instruction manual book - ripmax · specification instruction manual book wingspan : 1,400 mm 55.12...

SPECIFICATION

Instruction Manual book

Wingspan : 1,400 mm 55.12 in. Length : 1,350 mm 53.15 in. Weight : 3.7 kg 8.14 Lbs. Radio : 08-09 channels. Servo : 08-09 servos. EDF : Turingy SK3 Fandrive 3659 -1900kv(90mm) Mercury Alloy 12 Blade 90mm 1900kv EDF Unit(6s).

Made in Vietnam.

Item code:BH133

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VIPER JET MKII - Item code: BH133 . INSTRUCTION MANUAL

This instruction manual is designed to help you build a great flying aeroplane. Please read thismanual thoroughly before starting assembly of your Viper Jet MKII. Use the parts listing below toidentify 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

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.Viper Jet MKII ARF is handmade from natural materials, every plane isunique 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.

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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 covering

Minor 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.

+ 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.

SAFETY PRECAUTION.

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REPLACEMENT LARGE PARTS

D2.Carbon tube horizontal stabilizer.B. Wing panel.

A. Fuselage.

C.Horizontal stabilizer.

REPLACEMENT SMALL PARTS

2.Oleo struts landing gear.

1.Oleo strut nose gear.

5.Plywood of nose gear

6.Plastic parts of bottom tail fuselage.

B.

A.

B.

D 1.

C.C.

D 2.

3.Plywood of vertical stabilizer

4.Plastic part of tail fuselage.

2.

5.

4.

6.

1.

3.

G.

G. Decal sheet

D1. Carbon tube wing

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

2. Using a modeling knife, remove the cov-ering servo tray.

4. Drill 1,5mm pilot holes through the blockof wood for each of the four mounting screwsprovided with the servo. Install servo into ai-leron servo tray as same as picture below.

Bottom side

Aileron

Thread

Electric wire

3) 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.

Secure.

Servo tray.

servo tray.

I. AILERON.

1.INSTALLING THE AILERON SERVOS.

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Aileron control horn

Repeat the procedure for the other winghalf.

A+B EpoxyPLUS glue

A B

INSTALLING THE AILERON CONTROL HORN.

Installing the aileron linkages as pictures below.

INSTALLING THE AILERONLINKAGES.



2x10mm.

Secure

A+B EpoxyPLUS glue

Control hornthe aileron.

Aileron.

M2 lock nutM2

47 mm

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II. FLAP SERVO.

1.INSTALLING THE FLAP SERVOS.

Electric wire

Secure.

Flap control horn

2.INSTALLING THE FLAP CONTROL HORN.

A+B EpoxyPLUS glue

Installing the flap linkages as pictures below.

3. INSTALLING THE FLAPLINKAGES.

Flap controlhorn.

2x10mm.

Flap.

M2 lock nutM2

47 mm

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PARTS REQUIRED

Bottom side.

Aileron.Flap

Secure.

3x15mm.

3x15mm.

3x15mm.Electric retract(not included)

INSTALLING OLEO STRUTS LANDING GEAR.

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Secure.

Secure.

Bottom side.

See pictures below:

Repeat the procedure for the other gear.

INSTALLING ELECTRIC EDF-90MM.

(Not included)

Cut & trim a rectangle 4x8mm throughplastic for mounting of electric wire leadout.

4 x 8 mm

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Open

3x 15mm

Secure.

Secure.

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See picture below.

INSTALLING THE ELEVATOR SERVOS.

ElevatorServo

2x10mm.

Secure.

Bottom side.

Repeat the procedure for theother elevator half.

.Plastic parts of tail fuselage.

A+B EpoxyPLUS glue

A+B EpoxyPLUS glue

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

Elevator control horn.

Elevator pushrod install as same as the wayof aileron pushrod.

Elevatorcontrol horn.

A+B EpoxyPLUS glue

ELEVATOR CONTROL HORN INSTALLATION.

E leva to rpushrod

35 mm

Bottom side.

350 mm

Carbon tube 8mm

ELEVATOR PUSHROD INSTALLATION.

HORIZONTAL STABILIZER INSTALLATION.

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Push.

E p o x yglue.

C/A glue.

Epoxy glue.

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

servo tray.

Rudder servo

servo wire.

2x10mm.

Top side.

C/A glue.

Bottom side.

VERTICAL STABILIZER INSTALLA-TION.

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Secure.

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

Control horn of Rudder.

RUDDER CONTROL HORN INSTALLA-TION.

Control horn Rudder.

Rudderpushrod

Rudder pushrod

RUDDER PUSHROD INSTALLATION. Rudder pushrod install as same as the wayof aileron pushrod.

35mm.

ESC

INSTALLING ESC.

3x 12mm

A+B EpoxyPLUS glue

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Secure.

3x 15mm

See picture below:

wire cable.

wire cable.

INSTALLING SERVO NOSE GEAR.

Servonose gear

See picture below:

Secure.

INSTALLING OLEO STRUT NOSE GEAR.

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Ply wood nose gear.

C/A glue.

3. Position the battery pack and receiveris as picture below.

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

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.

Tie wrap.

UBEC

Battery of receiver.

Servonose gear

Nose cable wire.

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INSTALLING THE FUSELAGE TOP HATCH.

Battery ofEDF.

receiver

ESC

Push.

Locate the carbon tube wing dihedral brace.

480mm

Carbon 12mm tube

WING ATTACHMENT.

C/A glue.

Secure.

Bottom side.

Right wing.

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Secure. Left wing.

Left wing.

Secure.

Plastic parts bottom tail fuselage.

Plywood of vertical stabilizer.

A+B EpoxyPLUS glue

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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 LOCATED 141 MM 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 141 mm back fromthe leading edge, at the fuselage sides.

3. Turn the airplane upside down. Placeyour fingers on the masking tape and care-fully lift the plane .

Accurately mark the balance point on the topof the wing on both sides of the fuselage. Thebalance point is located 141 mm back fromthe leading edge. This is the balance point atwhich your model should balance for your firstflights. Later, you may wish to experiment byshifting the balance up to 10mm forward orback to change the flying characteristics. Mov-ing the balance forward may improve thesmoothness and arrow- like tracking, but it maythen require more speed for take off and makeit more difficult to slow down for landing. Mov-ing the 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.

*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.

BALANCING.

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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 enjoy-able flights with your Viper Jet MKII.

Ailerons : 10mm up 10 mm down

Flap : 30mm

Elevator : 12mm up 12mm down

Rudder : 15mm right 15mm left

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.

CONTROL THROWS.

Flap control

Aileron control

Elevator control

Rudder control

10mm 10mm

12mm

12mm

30mm

15mm

15mm

PRE-FLIGHT CHECK.

instruction manual book - ripmax · specification instruction manual book wingspan : 1,400 mm 55.12...

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