Hangar 9 P-51 Mustang 1.50 ARF Assembly Manual

Congratulations on your purchase of the Hangar 9®P-51 Mustang ARF. This sport scale model warbird is intended for the modeler wanting to experience the thrill of being a Fighter Ace in the European Theater during WW-II. The Hangar 9 P-51 is a low-wing, high-performance plane. If this is your first attempt at flying this type of aircraft, please consult a more experienced pilot to help in the setup and initial flights.

Specifications

Wingspan: .............. 77 in (1956mm)

Length:.................... 68 in (1727mm)

Wing Area:............. 1039 sq in (67.03sq dm)

Weight:................... 13–14 lb (5.89–6.34 kg)

Engine: ..................... 1.20–2.00 4-stroke

Radio:...................... 6-channel w/10 servos

ASSEMBLY MANUAL

P-51 Mustang

1.50 ARF

WE GET PEOPLE FLYING

Table of Contents

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Additional Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Contents of Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Additional Required Tools and Adhesives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Other Items Needed (not included in the kit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Using the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Before Starting Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Section 1: Hinging the Ailerons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Section 2: Aileron Servo Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Section 3: Aileron Linkages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Section 4: Hinging the Flaps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Section 5: Flap Servo Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Section 6: Flap Linkages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Section 7: Retract Servo Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Section 8: Main Landing Gear and Wheel Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Section 9: Joining the Wing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Section 10: Mounting the Wing to the Fuselage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Section 11: Lower Air Intake Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Section 12: Stabilizer Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Section 13: Hinging the Elevators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Section 14: Hinging the Rudder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Section 15: Tail Wheel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Section 16: Fuel Tank Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Section 17A: Engine Installation (Saito 180GK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Section 17B: Engine Installation (Saito 200 TI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Section 18: Throttle Pushrod and Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Section 19: Radio Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Section 20: Rudder and Elevator Linkages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Section 21: Throttle Linkage Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Section 22: Attaching the Cowl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Section 23: Cockpit Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Section 25: Applying the Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Section 24: Attaching the Canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Adjusting the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Control Throws and Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Preflight at the Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Contents of Kit

Large Parts

A. HAN2401 Wing Set with Joiner B. HAN2404 Fuselage C. HAN2402 Tail Set D. HAN2405 Fiberglass Belly Scoop E. HAN2406 Fiberglass Cowl F. HAN2407 Canopy

Additional Required Equipment

Radio Equipment

• 6-channel radio system (minimum)

• 8 standard servos (JRPS537 recommended or equivalent)

• 2 Low-Profile Retract Servos (JRPS703)

Recommended JR Systems

• JR XF652

• JR XP783

• JR XP8103

• PCM 10X

Recommended Engines

• 1.50–2.18 2-cycle engines

• 1.20–2.00 4-cycle engines

4-Cycle Engine

• Saito™ 1.80–2.00

Small Parts

1. HAN2403 Aluminum Stabilizer Tube Set

2. HAN2409 Tail Wheel Assembly

3. HAN2410 Pushrod Set

4. HAN2412 Scale Detail Set

Additional items sold separately

HAN2408 Mechanical Retract Set HAN2411 Decal Set

JR XP8103

JR PCM 10X

Saito 1.80

SAIE180

Saito 200Ti

SAIE200TI

Warning

Other Items Needed (not included in the kit)

Additional Required Tools and Adhesives

Tools

• Drill

• Drill Bits: 1/16", 1/8", 3/32", 5/64”, 5/32"

• Phillips screwdriver (small, medium)

• Pliers

• Side Cutters

• Moto-tool w/cut-off wheel

• Hobby knife with #11 blade

• 90-degree triangle

• Straight edge

• Canopy scissors

• Side cutters

• Adjustable wrench

• Hex wrench

Other Required Items

• Mixing sticks for epoxy

• Epoxy brushes

• Rubbing alcohol

• Sanding bar

• Sandpaper (medium)

• Paper towels

• Wax paper

• Felt-tipped pen or pencil

• Measuring device (e.g. ruler, tape measure)

• T-pins

• String

• Radio packing foam

• Petroleum jelly

Adhesives

• Thin CA (cyanoacrylate) glue

• Thick CA (cyanoacrylate) glue

• CA remover/debonder

• 6-minute epoxy

• 30-minute epoxy

• Pacer Z-42 Threadlock

• Canopy glue (RC-56)

• Masking tape (3M blue recommended)

• Propeller (consult your engines instruction manual)

• 24” Servo Lead Extension (JRPA102)

• 6” Servo Lead Extension (JRPA094)

An RC aircraft is not a toy! If misused, it can cause serious bodily harm and damage to property. Fly only in open areas, preferably at AMA (Academy of Model Aeronautics) approved flying sites, following all instructions included with your radio and engine.

• Large servo arm (JRPA212) (2)

• Propeller (consult your engines instruction manual)

• 5" P-51 Spinner

Before Starting Assembly

Using the Manual

Before beginning the assembly of your P-51, remove each part from its bag for inspection. Closely inspect the fuselage, wing panels, rudder, and stabilizer for damage. If you find any damaged or missing parts, contact the place of purchase.

If you find any wrinkles in the covering, use a heat gun or covering iron to remove them. Use caution while working around areas where the colors overlap to prevent separating the colors.

This manual is divided into sections to help make assembly easier to understand, and to provide breaks between each major section. In addition, check boxes have been placed next to each step to keep track of each step completed. Steps with two boxes indicate that the step will require repeating, such as for a right or left wing panel, two servos, etc. Remember to take your time and follow the directions.

Warranty Information

Horizon Hobby, Inc. guarantees this kit to be free from defects in both material and workmanship at the date of purchase. This warranty does not cover any parts damage by use or modification. In no case shall Horizon Hobby's liability exceed the original cost of the purchased kit. Further, Horizon Hobby reserves the right to change or modify this warranty without notice.

In that Horizon Hobby has no control over the final assembly or material used for the final assembly, no liability shall be assumed nor accepted for any damage of the final user-assembled product. By the act of using the product, the user accepts all resulting liability.

Once assembly of the model has been started, you must contact Horizon Hobby, Inc. directly regarding any warranty question that you have. Please do not contact your local hobby shop regarding warranty issues, even if that is where you purchased it. This will enable Horizon to better answer your questions and service you in the event that you may need any assistance.

If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is advised to return this kit immediately in new and unused condition to the place of purchase.

Horizon Hobby

4105 Fieldstone Road

Champaign, Illinois 61822

(217) 355-9511

www.horizonhobby.com

Section 1: Hinging the Ailerons

Required Parts

• Right and left wing panels w/ailerons

• CA hinges (6)

Required Tools and Adhesives

• Thin CA glue • CA remover/debonder

• Paper towel • T-Pins

Step 1

Carefully remove the tape holding the aileron to the wing. Locate the hardwood control horn mount in the aileron. The center of the mount is located 7

/16" inches from the tip end of the aileron (narrow end). The plate is 1

/4" wide and 1" deep.

Step 2

Locate three of the large CA hinges and place a T-pin in the center of the hinge as shown. Slide each of the three hinges into the aileron so the T-pin is resting against the leading edge of the aileron.

Step 3

Slide the aileron onto the wing until there is only a slight gap between the aileron and wing panel. Remove the T-pins and snug the aileron against the wing panel. Slide the aileron towards the wing tip until there is only

a 1/32" gap between the end of the aileron and wing tip.

Note: Do not use CA accelerator during the hinging process. The CA must be allowed to soak into the hinge to provide the best bond. Using accelerator will not provide enough time for this process.

Step 4

Deflect the aileron and apply thin CA to the hinge. Apply enough CA to completely saturate the hinge. Use care not to deflect the aileron so it pulls away from the wing. When the hinge is glued in place, there should be no more than a 1/32" hinge gap maintained throughout the length of the aileron.

Section 1: Hinging the Ailerons

Step 5

Turn the wing panel over, deflect the aileron in the opposite direction and apply thin CA to the other side of the hinges as described in the previous step. Make sure the thin CA penetrates completely into both the aileron and wing panel.

Step 6

Use CA remover/debonder and a paper towel to remove any excess CA accumulated on the wing or aileron surface. Allow time for the CA to completely cure before moving to the next step.

Step 7

Firmly grasp the wing and aileron and gently pull on the aileron to ensure the hinges are secure and cannot be pulled apart. Use caution when gripping the wing and aileron to avoid crushing the structure.

Step 8

Work the aileron up and down several times to work in the hinges and check for proper movement.

Step 9

Repeat Steps 1 through 8 for the remaining aileron.

Section 2: Aileron Servo Installation

Required Parts

• Wing assembly

• Aileron servos w/mounting hardware (2)

• Servo hatch screws (#2 x 3/8") (4)

• Large Servo Arm (JRPA212) (1 pkg)

• Servo mounting blocks (4)

• 24" Servo Lead Extension (JRPA102)

• Aileron servo hatch (2)

Required Tools and Adhesives

• Phillips screwdriver • Felt-tipped pen

• String/dental floss • Ruler

• Drill Bit: 1/16", 5/64" • Drill

• 6-minute epoxy

Step 1

Locate the aileron hatch. The slot for the aileron horn is positioned towards the trailing edge of the wing and towards the wing tip as shown.

Note: The aileron servo is mounted directly to the hatch.

Step 2

Install the recommended servo hardware (grommets and eyelets) supplied with the servo. Temporarily install a long half servo arm (JRPA212) onto the servo and position the servo onto the hatch so the servo arm is centered in the notch. Also ensure the servo arm does not extend past the edge of the servo hatch. Once satisfied, mark the location for the servo mounting blocks.

Step 3

Locate the servo mounting blocks. Use 6-minute epoxyto glue them in place on the marks made in the previous step. Let the epoxy fully cure before proceeding to the next step.

Section 2: Aileron Servo Installation

Step 4

Place the aileron servo between the mounting blocks and use a felt-tipped pen to mark the location of the four servo mounting screws. Note that the servo must not touch the hatch in order to isolate engine vibration.

Note: Before mounting the servo, it is suggested to electronically center the servo using the transmitter, then install the servo arm to avoid having to remove the servo and center the arm later. It may be necessary to slightly trim one of the servo mounting blocks to clear the servo wire.

Step 5

Remove the servo and use a 1/16" drill bit to predrill the holes for the servo mounting screws marked in the previous step. Use the screws supplied with the servo to mount it to the servo mounting blocks.

Step 6

Connect a 24" Servo Lead extension (JRPA212) to the servo lead. Secure the connectors by tying them in a knot using dental floss (as shown) or by using a commercially available connector clamp to prevent the servo leads from becoming disconnected.

Note: It is always a good idea to secure the servo connector and servo extension together to prevent the wires from becoming unplugged inside the wing.

Photo for Step 5

Section 2: Aileron Servo Installation

Step 7

Use a piece of string with a small weight (such as a wheel collar) attached as a device to pull the servo lead through the wing. Lower the weight through the opening at the root of the wing as shown.

Step 8

Stand the wing on the tip and allow the weight to drop through the wing until it appears in the opening for the servo leads. It may require a little help to pass by the wing ribs in the form of slightly shaking the wing.

Step 9

Tie the string onto the servo extension. Gently pull the extension through the wing using the string. Untie the string when the servo lead has been pulled through. Use tape to secure the servo lead to the wing to prevent it from falling back into the wing panel.

Step 10

Place the hatch cover in position in the aileron opening. Measure in 1/8" on all four sides of the hatch. Drill four 1/16" holes at the intersections of the lines as shown.

Note: Drill through the servo hatch and the underlying hatch mounts. Use caution not to accidentally drill through the top of the wing.

Photo for Step 9

Section 2: Aileron Servo Installation

Step 11

Remove the servo hatch cover and re-drill the holes using a 5/64" drill bit. Use 2–3 drops of thin CA to harden the underlying wood. This will prevent the screws from crushing the wood when they are tightened. Secure the hatch using four #2 x 3/8" screws.

Step 12

Repeat Steps 1 through 11 for the remaining aileron servo.

Photo for Step 11

Section 3: Aileron Linkages

Required Parts

• Wing assembly • Control horn (2)

• Mounting screws (6) • Metal clevis (4)

• Clevis keeper (4) • 4-40 x 2" threaded rod (2)

• 4-40 nuts (4) • #2 x 3/8" screws (6)

Required Tools and Adhesives

• Thin CA • Phillips screwdriver

• Drill Bit: 1/16", 5/64" • Drill

• Felt-tipped pen

Step 1

Prepare the 4-40 aileron linkage by placing the clevis keepers onto the metal clevises. Thread a 2-56 nut onto each end of the 4-40 x 2" threaded rod. Thread a clevis onto each end of the threaded rod. The threaded rod should just be visible between the forks of the clevis.

Step 2

Attach the assembled control linkage to the aileron servo arm.

Step 3

Remove the back plate from the control horn using side cutters or a sharp hobby knife. Use a 5/64" drill bit to drill out the mounting holes in the control horn.

Step 4

Position the control on the aileron by aligning the holes of the control horn with the hinge line of the aileron and center on the horn mounting plate (as marked back in Section 1). Use a felt-tipped pen to transfer the mounting holes from the control horn onto the aileron.

Section 3: Aileron Linkages

Step 5

Drill three 1/16" holes at the locations marked in the previous step. The holes only need to be 5/16" deep; don’t drill through the top of the aileron.

Step 6

Install one of the #2 x 3/8" screws into a hole drilled, then remove it. Place 2-3 drops of thin CA into the hole to harden the wood. This will eliminate the potential of the screw pulling out of the wood. Repeat this for each of the three holes.

Step 7

Attach the control horn using three #2 x 3/8" screws.

Step 8

Attach the aileron control linkage to the aileron control horn.

Note: The linkage will be adjusted in Section 18: Radio Installation

Step 9

Repeat Steps 1 through 8 for the remaining aileron servo linkage.

Section 4: Hinging the Flaps

Required Parts

• Wing assembly • Nylon flap hinges (6)

Required Tools and Adhesives

• 30-minute epoxy • Paper towels

• Rubbing alcohol • Petroleum jelly

Step 1

Carefully remove the tape holding the flap to the wing. Locate the hardwood control horn mount in the flap. The center of the mount is located 5" from the root of the flap (wide end). The plate is 1

/4" wide and 1" deep.

Step 2

Locate three of the nylon flap hinges. Apply a small amount of petroleum jelly to the hinge joint to prevent the epoxy from preventing movement of the hinge.

Step 3

Locate the holes in the wing and flap for the flap hinges. Remove the covering if necessary from each hole. There will be a total of three holes each in the wing and flap.

Section 4: Hinging the Flaps

Step 4

Install the hinges in the flap and slide the flap into position. Check to make sure the flap aligns with both the aileron and wing trailing edge. If it does not, enlarge the first 1/4" of the hinge holes in both the wing and flap to provide more clearance for the center of the hinge. This will allow the flap to be positioned closer to the wing for alignment.

Step 5

Use 30-minute epoxy to install the hinges. Apply epoxy to both the holes in the flap and wing using a toothpick. Apply a light coat of epoxy to the hinge. Slide the flap into position, and move it up and down to make sure the hinges are aligned. Use tape around the division between the flap and wing, as well as the flap and aileron, to hold the flap until the epoxy fully cures.

Step 6

Repeat Steps 1 through 5 for the remaining flap.

Section 5: Flap Servo Installation

Required Parts

• Wing assembly

• Flap servos w/mounting hardware (2)

• Servo hatch screws (#2 x 3/8") (4)

• Large Servo Arm (JRPA212) (1 pkg)

• Servo mounting blocks (4)

• 6" Servo Lead Extension (JRPA094)

• Flap servo hatch (2)

Required Tools and Adhesives

• Thin CA • Thick CA

• Phillips screwdriver • Felt-tipped pen

• Drill Bit: 1/16", 5/64" • Drill

• String/.dental floss

Step 1

Locate the flap hatch. The slot for the flap horn is positioned towards the trailing edge of the wing, as well as towards the tip, as shown in the photo.

Step 2

Section 5: Flap Servo Installation

Step 3

Locate the servo mounting blocks. Use 6-minute epoxyto glue them in place on the marks made in the previous step. Let the epoxy fully cure before proceeding to the next step.

Step 4

Place the flap servo between the mounting blocks and use a felt-tipped pen to mark the location of the four mounting screws.

Note: The servo must not touch the hatch in order to isolate engine vibration.

Step 5

Remove the servo and use a 1/16" drill bit to predrill the holes for the servo mounting screws marked in the pervious step. Use the screws supplied with the servo to mount it to the servo mounting blocks.

Step 6

Before installing the servo arm, center the servo electronically using the transmitter. Install the servo arm so it is positioned towards the rear of the servo hatch (trailing edge) when the transmitter is in the “up flap” position. Check the movement of the servo, then install the servo arm screw.

Section 5: Flap Servo Installation

Step 7

Connect a 6" Servo Lead extension (JRPA094) to the servo lead. Secure the connectors by tying them in a knot using dental floss (as shown) or by using a commercially available connector clamp to prevent the servo leads from becoming disconnected.

Note: It is always a good idea to secure the servo connector and servo extension together to prevent the wires from becoming unplugged inside the wing.

Step 8

Use a piece of string with a small weight (such as a wheel collar) attached as a device to pull the servo lead through the wing. Lower the weight through the opening at the root of the wing as shown.

Step 9

Step 10

Section 5: Flap Servo Installation

Step 11

Place the hatch cover into position in the flap opening. Measure in 1/8" on all four sides of the hatch. Drill four 1/16” holes at the intersections of the lines as shown.

Note: Drill through the servo hatch and the underlying hatch mounts. Use caution not to accidentally drill through the top of the wing.

Step 12

Step 13

Repeat Steps 1 through 12 for the remaining flap servo.

Section 6: Flap Linkages

Required Parts

• Wing assembly • Control horn (2)

• Mounting screws (6) • Metal clevis (4)

• Clevis keeper (4) • 4-40 nuts (4)

• 4-40 x 1-1/2" threaded rod (2)

• #2 x 3/8” screws (6)

Required Tools and Adhesives

• Thin CA • Phillips screwdriver

• Drill Bit: 1/16", 5/64" • Drill

• Felt-tipped pen

Step 1

Prepare the flap linkage by placing the clevis keepers onto the metal clevises. Thread a 4-40 nut onto each end of the 4-40 x 1-1/2" threaded rod. Thread a clevis onto each end of the threaded rod. The threaded rod should just be visible between the forks of the clevis.

Step 2

Attach the assembled linkage to the flap servo arm.

Step 3

Remove the back plate from the control horn using side cutters or a sharp hobby knife. Use a 5/64" drill bit to drill out the mounting holes in the control horn.

Step 4

Position the control horn on the flap by: Aligning the front edge of the control horn 1/2" behind the trailing edge of the wing and in-line with the flap control linkage. Use a felt-tipped pen to transfer the mounting holes from the control horn onto the flap.

+ 44 hidden pages

Hangar 9 P-51 Mustang 1.50 ARF Assembly Manual

Specifications and Main Features

Frequently Asked Questions

User Manual