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L-39 ALBATROS  

Item code: BH141

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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.

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

+  Do not start the EDF if people are near.

Summary of Contents for L-39 Albatros BH141

Page 1: ...Parts listing required not included Radio 08 channels Servo 08 size 29 x 13 x 30 mm EDF DS51 AXI HDS 90mm 10 Blade Impeller Motor HET 700 68 1200KV Battery 2 Packs x 5 Cells LIPO 37V 5 000mAH 50c Or E...

Page 2: ...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 wi...

Page 3: ...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 c...

Page 4: ...cable nose gear 3 Plastic parts of tail fuselage 1 Oleo struts retracts 2 Oleo struts retract nose gear 4 Plywood of nose gear F Aluminium tube Horizontal stabilizer B Wing panel B1 B2 A Fuselage C Ho...

Page 5: ...ing 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 ser...

Page 6: ...eat the procedure for the other wing half 5 Instal servo tray with aileron servo into the wing as same as picture below Installing the aileron linkages as pictures below INSTALLING THEAILERON CONTROLH...

Page 7: ...II FLAP 1 INSTALLING THE FLAP SERVO 2x10mm Secure Electric wire Repeat the procedure for the other wing half Install flap control horn as same as picture below Control horn Flap 2 INSTALLING THE FLAP...

Page 8: ...low 3 INSTALLING THE FLAP LINKAGES A B Epoxy PLUS glue Control horn of the flap 60 mm M2 Repeat the procedure for the other wing half Bottom side Flap Aileron PARTS REQUIRED Electric retract not inclu...

Page 9: ...9 L 39 ALBATROS Item code BH141 Instruction Manual 3x15mm Secure Secure Repeat the procedure for the other gear 4x12mm Bottom side See pictures below Not included INSTALLING ELECTRIC EDF 90MM...

Page 10: ...10 L 39 ALBATROS Item code BH141 Instruction Manual Open Bottom side 3x 12mm Secure Plastic parts of tail fuselage...

Page 11: ...the servo into the servo tray 2 Mount the servo to the tray using the mounting screws provided with your radio system Horizontal stabilizer installation See picture below HORIZONTAL STABILIZER ELEVAT...

Page 12: ...ron control horn Please see pic tures below A B Epoxy PLUS glue ELEVATOR CONTROL HORN INSTALLATION Control horn of elevator Elevator pushrod install as same as the way of aileron pushrod 60 mm M2 ELEV...

Page 13: ...13 L 39 ALBATROS Item code BH141 Instruction Manual Left side Epoxy glue C A glue Left side Elevator pushrod Elevator pushrod Bottom side Top side C A glue Epoxy glue Right side...

Page 14: ...Rudder servo install as same as method of elevator servo See picture below Rudder servo 2x10mm Secure Rudder control horn install as same as the way of aileron control horn Please see pic tures below...

Page 15: ...ALBATROS Item code BH141 Instruction Manual RUDDER PUSHROD INSTALLATION Rudder pushrod install as same as the way of aileron pushrod 60mm Top side Rudder pushrod Epoxy glue C A glue Rudder pushrod To...

Page 16: ...Item code BH141 Instruction Manual Top side See picture below INSTALLING ELECTRIC NOSE GEAR RETRACT Only Including Oleo Strut Nose Gear Electric Not Included 3x15mm 3x10mm 2x8mm S e c u r e 2x8mm S e...

Page 17: ...17 L 39 ALBATROS Item code BH141 Instruction Manual wire cable Secure wire cable wire cable Open See picture below 3x15mm Servo nose gear INSTALLING SERVO NOSE GEAR...

Page 18: ...plugging in the aileron servo lead easier when you are installing the wing Plug the battery pack lead into the switch Ply wood of nose gear INSTALLINGTHEESC RECEIVERANDBATTERY Servo nose gear 2 Wrap...

Page 19: ...Pilot A B Epoxy PLus glue WING ATTACHMENT Top side 510mm 12 mm Aluminium tube 1 Locate the aluminium wing dihedral brace Test fit the aluminium tube dihedral brace into each wing haft The brace shoul...

Page 20: ...9 ALBATROS Item code BH141 Instruction Manual 3 Insert two wing panels as pictures below Left wing Right wing Bottom side Secure Secure Bottom side Bottom side 2 Attach the aluminium tube into the fus...

Page 21: ...int at which your model should balance for your first flights Later you may wish to experiment by shifting the balance up to 10mm forward or back to change the flying characteristics Moving the balanc...

Page 22: ...ver batteries before your first day of fly ing 2 Check every bolt and every glue joint in your plane to ensure that everything is tight and well bonded 3 Double check the balance of the airplane 4 Che...

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