Roban Bell AH-1W Compactor User manual

Bell AH-1W™
Compactor
CompactorCompactor
Compactor
Manual
CCPM SCALE RC HELICOPTER

Copyright@2013 - Roban Limited – All rights reserved
Compactor 700 Manual – Bell AH-1W™
Release 1.0 - April 2013
Bell, emblems, lo os, and body desi ns are trademarks of Textron Innovations
Inc. and are used under license by Roban Ltd.
Roban Limited
Dryriver Industrial Zone, Venture Cross Rd.
Jiaolian, Wanjian City District of Don uan,
523046 Don uan County (GD) - PRC

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SPECIFICATIO S
Body len th: 1670mm
Len th incl. rotors: 1850mm
Width: 450mm
Hei ht: 480mm
Main rotor diameter: 1560mm
Main blade len th: 700mm
Tail rotor diameter: 280mm
Tail blade len th: 105mm
Main shaft diameter: 12mm
Tail shaft diameter: 5mm
Spindle diameter: 8mm
Battery compartment: 120x60x180mm
Motor:* 1x 750MX 450KV brushless outrunner, 12S capable
Speed controller:* 1x 120A brushless, 12S capable
Servo:* 3x metal ear cyclic, 1x 9 metal ear tail servo
Battery:* 44.4V 5000mAh 35C+
Fli ht time: 5 minutes
Takeoff wei ht: 9000
Fli ht Stabilization:* 3 axis flybarless yro
Radio Control:* min. 6 channel with pitch and throttle curves
*) Optionally available equipment
The Compactor is a hi h performance radio controlled scale helicopter.
Our oal was to create a simple, hi h performance helicopter, with a minimum of mechanical components and simple maintenance.
Please read this user manual carefully, it contains instructions for the correct assembly of the model.
Please refer to the web site www.robanmodel.com for updates and other important information.
Thank you for your purchase, and have a reat time with your Compactor!
Roban Limited

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IMPORTA T OTES
*This radio controlled helicopter is not a toy.
*This radio controlled helicopter can be very dan erous.
*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 followin 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 lasses and take appropriate safety precautions.
*A radio controlled helicopter must only be used in open spaces without obstacles, and far enou h 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, causin loss of control of the model, makin it very
dan erous.
*Lack of care with assembly or maintenance can result in an unreliable and dan erous model.
*Neither Roban Limited nor its a ents have any control over the assembly, maintenance and use of this product. Therefore, no
responsibility can be traced back to the manufacturer. You hereby a ree to release Roban Limited from any responsibility or
liability arisin from the use of this product.
SAFETY GUIDELI ES
*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 fli ht.
*The blades of the model rotate at a very hi h speed; be aware of the dan er they pose and the dama e they may cause.
*Never fly in the vicinity of other people.
OTES 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. Chan in the order of assembly may result in additional or
unnecessary steps.
Use thread lockers and retainin compounds as indicated. In eneral, each bolt or screw that en a es with a metal part
requires thread lock.
Factory pre-assembled components have been assembled with all the required thread lock and lubricants,
and have passed quality control. It is not necessary to disassemble and re-assemble them.
We do not recommend the use of thin cyanoacrylate lue for surface mount of painted parts. The fumes of the curin lue leave
white stains on the clear coat, which are hard to remove.

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1 – Tail gearbox 2 – Tail t be short 3 – Tail shaft short 4 – Ball links
5 – Tail boom holder 6 – Main frame assy 7 – Motor p lley 8 – Tail rod short
9 – Tail rotor assy 10 – Main rotor assy 11 – Tail servo holder 12 – Tail shaft bearings
13 – Tail servo frame 14 – Tail sero rod g ides
15 – Main rotor blades 16 – Tail shaft long
17 – Tail t be long
18 – Tail rod long 19 – Tail boom s pports
20 – Blade linkages
21 – Tail blades 2pcs
22 – Landing gear 1 set 23 – Tail str t 24 – Weapon winglets 2pcs
25 – Wing tip 2 pcs 26 – Holder 2pcs 27 – Missile stations 2pcs 28 – Missile pods 2pcs
29 – Anti IR 2pcs 30 – Tail wings 31 – Gatling g n 2pcs
32 – Cockpit mainframe 1pc
33 – Instr ment panel 1pc 34 – Pitch stick 1pc 35 – Control stick 1pc 36 – Target monitor 1pc
CO TE TS:

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37 – Control stick 1pc 38 – R dder pedals 1pc 39 – Scale part 1pcs 40 – Chairs 2pcs
41 – Screw A2x24 4pcs 42 – Screw A2x14 4pcs 43 – Screw M3x14 2pcs 44 – Screw A3x16 4pcs
45 – Washer M3 6pcs 46 – Washer M4 4pcs 47 – L Brackets 4pcs 48 – Screw M10x4 4pcs
49 – N t M3x10 6pcs 50 – Self locking N t M3 51 – Ball links 4pcs 52 – Self lock N t M2 4pcs
53 – Self lock n t M4 1pc 54 – Wooden washer 6pc
55 – Screw A1.7x7 6pcs 56 – Scale part A 1pc
57 – Scale part B 1pcs 58 – Scale part C 1pc 59 – Scale part D 1pc 60 – Scale part E 1pc
61 – Scale part F 2pcs 62 – Scale part G 2pcs 63 – Scale part H 1pc 64 – Scale part I 2pcs
65 – Carbon rod 4x115 1pc 66 – Scale part D 1pc 67 – Scale part D 1pc
68 – LED wire red 1pc
69 – Led wire green 1pc 70 – LED wire red 1pc 71 – 12mm light cap 1pc 72 – LED controller 1pc
73 – Decal set 1pc

ADDITIO AL COMPO E TS REQUIRED
*Electric Motor:
10S-12S – 400-600Kv,
pinion shaft diameter 6mm
*Speed controller:
minimum 120A to be safe
*Batteries: 10-12S 4000-5000mAh
*1 flybarless 3 axis control unit, suitable for scale flyin
*Radio power system
*3 cyclic servos
*1 tail rotor servo
*6 channel radio control system on 2.4 GHz
TOOLS, LUBRICA TS, ADHESIVES
*Generic pliers
*Hexa onal driver, size 1.5, 2, 2.5, 3, 4mm
*4mm T-Wrench
*5.5mm Socket wrench (for M3 nuts)
*8mm Hex fork wrench (for M5 nuts)
*Medium threadlocker (e . Loctite 243)
*Stron retainin compound (e . Loctite 648)
*Spray lubricant (e . Try-Flow Oil)
*Synthetic rease (e . Tri-Flow Synthetic Grease)
*Cyanoacrylate adhesive
*Pitch Gau e (for set-up)
*Solderin equipment (for motor wirin )
Inside the main box there are:
Inside the main box:
Ba 1: Scale Decals
Box 2: Mechanics
Box 3: Scale Cockpit
Box 4: Boom, Blades, Tail blades, Rods

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Assembly Scale Fuselage
Prior to installin the mechanics into the fusela e, please prepare the fusela e accordin to the followin steps.
installation into the fusela e most of the helicopter mechanic become inaccessible.
Remove the hatch as shown.
Secure the landin ear usin screws (41) as shown.
Install li ht (68) in win end with lue.
Install the holder (26) with screws (42) onto the win (24).
Install the tail landin ear (22) as shown.
Install li ht and housin (70, 71) as shonw usin lue.
Install li ht (69) in win end with lue.
Install the win tip to the win usin epoxy lue.

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Glue the rocket pod on with epoxy lue.
Glue the Anti-IR unit on with epoxy lue
Glue the tail distancer in with epoxy lue
Glue the rocket launcher on with epoxy lue.
Install the win lets onto the main fusela e.

Assembly Mechanics
The mechanics are almost entirely preassembled and split up into four sections: rotorhead, main frame, tail frame and tail tube.
Prior to the installation into the scale fusela e, the mechanics have to be entirely assembled, electronic components installed,
adjusted and tested. After installation into the fusela e most of the helicopter mechanic become inaccessible.
Step 1 – Rotorhead
Slide the rotorhead onto the main shaft. Use screw (70-
00006) and nylon nut (70-00007) to secure the rotorhead
onto the main shaft. Use two screws (70-00008) to
additionally clamp up the rotor hub onto the shaft as shown.
Make sure the distance between the ball link and the L lever
is equally at 24mm. Finally snap on the ball links (70-00025)
on the swashplate’s upper disc uni-links (70-00030).
Step 2 – Tail boom
First of all install the center bearin s (70-00100) with the
holders (02-02006) into the tail boom (70-00095). Distribute
the bearin s evenly in the tail boom. It is recommended to
apply a bit of lubrificant onto the tubes inner surface,
elsewise the bearin is likely to et stuck before the correct
position is reached. Then install the center support rin
(600UH1-007), the servo rod uides (70-00040) and the servo
two tail servo holders (70-00098). Install the tail torque tube
(70-00096) into the tail tube.
Then insert the tail boom into the tail boom holders (70-
00093, 70-00094). Lock the tube in place with screw M3x8
(70-00086) via the clamp up and additionally with screw
M3x6 (70-00053) as shown. Install the carbon support beams
(70-00104-70-00106) on the main frame and the tail boom
tail boom clamp (600UH1-007).

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Step 3 – Tail Servo Installation
First of all, mount the holder frame (70-00097) onto the
boom holders (70-00098) usin screw M3x8. Then mount the
tail servo of your choice into the tail frame usin screws
M3x10, washers and nylon nuts as shown. Install the servo
horn and the supplied uniball. Then slide the tail rotor control
rod (70-00103) into the four uides. Install the ball link (70-)
on both ends of the tail rotor control rod. Distribute the
uides evenly alon the tail boom. Then install the tail rotor
frame onto the tail boom. Lock it with the three screws as
shown, but do not use thread lock yet, as it has ot to be
uninstalled a ain. Snap the servo control rod onto the ball
link.
Step 4 – Cyclic Servo Installation
Install the three cyclic servos onto the servo tray as shown.
Dependin on your servos, you may have to use washers to
adjust the servo to the proper installation hei ht. It is stron ly
recommended to use metal servo horns and only metal
eared servos. The multi blade rotor head can feedback
forces that may lead to failure of plastic components.
After the servos are installed, you will have to adjust the
linka e rods len th’s accordin to the schematics below. The
distances are uniball center to uniball center:
1=81mm 2=112mm 3=81mm

Step 5 – Adjust swashplate linkages
The linka es from the L-Levers to the swash plate have to be
set at correct len th. Distances are uniball center to uniball
center: 1=35mm
Step 6 – Motor and Belt installation
In order to install the motor, you must first disassemble one
of the side frames in order to have access to the mountin
screws and access to the belt drive. Hence one side frames
fasteners are not ti htened upon delivery. Before installin
the pinion pulley on the motor, you have to add a flat to the
motor shaft in order to secure the pulley with the set screws
(70-).
Mount the motor as shown usin washers and screws onto
the motor mount (70-00066). Make sure to have the motor
wire outlet facin into the ri ht direction for connectin them
to the ESC. Then insert the belt pulley into the belt and slide it
onto the motor shaft. Before you ti hten the set screws,
make sure that the pinion is installed leveled with the belt
pulley, the distance (Fig. 1) is at 24.5mm.
Use both tensionin screws to tension the belt drive. The belt
mustn’t be tensioned too ti ht to avoid unnecessary wear.
After installation of the motor, reassemble the side frames.
1

Step 7 – Electrical Wiring and Setup
The mechanics have to be fully electrically setup and adjusted
prior to installation into the fusela e. As the use of a 12S
(44.4V) setup is necessary, we stron ly recommend to run the
control equipment on a separate 2S Lipo battery and BEC for
security reasons.
In scale confi urations main battery power wires may be
lon er than on comparable 3D helicopter equipment. As HV
ESCs do not necessarily have the main battery round wire
connected to the servo si nal round wire, it may be
necessary to create an additional connection between the
BEC 2S batteries round wire and the 12S main battery
round wire. Certain confi urations without this round
interconnection have led to a loss of si nal at the ESC from
the receiver due to EMC effects.
The swash plate is a re ular 120de CCPM type, please take
your time to adjust all servo travels, center positions – the
entire 3 axis yro – servo – radio setup prior to the
installation into the fusela e.
A 450KV motor such as the Ali n 750MX run at app. 80%
throttle (hover) shows satisfyin results. As space is limited,
please make sure you check the dimensions if you intend to
use other brand motors.
In re ards to the yro setup, we recommend to start with
standard values of the 3 axis yro. Make sure you install the
yro in a way that provides easy access for connectin your
pro rammin equipment. As the scale fusela e adds
additional inertia to each axis, yros are normally to be set at
a lower yro ain. All in all, a ri id yro response does ruin the
scale look in fli ht.
Before operatin the model check the followin points:
-The direction of servo rotation (includin the throttle
function) and travels.
-The direction of effect of the yro, and the transmitter mixer
functions you have pro rammed.
-Collective pitch travel (linear travel -2/-3° to +9/+10°)
ATTE TIO !
When using the a pitch gauge to adjust correct CP travels,
make sure that the gauge lines up with the flat surface of
the rotor blade. Many pitch gauges do not show the correct
angle when snapped onto unsymmetric rotor blades !
The main rotor blades are not symmetrical. Do not try to fly
inverted.
- It is permissible to reduce servo travels, but not below 60%
(in this case adjust the mechanical linka e); travels should be
primarily symmetrical.
- Apply collective pitch min. / collective pitch max. and full roll
and pitch-axis commands simultaneously in
all directions; rotate the rotor head at the same time, and
check that at the extremes of travel no part of the rotor
head is obstructed.
- The auto-rotation switch must be assi ned, and within easy
reach!
- When auto-rotation is selected: throttle position to off, all
directions of control and travels as in normal
fli ht, tail rotor to 0° = fixed value.
-The first few batteries should be flown with the model close
to the round, i.e. no more than about 1 m
altitude, until you are confident that there are no defects or
errors, and that everythin is workin faultlessly:
- Use your ears critically (!), listenin for unusual sounds and
vibration, and seek out the problem if you are in any doubt at
all!
- Don’t listen to anyone standin close by if they try to hurry
you into flyin the model.
- Avoid hoverin outside round effect (hover altitude with a
model: approx. 1m, or half the rotor disc diameter):
- Hoverin requires very hi h power, and you are completely
dependent on the motor: in contrast to most full-size
helicopters, model helicopters have only one (!) power plant.

Step 8 – Installation of mechanics
Mount the four L-brackets (60UH1-003) onto both sides of
the main frame as shown. Make sure they are properly
ali ned before you fasten the screws.
Unmount the entire tail rotor frame from the tail box a ain.
Install the mechanics by slidin them into the fusela e as
shown.
Install the tail boom. Mount the tail boom onto the front fusela e usin screws
(55) and wooden washers (54).

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Install the rod ends on the lever trian le.
Use the holes in the fusela e to ti hten the tail frame screws.
Use screws (43) and washers (45) to secure the mechanic.
Install the short tail boom in the tail frame.
Install the washer (66) as shown.
Install EVA distancers (67) as shown usin lue.

Close the tail hatch with the screws.
Slide the tail win s onto the rods and ti hten screws.
Glue lever 39 in as shown.
Glue pedals (38) in as shown.
Install the carbon rod (65) as shown.
Install the un (31) with Nyloc Nut M4 (53) as shown.
Glue lever 35 in as shown.
Glue pitch lever (34) in as shown.

Glue lever (35) in as shown.
Glue instrument panel (33) in as shown.
Glue lever 39 in as shown.
Glue pedals (38) in as shown.
Glue instrument panel (36) in as shown.
Glue seats (40) in as shown.
Then install the cockpit into the canopy, use lue
Install the canopy on the helicopter as shown.

Please install the scale parts as depicted using epoxy glue!
Finally connect the LED controller to the LEDs you installed.

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Step 10 - Battery installation
The battery compartment consists of a convenient and secure wooden structure. Open the hatch first, then secure the batteries in
position by usin velcros as shown.
Step 11 - ow it is time to fly
For the first few circuits: startin from round effect, accelerate to a moderate speed in level fli ht, and only then initiate a climb,
always keep the model flyin at a brisk forward speed; on the landin approach always descend towards the landin area at a steady
an le (around 45°) directly into wind, and don’t brin the model to a halt until it is in round effect a ain. This way you can save your
model throu h autorotation. If one particular technical fault keeps recurrin in your model, replacin the component concerned will
not solve the problem unless you chan e some other aspect of the operatin conditions. It is as hard to fly nice and smooth scale
maneuvers as flyin F3C or exact 3D fi ures.
And one final request:
Please be realistic when assessin your pilotin skills, because a scale helicopter is heavy and hence much less a ile in response than
any 3D helicopter. Keep this comparison in mind: if you can’t swim and you dive into deep water, the chances are that you will
drown.

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Appendix A – Explosion Drawings