instruction manual book - blackhorsemodel...instruction manual book specification wingspan : 1,700...

Instruction Manual 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.

ITEM CODE:BH 112.

2

WESTLAND WYVERN - Item code:BH112 INSTRUCTION MANUAL.

This instruction manual is designed to help you build a great flying aeroplane. Please read thismanual thoroughly before starting assembly of your WESTLAND WYVERN Use the parts listingbelow to identify all parts.

WARNING.

Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it iscapable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOUASSUME ALL RISK & RESPONSIBILITY.

If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C supplierand join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of trainingprocedures designed to help the new pilot on his way to successful R/C flight. They will also be ableto 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.

HARDWARE PACK

COWLING.Landing gear.....

To avoid scratching your new airplane, do notunwrap the pieces until they are needed forassembly. Cover your workbench with an oldtowel or brown paper, both to protect the air-craft and to protect the table. Keep a couple ofjars or bowls handy to hold the small parts af-ter you open the bag.

Please trial fit all the parts. Make sure you havethe correct parts and that they fit and arealigned properly before gluing! This will assureproper assembly.WESTLAND WYVERN ARF ishand made from natural materials, every planeis unique and minor adjustments may have tobe made. However, you should find the fit su-perior and assembly simple.The painted and plastic parts used in this kitare fuel proof. However, they are not tolerantof many harsh chemicals including the follow-ing: paint thinner, C/A glue accelerator, C/A gluedebonder and acetone. Do not let these chemi-cals come in contact with the colors on thecovering and the plastic parts.

PARTS LISTING.

FUSELAGE ASSEMBLY (1) Fuselage.

WING ASSEMBLY

(1) Right wing half with pre-installedaileron.

(1) Left wing half with pre-installedaileron.

Tail section assembly

(1) Vertical stabilizer with pre-installed rudder.

(1) Horizontal stabilizer with pre-installed elevator halves.

SUGGESTION.

NOTE.

3


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 helpand support. If you attempt to operate the model without knowing what you are doing you couldeasily injure yourself or somebody else. Please keep your safety and well-being in mind at alltimes.Important: before you start constructionEven if you have already built a large number of RC models please read right through theseinstructions and check all the kit components against the parts list. We have taken great trouble tokeep construction as simple as possible, without making any compromises in the area of safety.Note regarding the film coveringMinor creases or bubbles may develop in the film covering due to major fluctuations in weatherconditions (temperature, humidity etc.); in rare cases you may even find a slight warp in acomponent. These minor faults are in the nature of film-covered built-up wooden structures, andcan 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, thefilm 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 whichyou have to carry out is important and must be done carefully. The model will only be strong and flywell 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 preventthem 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 spinningpropeller.

SAFETY PRECAUTION.

B2

E

F

D2

C

D1

B1

AG. Decal sheet

G.

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

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

E. Rudder.

F. Aluminium wing dihedral brace.

4


1) Install the rubber grommets and brasseyelets onto the aileron servos.

2. Door mounting wheel.

1.Retract main gear.

REPLACEMENT SMALL PARTS

12. Spinner.

7. Tail gear set.

6.Plastic parts of Fuselage

4. Drop tank

5. Wheels.

11. Fuel tank.

8.connector.

3. Drop.

9. Tie wrap.

10. Plastic parts for pushrod.

13. Plastic part for tail gear.

2.

10.

1.

3 x 15mm.

8.

7.

6.5.

4.

3.

11.

12.

3 x 15mm.

9.

13.

3 x 15mm.

3x12mm.

Aileron

Bottom side

1.INSTALLING THE AILERON SERVOS.

I. AILERON.

5


C/A glue.

C/A glue.

C/A glue.

2) Using the thread as a guide and usingmasking tape, tape the servo lead to the endof the thread: carefully pull the thread out.When you have pulled the servo lead out, re-move the masking tape and the servo leadfrom the thread.

3) Drill 1,6mm pilot holes through the blockof wood for each of the four mounting screwsprovided with the servo.

4. Instal servo tray with aileron servo intothe wing as same as picture below.

Electric wire

Secure.

Thread

aileron control horn

C/A glue.

3mm x 25mm.

2.INSTALLING THE AILERON CONTROL HORN.

6


Repeat the procedure for the other winghalf.

Installing the aileron linkages as pictures below.

Control hornof the aileron

2x8 mm. 60 mm

2 x8mm

3.INSTALLING THE AILERONLINKAGES.

C/A glue.

Secure

Secure.

II. FLAP.

1.INSTALLING THE FLAP CONTROL.

Flap

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2. INSTALLING THE FLAP SERVOS

C/A glue.

C/A glue.

C/A glue.

C/A glue.

Control horn ofthe flap.

3mm x 15mm.

Secure.

8



Secure.

Electricwire

Installing the aileron linkages as pictures below.

INSTALLING THE FLAPLINKAGES.

2x8 mm. 60 mm

secure

2 x8mm

INSTALLING AIR RETRACTABLELANDING GEAR.

1. 1.

2.

5.

3 x 15mm. 3 x 15mm.

9


Mark point.

Drill 2mm hole.

3x15mm

Secure.

5 X 35mm

10


Drill a hole3.2mm diameter




Secure.

Secure.

3 x 16mm

Lock.

Secure.

11


Lock .

Lock .

Lock .

Connector.

Connector.

12


3x12mm

Secure

3x12mm.

Epoxy glue.

13



Secure.

3x12mm

3x12mm

Secure.

Bottom side.

Secure

INSTALLING THE ENGINE MOUNT.

See pictures below:

Drill a hole6mm diameter

14


INSTALLING THE ENGINE.

Front view.

ThrottlePushrod.

See pictures below:

Secure

Secure

5x80mm

60mm

Throttle pushrod.

15


1. Install one adjustable metal connectorthrough the third hole out from the center ofone servo arm, enlarge the hole in the servoarm using a 2mm drill bit to accommodate theservo connector. Remove the excess mate-rial from the arm.

After installing the adjustable metal con-nector apply a small drop of thin C/A tothe bottom nut. This will prevent the con-nector from loosening during flight.

INSTALLING THE THROTTLE - PUSHROD

Secure.

INSTALLING THE STOPPER ASSEMBLY

FUEL TANK.

3) Carefully bend the second nylon tubeup at a 45 degree angle (using a cigarettelighter). This tube will be the vent tube to themuffler.

4) Carefully bend the third nylon tube downat a 45 degree angle (using a cigarette lighter).This tube will be vent tube to the fueling valve.

1) The stopper has been pre-assembledat the factory.

2) Using a modeling knife, cut one lengthof silicon fuel line (the length of silicon fuel lineis calculated by how the weighted clunk shouldrest about 8mm away from the rear of the tankand move freely inside the tank). Connect oneend of the line to the weighted clunk and theother end to the nylon pick up tube in the stop-per.

Throttle servo.

Thrott leservo.

Connestor.

Cut.

Throttle pushrod.

16


Secure

When the stopper assembly is installed in thetank, the top of the vent tube should rest justbelow the top surface of the tank. It should nottouch the top of the tank.

7) Using a modeling knife, cut 3 lengths offuel line 150mm long. Connect 2 lines to the 2vent tubes and 1 line to the fuel pickup tube inthe stopper.

8) Feed three lines through the fuel tankcompartment and through the pre-drilled holein the firewall. Pull the lines out from behindthe engine, while guiding the fuel tank intoplace. Push the fuel tank as far forward aspossible, the front of the tank should just abouttouch the back of the firewall.

Vent tubeFuel pickup tube

Fuel fill tube

5) Test fit the stopper assembly into thetank. It may be necessary to remove some ofthe flashing around the tank opening usinga modeling knife. If flashing is present, makesure none of it falls into the tank.

6) When satisfied with the alignment ofthe stopper assembly tighten the 3mm x 20mmmachine screw until the rubber stopper ex-pands and seals the tank opening. Do not overtighten the assembly as this could cause thetank to split.

Do not secure the tank into place perma-nently until after balancing the airplane. Youmay need to remove the tank to mount thebattery in the fuel tank compartment

Blow through one of the lines to ensurethe fuel lines have not become kinked insidethe fuel tank compartment. Air should flowthrough easily. 9) To secure the fuel tank in place, apply abead of silicon sealer to the forward area ofthe tank, where it exits the fuselage behind theengine mounting box and to the rear of the tankat the forward bulkhead.

(Tygon gas tubing not included)

17


Fuel Tank

COWLING.

1. Slide the fiberglass cowl over the en-gine and line up the back edge of the cowl withthe marks you made on the fuselage.

Top side.

Bottom side.

Tie wrap.

Tie wrap.

Trim and cut

2. While keeping the back edge of thecowl flush with the marks, align the front ofthe cowl with the crankshaft of the engine. Thefront of the cowl should be positioned so thecrankshaft is in nearly the middle of the cowlopening. Hold the cowl firmly in place usingpieces of masking tape.

3. Slide the cowl back over the engineand secure it in place using four wood screws.See picture below.

4. Install the muffler and muffler extensiononto the engine and make the cutout in thecowl for muffler clearance. Connect the fueland pressure lines to the carburetor, mufflerand fuel filler valve.

18


INSTALLING THE SPINNER.

Install the spinner backplate, propeller andspinner cone. The spinner cone is held inplace using two 3mm x 8mm machine screws.

Secure

Drill 2.5mmhole.

3x12mm

Secure

Front view.

Left side.

19


Secure

Servo

elevator.

See pictures below:

HORIZONTAL STABILIZER.

1. Install the rubber grommets and brasscollets into the elevator servo. Test fit the servointo the servo tray.

2. Mount the servo to the tray using themounting screws provided with your radio sys-tem.

ServoElevator.

ELEVATOR INSTALLATION.

SERVO INSTALLATION.

C/A glue.

C/A glue.

Bottom side.

20


Epoxy glue.

C/A glue.

145 mm

9mm

C/A glue.

21


Bottom side.

Epoxy glue.

C/A glue.

Mark line.

R e m o v ecovering

22


Elevator control horn install as same as theway of aileron control horn. Please see pic-tures below.

ELEVATOR CONTROL HORNINSTALLATION.

3mm x 25mm.

Secure.

Elevatorcontrol horn.

ELEVATOR PUSHROD HORNINSTALLATION.

Bottom side.

Epoxy glue.

C/A glue.

Secure.

2 x 8mm

2 x 8mm

Epoxy glue.

23


Plastic parts of elevatorpushrod.

Cut.

Rudder servo install as same as method ofelevator servo. See picture below:

VERTICAL INSTALLATION.

C/A glue.

Elevatorpushrod

Elevatorpushrod

Bottom side.

Secu

re.

Bottom side R

udde

r Ser

vo.

Rudder Servo.

Bottom side.

24


Secure.

Rudder control horn install as same as theway of aileron control horn. Please see pic-tures below.

RUDDER CONTROL HORNINSTALLATION.

25


1. Rudder pushrod install as same asthe way of aileron control horn.

2. Rudder push - pull system install assame as picture below.

RUDDER PUSHROD INSTALLATION.

Top side.

Secure.

2 x 8mm

Epoxy glue.

C/A glue.

Secure.

26


145 mm

MOUNTING THE TAIL WHEELBRACKET.

1. Set the tail wheel assembly in placeon the plywood plate. The pivot point of thetail wheel wire should be even with the rud-der hinge line and the tail wheel bracketshould be centered on the plywood plate.

3x15mm

2. Using a pen, mark the locations of thetwo mounting screws. Remove the tail wheelbracket and drill 1mm pilot holes at the loca-tions marked.

3. Secure the tail wheel bracket in placeusing four 3mm x 15mm wood screws. Becareful not to overtighten the screws.

R e m o v ecovering

Secure.

C/A glue.

Bottom side.

Rudder pushrod.

Rudder pushrod.

27


E p o x yglue.

Removecovering.

Plastic part for tail gear

Mark line.

Secure.

Bottom side.

Tail gearpushrod.

Tail gear pushrod.

28


C/A glue.

1) Cut out the switch hole using a modelingknife. Use a 2mm drill bit and drill out the twomounting holes through the fuselage side.

2) Secure the switch in place using thetwo machine screws provided with the radiosystem.

INSTALLING THE SWITCH.

C/A glue.

Tail gear pushrod.

Bottom side.

Rudderpushrod.

Tail gearpushrod.

Switch .

S w i t c hreceiver.

Switch engine.

C/A glue.

29


Plastic parts of Fuselage

C/A glue.

Receiver.

Epoxy glue.

1. Plug the servo leads and the switchlead into the receiver. You may want to plugan aileron extension into the receiver to makeplugging in the aileron servo lead easierwhen you are installing the wing . Plug thebattery pack lead into the switch.

2. Wrap the receiver and battery pack inthe protective foam to protect them from vi-bration. Use a rubber band or masking tape tohold the foam in place.

INSTALLING THE RECEIVER AND BATTERY.

Do not permanently secure the receiver andbattery until after balancing the model.

4. Using a 2mm drill bit, drill a hole throughthe side of the fuselage, near the receiver, forthe antenna to exit.

Tie wrap.

Battery.

30


*** Test fit the aluminium tube dihedral braceinto each wing haft. The brace should slide ineasily. If not, use 220 grit sand around theedges and ends of the brace until it fits prop-erly.

Locate the aluminium wing dihedral brace.

553mm

25mm

WING ATTACHMENT.

Aluminium brace.

See picture wing attach to fuselage.

Right wing.

Wing bolt.

Top side.

Secure.

Left wing.

Wing bolt.

31


1) We highly recommend setting up aplane using the control throws listed.

2) The control throws should be meas-ured at the widest point of each control sur-face.

3) Check to be sure the control surfacesmove in the correct directions.

Ailerons : 20mm up 20mm down.

Flap : 35mm down.

Elevator : 15mm up 15mm down.

Rudder : 30mm right 30mm left.

CONTROL THROWS.

1) Completely charge your transmitter andreceiver batteries before your first day of fly-ing.

2) Check every bolt and every glue joint inyour plane to ensure that everything is tightand well bonded.

3) Double check the balance of theairplane.

4) Check the control surface.

5) Check the receiver antenna . It shouldbe fully extended and not coiled up inside thefuselage.

6) Properly balance the propeller.

We wish you many safe and enjoyableflights with your WESTLAND WYVERN

PRE-FLIGHT CHECK.

your fingers on the masking tape and care-fully lift the plane .

1) It is critical that your airplane be bal-anced correctly. Improper balance will causeyour plane to lose control and crash.THE CENTER OF GRAVITY IS LOCATED120MM BACK FROM THE LEADING EDGEOF THE WING.

2) Mount the wing to the fuselage. Using acouple of pieces of masking tape, place themon the top side of the wing 120 mm back fromthe leading edge, at the fuselage sides.3. Turn the airplane upside down. Place

Accurately mark the balance point on the topof the wing on both sides of the fuselage. Thebalance point is located 120mm back from theleading edge. This is the balance point at whichyour model should balance for your first flights.Later, you may wish to experiment by shiftingthe balance up to 10mm forward or back tochange the flying characteristics. Moving thebalance forward may improve the smooth-ness and arrow- like tracking, but it may thenrequire more speed for take off and make itmore difficult to slow down for landing. Movingthe balance aft makes the model more agilewith a lighter and snappier ”feel”. In any case,please start at the location we recommend .

With the wing attached to the fuselage, allparts of the model installed ( ready to fly), andempty fuel tanks, hold the model at themarked balance point with the stabilizer level.

Lift the model. If the tail drops when youlift, the model is “tail heavy” and you must addweigh* to the nose. If the nose drops, it is “noseheavy” and you must add weight* to the tail tobalance.

BALANCING.

*If possible, first attempt to balance the modelby changing the position of the receiver bat-tery and receiver. If you are unable to obtaingood balance by doing so, then it will be nec-essary to add weight to the nose or tail toachieve the proper balance point.

Flap control

Aileron control

Elevator control

Rudder control

20mm20mm

15mm

15mm

35mm

30mm30mm

instruction manual book - blackhorsemodel...instruction manual book specification wingspan : 1,700...

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