Black Horse Model GRUNAU BABY 2B Owner's manual

Instruction Manual book
SPECIFICATION


 Wingspan : 6,000 mm 236,22 in.


 Length : 2,740 mm 107,87 in.


 Weight : 17.5kg 38.5Lbs.


 Radio : 08 channels.


 Servo : 07-08 HS-5685MH(HITEC)


 Battery : 2 Cells-Li-Po 7.4Volt - 3000 mAh
Made in Vietnam.
ITEM CODE:BH 115.

This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your GRUNAUBABY2B. Use the parts 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.
If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C supplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
procedures designed to help the new pilot on his way to successful R/C flight. They will also be able
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.
Modelling knife.
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
Landing gear.....
To avoid scratching 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-
craft and to protect the table. Keep a couple of
jars or bowls handy to hold the small parts af-
ter you open the bag.
Please trial fit all the parts. Make sure you have
the correct parts and that they fit and are
aligned properly before gluing! This will assure
proper assembly.GRUNAU BABY 2B ARF is
hand made from natural materials, every plane
is unique and minor adjustments may have to
be made. However, you should find the fit su-
perior 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: paint thinner, C/A glue accelerator, C/A glue
debonder and acetone. Do not let these chemi-
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-
installed rudder.
(1) Horizontal stabilizer with pre-
installed elevator halves.
SUGGESTION.
NOTE.

REPLACEMENTLARGEPARTS
B. Wing panel.
C. Fuselage.
G. Decal sheet.
A1. Pilot
A 2.
D.Horizontal stabilizer.
F. Aluminium wing dihedral brace.
E. Rudder
1. Plastic parts of wing.
2. Plastic parts for rudder pushrod. 4. Horizon stabilizer struts.
5.Aluminium landing gear.
REPLACEMENT SMALL PARTS
3.Wing struts set.
6.Aluminium tail gear.
A3. Fuselage top hatch
SAFETY PRECAUTION.
1.
2.
3.
4.
5.
6.
F4.
D.
E.
D.
B.
F1.
C1.
A 1.
F2.
B.
C2.
F3.
G.
A 2. A 3.
+ This is not a toy
+ Be sure that no other flyers are using your radio frequency.
+ Wear safety glasses.
+ Keep loose clothing and wires away from the propeller.
+ Do not start the motor if people are near. Do not stand in line with the side of the propeller.
+ Make motor adjustments from behind the propeller only. Do not reach around the spinning propel-
ler.

I. AILERON.
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.
2. 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.
1) Install the rubber grommets and brass
eyelets onto the aileron servos.
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.
Electric wire
thread
1.1.INSTALLING THE AILERON
SERVOS 1.
Servo 1
Remove
covering
servo tray.
Aileron Bottom side
Drill a hole
1.5mm diameter
Secure

Secure
1.2.INSTALLING THE AILERON
CONTROL HORN 1.
Install aileron control horn as same as
picture below.
Repeat the procedure for the other wing
half.
Installing the aileron linkages as pictures
below.
3x15mm
75mm
3x10mm
1.3.INSTALLING THE AILERON
LINKAGES 1.
Elevator
control horn 1
Secure
3 x 30mm
Secure.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Electric wire
Secure
2.2 INSTALLING THE AILERON
CONTROL HORN 2.
Secure
Repeat the procedure for the other wing
half.
Servo 2
3mm x 30mm.
2.1 INSTALLING THE AILERON
SERVOS 2.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Secure
Elevator
control horn 2
Installing the aileron linkages as pictures
below.
3 x 15mm
75mm
3 x 10mm
2.3.INSTALLING THE AILERON
LINKAGES 2.
Secure
Secure
3 x 10mm
Drill a hole
2mm diameter

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Secure.
INSTALLATION FUSELAGE.
3x10mm.
Repeat the procedure for the other wing
half.
Bottom side
620 mm
25mm
Aluminium brace.
Push.
Aluminium brace.

9
GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Wing bolt.
Right side
Left side.
Wing bolt.
Wing bolt
6x4.5mm.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
See pictures below:
HORIZONTAL STABILIZER.
Bottom side.
Servo
elevator
Remove
covering
Top side.
Left side.
Wing bolt.
Top Fuselage.
Secure
secure.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Drill a hole
1.5mm diameter
Secure
Secure.
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ELEVATOR CONTROL HORN INSTALLA-
TION.
Control horn of Elevator.
3x30mm
Secure.
Elevator
control horn.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
 Elevator and rudder pushrod install as same
as the way of aileron pushrod.
Secure.
ELEVATOR PUSHROD INSTALLATION.
3 x15mm
135mm
3x10mm
Repeat the procedure for the other
horizontal stabilizer half.
Secure.
345 mm
12mm Aluminium brace.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Secure.
Horizontal Stabilizer Struts.
3x15mm.
3x15mm. 3x15mm.
3x15mm.
Bottom side
Secure.
3 x 15mm.
Push.
3x15mm.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Secure.
Secure.
3x15mm
Secure.
Rudder servo install as same as method of
elevator servo. See picture below:
rudder servo.
Servo rudder.
RUDDER SERVO INSTALLATION.
Bottom side.
Secure.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Rudder control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
RUDDER CONTROL HORN INSTALLA-
TION.
Control horn of Rudder.
Rudder
control horn.
Push
3 x 40mm.
Aluminium

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
A+B Epoxy
PLUS glue
1. Rudder push - pull system install as same
as picture below.
A+B Epoxy
PLUS Glue.
RUDDER CABLE INSTALLATION.
3 x 10mm
Secure
3x 15mm
Cut.
Throttle cable.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Plastic parts of rudder
pushrod.
Cut.
Secure
cut
C/A glue.
Bottom side.
MOUNTING THE TAIL WHEEL
BRACKET.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
Bottom side.
3x 15mm
SERVO INSTALLATION.
Secure.
Secure
3x15mm.
100 mm.
3x15mm.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
130 mm
aluminium 12mm
aluminium tube.
4x12mm
4 x 25mm
PARTSREQUIRED
INSTALLING LANDING GEAR.
aluminium tube.
Lock
M5 Lock nut.

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GRUNAU BABY 2B - Item code: BH115. Instruction Manual
C/A glue.
4x12mm4x25mm


1) Cut out the switch hole using a modeling
knife. Use a 2mm drill bit and drill out the two
mounting holes through the fuselage side.


2) Secure the switch in place using the
two machine screws provided with the radio
system.
Secure
Secure.
4x 12mm
4x25mm
INSTALLING THE SWITCH.