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LF-107 LUNAK 

- Item code: BH145

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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.

            SAFETY PRECAUTION.

 + 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.

Summary of Contents for BH 145

Page 1: ...g 79 g dm2 Wing type Naca Airfoil ing t Parts listing required not included Radio 07 08 channels Servo 09 10 standard high torque servos Electric motor BOOST 180BL Motor Battery 12S LIPO 44 4V 6 000mA...

Page 2: ...ape T pins Thread lock Paper towels Some more parts HARDWARE PACK Landing gear To avoid scratching your new airplane do not unwrap the pieces until they are needed for assembly Cover your workbench wi...

Page 3: ...sily 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 t...

Page 4: ...stabilizer D1 D2 E Vertical stabilizer F1 Aluminium tube wing dihedral brace G Decal sheet K Pilot F2 Aluminium tube wing Fuselage B Right Wing panel C1 C2 F3 Aluminium tube wing F4 Aluminium tube win...

Page 5: ...low 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...

Page 6: ...tures below INSTALLING THE AILERON LINKAGES 5 Instal servo tray with aileron servo into the wing as same as picture below 3x12mm Secure Aileron control horn INSTALLING THE AILERON CONTROL HORN Repeat...

Page 7: ...7 LF 107 LUNAK Item code BH145 Instruction Manual Secure Secure Drill a hole 2 5mm diameter 3x15mm 3x12mm Secure Bottom side 3x12mm...

Page 8: ...8 LF 107 LUNAK Item code BH145 Instruction Manual Secure II AILERON 2 1 INSTALLING THE AILERON SERVO 2 Repeat the procedure for the other wing half Top side Bottom side Bottom side Flap Aileron 4x12mm...

Page 9: ...K Item code BH145 Instruction Manual Aileron Electric wire servo tray Secure 3x10mm A B Epoxy PLUS glue Install flap control horn as same as picture below Control horn aileron 2 INSTALLING THE AILERON...

Page 10: ...145 Instruction Manual Installing the flap linkages as pictures below 3 INSTALLING THE AILERON LINKAGES 75 mm 3x15mm Secure Secure 3x15mm Control aileron Bottom side II FLAP 1 INSTALLING THE FLAP SERV...

Page 11: ...all flap control horn as same as picture below Control horn Flap 2 INSTALLING THE FLAP CONTROL HORN A B Epoxy glue Installing the flap linkages as pictures below 3 INSTALLING THE FLAP LINKAGES 75 mm 3...

Page 12: ...12 LF 107 LUNAK Item code BH145 Instruction Manual 3x15mm Secure Secure INSTALLING THE FUSELAGE Left Bottom side Bottom side See pictures below 25mm 650mm Flap Flap Right Bottom side Aileron...

Page 13: ...13 LF 107 LUNAK Item code BH145 Instruction Manual See pictures below Not included Wing bolt INSTALLING ELECTRIC MOTOR AND ESC 6x45 mm Top side Secure Secure...

Page 14: ...14 LF 107 LUNAK Item code BH145 Instruction Manual Front view Open 4x20mm 4x20mm 4x20mm S e c u r e 4x20mm Drill a hole 5 2mm diameter...

Page 15: ...15 LF 107 LUNAK Item code BH145 Instruction Manual Secure Front view 3x12 mm Secure Mottor Rotor shaft ESC Bettery Battery...

Page 16: ...llets into the elevator servo Test fit the servo into the servo tray 2 Mount the servo to the tray using the mounting screws provided with your radio system HORIZONTAL STABILIZER ELEVATOR SERVO INSTAL...

Page 17: ...rol horn Please see pic tures below ELEVATOR CONTROL HORN IN STALLATION Control horn of elevator Secure Repeat the procedure for the other hori zontal stabilizer half Elevator control horn A B Epoxy P...

Page 18: ...18 LF 107 LUNAK Item code BH145 Instruction Manual Secure E l e v a t o r pushrod Bottom side Left side Secure E l e v a t o r pushrod R i g h t side Secure 470mm 12mm 4x12mm 3x15mm...

Page 19: ...19 LF 107 LUNAK Item code BH145 Instruction Manual Right side Left side Secure Bottom side...

Page 20: ...e BH145 Instruction Manual VERTICAL INSTALLATION See picture below Rudder servo install as same as method of elevator servo See picture below RUDDER INSTALLATION R u d d e r servo 12mm 195 mm 4x12mm S...

Page 21: ...21 LF 107 LUNAK Item code BH145 Instruction Manual Rudder A l u minium Push Top side Secure Aluminium...

Page 22: ...ual Top side Top side A B Epoxy PLUS glue Bottom side Rudder control horn install as same as the way of aileron control horn Please see pic tures below Control horn of Rudder RUDDER CONTROL HORN INSTA...

Page 23: ...F 107 LUNAK Item code BH145 Instruction Manual Secure 3x15mm Bottom side Rudder cable Rudder cable 1 Rudder push pull system install as same as picture below RUDDER CABLE INSTALLATION Secure 3x12mm Se...

Page 24: ...extension into the receiver to make plugging in the aileron servo lead easier when you are installing the wing Plug the battery pack lead into the switch 2 Wrap the receiver and battery pack in the p...

Page 25: ...to exit Tie wrap Test fit the aluminium tube dihedral brace into each wing haft The brace should slide in easily If not use 220 grit sand around the edges and ends of the brace until it fits prop erly...

Page 26: ...de BH145 Instruction Manual 3 Insert two wing panels as pictures below See picture wing attach to fuselage Right wing Secure Wing bolt Secure Wing bolt WING JOINING 6 x 75mm Wing bolt C1 Right side 19...

Page 27: ...27 LF 107 LUNAK Item code BH145 Instruction Manual Secure Secure C2 Top side B1 B2 Left side B2 B1 B1 Top side Right side C1 C2 4x15mm Bottom side...

Page 28: ...shifting the balance up to 10mm forward or back to change the flying characteristics Mov ing the balance forward may improve the smoothness and arrow like tracking but it may then require more speed f...

Page 29: ...e sure the control surfaces move in the correct directions CONTROL THROWS 1 Completely charge your transmitter and receiver batteries before your first day of fly ing 2 Check every bolt and every glue...

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