Horizon Hobby Hangar 9 Solo User manual

Wingspan: ............... 58.25 in (1480mm)
Length: .................... 50.5 in (1284mm)
Wing Area: .............. 603 sq in (38.92 sq dm)
ASSEMBLY MANUAL
P-51 Mustang
Progressive Training System
Weight: ................... 6.5–7 lb (2.9–3.2 kg)
Radio: ..................... 4-channel w/5 servos
Engine: .................... Evolution TPS
Specifications

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Covering Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Contents of Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Field Equipment Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Optional Field Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Additional Required Tools and Adhesives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Before Starting Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Using the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Section 1: Charging the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Section 2: Assembling the Wing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Section 3: Installing the Landing Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Section 4: Installing the Tail Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Section 5: Installing the Propeller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Section 6: Installing the Flap Linkage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Section 7: Attaching the Wing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Section 8: Centering the Control Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Section 9: Checking the Control Surface Directions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Section 10: Checking the Control Throw Amounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Section 11: Adjusting the Throttle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Section 12: Balancing Your P-51 PTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Section 13: Flight Preparations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Section 14: Maintaining Your P-51 Mustang PTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Section 15: Progressing with Your Flying Skills. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Section 16: Adding a Flap Servo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Glossary of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Flying Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2005 Official AMA National Model Aircraft Safety Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
• Black HANU874
• White HANU870
• Silver HANU881
• Dark Yellow HAU889
Table of Contents
Covering Colors

3
Replacement Parts
1. Fuse w/o Radio or Engine HAN2826
2. Wing w/Aluminum Tube HAN2827
3. Belly scoop HAN2828
4. Tail set HAN2829
5. Canopy HAN2830
6. Cowl HAN2831
7. Landing Gear Set w/Wheels
and Speed Brakes HAN2832
8. Aluminum Wing Tube HAN2833
9. Droops HAN2835
10. Exhausts HAN2836
11. Speed Brake Set HAN2838
12. Propeller EVOE100P
Items not shown
Pushrod Set HAN2837
Decal Set HAN2834
Contents of Kit
1
2
3
4
56
7
8
9
9
11
12
10

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Field Equipment Required
• Fuel (10%–15% nitro content)
• Glow Plug Wrench (HAN2510)
• Glow Plug Igniter with Charger (HAN7101)
• Glow Plug (HAN3001/3006)
• Manual Fuel Pump (HAN118)
or
• Start-Up Field Pack (HANSTART)
Optional Field Equipment
• 4-Way Wrench (DUB701)
• Fieldmate (HAN117)
• Cleaner & towels
• Extra Glow Plugs (HAN3001/3006)
• Blue Block After Run Oil (EVOX1000)
• Power Panel (HAN106)
• 12V 7Ah Sealed Battery (HAN102)
• PowerPro 12V Starter (HAN161)
• Flat blade screwdriver
• Hex wrench: 3/32” or 2.5mm
• Felt-tipped pen
• Adjustable wrench
• Phillips screwdriver
• Pliers
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.
Additional Required Tools and Adhesives
Warning

5
Before beginning the assembly of your P-51 Mustang PTS, 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 the final user-assembled product. By the act of using the product, the user
accepts all resulting liability.
Once assembly of the model has been started, you must contact Horizon Hobby, Inc. directly regarding any warranty
question that you have. Please do not contact your local hobby shop regarding warranty issues, even if that is where you
purchased it. This will enable Horizon to better answer your questions and provide service in the event that you may need
any assistance.
If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is advised to return
this kit immediately in new and unused condition to the place of purchase.
Horizon Hobby Service Department
4105 Fieldstone Road
Champaign, Illinois 61822
[phone]
horizonhobby.com
HAN100 – Heat Gun
HAN150 – Covering Glove
HAN101 – Covering Iron
HAN141 – Sealing Iron Sock
Before Starting Assembly
Using the Manual
Warranty Information

6
Before starting the assembly of your
P-51 Mustang PTS, open the radio box and read
the included instructions. Directions on the features,
specifications, controls, functions, charging, and other
useful information is contained in this manual.
To charge the radio, you will need to remove the charger
and follow the radio instructions. The charge lead for
the receiver battery is located in the fuselage of your
P-51 Mustang PTS, and has two wires. The charger will
connect to this lead as shown.
Note: There are two other leads that are for the
aileron servos to plug into. The charger should
not be connected to these plugs.
Section 1: Charging the Batteries

7
Items required:
• Left wing panel • Right wing panel
• Aluminum wing tube • Nylon strap
• #4 x 1/2" wood screw (2)
 Step 1
Locate the aluminum wing tube. Slide the tube into one
of the wing panels. Do not force the tube, as it will slide
easily to its correct depth.
 Step 2
Slide the remaining wing panel onto the aluminum
wing joiner tube. As the panels get close, make sure the
alignment pin goes into the hole.
 Step 3
Slide the panels tightly together, guiding the servo wires
out of the way. Use a nylon strap and two #4 x 1/2" sheet
metal screws to secure the two wing panels together.
 Step 4
If you are not planning on taking your wing apart, a piece
of covering has been supplied to cover the center joint.
You will need to use a covering iron to apply the covering
to the center joint.
Section 2: Assembling the Wing

8
Items Required
• Assembled wing • Landing gear strap (4)
• Right landing gear • Left landing gear
• #4 x 1/2" sheet metal screw (8)
  Step 1
Locate the left landing gear strut. The speed brake is
already attached, and may need to be slid towards the
wheel for installation. Slide the strut into position on the
bottom of the wing. The wheel will be towards the leading
edge (front) of the wing when installed correctly. Press the
landing gear into the groove of the landing gear mount.
  Step 2
Locate two landing gear straps and four #4 x 1/2" sheet
metal screws. Use a medium Phillips screwdriver to attach
the landing gear straps using the screws. Tighten the
landing gear straps until they pull the landing gear into
the groove, flush with the bottom of the wing.
Note: Use care not to over-tighten the screws
and damage the landing gear mount.
  Step 3
Turn the speed brake so the edge near the landing gear
strap is in front of the strap. Slide the speed brake as far
as it will go towards the wing. The landing gear strap will
act as a stop, preventing the speed brake from rotating
during flight.
 Step 4
Repeat Steps 1 through 3 to install the right landing
gear strut.
Section 3: Installing the Landing Gear

9
Items Requires
• Fuselage • Stabilizer/elevator
• Threadlock
• Pliers or adjustable wrench
 Step 1
Loosen the nuts on the bottom of the fuselage that are
holding the rudder/fin assembly onto the fuselage. Pull
the rudder/fin assembly straight up to remove them from
the fuselage. Use care not to damage the lower portion of
the fin or the fuselage fairing.
 Step 2
Locate the stabilizer/elevator assembly. Position the
stabilizer/elevator assembly so the control horn will face
down, away from the fin. The threaded rods from the
rudder/fin assembly will slide into the two holes in the
stabilizer. The fuselage fairing has been slid into position
on the fin in the photograph.
 Step 3
Apply a drop or two of threadlock to the exposed threads
of the threaded rods. Thread the nuts onto the rod,
tightening them snugly against the bottom of the fuselage
using pliers or an adjustable wrench. Do not over-tighten
the nuts.
Section 4: Installing the Tail Surfaces

10
Items required
• Fuselage • Propeller
• Spinner
• #4 x 5/8" sheet metal socket head screw (3)
• Exhaust stack, right and left
• #2 x 5/16" wood screw (4)
• Adjustable wrench
 Step 1
Remove the propeller nut and washer from the engine.
 Step 2
Slide the spinner backplate onto the engine shaft, and then
slide the propeller into position.
 Step 3
Slide the washer and thread the nut onto the engine shaft.
Rotate the propeller clockwise so it is resting against the
lugs of the spinner backplate. Use an adjustable wrench to
tighten the propeller nut. Do not use pliers, as the nut will
not be tight enough, and could come loose.
Note: It is suggested to read the engine
instructions included with your P-51 Mustang
PTS at this time to learn more on the care and
operation of your Evolution engine.
Section 5: Installing the Propeller

11
 Step 4
Locate the three #4 x 5/8" sheet metal socket head screws.
Position the spinner cone onto the spinner backplate,
making sure it keys into the backplate. Use the screws and
a 2.5mm or 3/32" hex wrench to secure the spinner cone
to the backplate.
 Step 5
Attach the exhaust stacks to the fuselage using the four
#2 x 5/16" wood screws.
Note: The exhaust stack for the right side
of the model is shorter than the left. This is
necessary to clear the muffler.
Section 5: Installing the Propeller

12
 Step 1
With the linkage in the forward (up) position, thread the
clevis until the flap is even with the wing trailing edge.
 Step 2
Once the flaps have been centered, disconnect the
clevis from the flap actuator and move the linkage to
the rear position.
 Step 3
Reconnect the clevis to the flap actuator. Slide the clevis
retainers onto the clevises to prevent them from opening
accidentally. The flaps will now be in the down, or
Training Mode.
Section 6: Installing the Flap Linkage

13
Items required
• Fuselage assembly • Wing assembly
• Radiator scoop
• 1/4-20 x 2" nylon bolt (2)
 Step 1
Locate the servo leads from the wing and plug them into
the leads for the ailerons located in the fuselage. These
leads are identical, so you can plug either of the aileron
servo leads into either of the extensions.
 Step 2
Guide the wing dowels at the front of the wing into the
holes located in the fuselage. Allow the wing to drop down
and rest in the wing saddle of the fuselage.
Note: Check to make sure the servo leads are
inside the fuselage and not caught between the
wing and fuselage.
 Step 3
Locate the two 1/4-20 x 2" nylon wing bolts. Slide the
bolts into the holes in the radiator scoop so the threads
are exposed.
 Step 4
Place the radiator scoop onto the wing, guiding the bolts
into the bolt holes in the wing. Use a flat blade screwdriver
to tighten bolts, securing the wing to the fuselage. It is
helpful to pull the back of the wing away from the fuselage
so you can guide the bolts into the holes in the fuselage
to start them threading into the holes.
Section 7: Attaching the Wing

14
Ailerons
Remove the packing foam from the aileron control horns.
Check to make sure the clevis is located in the outer hole
of the control horn. If not, slide the clevis retainer forward,
disconnect the clevis, connect it in the correct location,
and slide the clevis retainer back into position.
Connect the aileron servo leads as described in
the previous section. Center the aileron trim on
the transmitter.
Turn on the transmitter, then the receiver. Thread the clevis
as necessary until the aileron is even with the wing tip.
Elevator
Connect the elevator clevis to the center hole on the
elevator control horn.
Center the trim lever for the elevator on the transmitter.
With the radio system on, thread the clevis until the
elevator is aligned with the stabilizer. Slide the clevis
retainer onto the clevis to secure its location.
Section 8: Centering the Control Surfaces

15
Rudder
Connect the rudder clevis to the center hole on the rudder
control horn.
Center the trim lever for the rudder on the transmitter.
With the radio system on, thread the clevis until the
rudder is aligned with the fin. Slide the clevis retainer onto
the clevis to secure its location.
Section 8: Centering the Control Surfaces

16
Ailerons
Turn on the transmitter, then the receiver. Move the aileron
stick to the right, which is the input for a right turn. The
right aileron will move up, and the left aileron will move
down. If not, check the radio instructions on how to
reverse the direction electronically at the transmitter.
Elevator
With the radio system still on, pull back on the elevator
control stick to give an up elevator input. The elevator
should move up from center. If not, check the radio
instructions on how to reverse the direction electronically
at the transmitter.
Section 9: Checking the Control Surface Directions

17
Rudder
The final control surface direction to check is the rudder.
With the radio system on, move the rudder stick to the
right, this will make the plane turn right. The rudder
should deflect to the right as well. If not, check the radio
instructions on how to reverse the direction electronically
at the transmitter.
Note: Operating the functions at the
transmitter opposite as described will result in
the control surfaces moving opposite as well.
Checking the Control Surface Directions

18
The following section covers checking the amount of
throw each control surface has and how to increase or
decrease the amount of throw to match the throws listed
in the manual. In addition, you will check to make sure
each control surface is moving the correct direction when
operated from the transmitter.
After checking that the controls are moving in the correct
directions, the amount of the control movement must be
checked. By moving the control stick of each surface to its
full deflection, you will measure the amount the surface
has moved. By holding a ruler next to the surface and
establishing a reference, use the radio to make the surface
move and compare the measurements to those shown.
Hint: Place your ruler on a solid surface,
rather than hold it in the air, to take
measurements. This will guarantee your ruler
is not moving. If the ruler is moving you will
get inaccurate readings.
Note: If you have a fellow modeler with a
throw gauge that measures in degrees you can
borrow, the amounts are 12-degrees instead
of 1/2" for the elevator, 15-degrees instead of
7/8" for the rudder, and 10-degrees instead of
5/16" and 12-degrees instead of 3/8" for the
ailerons.
If the throws of the control surfaces are not moving the
amounts as described, you may need to change the Travel
Adjustment setting in the radio. To do so, read the section
in the radio manual on programming the radio.
Section 10: Checking the Control Throw Amounts

19
With the radio system on, move the trim lever and throttle
lever towards the bottom the transmitter. Look into the
carburetor to check that the barrel is closed.
Move the trim lever up towards the top of the transmitter.
The barrel in the carburetor should have an opening of
around 1/16".
Move the throttle stick towards the top of the transmitter.
The carburetor will now be in the fully open position.
If the throttle is not operating as described, you may
need to change the Travel Adjustment setting in the
radio. To do so, read the section in the radio manual on
programming the radio.
Note: Once all the radio adjustments are
complete, remember to turn off both the
receiver and the transmitter.
Section 11: Adjusting the Throttle

20
In order for your P-51 Mustang PTS to fly correctly, you
will need to check the balance of the plane. This is done
by supporting the aircraft either using your fingers, or by
using a balancing stand. Not checking the balance can
result in an aircraft that is difficult to fly, which can lead to
the possibility of crashing your model.
Marking the Balance Point
The first step in balancing your P-51 Mustang PTS is to
mark the location for the balance point. Measure back
4 1/2" against the fuselage to the very front edge of the
wing, which is where the wing plugs into the fuselage.
Mark the location on both sides of the fuselage using a
felt-tipped pen to mark the balance location.
Lifting the Model and Observations
The P-51 Mustang PTS is balanced using either your
fingers or a balancing stand. The stand in the photo was
made from a dowel rod and a flat piece of wood. The
dowel was cut down and holes drilled in the wood, then
the dowel plugged into the wood. Use pencil erasers to
prevent the ends of the dowel from damaging your wing.
Place or lift the airplane so it is supported at the marks
made in the previous step. The plane will rest level when
balanced correctly. If not, weights must be added to
correct any balancing problems.
Balanced Correctly
Nose Heavy – Add Weight to Tail
Tail Heavy – Add Weight to Nose
Section 12: Balancing Your P-51 PTS