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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 7HV 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 7HV Max. rotor head rpm: 2100 U/min
Atom 7HV Max. collective pitch range: +/- 12°

Attention:

Atom 7HV Limitations

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 7HV is powered by a quiet, smooth-running electric motor, it should be assembled and operated with the same
care as glow engine helicopters. When operating your Atom 7HV, please exercise caution and safety.

Summary of Contents for 7HV

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Page 3: ...on 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 probl...

Page 4: ...ex Wrench Set 1 5mm 2mm 2 5mm 3mm 5mm Cutter Knife Main Rotor Pitch Gauge Ball Link Sizing Tool Ball Link Plier When first opening your Atom kit you will notice that all of the parts are packaged and...

Page 5: ...low 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...

Page 6: ...against the bottom of the cyclic servos Tighten the four screws in the X shaped parts that secure the middle bearing block Now slide the main shaft up and down to make sure the bearing blocks are all...

Page 7: ...damage the landing struts A B 1 1 2 3 4 Pos Description Qty 1 M3x20 Socket Head Bolt 8 2 3mm Washer 8 3 3x5mm Set Screw 4 4 Skid Caps 4 Tail Servo Installation 6 7 Tip Do not over tighten the four ser...

Page 8: ...the belt very carefully at the cord You can also use a strand and bend a hook at one of the ends Crimping the belt damages the tensile cords and will result in premature failure Slide the tail case co...

Page 9: ...ng direction or more Slide the Tail Boom through the tail boom mount and between the idler pulleys Tip Slide the tail boom clamp over the boom Unscrew one of the ball links on the tail control rod Scr...

Page 10: ...and pull the tail control rod as far as possible to the rear Slide the heat shrink over the tail control rod and shrink it carefully with a lighter 2 5 7 Use medium threadlock on all screws going int...

Page 11: ...e 2 of the 4 slots in the motorplate The 4mm slots for motors with M4 screws and the 3mm slots for motors with M3 screws Only 2 screws are necessary in this case 4mm slot 3mm slot Use medium threadloc...

Page 12: ...ires and connectors can cause severe damage to your model and equipment Oil the motor bearings each 10 flights and change them if they make strange noises or when the motor gets clearance at the shaft...

Page 13: ...x the boom Check the belt tension sometimes Readjustments may be needed after a while or big temperature differences swing range Tip Fix the tail boom clamp later so you can adjust the angle for a per...

Page 14: ...ID towards the blades during assembly Use medium threadlock on all screws going into metal parts Mount the mainrotorhead using the upper hole VERY IMPORTANT The feathering spindle shaft screws are not...

Page 15: ...it transmitter and receiver very attentively Each FBL Unit is different follow the manuals step by step and ask for help if you have problems with the programming and installation ESC To Motor BEC FBL...

Page 16: ...age Lengths Servo Horn to Servo center about 17 5mm Servo to Swash about 57mm inner edge to inner edge Swash to A connector 58mm inner edge to inner edge as per picture Use medium threadlock on all sc...

Page 17: ...mit of the tail servo to 4 5mm from slider to bearing With the tail pitch slider in this position the helicopter will turn clockwise Set the limit of the tail servo to 16 3mm from slider to bearing Wi...

Page 18: ...s contacts and open gaps between two contacts touching the frame can cause a short curcuit and damage to the RC Equipment Tip The best way to protect your wires is to use braiding sleeve such as those...

Page 19: ...ages at exactly the same length Level the swashplate horizontally in all directions by using the subtrim therefore read the manual of your FBL Unit and follow the instructions Please read the manual f...

Page 20: ...hplate must tilt backwards Tilt the helicopter backwards as shown in the picture The swashplate must tilt forwards Tilt the helicopter to the left the swashplate must tilt to the right as shown in the...

Page 21: ...Tilt Left Elevator Check Tilt Forward Tilt Right Tilt Backward Rudder Check Tail Pitch Plate Pitch Check Swash Plate Ascent Descent Slide left Slide Right The picuture below shows how the swashplate...

Page 22: ...ransmission problems and or problems like hard tail kicks and lockouts during flight you have to to a grounding We recommend to ground each helicopter for safety reasons if you are not sure if everyth...

Page 23: ...get the help of an other pilot for safety reasons Get in a hover and ask him to watch the rotor disk Both blades must be in one line If there are two disks or the blades appear thicker than they are y...

Page 24: ...COMPASS MODEL HK LIMITED www compassmodel com...

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