Hangar 9 Tango 40 ARF User manual

Wingspan.................................... 48.2 in (1225mm)
Wing Area ........................... 747 sq in (48.2 sq dm)
Length......................................... 49.4 in (1255mm)
Weight......................... 5.5–6.5 lb (2.5 kg–2.95 kg)
Assembly mAnuAl
Tango 40 ARF
Engine..................................... .56–.82 Four-Stroke
....................................... .40–.52 Two-Stroke
...........................................Power 46 Electric
Radio..............4-Channel w/5 Servos (4 for electric)
Specifications

2
Table of Contents
Using the Manual ..................................................................3
Required Tools and Adhesives ........................................................3
UltraCote Covering Colors ...........................................................3
Before Starting Assembly ............................................................3
Radio and Power Systems Requirements ................................................4
Recommended JR, JR SPORT and Spektrum Systems ......................................4
Recommended Setup–Glow ..........................................................4
Recommended Setup–Electric ........................................................4
FS One ..........................................................................4
Field Equipment ...................................................................4
Warranty Period ...................................................................5
Limited Warranty...................................................................5
Damage Limits ....................................................................5
Safety Precautions .................................................................5
Questions, Assistance, and Repairs ....................................................6
Inspection or Repairs ...............................................................6
Warranty Inspection and Repairs.......................................................6
Non-Warranty Repairs...............................................................6
Safety, Precautions, and Warnings .....................................................7
Contents of Kit ....................................................................7
Section 1: Aileron Servo Installation....................................................8
Section 2: Landing Gear and Tail Installation ............................................11
Section 3A: Two-Stroke Engine Installation .............................................13
Section 3B: Electric Motor Installation .................................................17
Section 4: Final Assembly ..........................................................20
Control Throws ...................................................................22
Recommended Center of Gravity (CG) .................................................22
Pre-Flight .......................................................................23
Adjusting the Engine...............................................................23
Range Test Your Radio .............................................................23
Maintaining Your Tango 40 ARF ......................................................24
Glossary of Terms .................................................................25
2007 Official AMA National Model Aircraft Safety Code................................ 26–27

3
Using the Manual
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 a single box () are performed once, while 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.
Required Tools and Adhesives
Tools
• Felt-tipped pen or pencil • Flat screwdriver
• Adustable wrench • Drill
• Hobby knife • Masking tape
• Phillips screwdriver (large) • Phillips screwdriver (small)
• Ruler • Sandpaper
• Soldering iron • Solder
• Hex wrench: 3/32-inch
• Drill bit: 1/16-inch (1.5mm), 5/64-inch (2mm), 9/64-inch (3.5mm)
Adhesives
• Formiula 560 Canopy Glue (PAAPT56) • Pacer Z-42 Threadlock (PAAPT42)
• Thin CA (cyanoacrylate) Glue (PAAPT07) • CA Remover/Debonder (PAAPT16)
UltraCote Covering Colors
• Orange HANU877 • White HANU870
• Deep Blue HANU873
Before Starting Assembly
Before beginning the assembly of the Tango™40, 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 sealing iron to remove them. Use caution while working around
areas where the colors overlap to prevent separating the colors.
HAN100 – Heat Gun
HAN150 – Covering Glove
HAN101 – Sealing Iron
HAN141 – Sealing Iron
Sock

4
Radio and Power Systems Requirements
• 4-channel radio system (minimum) w/Receiver • Large Servo Arms (JSP98060) (3 pkgs)
• JR Standard Switch (JSP98010) • 700mAh Ni-Cd 4-cell (JSP91010)
• 18-inch Servo Lead Extension (JSP98120) (2)
• Y-harness (Ailerons) (JSP98020) (Required when using 4-channel radio)
or 6-inch Servo Lead Extension (JSP98110) (2) when mixing ailerons through the radio
• ST47 Standard Servo (JSP20050) (5) or equivalent (4 when building electric version)
Recommended JR, JR SPORT and Spektrum Systems
• XP9303
• XP7202
• DX7
• XP6102
• XS600
Recommended Setup–Glow
• Evolution® .52NX with Muffler (EVOE0520)
• Evolution Propeller 11 x 5 (EVO11050) to 11 x 6 (EVO11060)
Recommended Setup–Electric
• E-flite®Power 46 BL Outrunner Motor (EFLM4046A)
• Castle Creations 60A ESC (CSEPHX60)
• Thunder Power 4S 3850–4500mAh Li-Po Battery Pack
• APC Propeller 13x6.5-inch (APC13065E) to 14x7 (APC14070E)
FS One
With FS One®you get more than photorealistic fields, gorgeous
skies and realistic-looking aircraft. You get incredibly advanced
aerodynamic modeling that simulates every possible aspect
of real-world flight.
Field Equipment
• Propeller • Fuel
• Glow Plug Wrench (HAN2510) • Glow Plug Igniter w/charger(HAN7101)
• Glow Plug (EVOGP1) • Manual Fuel Pump (HAN118)
JR XP9303
Evolution .52NX
EVOE0520
JR XP7202
Spektrum DX7
HANS2000
Power 46 Brushless
Outrunner Motor,670KV
EFLM4046A

5
Warranty Period
Exclusive Warranty- Horizon Hobby, Inc., (Horizon) warranties that the Products purchased (the "Product") will be free
from defects in materials and workmanship at the date of purchase by the Purchaser.
Limited Warranty
(a) This warranty is limited to the original Purchaser ("Purchaser") and is not transferable. REPAIR OR REPLACEMENT
AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER. This warranty covers only
those Products purchased from an authorized Horizon dealer. Third party transactions are not covered by this warranty.
Proof of purchase is required for warranty claims. Further, Horizon reserves the right to change or modify this warranty
without notice and disclaims all other warranties, express or implied.
(b) Limitations- HORIZON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-
INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCT. THE
PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET
THE REQUIREMENTS OF THE PURCHASER’S INTENDED USE.
(c) Purchaser Remedy- Horizon's sole obligation hereunder shall be that Horizon will, at its option, (i) repair or (ii)
replace, any Product determined by Horizon to be defective. In the event of a defect, these are the Purchaser's exclusive
remedies. Horizon reserves the right to inspect any and all equipment involved in a warranty claim. Repair or replacement
decisions are at the sole discretion of Horizon. This warranty does not cover cosmetic damage or damage due to acts of
God, accident, misuse, abuse, negligence, commercial use, or modification of or to any part of the Product. This warranty
does not cover damage due to improper installation, operation, maintenance, or attempted repair by anyone other than
Horizon. Return of any goods by Purchaser must be approved in writing by Horizon before shipment.
Damage Limits
HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR
PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT, WHETHER SUCH CLAIM
IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. Further, in no event shall the liability of
Horizon exceed the individual price of the Product on which liability is asserted. As Horizon has no control over use,
setup, final assembly, modification or misuse, no liability shall be assumed nor accepted for any resulting damage or
injury. By the act of use, setup or assembly, the user accepts all resulting liability.
If you as the Purchaser or user are not prepared to accept the liability associated with the use of this Product, you are
advised to return this Product immediately in new and unused condition to the place of purchase.
Law: These Terms are governed by Illinois law (without regard to conflict of law principals).
Safety Precautions
This is a sophisticated hobby Product and not a toy. 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. The Product 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 injury.

6
Questions, Assistance, and Repairs
Your local hobby store and/or place of purchase cannot provide warranty support or repair. Once assembly, setup or
use of the Product has been started, you must contact Horizon directly. This will enable Horizon to better answer your
questions and service you in the event that you may need any assistance. For questions or assistance, please direct your
email to [e-mail], or call 877.504.0233 toll free to speak to a service technician.
Inspection or Repairs
If this Product needs to be inspected or repaired, please call for a Return Merchandise Authorization (RMA). Pack
the Product securely using a shipping carton. Please note that original boxes may be included, but are not designed
to withstand the rigors of shipping without additional protection. Ship via a carrier that provides tracking and insurance
for lost or damaged parcels, as Horizon is not responsible for merchandise until it arrives and is accepted
at our facility. A Service Repair Request is available at www.horizonhobby.com on the “Support” tab. If you do not
have internet access, please include a letter with your complete name, street address, email address and phone number
where you can be reached during business days, your RMA number, a list of the included items, method of payment
for any non-warranty expenses and a brief summary of the problem. Your original sales receipt must also be included
for warranty consideration. Be sure your name, address, and RMA number are clearly written on the outside of the
shipping carton.
Warranty Inspection and Repairs
To receive warranty service, you must include your original sales receipt verifying the proof-of-purchase
date. Provided warranty conditions have been met, your Product will be repaired or replaced free of charge. Repair or
replacement decisions are at the sole discretion of Horizon Hobby.
Non-Warranty Repairs
Should your repair not be covered by warranty the repair will be completed and payment will be
required without notification or estimate of the expense unless the expense exceeds 50% of the retail
purchase cost. By submitting the item for repair you are agreeing to payment of the repair without notification. Repair
estimates are available upon request. You must include this request with your repair. Non-warranty repair estimates will
be billed a minimum of ½ hour of labor. In addition you will be billed for return freight. Please advise us of your preferred
method of payment. Horizon accepts money orders and cashiers checks, as well as Visa, MasterCard, American Express,
and Discover cards. If you choose to pay by credit card, please include your credit card number and expiration date. Any
repair left unpaid or unclaimed after 90 days will be considered abandoned and will be disposed of accordingly. Please
note: non-warranty repair is only available on electronics and model engines.
Electronics and engines requiring inspection or repair should be shipped to the following address:
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
All other Products requiring warranty inspection or repair should be shipped to the following address:
Horizon Product Support
4105 Fieldstone Road
Champaign, Illinois 61822
Please call 877-504-0233 with any questions or concerns regarding this product or warranty.

7
Safety, Precautions, and Warnings
This model is controlled by a radio signal that is subject to interference from many sources outside your control. This
interference can cause momentary loss of control so it is advisable to always keep a safe distance in all directions around
your model, as this margin will help to avoid collisions or injury.
• Always operate your model in an open area away from cars, traffic, or people.
• Avoid operating your model in the street where injury or damage can occur.
• Never operate the model into the street or populated areas for any reason.
• Never operate your model with low transmitter batteries.
• Carefully follow the directions and warnings for this and any optional support equipment (chargers, rechargeable
battery packs, etc.) that you use.
• Keep all chemicals, small parts and anything electrical out of the reach of children.
• Moisture causes damage to electronics. Avoid water exposure to all equipment not specifically designed and protected
for this purpose.
Contents of Kit
Replacement Parts
A. HAN4601 Wing Set
B. HAN4602 Fuselage
C. HAN4603 Tail Set
D. HAN4604 Landing Gear w/o Wheels
E. HAN4607 Windshield
Items Not Shown
HAN4605 Decal Sheet
HAN4606 Pushrod Set
A
B
C
D
E

8
Required Parts
• Wing panel w/ailerons
• Servo w/hardware (2)
• Pre-assembled 3 1/2-inch (89mm) aileron linkage (2)
Required Tools and Adhesives
• Drill • Thin CA
• Phillips screwdriver • Long servo arm
• Drill bit: 1/16-inch (1.5mm)
Step 1
Check to make sure the hinges have been securely glued
into place. Gently pull on each aileron to make sure the
hinges are secure. Avoid too much pressure which could
cause damage to the wing and aileron. Saturate each
hinge if you find any that are loose.
Step 2
Flex each aileron up and down a number of times to
break in the hinges.
Step 3
Prepare an aileron servo by installing the grommets and
brass eyelets provided with the servo.
Section 1: Aileron Servo Installation

9
Step 4
Tie the string that exits the servo opening to the servo
extension. Use the string to pull the servo lead through
the wing.
Step 5
Place the servo into the opening with the servo output arm
towards the leading edge of the wing. Use a felt-tipped
pen to mark the locations for the four servo mounting
screws.
Step 6
Remove the servo and drill the locations for the servo
mounting screws using a 1/16-inch (1.5mm) drill bit.
Step 7
Apply a couple drops of thin CA to each hole to harden
the wood, which will help in preventing the screws from
damaging the wood.
Section 1: Aileron Servo Installation

10
Step 8
Secure the servo using the screws provided with the
servo. Remove the stock servo horn and install a long
servo arm in its place. Remove the side of the arm that
does not align with the control horn.
Step 9
Enlarge the outer hole of the servo arm using a
5/64-inch (2mm) drill bit. Remove the pushrod keeper
from the linkage and slide the bend through the servo
arm. Secure the pushrod to the servo arm by replacing
the pushrod keeper.
Step 10
Attach the clevis to the control horn. With the radio system
on and the aileron trim and stick centered, check that the
aileron is centered when viewed from the wing tip. Adjust
the length of the linkage if necessary.
Step 11
Use tape on the servo lead to prevent it from falling back
into the wing.
Step 12
Repeat Steps 1 through 11 for the remaining aileron servo.
Section 1: Aileron Servo Installation

11
Required Parts
• Landing gear w/wheels • Fuselage
• 1-inch (25mm) tail wheel • Rudder assembly
• Stabilizer assembly • 4-40 locknut (2)
•#4 washer (large) (2) •#6 washer (3)
• 5/64-inch wheel collar • 4-40 setscrew
• 6-32 x 3/4-inch machine screw (3)
• Pre-assembled 4 1/2-inch (114mm) linkage (2)
Required Tools and Adhesives
• Servo w/hardware (2) • Long servo arm (2)
• Adjustable wrench
• Threadlock
• 18-inch (458mm) servo extension (2)
Step 1
Attach the landing gear to the bottom of the fuselage
using three 6-32 x 3/4-inch machine screws and three #6
washers.
Note: Use threadlock on the screws to
prevent them from vibrating loose in flight.
Step 2
Slide the threaded rods from the rudder assembly into the
holes in the stabilizer. The two forward rods go through
the stabilizer as shown.
Step 3
Slide the rudder/stabilizer onto the fuselage. Guide the
threaded rods through the stabilizer saddle then through
the holes in the bottom of the fuselage.
Section 2: Landing Gear and Tail Installation

12
Step 4
Secure the tail assembly to the fuselage using two larger
#4 washers and two 4-40 locknuts. Do not over-tighten
the nuts and crush the fuselage.
Step 5
Secure the tail wheel into position using the 5/64-inch
wheel collar and the 4-40 setscrew.
Note: Use threadlock on the setscrew to
prevent it from vibrating loose in flight.
Step 6
Attach an 18-inch (458mm) servo extension to the
rudder servo. Secure the extension using a commercially
available connector, heat shrink tubing or string so it will
not unplug inside the fuselage.
Step 7
Center the servo using the radio and install a long servo
arm onto the servo. Use the photo to determine which
arm to trim off, as it will hit the elevator if left in place.
Mount the rudder servo into the fuselage using the same
procedure as the aileron servo.
Section 2: Landing Gear and Tail Installation

13
Step 8
Install the pre-assembled 4 1/2-inch (114mm) rudder
linkage. With the radio on, adjust the length of the linkage
so the rudder is centered.
Step 9
Repeat Steps 6 through 8 to install the elevator servo
and linkage.
Required Parts
• Fuselage • Engine mount (2)
•#6 washer (4) • Pushrod connector
• 6-32 locknut (4) • #4 washer
• 4-40 x 1/2-inch socket head screw
• 6-32 x 1-inch machine screw (8)
• 15-inch (380mm) throttle pushrod
• 21/2-inch (64mm) spinner w/hardware
• Pushrod connector backplate
• 3mm x 5mm machine screw
• Plywood radio tray (glow)
Required Tools and Adhesives
• Servo w/hardware • Ruler
• Drill • Phillips screwdriver
• Hex wrench: 3/32-inch • Hobby knife
• Drill bit: 1/16-inch (1.5mm), 5/64-inch (2mm),
9/64-inch (4mm)
Step 1
Mount the engine mount onto the firewall using four
6-32 x 1-inch screws.
Note: Use the vertical holes for
mounting the engine mount.
Note: Use threadlock on the screws to
prevent them from vibrating loose in flight.
Section 2: Landing Gear and Tail Installation
Section 3A: Two-Stroke Engine Installation

14
Step 2
Position the engine on the engine mount so the drive
washer is 4 inches (102mm) ahead of the firewall. Mark
the location of the engine mounting bolts using a felt-
tipped pen. Use a 9/64-inch (4mm) drill bit to drill the
holes in the engine mount.
Hint: Use a drill press to get the holes in
the mount perpendicular to the mount.
Step 3
Mount the engine to the mount using four 6-32 x 1-inch
machine screws, four #6 washers and four 6-32 locknuts.
Step 4
Slide the 15-inch (380mm) throttle pushrod into the
pushrod tube and attach the clevis to the carburetor arm.
Step 5
Install the muffler onto your engine using the instructions
provided with the engine as a guide.
Section 3A: Two-Stroke Engine Installation

15
Step 6
Install the propeller and spinner onto the engine.
Consult the instructions provided with your engine
for further details.
Step 7
Remove the access hatch from the bottom of the fuselage.
Step 8
Install the throttle servo into the fuselage. Turn on the
radio system and center the throttle stick and trim. Slide
the pushrod into the brass connector. Position the servo
horn onto the servo so the horn is perpendicular to the
servo centerline.
Step 9
Remove the servo horn and attach the pushrod connector
to the throttle servo arm using the connector backplate.
You will need to enlarge the hole in the servo arm using a
5/64-inch (2mm) drill bit.
Section 3A: Two-Stroke Engine Installation

16
Step 10
Use the radio to move the throttle to the low setting
using the stick and trim. Move the pushrod so the
carburetor is closed. Secure the pushrod wire using a
3mm x 5mm machine screw.
Step 11
Check that the throttle operates from the radio without
binding at low and high throttle. Use the ATV setting
of the radio or change the position of the clevis at the
carburetor or the pushrod connector at the servo to
eliminate any binding.
Step 12
Place the tank inside the fuselage with the vent towards
the top of the fuselage. Use the rubber bands to hold the
fuel tank in position inside the fuselage.
Step 13
Attach the lines from the fuel tank to the engine. The
green line will attach to the fuel inlet, and the red to
the muffler pressure.
Step 14
Use a 4-40 x 1/2-inch socket head screw to secure the
radio tray in the fuselage. Two trays have been supplied
with your Tango 40, so use the one with the notch at the
front that will hold the fuel tank in position.
Section 3A: Two-Stroke Engine Installation

17
Required Parts
• Fuselage • #4 washer
• Hook and loop strap
•Plywood battery tray (electric)
• 6-32 x 2 1/2-inch machine screw (4)
• 4-40 x 1/2-inch socket head screw
• 1-inch (25mm) aluminum motor spacer (4)
• 21/2-inch (64mm) spinner w/hardware
Required Tools and Adhesives
• Phillips screwdriver • Threadlock
• Hobby knife • Soldering iron
• Solder • Drill
• Hex wrench: 3/32-inch
• Female Deans connector w/wire
• Male Deans connector
Step 1
Attach the X-mount to the back of the motor using the
hardware provided with the motor. Remember to put a
drop of threadlock on each of the screws to prevent them
from vibrating loose.
Step 2
Attach the motor to the firewall using the four
1-inch (25mm) aluminum motor spacers and four
6-32 x 1 1/2-inch machine screws.
Note: Use threadlock on the screws to
prevent them from vibrating loose in flight.
Section 3B: Electric Motor Installation

18
Step 4
Solder the appropriate connectors onto the speed control.
Step 5
Secure the speed control to the plywood battery tray
as shown. Make sure it will not move when installed
in the fuselage.
Step 6
Slide the plywood battery tray into the fuselage. Secure
the tray using a 4-40 x 1/2-inch socket head screw and
#4 washer.
Step 7
Connect the leads from the motor to the speed control.
Secure the wires so they will not interfere with the
operation of the motor.
Section 3B: Electric Motor Installation

19
Step 8
Remove the covering from the bottom of the fuselage to
allow for cooling air through the fuselage.
Step 9
Plug the motor into the speed control. Secure the
batteries using the hook and loop strap. Plug the speed
control into the receiver. Mount the speed control inside
the fuselage so it will not interfere with the installation
and removal of the batteries.
Note: Apply a piece of hook and loop (not
included) on the batteries and battery tray if
you find the batteries slide forward or aft.
Step 10
Turn on the radio system. Plug the batteries and speed
control together. Use the throttle on the transmitter to
check that everything is working correctly. Check that
the motor is rotating counterclockwise. If not, follow the
directions included with the speed control to correct the
situation.
Note: Always check that the motor will not
interfere with anything on your workbench.
Never operate the motor at full throttle without
a load. Simply use this to check the rotation
of the motor before installing the propeller.
Step 11
Install the propeller and spinner using the instructions
included with your particular motor.
Section 3B: Electric Motor Installation

20
Required Parts
• Fuselage • Wing
• Canopy • Hook and loop strap
• 1/4-20 x 2-inch nylon bolt (2)
Required Tools and Adhesives
• Canopy glue • Flat screwdriver
• Masking tape • 1/4-inch foam
• Hobby knife • Receiver
• Receiver battery • Switch harness
Step 1
Wrap the receiver and receiver battery in 1/4-inch foam to
protect them from vibration.
Step 2
Plug the throttle, elevator and rudder servo leads, as well
as the switch harness, into the receiver. Route the receiver
antenna to the rear of the fuselage. A tube has been pre-
installed for routing the receiver antenna wire.
Step 3
Place the receiver (both electric and glow) into the
fuselage on the top of the plywood tray. Use a hook and
loop strap to secure the battery to the tray as shown.
Note: When using an electric motor
and a receiver pack, place the pack
underneath the receiver to provide
more room for the motor batteries.
Note: In glow applications, the receiver
battery is placed on the bottom side of the
plywood tray, and the strap will go around
both the receiver and receiver battery.
Step 4
Mount the switch harness in the side of the fuselage. The
switch should be on the opposite side of the muffler when
using a glow engine.
Section 4: Final Assembly