Instruction Manual book - Pichler Modellbau · towel or brown paper, both to protect the air-craft...

SPECIFICATION Wingspan : 1.560 mm 61.42 in. Length : 1.360 mm 53.54 in. Weight : 3.2 kg 7.04 Lbs. Radio : 06 channels. Servo : 07 Servos+2 servos Retract (FUTABA,S3170G) Engine : 61 Cu.in 2 Stroke. 91 Cu.in 4 Stroke.

Instruction Manual book

Made in Vietnam.

Item code BH33.

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MUSTANG P51 - Item code: BH33 . Instruction Manual

This instruction manual is designed to help you build a great flying aeroplane. Please read thismanual thoroughly before starting assembly of your MUSTANG P51. 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

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. MUSTANG P51 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.

Some more parts........

Tail section assembly

(1) Vertical stabilizer with pre-installed rudder.

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

SUGGESTION.

NOTE.

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+ This is not a toy + Be sure that no other flyers are using yourradio frequency. + Do not smoke near fuel + Store fuel in a cool, dry place, away fromchildren and pets. + Wear safety glasses. +The glow plug clip must be securely attachedto the glow plug. + Do not flip the propeller with your fingers. + Keep loose clothing and wires away fromthe propeller. + Do not start the engine if people are near.Do not stand in line with the side of the propel-ler. + Make engine adjustments from behind thepropeller only. Do not reach around the spin-ning propeller.

SAFETY PRECAUTION.Caution: this model is not a toy!If you are a beginner to this type of poweredmodel, please ask an experienced model flyerfor help and support. If you attempt to operatethe model without knowing what you are doingyou could easily injure yourself or somebodyelse. Please keep your safety and well-beingin mind at all times.

Important: before you start constructionEven if you have already built a large numberof RC models please read right through theseinstructions and check all the kit componentsagainst the parts list. We have taken greattrouble to keep construction as simple aspossible, without making any compromisesin the area of safety.

Note regarding the film coveringMinor creases or bubbles may develop in thefilm covering due to major fluctuations inweather conditions (temperature, humidityetc.); in rare cases you may even find a slightwarp in a component. These minor faults arein the nature of film-covered built-up woodenstructures, and can easily be corrected usinga heat gun, as commonly used for modelling.Creases: Blow warm air over the area

and rub down with a softcloth.

Wing warp: Hold the panel twistedgently in the oppositedirection to the warp, andapply warm air to removethe creases from thecovering.

Caution! do not heat the film more than isabsolutely necessary. If the air or the iron istoo hot, the film may melt and holes may beformed.

This model is highly pre-fabricated and canbe built in a very short time. However, the workwhich you have to carry out is important andmust be done carefully. The model will onlybe strong and fly well if you complete yourtasks competently - so please work slowlyand accurately.

When self-tapping screws have to bescrewed into wood, apply a little whiteglue to prevent them shaking loose: justsquirt white glue into the hole and fit thescrew.

B. Wing panel.

C. Fuselage.

A. Cowling. D. Horizontal stabilizer.

F. Aluminium wing dihedralbrace.

E. Vertical stabilizer.

G.Decal sheet

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

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

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.

Bottom of wing

2) Using a modeling knife, remove the cov-ering at possition show below.

Temporary pin tokeep hinge centered.

Cut the coveringaway from the slot.

Bottom of wing.

Remove the covering.

Assemble then apply drops of thinC/A to center of hinge,on both sides.

INSTALLING THE AILERON SERVOS.

2. Wheels.

8.Tail gear set.

7. Fuel tank.

4. Spinner

3. Air retract main gear.

1.Door mounting wheel.

5. Plastic part of wing

6.Plastic - enginemount.

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Thread.

Servo wire.

Aileronservo tray

Remove covering

Aileron Control horn

INSTALLING THE AILERON CONTROL HORN.

Nilon control clasp.M3 lock nut.

3mm x 40mm.

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Con t ro lhorn

C/A glue

INSTALLING THE AILERONLINKAGES.

1. Working with the aileron linkage fornow, thread one clevis onto one of thethreaded wires.

2. Attach the clevis to the outer hole in thecontrol horn.

3. Plug the aileron servo into the receiverand center the servo. Install the servo arm ontothe servo. The servo arm should be perpen-dicular to the servo and point toward the mid-dle of the wing.

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6. Insert the 90 degree bend down through the hole in the servo arm. Install one nylon snap keeper over the wire to secure it to the arm. Install the servo arm retaining screw and remove the masking tape from the aileron.

4. Locate one nylon servo arm, and usingwire cutters,remove all but one of the arms.Using a 2mm drill bit, enlarge the third holeout from the center of the arm to accommo-date the aileron pushrod wire.

5. Using pliers, carefully make a 90 degreebend down at the mark made. Cut off the ex-cess wire, leaving about 4mm beyond thebend.

Bend and cut

M2 clevis.

M2 lock nut.Snap keeper.

Aileron servo

Aileron

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INSTALLING THE FLAP CONTROL HORN

Flap servo

INSTALLING THE FLAP SERVOS.

Remove covering

C/A glue

Flap control horn

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Top of wing

Aileron

Flap

Aileron servoFlap servo

Bottom of wing

INSTALLING RETRACTABLELANDING GEAR.

5x35mm.3x15mm.3x15mm.

3x6mm.3x4mm.

3x6mm.3x4mm.

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Mark pointand Drill ahole 2mm.

secure.

Secure5x35mm.

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Drill a hole 3mm

Drill a hole 3mm

Secure

Secure

Secure

3x6mm 3x8mm

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Secure

13


Secure

3x12mm

Cut

C/A glue

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See pictures below:

INSTALLING THE ENGINE MOUNT.

ENGINE MOUNT.

4 X 30mm

end of the line to the weighted clunk and theother end to the nylon pick up tube in the stop-per. 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.

INSTALLING THE ST OPPER ASSEMBLY

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 one

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.

FUEL TANK.

Drill a hole4mm diameter

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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.

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.

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.

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.

Vent tube Fuel pickup tube

Fuel fill tube

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

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Fuel tank

INSTALLING THE ENGINE.

Locate the long piece of wire used for thethrottle pushrod. One end of the wire has beenpre-bend in to a “Z” bend at the factory. This“Z” bend should be inserted into the throttlearm of the engine when the engine is fitted ontothe engine mount. Fit the engine to the enginemount using the screws provided.

120mm.

Mark point

4x 30mm

Pushrod wire.

Pushrod wire.

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Right side

Left side

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.

COWLING.

Right side

Trim and cut

Bottom side

Trim and cut

Right side

Bottom side

3 x 10mm

Machine screw

Right side

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Secure

Secure

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.

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.

Left side

Preview

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

INSTALLING THE SPINNER.

INSTALLING THE FUSELAGESERVOS.

Tie wrap.

Rudder pushrod

Elevator pushrod

Tie wrap.

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Horizontal stabilizer installation.

See picture below.

Recever

HORIZONTAL STABILIZER INSTALLATION.




1) Using a modeling knife, cut away thecovering from the fuselage for the stabilizerand remove it.

Remove covering.

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3) Mark the shape of the vertical on the leftand right sides onto the horizontal stabilizerusing a left-tip pen.

4) Remove the stabilizer. Using the linesyou just drew as a guide, carefully remove thecovering from between them using a modelingknife. When cutting through the covering to re-move it, cut with only enough pressure to onlycut through the covering it’s self. Cutting intothe balsa structure may weaken it. This couldlead to possible failure during flight.

2) Draw a center line onto the horizontalstabilizer. Then put the horizontal into the fu-selage.

Remove covering.

center line

Top elevator

Mark point

Bottom side.

Remove covering.

Bottom side

Check to mark sure the wing and stabi-lizer are paralell. If they are not, lightly sandthe opening in the fuselage for the stabilizeruntil the stabilizer is paralell to the wing.

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5) When you are sure that everything isaligned correctly, mix up a generous amountof 30 minute epoxy. Apply a thin layer to thetop and bottom of the stabilizer mounting areaand to the stabilizer mounting platform sidesin the fuselage. Slide the stabilizer in place andre-align. Double check all of your measure-ments one more time before the epoxy cures.Remove any excess epoxy using a papertowel and rubbing alcohol and hold the stabi-lizer in place with T-pins or masking tape.

6. After the epoxy has fully cured, re-move the masking tape or T-pins used tohold the stabilizer in place and carefully in-spect the glue joints. Use more epoxy to fillin any gaps that may exits that were notfilled previously and clean up the excess us-ing a paper towel and rubbing alcohol.

Epoxy glue

C/A glue

C/A glue

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

Control horn of elevator (1set).

Remove covering

Nilon control clasp.

M3 lock nut.

3mm x 40mm.

ELEVATOR CONTROL HORN INSTALLA-TION.

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CIA glue

Top side

CIA glue

Bottom side

E l e v a t o rcotrol horn

E l e v a t o rcotrol horn

Elevator pushrod install as same as the wayof aileron pushrod.

ELEVATOR PUSHROD INST ALLATION.

E l e v a t o rpushrod

E l e v a t o rpushrod

Secure

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Cut

Elevator servo

Bend andcut after

Elevator pushrod

Sna

p ke

eper

1) Put the rudder into the fuselage as sameas picture below.

2) Mark the shape of the vertical on the leftand right sides of the rudder using a left-tippen.

Hinge.

VERTICAL STABILIZER.

MOUNTING THE TAIL WHEEL BRACKET.

Mark line

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3. Now, remove the rudder and using amodeling knife, carefully cut just inside themarked lines and remove the film of the rud-der. Just as you did with the horizontal stabi-lizer, make sure you only press hard enough to cut the film, not the balsa rudder.

Also carefully remove the covering frombelow the lines as you drew as same picturebelow.

Remove covering

Top side

Remove covering

Epoxy glue

Epoxy glue

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4. Put the vertical stabilizer back inplace. Using a triangle, check to ensurethat the vertical stabilizer is aligned 90 de-gree to the horizontal stabilizer.

Installing CA Hinges for theRudder

5) Using a modeling knife, cut away thecovering from the end of fuselage for the rud-der hinge.




Epoxy glue

C/A glue

6) When you are sure that everything is aaligned correctly, mix up a generous amountof 30 minute epoxy. Apply a thin layer to theslot in the mounting platform and to the verti-cal stabilizer mounting area. Apply epoxy tothe lower rudder hinge. Set the stabilizer inplace and re-align. Double check all of yourmeasurements once more before the epoxycures. Remove any excess epoxy using apaper towel and rubbing alcohol and hold thestabilizer in place with T-pins or masking tape.Allow the epoxy to fully cure before proceed-ing.

C/A glue

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

CONTROL HORN - PUSHROD IN-STALLATION.

Nilon control clasp.

M3 lock nut.

3 x 50mm.

Ruddercontrol horn

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Remove covering

Slot of the rudder pushrod

3 x 12mm

Bottom of fuselage

Rudder push

rod

Rudder pushrod

Push d

own

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Rudder pushrod

Bend andcut after

Ruddercontrol horn

M3 lock nutM2 clevis

Secure

Rudder pusrod

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Snap keeper

Elevator servo

Rudder servo

Elevatorpushrod

Elevatorpushrod

Rudderpushrod

Secure

Rudder pushrod

Elevatorpushrod Elevator pushrod

Push

C/A glue

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Install adjustable servo connector in theservo arm.

After installing the adjustable metal con-nector apply a small drop of thin C/A to thebottom nut. This will prevent the connector fromloosening during flight.

PUSHROD THROTTLE SERVOINSTALLATION.

Throttle servo

Throttle pushrodSecure

Cut

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.

Remove covering

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3. Position the battery pack and receiverbehind the fuel tank. Use two tie wraps to holdthe battery and receiver securely in place aspictures 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.

Switch

RETRACTABLE SERVO INSTALLATION.

Retract servo

INSTALLING THE RECEIVER AND BATTERY.

Tie wrap.

4) Using a 2mm drill bit, drill a holethrough the side of the fuselage, near the re-ceiver, for the antenna to exit.

Receiver

1) Location the aluminium wing dihedralbrace.

2) Test fit the dihedral brace into each winghaft. The brace should slide in easily. If not,use 220 grit sand down the edges and endsof the brace until it fits properly.

JOINING THE WING HALVES.

Mark point

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Left wing

Right wing

Wing bolt

Installing the canopy as same as picturebelow.

Wing bolt

See picture wing attach to fuselage.

WING ATTACHMENT.

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Accurately mark the balance point on the topof the wing on both sides of the fuselage. Thebalance point is located 135mm 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 .

Secure thecanopy frame.

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 LOCATED135MM BACK FROM THE LEADING EDGEOF THE WING, AT THE FUSELAGE.

BALANCING.

2) Mount the wing to the fuselage. Using acouple of pieces of masking tape, place themon the top side of the wing 135 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 .

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.

135mm

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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.

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 MUSTANG P51.

PRE-FLIGHT CHECK.

CONTROL THROWS.

Ailerons : 10mm up 10mm down

Flap : 25mm down

Elevator : 8mm up 8mm down

Rudder : 30mm right 30mm left

Flap control

Aileron control

Elevator control

Rudder control

10mm10mm

8mm

8mm

25mm

30mm30mm

Instruction Manual book - Pichler Modellbau · towel or brown paper, both to protect the air-craft...

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Transcript of Instruction Manual book - Pichler Modellbau · towel or brown paper, both to protect the air-craft...