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WESTLAND WYVERN 

- Item code:BH112

                 

 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.

 REPLACEMENT LARGE PARTS

 + 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
propeller.

            SAFETY PRECAUTION.

 B2

E

 F

D2

 C

D1

 B1

 A

G. Decal sheet

G.

A.Cowling.
B.Wing panel (B1,B2).

C. Fuselage.
D. Horizontal stabilizer(D1,D2)

E. Rudder.

F.  Aluminium wing
    dihedral brace.

Summary of Contents for WESTLAND WYVERN BH112

Page 1: ...ual book SPECIFICATION Wingspan 1 700 mm 66 93 in Length 1 540 mm 60 63 in Weight 4 9 kg 10 78 Lbs Radio 08channels Servo 8 Servos 2 servos Retract HITEC HS 75BB Engine 20 22 CC Gas Made in Vietnam IT...

Page 2: ...e 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 workben...

Page 3: ...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...

Page 4: ...eron servos 2 Door mounting wheel 1 Retract main gear REPLACEMENT SMALL PARTS 11 Spinner 7 Tail gear set 6 Plastic parts of Fuselage 4 Drop tank 5 Wheels 10 Fuel tank 3 Drop 9 Tie wrap 8 Plastic part...

Page 5: ...ead from the thread 3 Drill 1 6mm pilot holes through the block of wood for each of the four mounting screws provided with the servo 4 Instal servo tray with aileron servo into the wing as same as pic...

Page 6: ...112 INSTRUCTION MANUAL Repeat the procedure for the other wing half Installing the aileron linkages as pictures below 3 INSTALLING THE AILERON LINKAGES Control horn of the aileron M2 50 mm Flap II FLA...

Page 7: ...12 INSTRUCTION MANUAL Secure Control horn of Flap 2 INSTALLING THE FLAP CONTROL HORN A B Epoxy PLUS glue Control horn of the flap Installing the aileron linkages as pictures below INSTALLING THE FLAP...

Page 8: ...RN Item code BH112 INSTRUCTION MANUAL Repeat the procedure for the other wing half INSTALLING AIR RETRACTABLE LANDING GEAR Mark point Drill 2m m hole 3x15mm Secure Bottom side 2a 2b 1 5 3 x 15mm 3 x 1...

Page 9: ...9 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL 5 X 35mm 3 x 16mm Lock Secure Secure Secure...

Page 10: ...10 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL Drill a hole 3 2mm diameter Drill a hole 3 2mm diameter Drill a hole 3 2mm diameter Lock Lock Lock Drill a hole 3 2mm diameter...

Page 11: ...11 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL Connector Secure Connector...

Page 12: ...12 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL 3x12mm 3x12mm Secure 3x12mm Epoxy glue 3x12mm...

Page 13: ...RUCTION MANUAL Repeat the procedure for the other wing half Secure Secure INSTALLING THE ENGINE MOUNT See pictures below Bottom side Drill a hole 6mm diameter See pictures below INSTALLING THE ENGINE...

Page 14: ...e 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...

Page 15: ...stopper has been pre assembled at the factory 2 Using a modeling knife cut one length of silicon fuel line the length of silicon fuel line is calculated by how the weighted clunk should rest about 8m...

Page 16: ...g using a modeling knife If flashing is present make sure none of it falls into the tank 6 When satisfied with the alignment of the stopper assembly tighten the 3mm x 20mm machine screw until the rubb...

Page 17: ...ont of the cowl with the crankshaft of the engine 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...

Page 18: ...112 INSTRUCTION MANUAL INSTALLING THE SPINNER Install the spinner backplate propeller and spinner cone The spinner cone is held in place using two 3mm x 8mm machine screws Secure Drill 2 5mm hole 3x12...

Page 19: ...ts and brass collets 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 sys tem ELEVATOR INSTALLATION SERVO...

Page 20: ...20 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL Assemble then apply drops of thin C A to center of hinge on both sides 145 mm 9mm Epoxy glue...

Page 21: ...21 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL Mark line R e m o v e covering Bottom side Epoxy glue C A glue...

Page 22: ...C A glue Epoxy glue Elevator control horn install as same as the way of aileron control horn Please see pic tures below ELEVATOR CONTROL HORN INSTALLATION Control horn of elevator Elevator control ho...

Page 23: ...Bottom side Elevator pushrod Elevator pushrod Rudder servo install as same as method of elevator servo See picture below RUDDER SERVO INSTALLATION bend 90 degree Rudder Servo Cut Bottom side Elevator...

Page 24: ...ND WYVERN Item code BH112 INSTRUCTION MANUAL Rudder control horn install as same as the way of aileron control horn Please see pic tures below RUDDER CONTROL HORN INSTALLATION Rudder servo A B EPOXY P...

Page 25: ...25 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL 1 Rudder pushrod install as same as the way of aileron control horn RUDDER PUSHROD INSTALLATION Epoxy glue Secure Bottom side Top side C A glue...

Page 26: ...26 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL Cut Rudder pushrod bend 90 degree cut off Rudder pushrod...

Page 27: ...n with the rud der hinge line and the tail wheel bracket should be centered on the plywood plate 3x15mm 2 Using a pen mark the locations of the two mounting screws Remove the tail wheel bracket and dr...

Page 28: ...28 WESTLAND WYVERN Item code BH112 INSTRUCTION MANUAL Plastic part for tail gear Tail gear pushrod 140mm C A glue Tail gear pushrod Mark line Remove covering Tail gear pushrod...

Page 29: ...se 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 INSTALLING THE SWITCH Switch...

Page 30: ...er when you are installing the wing Plug the battery pack lead into the switch 2 Wrap the receiver and battery pack in the protective foam to protect them from vi bration Use a rubber band or masking...

Page 31: ...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 Locate the aluminium wing dihedral brace 553mm 25mm WING ATTACHMENT A...

Page 32: ...the leading edge at the fuselage sides 3 Turn the airplane upside down Place Accurately mark the balance point on the top of the wing on both sides of the fuselage The balance point is located 120mm b...

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