
it hovers over one point.
Roll trim:
If the model moves bodily to left or right
when it lifts off, adjust the roll trim until it
remains in a stable hover.
15
Trim settings Mode 2
Throttle trim:
If the rotor starts to move without the
throttle stick being touched, or does not
respond to stick movements, you must
adjust the throttle trim until the rotor is
stationary.
Tail rotor trim:
If the model's nose turns to right or left
when it lifts off, adjust the tail rotor trim
buttons to correct the rotation until the
model maintains a stable heading.
Pitch-axis trim:
If the model flies forward or back when
it lifts off, adjust the pitch-axis trim until
it hovers over one point.
Roll trim:
If the model moves bodily to left or right
when it lifts off, adjust the roll trim until it
remains in a stable hover.
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

16
Controlling the model in Mode 1 Controlling the model in Mode 2
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520
Lift off:
Yaw left:
Pitch forward:
Roll right:
Lift off:
Yaw left:
Pitch forward:
Roll right:
Landing:
Yaw right:
Pitch back:
Roll left:
Landing:
Yaw right:
Pitch back:
Roll left:

17
Ideally the first flight should take place in a large indoor space devoid
of obstructions. If you have to fly the model in the open air, wait for a
day with totally flat calm conditions. We recommend that you ask
an experienced helicopter pilot to help you during the first few flights.
Once the model is properly trimmed, you can practise hovering,
and carry out manoeuvres such as circles, squares, rectangles
and figures-of-eight. Initially it is always best to stand about two
metres away from the model, behind or at right-angles to it; this
avoids giving incorrect control commands. You can fly a square
pattern by alternating the direction of flight: away from the pilot, to
the pilot's right, and then towards the pilot again.
Important: Check the state of charge of the transmitter batte-
ries before each flight, and recharge them when necessary. It
is essential to charge the flight battery before flying the model.
Tip: when the helicopter is flying with the nose pointing to-
wards you, the controls are reversed (apart from the throttle
control).
Important Notes
Take-off: use the 3D switch for aerobatics only. To take off, slow-
ly and steadily increase rotor speed until the model is hovering
approximately at eye-level. At the same time adjust the trims until
the helicopter is flying stably and hovering over one point. At low
altitude (approx. 10 - 15 cm above the ground) the model cannot
be trimmed accurately due to the turbulence generated by the
rotor.
Landing: slowly and steadily reduce the throttle setting until the
model descends and touches down. Never reduce the throttle
setting abruptly.
After the landing disconnect the flight battery from the receiver,
and only then switch the transmitter off.
Caution: Stopping (obstructing) the rotor blades when they are
turning can cause serious damage to the mechanical system,
and may even result in a fire. If the propeller is forcibly stopped,
immediately move the throttle stick back to Idle!
Note regarding the flight battery: as soon as you notice a red-
uction in motor power, land immediately and disconnect the bat-
tery. Never continue flying until the battery is flat, as this causes
a deep-discharge condition which results in permanent damage.
Allow the battery to cool down before recharging it.
Replacing the rotor blades: If a rotor blade is damaged, replace
it immediately. When fitting the new rotor blade, tighten the retai-
ning screw just to the point where the blade still swivels smoothly.
Pilot Pilot Pilot
The first few flights
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520

18
Replacement parts list - SOLO PRO 126 2.4 GHz No. NE2520
1
2
1
34
5
6
6
A
A
A
A
A
A
A
A
A
7
8
9
10
11
12
11
13
14
15
16
16
13
17
18
19
20
21
27
22
25
23
24
26
A
A
A

19
Replacement parts list - SOLO PRO 126 2.4 GHz No. NE2520
Replacement parts list, SOLO PRO 126
No. Order No. Description
01 NE252012 Rotor blade shafts
02 NE252001 Rotor head
03 NE252002 Rubber grommets, pack of 6
04 NE252006 Flange, pack of 6
05 NE252013 Rotor blade grip
06 NE252003 Rotor blades
07 NE250905 Pushrod set
08 NE252007 Main rotor shaft
09 NE252014 Swashplate
10 NE252015 Collet set
11 NE252022 Main motor
12 NE252016 Pushrod set
13 NE252017 Main frame
14 NE252004 Main gearwheel
15 NE252024 Receiver
16 NE252009 Ballrace set
17 NE252021 Servo / canopy mounting
18 NE252019 Servo mount
19 NE252020 Servo output arm
20 NE251328 Servo
21 NE252010 Ball-end bolt set
22 NE252005 Canopy
23 NE250912 Tail rotor
24 NE252023 Tail rotor and motor
25 NE252018 Landing gear
26 NE252025 LiPo battery, 3.7 V / 400 mAh 30C
27 NE252026 Brushless speed controller,10 A
A NE252011 Screw set
NE250921 Charger adapter lead
NE250230 Mains PSU and battery charger
Upgrade components:
NE252027 Rotor head, metal
NE252028 Rotor blade grip, metal
NE252029 Swashplate, metal
When replacing components it is very important to use the correct type
of cross-point screwdriver, and to tighten the screws with great care. Do
not use thread-lock fluid!

robbe Modellsport GmbH & Co.KG
Metzloserstraße 38 · D-36355 Grebenhain
Technical hotline: [phone] / 87-777 · [e-mail]
Commercial register: Gießen Regional Court HRA 2722
Partner with personal liability:
robbe Modellsport Beteiligungs GmbH Gießen / HRB 5793 Managing Director: E. Dörr
Errors and technical modifications reserved Copyright robbe-Modellsport 2012
Duplication and copying of the text, in whole or in part, is only permitted with the prior written approval of robbe-Modellsport GmbH & Co. KG
This symbol means that you should dispose of electrical
and electronic equipment separately from the household
waste when it reaches the end of its useful life. Take your
unwanted equipment to your local council collection point or
recycling centre. This requirement applies to member coun-
tries of the European Union as well as other non-European
countries with a separate waste collection system.
Disposal of batteries
Batteries must not be discarded as domestic refuse. To
protect the environment, always return exhausted or de-
fective cells to your local recycling centre. These include
retail sales outlets for batteries, and communal toxic waste
disposal centres. Cover any bare wires with insulating tape
in order to avoid short-circuits.
robbe Modellsport GmbH & Co. KG hereby declares that
this device conforms to the fundamental requirements and
other relevant regulations of the corresponding EC Direc-
tive. Under www.robbe.com, you will find the original Con-
formity Declaration by clicking on the Logo button "Conform"
shown together with the appropriate device description.
20
Operating instructions - SOLO PRO 126 2.4 GHz No. NE2520