arf BH67 User manual

Instruction Manual book


RecommendedR.C:4channelswith
4-5 servos.


Propeller : 13 x 6.
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Speed Control: 60A.
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
ElectricMotor: AXI 2826/10.


Battery:4-5Cells-Li-Poly-14.8-18.5v- 5.000mAh-20c.
SPECIFICATION
MadeinVietnam.


Wingspan : 1,580mm. 62.20 in.


Length : 1,265 mm. 49.81in.


Weight : 2.5kg. 5.50lbs.
PartsListingrequired(not included).


Radio : 4 channels.


Servo : 5 servos.


Glow Engine : 46-55 cu.in. 2 stroke.

ANGEL- ITEM CODE: BH67. Instruction Manual
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This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your ANGEL.Usetheparts listing below to identify
all parts.
WARNING.
Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & RESPONSIBILITY.
IfyouareinexperiencedwithbasicR/CflightwestronglyrecommendyoucontactyourR/Csupplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
proceduresdesignedtohelp the new pilotonhiswaytosuccessfulR/Cflight.Theywill also beable
to advise on any insurance and safety regulations that may apply.
TOOLS & SUPPLIES NEEDED.
Thick cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modellingknife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
Thread-lock.
Paper towels.
Some more parts.
HARDWAREPACK
COWLING.
Landinggear.....
Toavoidscratching your new airplane,do not
unwrap the pieces until they are needed for
assembly. Cover your workbench with an old
towel or brown paper, both to protect the air-
craftand to protect thetable. Keep acoupleof
jars or bowls handy to hold the small parts af-
ter you open the bag.
Pleasetrialfitall the parts. Makesureyouhave
the correct parts and that they fit and are
alignedproperlybeforegluing!Thiswillassure
proper assembly. ANGEL ARF is hand made
from natural materials, every plane is unique
andminor adjustments mayhave to bemade.
However, you should find the fit superior and
assembly simple.
The painted and plastic parts used in this kit
are fuel proof. However, they are not tolerant
of many harsh chemicals including the follow-
ing:paintthinner,C/Aglueaccelerator,C/Aglue
debonderandacetone. Do notletthesechemi-
cals come in contact with the colors on the
covering and the plastic parts.
PARTS LISTING.
FUSELAGE ASSEMBLY
(1) Fuselage.
WING ASSEMBLY
(1) Right wing half with pre-installed
aileron.
(1) Left wing half with pre-installed
aileron.
Tail section assembly
(1) Vertical stabilizer with pre-
installedrudder.
(1) Horizontal stabilizer with pre-
installedelevatorhalves.
SUGGESTION.
NOTE.

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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+ This is not a toy
+ Be sure that no other flyers are using your
radio frequency.
+ Do not smoke near fuel
+ Store fuel in a cool, dry place, away from
children and pets.
+ Wear safety glasses.
+Theglowplug clipmustbesecurelyattached
to the glow plug.
+ Do not flip the propeller with your fingers.
+ Keep loose clothing and wires away from
thepropeller.
+ Do not start the engine if people are near.
Donot stand inlinewith the sideof the propel-
ler.
+ Make engine adjustments from behind the
propeller only. Do not reach around the spin-
ningpropeller.
SAFETY PRECAUTION.
REPLACEMENT LARGE PARTS
B. Wing panel.
C. Fuselage.
A.Cowling.
D . Horizon stabilizer.
F. Aluminium wing dihedral brace.
E. Vertical stabilizer
REPLACEMENT SMALL PARTS
 1. Install the rubber grommets and brass
eyelets onto the aileron servo.
INSTALLING THEAILERON SERVOS.
D. E.
F.
A.
B. B.
C.
Bottom side
C/Aglue
Bottom side
C/Aglue
Bottom side
E.
G. Decal sheet.

ANGEL- ITEM CODE: BH67. Instruction Manual
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Bottom side
C/Aglue
Bottom side
C/Aglue
Bottom side
 2.Using amodeling knife,remove thecov-
ering servo tray.
 3. Drill 1,5mm pilot holes through the block
of wood for each of the four mounting screws
provided with the servo. Install servo into ai-
leron servo tray as same as picture below.
Bottom side
Remove covering
Servo tray
 4. Using the thread as a guide and using
masking tape, tape the servo lead to the end
of the thread: carefully pull the thread out.
When you have pulled the servo lead out, re-
move the masking tape and the servo lead
from the thread.
Secure
Thread
Electric wire
 5. Instal servo tray with aileron servo into
the wing as same as picture below.

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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2 x 10 mm.
Repeat the procedure for the other wing
half.
INSTALLINGTHEAILERONCONTROLHORN.
Controlhorn of Aileron
1. Using a ruler & pen to draw a straight
line as below picture.
 3. Drillthrough 6mm (diameter)the aileron
using the control horn as a guide and screw
the control horn in place.
2. Locate nylon control horn, nylon con-
trol horn backplates .
Bottom side
Bottom side
Drilla hole
6mmdiameter.
Nilon control clasp. M3lock nut.
3x35mm.

ANGEL- ITEM CODE: BH67. Instruction Manual
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Aileron
control horn.
 4. Install control horn as same as picture
below.
Bottom side
Bottom side
Bottom side
Bottom side
C/Aglue
 1. Working with the aileron linkage for
now, thread one clevis onto one of the
threaded wires.
INSTALLING THE AILERON
LINKAGES.
 2. Attach the clevis to the outer hole in the
control horn.
 3. Plug the aileron servo into the receiver
andcentertheservo. Install the servoarmonto
the servo. The servo arm should be perpen-
dicular to the servo and point toward the mid-
dle of the wing.
M2lock nut.
M2clevis.
Snapkeeper.
Bend and
cut after

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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 4. Locate one nylon servo arm, and using
wire cutters,remove all but one of the arms.
Using a 2mm drill bit, enlarge the third hole
out from the center of the arm to accommo-
date the aileron pushrod wire.
 5. Using pliers, carefully make a90 degree
bend down at the mark made. Cut off the ex-
cess wire, leaving about 4mm beyond the
bend.
 6. Insertthe90degree bend down through
the hole in the servo arm. Install one nylon
snap keeper over the wire to secure it to the
arm.Install the servo armretainingscrew and
remove the masking tape from the aileron.
Bottom side
Top side
INSTALLING THE ENGINE MOUNT.
THERE ARE TWO OPTIONS:
1. ELECTRIC MOTOR
2. ENGINE MOUNT.
1. OPTION 1: ELECTRIC MOTOR.
Epoxyglue
C/Aglue
3 x 15mm 3x 15mm

ANGEL- ITEM CODE: BH67. Instruction Manual
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2. OPTION 2: ENGINE MOUNT.
4 x 25mm
Secure
Tie wrap
Tie wrap

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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INSTALLING THE STOPPER ASSEMBLY
FUEL TANK.
 1. The stopper has been pre-assembled at
the factory.
 2.Using a modelingknife, cut one lengthof
siliconfuel line (thelength of silicon fuel lineis
calculated by how the weighted clunk should
restabout 8mm away fromthe rear ofthetank
andmovefreely inside thetank).Connect one
end of the line to the weighted clunk and the
otherend to the nylonpick up tubein the stop-
per.
 4. Carefully bendthe third nylontube down
ata45degreeangle(usingacigarettelighter).
This tubewillbevent tube to thefuelingvalve.
When the stopper assembly is installed
in the tank, the top of the vent tube should
rest just below the top surface of the tank.
It should not touch the top of the tank.
 5. Test fit the stopper assembly into the
tank. It may be necessary to remove some of
the flashing around the tank opening using
amodelingknife. Ifflashing is present, make
sure none of it falls into the tank.
 3. Carefully bendthe second nylontube up
ata45degreeangle(usingacigarettelighter).
This tube will be the vent tube to the muffler.
Vent tube
Fuelfill tube
Fuel pick- up tube
 6. When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper ex-
pandsandsealsthetankopening.Donot over
tighten the assembly as this could cause the
tank to split.
 8. Feed three lines through the fuel tank
compartment and through the pre-drilled hole
in the firewall. Pull the lines out from behind
the engine, while guiding the fuel tank into
place. Push the fuel tank as far forward as
possible,thefrontofthetank should just about
touch the back of the firewall.
 7. Using a modeling knife, cut 3 lengths of
fuel line 150mm long. Connect 2 lines to the 2
vent tubes and 1 line to the fuel pickup tube in
the stopper.
Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should flow
througheasily.

ANGEL- ITEM CODE: BH67. Instruction Manual
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Do not secure the tank into place perma-
nently until after balancing the airplane.
You may need to remove the tank to mount
the battery in the fuel tank compartment.
Fueltank
Locate the long piece of wire used for the
throttlepushrod.Oneendof the wire has been
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armofthe enginewhentheengineisfittedonto
theengine mount. Fittheengine to theengine
mount using the screws provided.
105mm
Secure
Drill a hole
2mm diameter.
 9. To secure the fuel tank in place, apply a
bead of silicon sealer to the forward area of
thetank,whereit exits the fuselage behindthe
enginemountingbox and totherearofthetank
at the forward bulkhead.
Secure
INSTALLING THE ENGINE.

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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3 x 20mm
Secure
Pushrod wire NOSE GEAR INSTALLATION.
Steering arm.
4 x 30mm
Adjust the nose gear steering arm until the
arm is parallel with the fire wall.
Installing steering arm as follow
Right side
Removecovering
Right side
Right side
Right side

ANGEL- ITEM CODE: BH67. Instruction Manual
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Secure
Right side
Left side
COWLING.
 1. Slide the fiberglass cowl over the en-
gineandlineup the back edgeofthecowl with
the marks you made on the fuselage.
Trim and
cut after
Right side
Steering arm

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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2. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththecrankshaftoftheengine. The
front of the cowl should be positioned so the
crankshaft is in nearly the middle of the cowl
opening. Hold the cowl firmly in place using
pieces of masking tape.
4. Installthemufflerandmufflerextension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
andfuel filler valve.
3. Slide the cowl back over the engine
andsecureit in placeusing four wood screws.
See picture below.
3 x 12mm
Right side
Machine screw.
Front view.
Left side
Installthespinnerbackplate,propeller and
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
INSTALLING THE SPINNER.
3 x 12mm
Secure
PARTSREQUIRED
MAIN GEAR INSTALATION.
Right side

ANGEL- ITEM CODE: BH67. Instruction Manual
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3) A drop of C/A glue on the wheel collar
screws will help keep them from coming lose
duringoperation.
Repeat the process for the other wheel.
INSTALLING THE THROTTLE PUSHROD.
 Install one adjustable metal connector
through the third hole out from the center of
one servo arm, enlarge the hole in the servo
arm using a 2mm drill bit to accommodate the
servo connector. Remove the excess mate-
rial from the arm.
After installing the adjustable metal con-
nector apply a small drop of thin C/A to
the bottom nut. This will prevent the con-
nector from loosening during flight.
Servoarm
Connector.
1)Assembleandmountingthewheelpants
as shown in the following pictures.
2) Using the hardware provided, mount
the main landing gear to the fuselage.
Secure

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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SERVO INSTALLATION.
ELEVATOR INSTALLATION.
 2. Mount the servo to the tray using the
mountingscrewsprovidedwithyour radio sys-
tem.
 1. Install the rubber grommets and brass
colletsinto the elevator servo.Testfittheservo
into the servo tray.
Secure
Cut
Throttleservo
C/Aglue
C/Aglue
C/Aglue

ANGEL- ITEM CODE: BH67. Instruction Manual
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Bottom side
Markline
 4. Remove the stabilizer. Using the lines
youjust drew asa guide, carefullyremove the
coveringfrombetweenthem using a modeling
knife. When cutting through the cover-
ingto remove it, cut with only enough pres-
sure to only cut through the covering it’s
self. Cutting into the balsa structure may
weaken it. This could lead to possible fail-
ure during flight
Removecovering
C/Aglue
See pictures below:
 1. Draw a center line onto the horizontal
stabilizer. Then slide the horizontal into the
fuselage.
 2 Using a modeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
 3. Mark the shapeof the verticalon the left
and right sides onto the horizontal stabilizer
using a felt-tip pen
Removecovering
Markline
Top side
Center line

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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 5. When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 minute epoxy. Apply a thin layer to the
topand bottom of thestabilizer mounting area
and to the stabilizer mounting platform sides
inthefuselage.Slidethestabilizerinplaceand
re-align. Double check all of your measure-
ments one more time before the epoxy cures.
Remove any excess epoxy using a paper
towel and rubbing alcohol and hold the stabi-
lizer in place with T-pins or masking tape.
C/Aglue
6.After the epoxy has fully cured, remove
the masking tape or T-pins used to hold the
stabilizer in place and carefully inspect the
glue joints. Use more epoxy to fill in any
gaps that were not filled previously and
clean up the excess using a paper towel and
rubbingalcohol.
Bottom side
C/Aglue
C/Aglue
Top side
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
Elevator control horn.
ELEVATOR CONTROLHORN INSTALLATION.
Markpoint
Bottom side
Nilon control clasp.
3x35mm.
M3lock nut.

ANGEL- ITEM CODE: BH67. Instruction Manual
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Elevator
pushrod Elevator
pushrod
Secure
Cut
Drill a hole
6 mm diameter

ANGEL- ITEM CODE: BH67. INSTRUCTION MANUAL
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Cut
Bendand cut after
VERTICAL INSTALLATION.
Rudder servo install as same as method of
elevator servo. See picture below:
Elevatorservo
C/Aglue

ANGEL- ITEM CODE: BH67. Instruction Manual
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C/Aglue
 1) Using a modeling knife, remove the
covering from the top of the fuselage and the
covering from over the precut hinge slot cut
intothe lower rearportion of thefuselage This
slot accepts the lower vertical.
Remove
covering
 3. Markthe shape ofthe vertical onthe left
and right side on the rudder using a felt-tip
pen.
 2. Slide the rudder into the fuselage as
same as picture below.
C/Aglue
Hingleslot
C/Aglue
C/Aglue
 4. Now, remove the rudder and using a
modeling knife, carefully cut just inside the
marked lines and remove the film of the rud-
der. Just as you did with the horizontal stabi-
lizer, make sure you only press hard enough
to cut the film, not the balsa rudder.
Remove
covering