Black Horse Model BH123 Owner's manual

Instruction Manual book

Made in Vietnam.

SPECIFICATION

ITEM CODE BH123.



 Wingspan : 1,800 mm 70.87 in.



 Length : 1,385 mm 54.53 in.



 Weight : 4.3 kg 9.46 Lbs.



 Radio : 08 channels.



 Servo : 09 servos



 Engine : 55 - 2 Stroke

15-20 CC Gas

Electric Motor: RIMFIRE.80

 Battery: 5-6 Cells-Li-Poly-18.5 -22.2V-5.500mAh

 Propeller: 15X 6

Speed control: 60A.

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

This instruction manual is designed to help you build a great flying aeroplane. Please read this

manual thoroughly before starting assembly of your GROB G-115 TUTOR T1.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

COWLING.

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.GROBG-115ETUTORT1 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 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: 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.

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

Caution: this model is not a toy!

If you are a beginner to this type of powered model, please ask an experienced model flyer for help

and support. If you attempt to operate the model without knowing what you are doing you could

easily injure yourself or somebody else. Please keep your safety and well-being in mind at all

times.

Important: before you start construction

Even if you have already built a large number of RC models please read right through these

instructions and check all the kit components against the parts list. We have taken great trouble to

keep construction as simple as possible, without making any compromises in the area of safety.

Note regarding the film covering

Minor creases or bubbles may develop in the film covering due to major fluctuations in weather

conditions (temperature, humidity etc.); in rare cases you may even find a slight warp in a

component. These minor faults are in the nature of film-covered built-up wooden structures, and

can easily be corrected using a heat gun, as commonly used for modelling.

Creases: Blow warm air over the area and rub down with a soft cloth.

Wing warp: Hold the panel twisted gently in the opposite direction to the warp, and apply

warm air to remove the creases from the covering.

Caution! do not heat the film more than is absolutely necessary. If the air or the iron is too hot, the

film may melt and holes may be formed.

This model is highly pre-fabricated and can be built in a very short time. However, the work which

you have to carry out is important and must be done carefully. The model will only be strong and

fly well if you complete your tasks competently - so please work slowly and accurately.

When self-tapping screws have to be screwed into wood, apply a little white glue to

prevent them shaking loose: just squirt white glue into the hole and fit the screw.

+ 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.

+The glow plug clip must be securely attached to the glow plug.

+ Do not flip the propeller with your fingers.

+ Keep loose clothing and wires away from the propeller.

+ Do not start the engine if people are near. Do not stand in line with the side of the propeller.

+ Make engine adjustments from behind the propeller only.Do not reach around the spinning propeler.

SAFETY PRECAUTION.

REPLACEMENT LARGE PARTS

B. B.

G. D.

A. Cowling.

B. Wing panel(Right&Left).

C. Fuselage.

D. Horizontal stabilizer. G. Decal sheet.

E. Rudder

F. Aluminium wing dihedral brace.

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

1) Install the rubber grommets and brass

eyelets onto the aileron servos.

REPLACEMENT SMALL PARTS

3. Wheels.

2. Wheel pants.

6.Ply wood of Vertical stabilizer.

4. Nose gear set.

11. Spinner.

1. Aluminium landing gear(Right& Left).

7. Fuel Tank.

8. Tie wrap

10.Plastic parts bottom of Fuselage

5. Plastic parts for elevator and rudder

pushrod.

9. Electric motor ply of wood .

1. 1.

3. 3.

10.

11.

a. b. c.

3x 15mm

I. AILERON.

1.INSTALLING THE AILERON SERVOS.

C/A glue

Aileron

Flap. Aileron

Bottom side

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

C/A glue

2) Using a modeling knife, remove the cov-

ering at possition show below.

C/A glue

Flap. C/A glue

C/A glue

Remove

covering

Bottom of wing.

C/A glue

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

Install aileron control horn as same

as picture below.

Secure.

thread

Electric wire

2x10mm.

INSTALLING THE AILERON

CONTROL HORN.

4. 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.

3. 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.

5. 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.

Servo tray.

Aileron

control horn

Secure.

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

Repeat the procedure for the other wing

half.

Repeat the procedure for the other wing

half.

Installing the aileron linkages as pictures

below.

50 mm

INSTALLING THE AILERON

LINKAGES.

Control horn.

A+B PLUS glue

A+B Epoxy

PLUS glue

1.INSTALLING THE FLAP SERVOS.

II. FLAP

Electric wire

2x10mm.

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

PARTSREQUIRED

 1) Assemble and mounting the wheel pants

as shown in the following pictures.

Bottom side

2.INSTALLING THE FLAP CONTROL HORN.

A+B Epoxy

PLUS glue

Installing the aileron linkages as pictures

below.

3.INSTALLING THE FLAP LINKAGES.

50mm

Secure

Flap control

horn

Flap

control horn

INSTALLING THE MAIN LANDING GEAR.

Drill 5.2mm

hole

5x40 mm.

Mark point

5x40mm. 5x40mm.

3x15mm. 3x15mm.

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

2) A drop of C/A glue on the wheel collar

screws will help keep them from coming lose

during operation.

Remove wood

THERE ARE TWO OPTIONS:

1. ELECTRIC MOTOR

2. ENGINE MOUNT.

1. OPTION 1: ELECTRIC MOTOR

Secure.

3 x 15 mm.

Secure.

Repeat the process for the other wheel.

INSTALLING THE ENGINE MOUNT.

INSTALLING ELECTRIC MOTOR.

3x 15mm

GROB G-115E TUTOR T1 - Item code: BH123 . Instruction Manual

3x 15mm

secure

3x 15mm

Drill a hole

3mm diameter

Drill a hole

3mm diameter

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