Hangar 9 HAN2390CDLE60T Le manuel du propriétaire

Pitts S-2B 50–60cc

Instruction Manual

Bedienungsanleitung

Manuel d’utilisation

Manuale di Istruzioni

2EN

NOTICE

All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon

Hobby, LLC. For up-to-date product literature, visit horizonhobby.com or www.towerhobbies.com and click on the

support or resources tab for this product.

Age Recommendation: Not For Children Under 14 Years. This Is Not A Toy.

SAFETY WARNINGS AND PRECAUTIONS

Read and follow all instructions and safety precautions before use. Improper use can result in ﬁ re, serious injury and

damage to property.

Components

Use only with compatible components. Should any compatibility questions exist, please refer to the product

instructions, component instructions or contact the appropriate Horizon Hobby ofﬁ ce.

Flight

Fly only in open areas to ensure safety. It is recommended ﬂ ying be done at radio control ﬂ ying ﬁ elds. Consult local

ordinances before choosing a ﬂ ying location.

Propeller

Always keep loose items that can become entangled in the propeller away from the prop. This includes loose clothing

or other objects such as pencils and screwdrivers. Keep your hands away from the propeller as injury can occur.

Batteries

Always follow the manufacturer’s instructions when using and disposing of any batteries. Mishandling of Li-Po

batteries can result in ﬁ re causing serious injury and damage.

Small Parts

This kit includes small parts and should not be left unattended near children as choking and serious injury could result.

MEANING OF SPECIAL LANGUAGE

The following terms are used throughout the product literature to indicate various levels of potential harm when

operating this product:

WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage,

and serious injury OR create a high probability of superﬁ cial injury.

CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a

possibility of serious injury.

NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND a little or

no possibility of injury.

WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before

operating. Failure to operate the product correctly can result in damage to the product, personal property and

cause serious injury.

This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic

mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage

to the product or other property. This product is not intended for use by children without direct adult supervision. Do

not attempt disassembly, use with incompatible components or augment product in any way without the approval

of Horizon Hobby, LLC. This manual contains instructions for safety, operation and maintenance. It is essential to

read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate

correctly and avoid damage or serious injury.

SAFE OPERATING RECOMMENDATIONS

• Inspect your model before every ﬂ ight to ensure it is airworthy.

• Be aware of any other radio frequency user who may present an interference problem.

• Always be courteous and respectful of other users in your selected ﬂ ight area.

• Choose an area clear of obstacles and large enough to safely accomodate your ﬂ ying activity.

• Make sure this area is clear of friends and spectators prior to launching your aircraft.

• Be aware of other activities in the vicinity of your ﬂ ight path that could cause potential conﬂ ict.

• Carefully plan your ﬂ ight path prior to launch.

• Abide by any and all established AMA National Model Aircraft Safety Code.

BEFORE STARTING ASSEMBLY

• Remove parts from bag.

• Inspect fuselage, wing panels, rudder and stabilizer for damage.

• If you ﬁ nd damaged or missing parts, contact your place of purchase.

• Charge transmitter and receiver batteries.

• Center trims and sticks on your transmitter.

• For a computer radio, create a model memory for this particular model.

• Bind your transmitter and receiver, using your radio system’s instructions.

NOTICE: Rebind the radio system once all control throws are set. This will keep the servos from moving to their

endpoints until the transmitter and receiver connect. It will also guarantee the servo reversal settings are saved in the

radio system.

FAA INFORMATION

If you own this product, you may be required to register with the FAA.

For up-to-date information on how to register with the FAA, please visit https://registermyuas.faa.gov/.

For additional assistance on regulations and guidance on UAS usage, visit knowbeforeyouﬂ y.org/.

3 EN

Pitts S-2B 50–60cc

Part # Description

HAN239001 Stabilizer with Elevators

HAN239002 Rudder

HAN239003 Landing Gear

HAN239004 Tailwheel Assembly

HAN239005 Landing Gear Fairings

HAN239006 Hardware Set

HAN239007 Wing Tubes

HAN239008 Top Hatch & Canopy

HAN239009 Front Hatch

HAN239010 Cabane Strut Set

HAN239011 Interplane Strut Set

HAN239012 Fuselage

HAN239013 Cowling

HAN239014 Wheel Pants

HAN239015 Wing Set, Upper

HAN239016 Spinner 3

3

/

4

inch

HAN239017 Wing Set, Lower

HAN239019 Pushrod Set

HAN239020 Fuel Tank

HAN239021 Wheels

HAN239022 Upper Wing Center Section

HAN239023 Electric Motor Mount Set

HAN239024 Gas Engine Templates

REPLACEMENT PARTS

TABLE OF CONTENTS

Notice ......................................................................................................................................................................2

Meaning of Special Language ..................................................................................................................................2

Safety Warnings and Precautions .............................................................................................................................2

Safe Operating Recommendations ...........................................................................................................................2

Before Starting Assembly .........................................................................................................................................2

FAA Information .......................................................................................................................................................2

Replacement Parts ...................................................................................................................................................3

Required Adhesives .................................................................................................................................................3

Required for Completion - All Power Options ............................................................................................................4

Required for Completion - Gas Engine Installation ....................................................................................................4

Required for Completion - Electric Motor Installation ................................................................................................4

Optional Parts ..........................................................................................................................................................4

Tools Required .........................................................................................................................................................4

Removing Wrinkles ..................................................................................................................................................5

Building Precautions ................................................................................................................................................5

Transportation and Storage ......................................................................................................................................5

Replacement Covering .............................................................................................................................................5

Checking Blind Nuts.................................................................................................................................................5

Aileron Installation ...................................................................................................................................................5

Aileron Servo Installation .........................................................................................................................................6

Stabilizer Installation ................................................................................................................................................8

Receiver Installation ...............................................................................................................................................10

Rudder and Servo Linkage Installation ...................................................................................................................11

Tail Wheel Installation ............................................................................................................................................12

Elevator and Servo Linkage Installation ..................................................................................................................12

Landing Gear Installation .......................................................................................................................................14

Cabane Strut Installation ........................................................................................................................................15

Electric Motor Installation .......................................................................................................................................17

Spinner and Propeller Preparation ..........................................................................................................................18

Gas Engine Installation ...........................................................................................................................................19

Fuel Tank Assembly and Installation .......................................................................................................................20

Cowling Installation................................................................................................................................................21

Center of Gravity ....................................................................................................................................................22

Canopy Installation ................................................................................................................................................22

Control Throws ......................................................................................................................................................23

Preﬂ ight Checklist ..................................................................................................................................................23

Daily Flight Checks ................................................................................................................................................23

Limited Warranty ...................................................................................................................................................24

Warranty and Service Contact Information .............................................................................................................25

Instructions for Disposal of WEEE by Users in the European Union ..........................................................................25

Academy of Model Aeronautics National Model Aircraft Safety Code .......................................................................25

REQUIRED ADHESIVES

Description

15-minute epoxy

30-minute epoxy

Canopy Glue

Thin CA

Medium CA

Threadlock, low and high strength

4EN

REQUIRED FOR COMPLETION - ALL POWER OPTIONS

REQUIRED FOR COMPLETION - GAS ENGINE INSTALLATION

REQUIRED FOR COMPLETION - ELECTRIC MOTOR INSTALLATION

# Required Part # Description

7 SPMSA6380 A6380 H-T/H-S Digital HV Servo

1 SPMA3002 Heavy-Duty Servo Extension 9-inch

1 SPMA3006 Heavy-Duty Servo Extension 36-inch

4 SPMA3051 Standard Servo Extension 6-inch

1 SPMA3058 Standard Y-Harness

1 SPMAR12310T AR12310T 12CH PowerSafe Telemetry Receiver

1 SPMB4000LPRX 4000mAh 2S 7.4V LiPo Rx Battery

# Required Part # Description

1 DLEG0060 DLE-60cc Twin Gas Engine with Electronic Ignition

1 SPMSA6380 A6380 H-T/H-S Digital HV Servo

1 DUB800 Tygon Gas Tubing, 3-feet Large

1 EVOA112 Evolution 3 Wire Ignition/RX Switch

2 HAN116 Fuel Filler with T and Overﬂ ow Fitting

1 SPMB4000LPRX 4000mAh 2S 7.4V LiPo Rx Battery

# Required Part # Description

1 GPMG4800 Rimﬁ re 50cc Electric Motor

1 CSE010010300 Edge 160HV 50V ESC 010-0103-00

1 CSE010000401 CC BEC PRO 20A Max 12S swtch reg

2 SPMX70006S30 7000mah 6S 22.2V Smart 30C; IC5

# Required Part # Description

1 DLEG0061 DLE-61cc Gas Engine w/Elec Ignition

1 EVOA100 Optical Ignition Kill Switch

1 HAN239025 Sport Pilot Figure:Pitts S2B

1 SPMAS3000 AS3000 AS3X Stabilization Module

TOOLS REQUIRED

Description

Adjustable wrench

Balancing stand

Box Wrench Set

Clamps

Crimping tool

Drill and tap set, metric

Drill bit set, Imperial or Metric

Epoxy brushes

Felt-tipped pen

Hemostats

Hex wrench set, Imperial and Metric

Hobby knife with #11 blade

Hobby scissors

Hook and loop straps

Hook and loop tape

Isopropyl alcohol

Light machine oil

Low-tack tape

Mixing sticks

Needle nose pliers

Nut driver set, Imperial and Metric

Paper towels

Pencil

Petroleum jelly

Phillips screwdriver: #1, #2

Pin vise

Rotary tool

Ruler

Sanding bar

Sanding drum for rotary tool

Sandpaper

Scissors

Side cutters

Square

Tap handle

Tapered reamer

Tie wraps

Toothpicks

Wire stripper

OPTIONAL PARTS

5 EN

Pitts S-2B 50–60cc

REMOVING WRINKLES

The covering of your model may develop wrinkles during shipping. Use a covering iron (HAN101) with a sealing iron

sock (HAN141) to remove them. Start with a lower heat setting and use caution while working around areas where the

colors overlap to prevent separating the colors. It is also advised to use caution around the clear windows and wing

tips as these items are plastic and could distort with excessive heat. Avoid using too much heat, which could also

separate the colors. Placing a cool damp cloth on adjacent colors will also help prevent the separation of the colors

while removing wrinkles. Only use a heat gun (HAN100) once the covering iron has been used.

BUILDING PRECAUTIONS

Prepare the work surface prior to beginning the build. The surface should be soft and free of any sharp objects. We

recommend resting the airframe parts on a soft towel or pit mat to prevent scratching or denting the surface of the

aircraft.

TRANSPORTATION AND STORAGE

When transporting and storing your model, you will need a minimum of 80 inches (2m) in length, and 26 inches

(65cm) in height to accommodate the size of the fuselage. We also recommend the use of wing and stabilizer bags to

help protect these surfaces during transport and storage. The control horns and linkages can cause damage to other

surfaces even when placed in storage bags. Always transport and store the wings and stabilizer so the linkages do not

contact other panels to prevent damage.

REPLACEMENT COVERING

Your model is covered with UltraCote® ﬁ lm in the following colors. If repairs are required, order these coverings to

make those repairs.

HANU866 True Red

HANU870 White

HANU874 Black

CHECKING BLIND NUTS

When building the aircraft, you will be required to thread machine screws into blind nuts. We recommend pre-threading

the screws to make sure the blind nuts are clear of any debris. If the screws do not thread in easily, clear the threads

using the appropriate tap and tap handle.

AILERON INSTALLATION

1. Separate the aileron and hinges from the wing.

2. Apply a small amount of petroleum jelly to the ﬂ ex point of

each hinge. Flex the hinge to work the petroleum jelly into the

hinge. This will help in preventing the epoxy from getting into

the hinge.

3. Check the ﬁ t of the hinge in the aileron. The pin in the hinge

will align with the bevel of the aileron.

4. Check that the hinges are perpendicular to the hinge axis.

5. Remove the hinge. Mix 1/4 ounce (7.5cc) of 30-minute epoxy.

Apply the epoxy to the end of each hinge that will be placed

into the aileron.

6EN

6. Apply epoxy in each of the hinge pockets in the aileron.

7. Fit the hinges into the aileron. Check the alignment of each

hinge.

8. Remove any excess epoxy using a paper towel and isopropyl

alcohol. Check the hinge positions to make sure they were

not disturbed when removing the excess epoxy. Allow the

epoxy to fully cure before proceeding.

9. Mix 1/4 ounce (7.5cc) of 30-minute epoxy. Apply epoxy to the

end of each hinge that will be placed into the wing.

10. Apply epoxy in each of the hinge pockets in the wing.

11. Fit the aileron to the wing. Use a paper towel and isopropyl

alcohol to remove any excess epoxy.

12. Use low-tack tape to hold the aileron in position until the

epoxy fully cures. Allow the epoxy to cure before proceeding.

 The remaining aileron hinges can be glued at this time.

AILERON SERVO INSTALLATION

13. Use a ﬁ nger to locate the position for the aileron control horns

on the underside of the aileron. Use a hobby knife to remove

the covering to expose the control horn mounting location on

the underside of the aileron.

14. Use a ﬁ nger to locate the position for the aileron control horns

on the upper side of the aileron. Use a hobby knife to remove

the covering to expose the control horn mounting location on

the upper side of the aileron..

15. Fit the control horn into position on the underside of the

aileron.

7 EN

Pitts S-2B 50–60cc

1 inch

(25mm)

16. Secure the control horn using the control horn backplate and

an M3 x 14 socket head cap screw. Use a 2.5mm hex wrench

to tighten the screw.

 Do not overtighten the screw and damage

the underlying structure.

21. Place 2-3 drops of thin CA in each of the holes to harden

the surrounding wood. Allow the CA to fully cure before

proceeding.

17. Install the rubber grommets and eyelets in the aileron servos.

Use the instructions included with the servo for correct

installation.

22. Place the servo on the servo cover. The output of the servo

faces the leading edge (tape) of the cover. With a small gap

between the cover and servo, use a felt-tipped pen to mark

the locations of the servo mounting screws on the mounting

tabs.

18. Use a drill and 1.5mm drill bit to drill the four mounting holes

for the aileron servo covers. Use the holes in the cover as a

guide.

23. Remove the servo from the cover. Use a drill and 1.5mm drill

bit to drill the holes for the servo mounting screws.

19. Remove the cover from the wing. Leave the tape toward the

leading edge as a reference for the following steps.

24. Secure the servo to the mounting tabs using the screws

provided with the servo. Center the servo and place the arm

on the servo perpendicular to the servo centerline. Remove

any unused arms so they won’t interfere with the operation

of the servo.

20. Use a #1 Phillips screwdriver to thread an M2 x 8 sheet metal

screw into each of the holes. Remove the screws before

proceeding.

25. Enlarge the hole in the arm that is 1 inch (25mm) from the

center of the arm using a pin vise and 3mm drill bit.

8EN

26. Secure a 9-inch (230mm) to the servo lead using a safety

connector.

 Use a 6-inch (150mm) extension for the bottom wing servo.

31. Remove the tape from the wing and aileron. Secure one of

the rod ends to the outer hole of the control horn using a #2

Phillips screwdriver and an M3 x 10 machine screw.

28. Secure the servo and cover to the wing using a #1 Phillips

screwdriver and four M2 x 8 sheet metal screws.

27. Route the extension through the wing and out the wing root. 32. Attach the remaining rod end to the servo arm using an M3

x 10 machine screw, M3 washer and M3 lock nut. Use a

#2 Phillips screwdriver and 5mm nut driver to tighten the

hardware. Adjust the linkage to center the aileron when the

aileron servo is centered.

29. Thread the plastic rod ends on the 60mm threaded aileron

pushrod. Thread each of the rod ends equally on the threaded

rod. Start with a length of 87mm.

30. Snap the ball into the rod end. Prepare both rod ends at this

time.

STABILIZER INSTALLATION

33. Separate the elevators from the stabilizer. Remove the hinges

and set the elevators and hinges aside.

34. Use a hobby knife to remove the covering at the rear of the

fuselage under the ﬁ n, exposing the slot for the stabilizer.

9 EN

Pitts S-2B 50–60cc

35. Place low-tack tape around the slot. This will help prevent

epoxy from getting on the fuselage when gluing the stabilizer

in the slot.

36. Slide the retaining pins forward on the canopy hatch.

37. Lift the hatch at the rear and remove it from the fuselage.

38. Remove the forward hatch from the fuselage by sliding it

back and lifting it from the fuselage.

39. Slide the stabilizer into the slot. Align the rear section of the

stabilizer with the fuselage.

40. Measure back from the rear edge of the canopy opening

to the tips of the stabilizer on the left and right sides of

the fuselage. Position the stabilizer so the right and left

measurements are the same. Use T-pins to keep the stabilizer

from moving in the slot.

41. Use a felt-tipped pen to transfer the outline of the fuselage

onto the stabilizer.

42. Remove the stabilizer from the fuselage. Use a hobby knife

with a new #11 blade to and a straight edge to remove the

covering from the center of the stabilizer 1/8 inch (3mm)

inside the lines drawn.

 Use light pressure to avoid cutting into the

underlying wood, weakening the stabilizer.

43. Remove the lines from the stabilizer using isopropyl alcohol

and a paper towel.

44. Slide the longer wing tube into the socket in the fuselage.

Position the tube so equal amounts of the tube extend from

each side of the fuselage.

10EN

AA

A=A

45. Slide the stabilizer back into the slot in the fuselage. Stand

8-10 feet (2-3 meters) and check that the stabilizer is parallel

to the wing tube. If not, remove the stabilizer and lightly sand

the slot in the fuselage until the stabilizer is aligned perfectly

to the wing tube.

46. Remove the stabilizer and mix 1/2 ounce (15cc) of 30-minute

epoxy. Apply epoxy to the exposed wood on the stabilizer

that will come in contact with the bare wood of the slot in the

fuselage.

47. Apply epoxy to the slot where it will come in contact with the

stabilizer.

48. Slide the stabilizer into the slot and check the alignment

with the fuselage and wing tube. Remove any excess epoxy

from the stabilizer and fuselage using a paper towel and

isopropyl alcohol. Check the alignment of the stabilizer as the

epoxy cures to make sure it does not change position in the

fuselage. Once the epoxy has fully cured, remove the tape

from the fuselage.

RECEIVER INSTALLATION

49. Secure the receiver in the fuselage using the screws provided

with the receiver.

 For additional details, refer to the instructions

provided with the receiver.

50. Mount the remote receiver(s) in the fuselage.

 Use the instructions included with your receiver for

additional installation information for the remote receivers.

51. Mount the receiver switch in the radio tray. Holes will need

to be drilled in the tray for the mounting screws. It may be

necessary to trim the tray using a hobby knife with a #11

blade to properly install the switch. Connect two 6-inch

(150mm) servo extensions to the appropriate ports on the

receiver for the lower wing aileron servos.

52. Secure the receiver batteries in the fuselage using hook

and loop tape (not included) and hook and loop straps (not

included).

 Do not cover warnings on the battery when

mounting them in the fuselage.

11 EN

Pitts S-2B 50–60cc

1 inch

(25mm)

RUDDER AND SERVO LINKAGE INSTALLATION

53. Install the hinges in the rudder using 30-minute epoxy. Use

the techniques outlined in the section for the aileron hinges.

54. Secure the rudder to the ﬁ n. Use low-tack tape to hold the

rudder in position until the epoxy fully cures.

55. Remove the covering from the rudder to expose the control

horn mount. Secure the rudder control horn using an M3 x

25 socket head cap screw and 2.5mm hex wrench. Make

sure not to overtighten the screw and damage the underlying

structure of the rudder.

57. The pushrod will exit at the rear of the fuselage. Use a hobby

knife with a #11 blade to trim the covering so the pushrod

can exit the fuselage.

58. Snap an aluminum ball into the plastic rod end, then thread

the rod end 14 turns on the pushrod. Secure the rod end to

the outer hole of the rudder control horn using a #2 Phillips

screwdriver and an M3 x 10 machine screw.

59. Mount the rudder servo in the fuselage. The holes for the

servo will require drilling and preparing using thin CA. Center

the rudder servo using the radio system. Place the servo arm

on the rudder so it is 90-degrees to the rudder pushrod.

60. Use side cutters to trim excess from the servo arm. Enlarge

the hole in the arm that is 1 inch (25mm) from the center of

the arm using a pin vise and 3mm drill bit.

61. Snap an aluminum ball into the plastic rod end. Attach the

rod end to the servo arm using an M3 x 10 machine screw,

M3 washer and M3 locknut. Tighten the hardware with a #2

Phillips screwdriver and 5mm nut driver.

56. Slide the 23

1

/

4

inch (590mm) rudder pushrod into the rudder

pushrod tube in the fuselage.

62. Thread the rod end on the rudder pushrod. Check that when

the rudder servo is centered, and the arm is on the servo, the

rudder is centered. Thread the rod end as necessary to center

the rudder. Once centered, secure the servo arm to the servo

using the hardware supplied with the servo.

12EN

TAIL WHEEL INSTALLATION

63. Place the tiller arm on the bottom of the rudder. Use a felt-

tipped pen to mark the locations for the mounting screws on

the rudder. Use a drill and 1.5mm drill bit to drill the two holes

for the tiller mounting screws.

64. Thread an M3 x 10 sheet metal screw into each hole. Remove

the screws and apply 2-3 drops of thin CA into each hole.

Once the CA has fully cured, attach the tiller arm to the

bottom of the rudder using the two screws and a #2 Phillips

screwdriver.

65. Place the M4 lock washers on the M4 x 15 tailwheel bracket

mounting screws.

66. Attach the tail wheel bracket to the bottom of the fuselage

using the two M4 x 15 socket head screws. Use a 3mm hex

wrench to tighten the screws.

67. Connect the tailwheel tiller arm to the tiller arm on the bottom

of the rudder using the two springs. Bend the loops on the

ends of the springs as necessary to attach and secure their

position.

ELEVATOR AND SERVO LINKAGE INSTALLATION

68. Install the hinges in the elevator using 30-minute epoxy. Use

the techniques outlined in the section for the aileron hinges.

Secure the elevators to the stabilizer. Use low-tack tape to

hold the rudder in position until the epoxy fully cures. Once

cured, remove the tape.

69. Install the elevator servo support brace in the fuselage using

three M3 x 10 sheet metal screws. We recommend threading

the screws in the tray and preparing the holes using thin CA

as outlined earlier in this manual.

70. Slide the 19

1

/

16

inch (485mm) elevator pushrod into the

rudder pushrod tube in the fuselage.

71. The pushrod will exit at the rear of the fuselage. Use a hobby

knife with a #11 blade to trim the covering so the pushrod

can exit the fuselage.

13 EN

Pitts S-2B 50–60cc

13/16 inch

(21mm)

72. Position the elevator servo in the tray with the output facing

the rear of the fuselage. Mark the locations for the mounting

screws on the tray. Remove the servo and use a drill and

1.5mm drill bit to drill the locations for the mounting screws

Thread the mounting screws into the holes in the radio tray.

Remove the screws before proceeding Apply 2-3 drops of thin

CA in each hole. Allow the CA to fully cure before proceeding

Secure the servo using the screws provided with the servo.

 Please follow the steps as outlined for the elevator

control horn installation. The screw holding the right

side rod end to the control horn will not be accessible

once the control horn has been installed.

74. Snap an aluminum ball into the plastic rod end, then thread

the plastic rod end 14 turns on the pushrod.

77. Use side cutters to trim excess from the servo arm. Enlarge

the hole in the arm that is 13/16 inch (21mm) from the center

of the arm using a pin vise and 3mm drill bit.

78. Snap an aluminum ball into the plastic rod end. Attach the

rod end to the servo arm using an M3 x 10 machine screw,

M3 washer and M3 locknut. Tighten the hardware with a #2

Phillips screwdriver and 5mm nut driver.

79. Thread the rod end on the elevator pushrod. Check that when

the elevator servo is centered, and the arm is on the servo,

the elevator is centered. Thread the rod end as necessary to

center the elevator. Once centered, secure the servo arm to

the servo using the hardware supplied with the servo.

80. Repeat the previous steps to install the remaining elevator

servo and pushrod.

75. Secure the rod end to the outer hole in the elevator control

horn using a #2 Phillips screwdriver and an M3 x 10 machine

screw.

76. Remove the covering to expose the elevator control horn

mounting location. Secure the elevator control horn using

an M3 x 20 socket head cap screw and 2.5mm hex wrench.

Make sure not to overtighten the screw and damage the

underlying structure.

73. Center the servo using the radio system. Place the servo arm

on the servo so it is 90-degrees to the elevator pushrod.

14EN

LANDING GEAR INSTALLATION

81. Use two 1/2-inch wrenches to attach the axle to the landing

gear

82. Remove the wheel collars and use a ﬂ at ﬁ le to make a ﬂ at

area along the bottom of the axle. The setscrews from the

wheel collars will be tightened onto this ﬂ at area.

84. Fit the wheel to the axle, then install the remaining wheel

collar on the axle. Make sure the setscrews are tightened on

the ﬂ at area made on the axle.

86. Check that the wheel can rotate freely without binding on the

wheel collars or wheel pant. Adjust the wheel collars until the

wheel can rotate freely on the axle.

87. Use a hobby knife and #11 blade to remove the covering on

the landing gear fairings for the mounting screws. Attach the

landing gear fairing to the landing gear using two M4 x 10

button head screws and two M4 washers. Use thread lock on

the screws before tightening them with a 2.5mm hex wrench.

 Do not overtighten the screws and damage

the underlying structure of the fairings.

 Repeat the previous steps to assemble the

remaining landing gear assembly.

83. Slide one wheel collar on the axle. Apply a drop of light

machine oil on the axle.

88. Slide an M4 lock washer and M4 washer on the M4 x 25

socket head cap screws. Prepare all four screws.

89. Attach the landing gear to the fuselage using the M4 x 25

socket head cap screws prepared in the previous step.

Tighten the screws using an M3 hex wrench.

85. Mount the wheel pant on the landing gear using two M3 x 12

sheet metal screws.

15 EN

Pitts S-2B 50–60cc

90. The landing gear cover can be installed on the bottom of the

fuselage using contact adhesive or clear tape.

91. Check that the landing gear fairings do not rub against the

fuselage. Adjust their position if necessary.

93. Slide an M4 lock washer and M4 washer on an M4 x 15

button head screw. Prepare four of these screws. Attach the

rear cabane strut and cabane strut brace using these screws.

Leave the screws loose so the cabane can be positioned.

95. Remove the hatch from the top wing center section using a

#2 Phillips screwdriver. Set the two screws and cover aside.

97. Attach the top wing center section to the cabane struts using

two M4 x 15 button head screw. Use thread lock on the

screws. Tighten all the screws at this time using a 3mm hex

wrench.

98. Route two 36-inch (920mm) servo leads from the receiver to

the top wing center section.

94. Attach the cabane strut brace to the forward cabane strut

using two M4 x 10 button head screws and two M4 nuts. Use

thread lock on the screws.

99. Use clear or red tape to secure the servo leads to the inside

of the rear cabane strut.

96. Use a hobby knife with a #11 blade to remove the covering

for the servo leads and mounting screws in the underside of

the top wing center section.

CABANE STRUT INSTALLATION

92. Slide an M4 lock washer and M4 washer on an M4 x 15

button head screw. Prepare four of these screws. Attach the

forward cabane strut using these screws. Leave the screws

loose so the cabane can be positioned.

16EN

100. Attach the interplane strut mounting tabs to the bottom of

the top wing using M4 x 10 button head screws. Leave the

screws loose so the tabs can be positioned correctly.

101. Slide the shorter wing tube into the socket in the top wing.

The tube will easily slide into position. If not, use 0000 steel

wool to polish the wing tube.

102. Slide the tube into the top wing center section. Secure the

wing panel using two 1/4-20 x 1 inch nylon wing mounting

bolts. Connect the servo lead from the wing to the extension.

 Always install all the nylon bolts to secure the wing panels.

103. Attach the interplane strut mounting tabs to the top of the

bottom wing using M4 x 10 button head screws. Leave the

screws loose so the tabs can be positioned correctly.

104. Slide the longer wing tube into the socket in the bottom

wing. The tube will easily slide into position. If not, use 0000

steel wool to polish the wing tube. Slide the bottom wing into

position on the fuselage.

105. Secure the wing panel using two 1/4-20 x 1 inch nylon wing

mounting bolts. Connect the servo lead from the wing to the

extension.

 Always install all the nylon bolts to secure the wing panels.

106. Fit the interplane struts to the tabs. Use the strut mounting

pins to help hold the strut in place. The tabs will require

bending to align with the strut.

107. Remove the tabs from the wing panels and use two pliers to

bend the tabs slightly so they align with the struts.

 Do not bend the tabs while attached to the wing.

This could damage the structure of the wing.

108. Once bent, the tabs should align with the struts. The strut

mounting pins should slide easily through the interplane

strut and into the tab. Use thread lock on the screws when

installing the mounting tabs.

17 EN

Pitts S-2B 50–60cc

109. Secure the interplane strut mounting pins using the clips

provided.

ELECTRIC MOTOR INSTALLATION

 If installing a gas engine, please skip to

the next section of the manual

111. Use the lines around the holes in the ﬁ rewall and template to

properly align the template. Use low-tack tape to secure the

motor mounting template on the ﬁ rewall.

112. Use a drill and 1/4-inch (6.5mm) drill bit to drill the holes

in the ﬁ rewall for the motor mounting screws. Remove the

template and tape from the ﬁ rewall.

114. Layer the mounts and use low-tack tape to hold them

together until the epoxy fully cures. Make sure all the holes

are aligned.

115. Remove the forward compartment cover from the fuselage

using a #2 Phillips screwdriver. Set the screws and cover

aside.

113. Mix 3/4 ounce (20cc) of 30-minute epoxy. Apply the epoxy to

the face of three of the plywood EP mounts.

 The EP firewall is four pieces of plywood

that are laminated together.

116. Use an M5 x 60 socket head cap screw, an M5 washer and

an aluminum standoff to draw the M5 blind nut into the back

of the ﬁ rewall. Tighten the screw using an M4 hex wrench.

Install all four blind nuts. Secure the blind nuts to the inside of

the ﬁ rewall using a small amount of 30-minute epoxy. Make

sure no epoxy enters the threads of the blind nuts.

117. Remove the tape once the epoxy cures on the EP mounts.

Attach the mount to the ﬁ rewall using four aluminum

standoffs, M5 x 60 socket head cap screws and four M5

washers. Use thread lock on the screws to prevent them from

vibrating loose. Tighten the screws using an M4 hex wrench.

110. Once all the pins have been secured, tighten the M4 x 10

button head screws using a 2.5mm hex wrench. Remember

to apply a drop of thread lock on each screw to prevent it

from vibrating loose.

18EN

118. Attach the mount to the motor using the screws provided with

the motor.

 For additional details, refer to the

instructions provided with the motor.

119. Attach the motor to the motor mount using four aluminum

standoffs, four M5 x 60 socket head cap screws, four M5

blind nuts and four M5 washers. Use thread lock on the

screws to prevent them from vibrating loose. Tighten the

screws using an M4 hex wrench.

121. Install any connectors necessary for the battery and/or motor.

Secure the speed control to the fuselage. Connect the motor

to the speed control.

123. Slide the forward hatch back into position.

 Skip to the section “Cowling Installation.”

SPINNER AND PROPELLER PREPARATION

124. Trim the spinner cone to ﬁ t the propeller. There should be

1/16 inch (1.5mm) clearance around the propeller.

126. Slide the spinner backplate and propeller on the engine shaft.

127. Attach the spinner cone to the spinner backplate using one

of the spinner mounting screws. Adjust the propeller in the

openings.

122. Replace the forward compartment cover. Install the batteries

using hook and loop tape (not included) and hook and loop

straps (not included).

 Do not cover warnings on the battery when

mounting them in the fuselage.

125. Use a felt-tipped pen to mark the location for the propeller

mounting screws using the washer from the engine. Use a

drill press to drill the holes in the propeller for the mounting

screws.

 Use a reamer to align the washer with the propeller.

120. When installing the motor, the distance from the ﬁ rewall

to the face of the drive washer will measure 6

1

/

2

inches

(165mm). It may be necessary to use different standoffs

when using motors other than those recommended.

19 EN

Pitts S-2B 50–60cc

128. Carefully remove the spinner cone and use a drill bit to make

a small indentation on the backplate for the mounting screws.

Remove the propeller and backplate. Use a drill press to drill

the holes in the spinner backplate for the propeller mounting

screws.

GAS ENGINE INSTALLATION

129. Use the lines around the holes in the ﬁ rewall and template to

properly align the template. Use low-tack tape to secure the

engine mounting template on the ﬁ rewall.

130. Use a drill and 1/4-inch (6.5mm) drill bit to drill the holes

in the ﬁ rewall for the engine mounting screws. Remove the

template and tape from the ﬁ rewall.

131. Remove the forward compartment cover from the fuselage

using a #2 Phillips screwdriver. Set the screws and cover

aside.

133. Use the four M5 x 60 socket head cap screws, four M5

washers and four aluminum standoffs to attach the engine to

the ﬁ rewall. Make sure to use thread lock on all the screws to

prevent them from vibrating loose.

134. Slide a silicone clevis retainer on the metal clevis. Thread the

clevis on the longer throttle pushrod.

135. Drill a hole in the ﬁ rewall that aligns with the carburetor arm.

Slide the pushrod wire though the hole and into the fuselage,

Attach the clevis to the carburetor arm and slide the retainer

over the forks of the clevis.

 Use the instructions included with the engine for details

regarding the installation of the carburetor arm.

136. Install the throttle servo in the throttle servo mount.

Center the servo and place the servo arm so the arms are

perpendicular to the servo centerline.

132. Use an M5 x 60 socket head cap screw, an M5 washer and

an aluminum standoff to draw the M5 blind nut into the back

of the ﬁ rewall. Tighten the screw using an M4 hex wrench.

Install all four blind nuts. Remove the standoffs and screws.

Secure the blind nuts to the inside of the ﬁ rewall using a

small amount of 30-minute epoxy. Make sure no epoxy enters

the threads of the blind nuts.

20EN

137. Use side cutters to remove the arms that face up, forward

and rearward. Install the pushrod connector in the servo arm.

Use a toothpick to apply a drop of thin CA to secure the nut.

 Use the instructions included with the engine for details

regarding the position of the pushrod connector.

138. Secure the servo arm to the servo using the hardware

included with the servo.

142. Slide the fuel tubing into position.

139. Use 30-minute epoxy to glue the servo tray in the fuselage.

Allow the epoxy to fully cure before sliding the pushrod

through the connector.

140. Close the carburetor and use the radio system to move

the servo to the close position. Secure the pushrod in the

connector using the M3 setscrew and 2mm hex wrench.

Apply thread lock on the setscrew to prevent it from vibrating

loose. Check the operation of the carburetor to make so it

opens and closes as outlined in the engine instructions.

FUEL TANK ASSEMBLY AND INSTALLATION

141. Carefully heat the tubes on the inside of the stopper assembly

to have a slight barb, similar to that on the front of the

stopper. Bend one tube so if will face toward the top of the

tank when installed.

144. Install the stopper in the tank. Make sure the clunk(s) can

move freely inside the tank. Reposition the tubes in the

stopper or trim the fuel tubing if necessary. Tighten the screw

in the stopper using a #2 Phillips screwdriver secure the

stopper in the tank.

 Overtightening the stopper can potentially split the fuel tank.

145. Secure fuel tubing to the outside of the tank using tie wraps.

Trim the tie wraps so they don’t interfere with the installation

of the fuel tank.

146. Secure the fuel tank in the fuselage using hook and loop

straps. Use a piece of thin foam rubber between the tank

and fuel tank tray to prevent it from sliding on the tray during

extreme maneuvers.

143. Attach the clunk to the fuel line. The distance from the rear

aluminum plate to the end of the stopper will be 5

1

/

2

inches

(140mm). Use a small piece of wire to secure the tubing so it

does not slide off the tube or clunk.

 We recommend using a filtered clunk for the

engine, and a second clunk to fuel the aircraft.

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