Horizon Hobby Hangar 9 Solo User manual

Wingspan: ..................................... 80 in (2032mm)
Fuselage length: ......................... 49.9 in (1268mm)
Wing area: .......................... 919 sq in (59.3 sq dm)
ASSEMBLY MANUAL
Piper J-3 Cub 40
Plug-N-Play™
Weight: .............................. 6.75–7.5 lb (3–3.4 kg)
Engine: .......................................Evolution™ .46 NT
Radio: ................................. 4-channel w/ 5 servos
Specifications
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Additional Required Tools and Adhesives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Covering Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Field Equipment Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Using the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Before Starting Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Section 1: Receiver Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Section 2: Landing Gear Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Section 3: Propeller Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Section 4: Installing the Stabilizer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Section 5: Wing Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Adjusting the Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Control Throws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Recommended CG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Preflight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Range Testing the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Notes: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2005 Official AMA National Model Aircraft Safety Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
• Cub Yellow HANU884
• Black HANU874
Tools
• Adjustable wrench
• Hex wrench: 3/32"
• Hobby knife
• Phillips screwdriver (small)
• Phillips screwdriver (large)
• Ruler
• Threadlock
Other Required Items
• Measuring device (e.g. ruler, tape measure)
• Rubbing alcohol
• Covering Iron (HAN101)
• Covering Glove (HAN150)
• Sealing Iron Sock (HAN141)
Table of Contents
Covering Colors
Additional Required Tools and Adhesives

3
Large Parts:
A. Fuselage HAN4002
B. Wing HAN4001
C. Cowling HAN4004
D. Tail Set HAN4003
E. Landing Gear HAN4005
F. Wing Strut Set HAN4010
G. Window Set HAN4008
Items Not Shown:
Fuel Tank
Tail Wheel Assembly HAN4007
Decal Set HAN4009
Pushrod Set HAN4011
Wheels HAN4006
Top Fuselage Hatch HAN4012
Additional Items:
Evolution™ .46 EVOE0460
Servos JRPS537
Receiver Battery (700 mAh) JRPB3140
Receiver Battery (1100 mAh) JRPB4240
• Propeller 10 x 6 (APC10060)
• Acorn-style nut (1/4-28)
• Fuel
Field Equipment Required
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.
• Glow Plug Wrench (HAN2510)
• Glow Plug Igniter with Charger (HAN7101)
• Glow Plug (HAN3001/3006)
• Manual Fuel Pump (HAN118)
Replacement Parts
Warning
A
B
D
E
C
G
F

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Before beginning the assembly of your J-3 Cub, 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. Remember to take your time and follow the directions.
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 damaged 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 or caused by 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 store regarding warranty issues, even if that is where you
purchased it. This will enable Horizon to better answer your questions and provide service in the event that you may need
any assistance.
If the buyer or user is not prepared to accept the liability associated with the use of this product, they are advised to
return this kit immediately in new and unused condition to the place of purchase.
For any additional questions please contact:
Horizon Hobby Product Support
4105 Fieldstone Road
Champaign, Illinois 61822
[phone]
www.horizonhobby.com
HAN100 – Heat Gun
HAN150 – Covering Glove
HAN101 – Covering Iron
HAN141 – Sealing Iron
Sock
Before Starting Assembly
Using the Manual
Warranty Information

5
Required Parts
• Fuselage • Receiver
Required Tools and Adhesives
• Phillips screwdriver • Hobby knife
 Step 1
Plug the elevator, rudder and throttle servo leads into your
receiver. Plug the "Y" harness into the aileron channel of
the receiver. Plug the switch harness and battery leads
into the receiver as well. Install the flat radio foam into the
fuselage, followed by the die-cut foam.
Note: There is a tube located under the
elevator servo for the antenna wire. Route the
wire through this tube to the tail of the aircraft.
 Step 2
Place the remaining flat radio foam over the receiver and
battery. Secure the foam to prevent the receiver and battery
from moving from their location.
Note: The windows are not show for clarity.
Section 1: Receiver Installation

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Required Parts
• Landing gear w/wheels
• Landing gear strap (4)
• 2mm x 14mm screw (8)
Required Tools and Adhesives
• Phillips screwdriver (small)
Required Parts
• Fuselage • Propeller
Required Tools and Adhesives
• Phillips screwdriver (small)
 Step 1
Attach the propeller following the instructions provided
with your engine.
Note: Photo is shown using an acorn
nut installed instead of the standard propeller
nut and washer.
 Step 1
Position the landing gear to the bottom of the fuselage.
Secure the position of the gear using four landing gear
straps and eight 3mm x 10mm screws.
Section 2: Landing Gear Installation
Section 3: Propeller Installation

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Required Parts
• Stabilizer assembly • Fuselage
• #4 washer (4)
• 4-40 x 1/2" socket head screw (4)
Required Tools and Adhesives
• Hex wrench: 3/32" • Threadlock
 Step 1
Slide the stabilizer halves into the slot in the fuselage.
Use four 4-40 x 1/2" screws and four #4 washers to
secure the stabilizer. Use threadlock to prevent the
screws from vibrating loose during flight.
 Step 2
Attach the elevator clevises to the elevator control horns.
 Step 8
Attach the four connectors to the brass fittings of the
stabilizer. The cables should have very light tension.
Section 4: Installing the Stabilizer

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Required Parts
• Wing • Fuselage
• 4-40 lock nut (16) • 4-40 nut (4)
• Strut support anchor (4) • Strut bracket (4)
• Strut end (4) • Strut (narrow) (L&R)
• Strut (wide) (L&R) • Strut brace (long) 2
• Strut brace (short) (2) • Strut cross brace (2)
• #2 x 3/8" screw (4) • Fuselage hatch
• 1/4-20 x 2" nylon bolt (2)
• 4-40 x 1/2" socket head screw (24)
Required Tools and Adhesives
• Hex wrench: 3/32" • Adjustable wrench
• Threadlock
• Phillips screwdriver (small)
  Step 1
Attach two strut brackets to the bottom of the wing using
four 4-40 x 1/2" socket head screws. Use threadlock to
prevent the screws from loosening during flight.
  Step 2
Thread the strut support anchors into the holes in the
wing. The anchors have external threads.
  Step 3
Attach the strut to the strut brackets using two 4-40 x 1/2"
socket head screws and two 4-40 lock nuts. The wide strut
goes towards the leading edge, the narrow strut towards
the trailing edge.
Note: The airfoil of the struts matches the
direction of the wing. The struts also have
fittings in the center, which will face towards
the wing when installed.
Section 5: Wing Installation

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  Step 4
Thread a 4-40 nut onto the threaded end of the strut.
Thread a strut end onto the strut. The nut will be used
once the strut has been adjusted.
  Step 5
Install the short strut brace to the rear strut support
anchor and the long strut brace to the front strut support
anchor using 4-40 x 1/2" socket head screws and
4-40 nuts. Attach the strut supports and the strut cross
brace using two 4-40 x 1/2" socket head screws and
two 4-40 lock nuts.
  Step 6
Slide the wing tube into the wing panel. Slide the tube and
panel into position on the fuselage.
  Step 7
Secure the wing panel using a 1/4-20 x 2" nylon bolt.
Step 5 Photo
Section 5: Wing Installation

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  Step 8
Support the fuselage so the wing is not resting on the
work surface. Adjust the strut end so it aligns with the
wing strut mount. Attach the wing struts using two
4-40 x 1/2" socket head bolts and two 4-40 locking
nuts. Once attached, tighten the 4-40 nuts on the strut to
prevent the end from rotating when the wing is removed
for storage.
 Step 9
Repeat Steps 1 through 8 to install the remaining wing
panel and strut.
 Step 10
Install the fuselage hatch using four #2 x 3/8" screws.
Note: When removing the wing, simply
disconnect the bolts holding the strut to the
fuselage. This will make things much easier
when installing the wing at the field.
Note: The struts on the J-3 Cub are
functional, so be sure all bolts and nuts
are tight before flying. Failure to do so
could result in wing failure.
 Step 1
Completely read the instructions included with your
engine and follow the recommended break-in procedure.
 Step 2
At the field, adjust the engine to a slightly rich setting at
full throttle and adjust the idle and low-speed needle so
that a consistent idle is achieved.
 Step 3
Before you fly, be sure that your engine idles reliably,
transitions and runs at all throttle settings. Only
when this is achieved should any plane be considered
ready for flight.
Section 5: Wing Installation
Adjusting the Engine

11
The amount of control throw should be adjusted as closely
as possible using mechanical means, rather than making
large changes electronically at the radio. By moving
the position of the clevis at the control horn toward the
outermost hole, you will decrease the amount of control
throw of the control surface. Moving it toward the control
surface will increase the amount of throw. Moving the
pushrod wire at the servo arm will have the opposite
effect: Moving it closer to center will decrease throw,
and away from center will increase throw. Work with a
combination of the two to achieve the closest or exact
control throws listed.
Elevator
Low Rate
11/16" (11.5º) Up 9/16" (10º) Down
High Rate
11/4" (19.5º) Up 1" (18º) Down
Linear measurement (Inches) measured at
widest part of elevator (roughly in the center).
Note: Use the Low Rate for most flying. The
High Rate is used specifically for performing
spin maneuvers.
Aileron
Low Rate
3/8" (8º) Up 1/2" (9º) Down
High Rate
7/8" (21º) Up 11/16" (22º) Down
Linear measurement (inches) measured at root.
Rudder
11/2" (28º) Left 11/2" (28º) Right
Linear measurement (inches) measured at front
of counterbalance.
An important part of preparing the aircraft for flight is
properly balancing the model. This is especially important
when various engines are mounted.
Caution: Do not inadvertently skip this step!
The recommended Center of Gravity (CG) range for the
Piper J-3 Cub is 31/4" (82.5mm) behind the leading edge
of the wing against the fuselage. It is suggested to start at
the forward end of the range until comfortable with the
flight characteristics of your aircraft. If necessary, move
the battery pack or add weight to either the nose or the
tail until the correct balance is achieved. Stick-on
weights are available at your local hobby shop and work
well for this purpose.
Control Throws
Recommended CG

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Range Test Your Radio
 Step 1
Before going to the field, be sure that your batteries
are fully charged, per the instructions included with
your radio. Charge both the transmitter and receiver
pack for your airplane. Use the recommended charger
supplied with your particular radio system, following the
instructions provided with the radio. In most cases the
radio should be charged the night before going out flying.
 Step 2
Before each flying session, be sure to range check your
radio. See your radio manual for the recommended
range and instructions for your radio system. Each radio
manufacturer specifies different procedures for their
radio systems. Next, start the engine. With the model
securely anchored, check the range again. The range test
should not be significantly affected. If it is, don’t attempt
to fly! Have your radio equipment checked out by the
manufacturer.
Note: Keep loose items that can get entangled
in the propeller away from the prop. These
included loose clothing, or other objects such
as pencils and screwdrivers. Especially keep
your hands away from the propeller.
 Step 3
Double-check that all controls (aileron, elevator, rudder
and throttle) move in the correct direction.
 Step 4
Check the radio installation and make sure all the
control surfaces are moving correctly (i.e. the correct
direction and with the recommended throws). Test
run the engine and make sure it transitions smoothly
from idle to full throttle and back. Also ensure the engine
is tuned according to the manufacturer’s instructions,
and it will run consistently and constantly at full throttle
when adjusted.
Check all the control horns, servo horns, and clevises to
make sure they are secure and in good condition. Replace
any items that would be considered questionable. Failure
of any of these components in flight would mean the loss
of your aircraft.
Before each flying session, range-check your radio.
This is accomplished by turning on your transmitter
with the antenna collapsed. Turn on the radio in your
airplane. With your airplane on the ground, you should
be able to walk 30 paces away from your airplane and
still have complete control of all functions. If not, don’t
attempt to fly! Have your radio equipment checked out
by the manufacturer.
Preflight
Range Testing the Radio

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Notes:

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GENERAL
1) I will not fly my model aircraft in sanctioned
events, air shows or model flying demonstrations until
it has been proven to be airworthy by having been
previously, successfully flight tested.
2) I will not fly my model higher than approximately
400 feet within 3 miles of an airport without notifying
the airport operator. I will give right-of-way and avoid
flying in the proximity of full-scale aircraft. Where
necessary, an observer shall be utilized to supervise
flying to avoid having models fly in the proximity of
full-scale aircraft.
3) Where established, I will abide by the safety rules
for the flying site I use, and I will not willfully and
deliberately fly my models in a careless, reckless and/
or dangerous manner.
4) The maximum takeoff weight of a model is 55
pounds, except models flown under Experimental
Aircraft rules.
5) I will not fly my model unless it is identified with
my name and address or AMA number, on or in the
model. (This does not apply to models while being
flown indoors.)
6) I will not operate models with metal-bladed
propellers or with gaseous boosts, in which gases
other than air enter their internal combustion
engine(s); nor will I operate models with extremely
hazardous fuels such as those containing
tetranitromethane or hydrazine.
7) I will not operate models with pyrotechnics (any
device that explodes, burns, or propels a projectile
of any kind) including, but not limited to, rockets,
explosive bombs dropped from models, smoke
bombs, all explosive gases (such as hydrogen-filled
balloons), or ground mounted devices launching a
projectile. The only exceptions permitted are rockets
flown in accordance with the National Model Rocketry
Safety Code or those permanently attached (as per
JATO use); also those items authorized for Air Show
Team use as defined by AST Advisory Committee
(document available from AMA HQ). In any case,
models using rocket motors as a primary means of
propulsion are limited to a maximum weight of 3.3
pounds and a G series motor. (A model aircraft is
defined as an aircraft with or without engine, not able
to carry a human being.)
8) I will not consume alcoholic beverages prior to,
nor during, participation in any model operations.
9) Children under 6 years old are only allowed
on the flight line as a pilot or while receiving
flight instruction.
RADIO CONTROL
1) I will have completed a successful radio equipment
ground range check before the first flight of a new or
repaired model.
2) I will not fly my model aircraft in the presence
of spectators until I become a qualified flier, unless
assisted by an experienced helper.
3) At all flying sites a straight or curved line(s) must
be established in front of which all flying takes place
with the other side for spectators. Only personnel
involved with flying the aircraft are allowed at or in
the front of the flight line. Intentional flying behind the
flight line is prohibited.
4) I will operate my model using only radio control
frequencies currently allowed by the Federal
Communications Commission. (Only properly
licensed Amateurs are authorized to operate
equipment on Amateur Band frequencies.)
2005 Official AMA
National Model Aircraft Safety Code

15
5) Flying sites separated by three miles or more
are considered safe from site-to site interference,
even when both sites use the same frequencies. Any
circumstances under three miles separation require
a frequency management arrangement, which may
be either an allocation of specific frequencies for
each site or testing to determine that freedom from
interference exists. Allocation plans or interference
test reports shall be signed by the parties involved
and provided to AMA Headquarters. Documents of
agreement and reports may exist between (1) two
or more AMA Chartered Clubs, (2) AMA clubs and
individual AMA members not associated with AMA
Clubs, or (3) two or more individual AMA members.
6) For Combat, distance between combat engagement
line and spectator line will be 500 feet per cubic
inch of engine displacement. (Example: .40 engine
= 200 feet.); electric motors will be based on
equivalent combustion engine size. Additional safety
requirements will be per the RC Combat section of the
current Competition Regulations.
7) At air shows or model flying demonstrations, a
single straight line must be established, one side of
which is for flying, with the other side for spectators.
8) With the exception of events flown under AMA
Competition rules, after launch, except for pilots or
helpers being used, no powered model may be flown
closer than 25 feet to any person.
9) Under no circumstances may a pilot or other
person touch a powered model in flight.
Organized RC Racing Event
10) An RC racing event, whether or not an AMA Rule
Book event, is one in which model aircraft compete
in flight over a prescribed course with the objective of
finishing the course faster to determine the winner.
A. In every organized racing event in which contestants,
callers and officials are on the course:
1. All officials, callers and contestants must properly
wear helmets, which are OSHA, DOT, ANSI, SNELL or
NOCSAE approved or comparable standard while on
the racecourse.
2. All officials will be off the course except for the
starter and their assistant.
3. "On the course” is defined to mean any area
beyond the pilot/staging area where actual flying
takes place.
B. I will not fly my model aircraft in any organized
racing event which does not comply with paragraph A
above or which allows models over 20 pounds unless
that competition event is AMA sanctioned.
C. Distance from the pylon to the nearest spectator
(line) will be in accordance with the current
Competition Regulations under the RC Pylon Racing
section for the specific event pending two or three
pylon course layout.
11) RC night flying is limited to low-performance
models (less than 100 mph). The models must be
equipped with a lighting system that clearly defines
the aircraft’s attitude at all times.
2005 Official AMA
National Model Aircraft Safety Code

© 2005 Horizon Hobby, Inc.
4105 Fieldstone Road
Champaign, Illinois 61822
[phone]
horizonhobby.com
7903
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