Compass Atom 6HV User manual

Always use proper safety procedures when using RC aircraft

Academy of Model Aeronautics
5151 East Memorial Drive
Muncie, IN47302
Introduction
Warning
Warranty
AMA Information
The warranty covers defects in material or workmanship or missing components to the original purchaser for 30 days from
the date of purchase. Compass Model Ltd. will replace or repair, at our discretion, the defective or missing component.
Defective components must be returned to our Distributor prior to replacement.
Any part, which has been improperly installed, abused, crash damaged or altered by unauthorized agencies is not covered.
Under no circumstances will the buyer be entitled to consequential or incidental damages. The components used in this kit
are made from special materials designed for special applications and design strengths. We recommend that all replacement
parts be original parts manufactured by Compass Model Ltd. to ensure proper and safe operation of your model. Any part
used which was manufactured by any firm other than Compass Model Ltd. VOIDS all warranties of this product by Compass
Model Ltd.
We strongly encourage all prospective and current R/C aircraft pilots to join the Academy of Model Aeronautics. The AMA is
a non-profit organization that provides services to model aircraft pilots. As an AMA member, you will receive a monthly
magazine entitled Model Aviation, as well as liability insurance plan to cover against possible accident or injury. All AMA
charter aircraft clubs require individuals to hold a current AMA sporting license prior to operation of their models. For
further information, you can contact the AMA at:
Congratulations on your purchase of the Compass Model Atom 6HV Electric Powered Helicopter. This model has been
designed using the latest in state-of-the-art design technology. To achieve the best performance and reliability from this
model, please read through these instructions carefully so you become familiar with the contents of this kit before assembly.
Warranty Procedures
Mail all warranty information within 15 days of original purchase date. If service is required, send the component in
question (if not missing) together with a photocopy of your bill of sale and an accurate description of the problem and part.
Ship components fully insured and prepaid. Compass Model Ltd. is not responsible for any shipping damages. We will, at
our discretion, notify you of any costs involved, or ship it COD. You are required to pay all postage, shipping and insurance
charges.
R/C Helicopter Safety
A model helicopter must be built exactly in accordance with the assembly instructions. Compass Model Ltd. has spent much
time and efforts refining this product to make it reliable in operation and easy to build. Vibration and stress levels are high and
all fasteners and attachments must be secure for safe operation. Safe operation is the responsibility of the builder/flyer and
starts with careful construction and continues with selection and installation of reliable radio equipment and motor/engine.
The need for safety is nowhere greater than at the flying field. A number of guidelines for safe flight have been developed by
experienced flyers and are set down here. It is urged that they be read, understood and followed.
each country has its own security application which cannot be laid down here so prior to any flight request the
rules to apply in your country/Flying field.
Atom 6HV Limitations
Atom 6HV Max. rotor head rpm: 2000 U/min
Atom 6HV Max. collective pitch range: +/- 12°
Attention:
Attention:
The radio-controlled model helicopter contained in this kit is not a toy, but a sophisticated piece of equipment. This product
is not recommended for use by children. Radio-controlled models such as this are capable of causing both property damage
and/or bodily harm to both the operator/assembler and/or spectator if not properly assembled and operated. Compass
Model Ltd. assumes no liability for damage that could occur from the assembly and/or use/misuse of this product. Although
the Atom 6HV is powered by a quiet, smooth-running electric motor, it should be assembled and operated with the same
care as its larger glow engine counterparts. When operating your Atom 6HV, please exercise caution and safety.

• Fly only at approved flying fields and obey field regulations.
• Follow frequency control procedures. Interference can be dangerous to all.
• Obtain assistance from experienced pilots.
• The Guidance provided by experienced pilots is valuable and sometimes necessary.
• Know your radio. Check all transmitter functions before each flight.
• Be aware that rotating blades are very dangerous and can cause serious injury.
• Never fly near or above spectators or other modelers.
• Do not fly r/c helicopter models near buildings, high voltage cables, trees or other obstacles.
• If a beginner, get help trimming the model first and flight training later.
• Don’t “track” the main blades by holding the tail boom. This is a temptation to builders who cannot hover yet and is very dangerous.
• Follow all recommended maintenance procedures for model, radio and motor.
• Only turn off the radio after the brushless motor is disconnected.
Length: up to 620mm
Necessary Items
Bearing Retainer
6 channel or up radio and receiver.
3 standard servos.
1 gyro with rudder servo.
1x LiPo Battery 12S
or 2 packs 6S 2500~3300mah.
1x HV/BEC 12S.
Standard Servos
Grease
Needle Nose Pliers Screw Driver
Hex Wrench Set
(1.5mm,2mm,2.5mm,3mm) Cutter Knife
Main Rotor
Pitch Gauge Ball Link Sizing Tool Ball Plier
When first opening your Atom kit, you will notice that all of the parts are packaged and numbered to coordinate with the
assembly step numbers of this instruction manual. All small hardware (nuts, bolts, washers, etc.) for each step are packaged
separately within the main parts bags. When beginning a section, you will need to open only the bag with the corresponding
number to the section you are about to start. It is suggested that you place all of the hardware in an open container (e.g., servo
case) during assembly so as not to lose any of the small parts. It may also be helpful to familiarize yourself with the various
sizes of screws, bolts, nuts, etc., as illustrated in the appropriate assembly section before you begin assembly. In most cases, at
the end of each assembly section, there should be no parts remaining. Great care has been taken in filling the bags with the
correct quantity of parts and hardware for each section. However, occasional mistakes happen. In the event that you find a
parts shortage or are in need of technical assistance, please contact your local Compass Model parts dealer.
Pre-assembly Information
In order to operate this model, you need to purchase the following items not kit-included.
Swash Plate Tool
Guidelines for Safe R/C Helicopter Flight
Threadlock
BEC

In The Box
This model is packed according to assembling steps. Do not open all the bags at one time.
Open only one bag for each step of assemply when building.
Use AB Glue
A
B
Use Blue Threadlock
Use Grease
Mishandling due to failure to follow these instructions may result in damage, personal injury or danger.
Symbols & Assembling
* Always apply blue Threadlock when fixing Bolts on Metal parts.
* Always apply green retainer where bearings has to be fit into metal parts.
* Do not over-tighten self tapping screws into plastic parts or you will strip the threads!
G
Use Bearing Retainer
Step 1 Step 2 Step 3
Tail Set Step 4 Step 5
Rotor Set Frame Set Long Item
Step 7 70A HV ESC Step 10

010 20 30 40
1Servo
2.5mm Washer X 16
M2.5x10 Self Tapping
Bolt X 16
Plastic Spacer x 4
Use AB Glue
010 20 30 40
2Landing Gear
Landing Gear Skid
A
B
M3 x10 Self Tapping
Bolt X 4
M3x5 Set Screw X 4
A
B
A
B
Tip: Do not over tighten the four 3 x 5mm
set screws as it can damage the landing
struts.
The Servo installation is done without
the supplied Servo Rubbers.
2 5mm Washer.
Servo
M2 5X10 Self Tapping Bolt.
Skid Cap
Struts
M3x5 Set Screw
M3x10 Self Taping Bolt
This Servo is installed in between
the 2 frames. The Self Tapping Bolts
are screwed from the inside.
M2.5x10 Self Tapping Bolt
Servo
2.5mm Washer
M2.5x10 Self Tapping Bolt
Servo Spacer

010 20 30 40
3Boom & Tail Rotor
M2.5x8 Self Tapping Bolt
Slide the Tail Boom through the
Tail Boom Mount. Twist the Tail
Belt 90° to the right before
inserting it to the Idler Pulleys.
Crimping Belt damages the Tensile Cords
and will result in premature failure.
Be careful not to over tighten the
Bolts when attaching the Tail Rotor
Blades. The Tail Blades should be
able to move with a slight amount
of resistance within the Tail Blade
Holders.
Bearing Retainer
Use Threadlock
Insert the Tail Boom
fully into the Tail Case
before tightening the
2.5x6mm Bolts.
These bolts are used only
to compress the boom.
Please do not screw them
in completely.
M3 Nylon Nut
M3 Washer
M3 Nylon Nut
M3 Nylon Nut
M3 Washer
M3x14 Cap
Head Bolt
M2.5x6 Cap
Head Bolt
M3x26 Cap
Head Bolt
M3x32 Cap
Head Bolt
M3x38 Cap Head Bolt x4
M3 Washer x4
M3 Nylon Lock Nut x10
M2.5x6 Cap Head Bolt x2
M3x14 Cap Head Bolt x2
M3x26 Cap Head Bolt x2
M2.5 x8 Self Tapping
Bolt X 4
M3x32 Cap Head Bolt x2
M3x25 Cap Head Bolt x2
See Page Team Tips!
M3 Nylon Nut
Boom
M3x40 Cap
Head Bolt
There are 2 grooves on the boom. The
shorter groove is towards the tail while
the longer one is towards the frame.

010 20 30 40
Main Gear
4
To adjust the correct backlash between
the Motor Pinion and the Main Gear
loose the 4 Motor Mount Bolts, then fix
them tightly with Threadlock.
M3 Nylon Lock Nut x1
M2.5x10 Cap Head Bolt x1
M3x27 Shanked Bolt x1
Use Threadlock
Check the correct rotation of the
Tail Rotor Blades. The Blade on
the Top moves to the rear. If the
Tail Rotor rotates incorrectly,
simply pull out the main shaft and
twist the Belt in the other
direction.
Lift the Main Shaft Collar upwards and
secure to the Main Shaft by slightly
tighten the Lock Screw. It is necessary
to align the Lock Screw through the
hole in the side of the Main Frame.
While securing the Lock Screw, make
sure that you are pushing down on the
Main Shaft so that there will be no
up/down play in the Main Shaft once
the collar is secured.
See Page Team Tips!
Gear Backlash Adjustment:
For smooth operation and
performance, it is necessary to adjust
the Gear Backlash properly. Excess
Gear Backlash can cause premature
Gear Wear and damage. Insufficient
Gear Backlash can cause vibration,
as well as overheating of the Motor
and Speed Controller. Adjust the Gear
Backlash by placing one piece of
paper between the Gears to set the
distance. When the Bolts are secure,
remove the paper and test the Gear
Backlash to insure that there is a
slight amount of free movement
between the gears.
Mast Collar
Main Shaft
M3 Nylon Nut
Apply This Hole
M2.5x10 Cap
Head Bolt
M3x27
Shanked Bolt
Main Shaft Clamp has to br
mounted below the Bearing
Block.

Adjust so that each side has exactly the same length
Thread
Flybar Thread
Thread
Paddle Insert
010 20 30 40
5Rotor,Washout & Swashplate
PushtheFlybarin
Be sure to note the correct
direction of the Flybar Paddles
as shown in the diagram. It is
very important to insure that the
Paddles are in parallel to each
other, as well as to the Flybar
Control Arm Assembly.
See Page Team Tips!
See Page Team Tips!
Paddle
Main Shaft
M2 5x8 Self Tapping Bolt.
Washout Link
M3X22 Shanked Bolt
M3 Nylon Nut
M3x4 Set Screw
Paddle Insert
M3x4 Set Screw
M4x4
Set Screw
Swashplate
In this step, push the Flybar through
the Flybar Collar, Flybar Holder, and
Flybar Control Arm. Using set screws,
fix the Arms and Collars onto the
Flybar. Make sure that both sides of the
Flybar are of equal lengths.
M3x22 Shanked Bolt x1
M2.5 x8 Self Tapping
Bolt X 4
M4x4 Set Screw x2
Use Threadlock
M3 Nylon Lock Nut x1
M3x4 Set Screw x6

010 20 30 40
6Equipment illustration
ESC
00 10 20 30 40 00
7Linkage
Ch6
To Motor
The following Linkage lengths indications are basic values. PLEASE BE AWARE THAT THEY COULD VARY
depend on used Servos and Arms. Some fine adjustments are still needed in following setup steps.
Esc
Pitch
Vecro Tape
Receiver
12S Battery
Aileron
Elevator
Rudder
Brushless Motor
25mmx2
2mm
Please cut away 1.5mm
from each Ball Link.
41mmx2
60mmx2
BEC

Servo Arm
Servo Screw
54.5mmx2
44.5mm
33.5mm
2x6mm Cap Head
Bolt
Stainless Balls
Do not apply plier to resize Ball Links. Pliers could
cause hidden damage to Ball Links and result in
failure when operation.
00 10 20 30 40 00
8Setup
Pitch
General Flight
Throttle Pitch
580% 9 deg
475%
350% 4~5 deg
225%
10% -5 deg
3D Style
Throttle Pitch
580% 10 deg
480% 5 deg
380% 0 deg
280% -5 deg
180% -10 deg
0%
20%
40%
60%
80%
100%
12345
0%
20%
40%
60%
80%
100%
12345
Throttle Curve
Throttle Curve
JR Futaba
Swash Type SWH
S3 120 SR3
Aile Elev Pitch
45% 45% 45%
Swash Type Setting
Timing: 22.5 deg
No Brakes
Very Soft Start
Esc Setup
Compass Model Ball Links are build up on
the tight side this allows you to adjust them
to your personal needs. For this we suggest
to use a Ball Link sizing tool.
The 6HV total pitch range is about
30°. If you set the pitch too high then
flight time will be shortened.
See Page Team Tips!
Most servo manufacturer provide
extra long servo horn, please apply
that and setup the servo horn at 25mm
to the center.
Too high rate on Throttle curve setting could
result in extreme high RPM on main rotor.
Head speed over 2100 rpm could potentially
cause serious mechanical failure.

Make sure that the Flybar Control Arms and Paddles are in line as shown in the diagram.
Horizontal
Horizontal
Attention:
0 Pitch°
Mixing Arm
3°
A
Turn on the Transmitter, set the Throttle Stick into center position for 0 ° Pitch. Use the Subtrim menu to
adjust the 3 Swash Servo Arms to level.
B
To do all Basic Setups first UNPLUG
ESC from the receiver then use a 4.8V
Receiver Battery for the setup.
Level the Swashplate by adjusting the links from the Servo Arms to the Swashplate. Use a
Compass Swashplate Tool as guide. Then set level the Washout Arms.
C
By adjusting the Links between Swashplate and Mixing Arms set the Mixing Arms to a 3° downward position.
Adjust the Links between the Mixing Arms and the Main Blade Holder to set the Main Blade Pitch to 0°.
D
Parallel
Horizontal
06 0501 Swash Plate Tool-
Horizontal

With Rudder Stick in middle position, set the Rudder Servo Arm at 90° to the Tail Control Link. Set the Tail
Blades to 7° Pitch.
90°
Use this Hole for Tail Link Ball
Aileron Check
Mod 1 Mod 2 Swashplate Reaction
Tilt Left
Elevator Check
Tilt Forward
Tilt Right
Tilt Backward
Rudder Check
Tail Pitch Plate
Slide left Slide Right
Pitch Check
Swash Plate
Ascent
Descent
00 10 20 30 40
00
9Servo Direction Check
Turn the Transmitter on, your position has to be right behind the helicopters Tail. Make sure that the Swashplate
Mode is set to CCPM 120°. Move the Sticks according to the drawings and check the reaction of the Swashplate
and the Tail Pitch Plate. Check as well your Throttle settings. Adjust your Transmitter settings accordingly.
13mm
E
7°7°

M2.5x6 Self
Tapping Bolt
Canopy
Canopy Insert
Use AB Glue
A
B
M2.5x6 Self Tapping
Bolt X 2
Drill a 6.5mm D
Hole here
A
B
A
B
A
B
00 10 20 30 40 00
10 Canopy
00 10 20 30 40
00
11 Rotor Direction
5. Check that main blades, paddles and tail blades are installed in the right direction.
6. Check that there are no missing or damaged parts, never fly with any damaged parts.
7. Make sure all electronic devices are firmly fastened and connected.
8. Before starting the motor, make sure the IDLE switch is OFF and throttle stick is in the low position.
9. Only turn off the transmiter after turning off the receiver.
1. Ensure that receiver & transmitter battery are fully charged.
2 Check all bolts and screws are tight..
3 Repeat step 10 to check all servo functions are correct..
4 Ensure tail and gyro direction are correctly set..
00 10 20 30 40
00
12 Pre Flight Check
Place the Canopy onto the Frames and mark
the right position of the Canopy Inserts. Apply
AB Glue to fix the Canopy Insert onto the
canopy.
When the Rotor spins clockwise the Tail Blades should turn
clockwise as well watching the Tail Rotor from the Tail Fin side.
If not Belt is installed the wrong way and has to be corrected.

Main Grip
Apply Grease Here
Larger ID
(IN)
Smaller ID
(OUT)
Thrust Bearing Direction
Main grips are factory preassembled; in case of reassembling
make absolutely sure you use the correct “ID” ring at the correct
position. Place the large ID Towards the Main Shaft and the
small I.D. Towards the Blades during assembly.
Team Tips
General:
Step 3
Step 4
Step 5
Step 7:
The Ball Links on the 6HV need to be resized.
It is very important to resize the Ball Links for smooth travel, especially on the tail; because
issues like tail wag, sluggish tail, or inconsistent Piro-rate will occur.
It is vital not to over tighten the Main Gear Bolt, or it can cause the Autorotation Gear to
slightly warp. This can cause a premature Belt failure, or reduce the lifetime of the Belt.
:
:
:
Leave About 0.1mm space between the Flybar Collar and the Flybar Holder, this avoids the
Flybar to snap when flying.
For 3D flight please set Governor mode to High, Throttle curve at 75%~80% flat.
To get extra flight time, please set ESC Timing to 7.5deg.

COMPASS MODEL (HK) LIMITED
www.compassmodel.com

Parts List
6 HV
Version 1.0/2010
How to order your parts!
1.Check part number on the drawing
2.Use the part number to find the ORDER number on the list
3.Only use ORDER number for your parts order
Copyright @Compass Model 2009
As we continue to improve our products, this part list may not reflect all recent product amendments.
For more information, please refer to www.compassmodel.com

02 0507-
82 2562-
02 0511-
81 0304-
02 0543-
81 0304-
60 3083-
02 0553S-
02 0539-
02 0540-
02 0701-
02 0536G-
80 0206S-
80 0206S-
80 2514-
02 0531-
60 4083-
81 0404-
80 0208S-
60 4083-
60 8 65-1
82 5131-
79 0510-
61 4083-
02 0118-
80 0428-
02 0133-
80 0206S-
02 0701-
07 0106-
91 0004-
91 0003-
80 0322S-
02 0113-
02 0109-
02 0110-
60 8165-
80 0310-80 0304-
63 8165-
82 821003-
79 0308-
02-0132F
02-5131
Main Grip
Apply Grease Here
Larger ID
(IN)
Smaller ID
(OUT)
Thrust Bearing Direction
Main grips are factory preassembled; in
case of reassembling make absolutely
sure you use the correct “ID” ring at the
correct position. Place the large ID
Towards the Main Shaft and the small I.D.
Towards the Blades during assembly.
97-0920

Part No. Part Description Order No. Order Description Qty,
02-0109 Delrin Dam
p
ener 8m
m
02-0109 Delrin Dam
p
eners 8m
m
2
p
cs/ba
g
02-0110 S
p
indle Washer 8mm 02-0110 S
p
indle Washers 8mm 2
p
cs/ba
g
02-0113 S
p
indle Shaft 8m
m
02-0113 S
p
indle Shafts 8m
m
2
p
cs/ba
g
02-0118 Fl
y
bar Holder Collar 02-0118 Fl
y
bar Holder Collars
(
Rotor Hub
)
2
p
cs/ba
g
02-0132F Main Blade Holder Arm 02-0132F Main Blade Holder Arm se
t
2 set/ba
g
02-0133 Main Blade Holder Bushing 02-5131 Provided w 02-5131 1 set/ba
g
02-0507 Mixin
g
Arm 02-0507 Mixin
g
Arm se
t
2
p
cs/ba
g
02-0511 Paddle Insert 02-0553S Paddle se
t
2
p
cs/ba
g
02-0531 Mixin
g
Arm Bushin
g
02-0531S Bushin
g
set
(
3 sizes
)
6
p
cs/ba
g
02-0536G Fl
y
bar Holder 02-0536G Fl
y
bar Holder w; Bearin
g
s1
p
cs/ba
g
02-0539 Fl
y
bar Colla
r
02-0539 Fl
y
bar Collars 2
p
cs/ba
g
02-0540 Fl
y
bar Control Arm 02-0540s Fl
y
bar Control Arm se
t
2
p
cs/ba
g
02-0543 Fl
y
ba
r
02-0543 Fl
y
bars 2
p
cs/ba
g
02-0553S Paddle 02-0553S Paddle se
t
2
p
cs/ba
g
02-0701 Stainless Link Ball 02-0701 Stainless Link Balls 10
p
cs/ba
g
02-5131 Main Blade Holder Metal 02-5131 Main Blade Holder Metal 1 set/ba
g
07-0106 Rotor Hub 07-0106 Rotor Hub set 1 set/ba
g
60-3083 Ball Bearin
g
3x8x3 60-3083 Ball Bearin
g
s 3x8x3 5
p
cs/ba
g
60-4083 Ball Bearin
g
4x8x3 60-4083 Ball Bearin
g
s 4x8x3 5
p
cs/ba
g
60-8165 Ball Bearin
g
8x16x5 60-8165 Ball Bearin
g
s 8x16x5 2
p
cs/ba
g
61-4083 Flan
g
ed Bearin
g
4x8x3 61-4083 Flan
g
ed Bearin
g
s 4x8x3 5
p
cs/ba
g
63-8165 Thrust Bearin
g
8x16x5 63-8165 Thrust Bearin
g
s 8x16x5 2 set/ba
g
79-0308 Button Head Bolt M3×8 79-0308 Button Head Bolts M3×8 10
p
cs/ba
g
79-0510 Button Head Bolt M5x10 79-0510 Button Head Bolts M5x10 10
p
cs/ba
g
80-0206S Ca
p
Head Bolt M2x6 80-0206S Ca
p
Head Bolts M2x6 10
p
cs/ba
g
80-0208S Ca
p
Head Bolt M2x8 80-0208S Ca
p
Head Bolts M2x8 10
p
cs/ba
g
80-0304 Ca
p
Head Bolt M3x4 80-0304 Ca
p
Head Bolts M3x4 2
p
cs/ba
g
80-0310 Ca
p
Head Bolt M3x10 80-0310 Ca
p
Head Bolts M3x10 10
p
cs/ba
g
80-0322S Shanked Bolt M3x22 80-0322S Shanked Bolts M3x22 2
p
cs/ba
g
80-0428 Shanked Bolt M4×28 80-0428 Shanked Bolts M4×28 2
p
cs/ba
g
80-2514 Ca
p
Head Bolt M2.5×14 80-2514 Ca
p
Head Bolts M2.5×14 10
p
cs/ba
g
81-0304 Set Screw M3x4 81-0304 Set Screws M3x4 10
p
cs/ba
g
81-0404 Set Screw M4x4 81-0404 Set Screws M4x4 10
p
cs/ba
g
82-2562 Washer 2.6x5.2x0.3 82-2562 Washers 2.6x5.2x0.3 10
p
cs/ba
g
82-5131 Washer 5.3×13×1 82-5131 Washers 5.3×13×1 10
p
cs/ba
g
82-821003 Washer 8.2×10×0.3 82-821003 Washers 8.2×10×0.3 2
p
cs/ba
g
91-0003
Ny
lon Lock Nut M3 91-0003
Ny
lon Lock Nuts M3 10
p
cs/ba
g
91-0004
Ny
lon Lock Nut M4 91-0004
Ny
lon Lock Nuts M4 10
p
cs/ba
g
97-0920 Rubber O-Rin
g
13×9×2 97-0920 Rubber O-Rin
g
set 13×9×2 4
p
cs/ba
g

02 0264A-02 0264B-
02 0250-
80 0208S-
91 0003-
91 0003-
60 3092-
80 0314-
80 0208-82 3402-
63 4094-
60 4094-
02 0209-
81 0305-
02 0701-
90 0201-80 2506-
80 2506-
02 0229-
98 1800B-
02 0214-
02 0262-
05 0227-
05 0231-
61 5134-
82 5808-
82 5804-
61 5134-
06 0213-
60 7113-
02-0205
80 2508-
02 0230-
02 0213-
05 0229-
06 0208-
02 1211-02 0225-
60 7113-
06 0222-
02-8205
02-8206
05-0227Z
06 0213S-