TA HORIZONS STOL X Installation guide
TA HORIZONS 40’’ STOL X
ASSEMBLY INSTRUCTION MANUAL
Technical Data-
Wingspan : 40"
Length : 35”
AUW : 320-350g
(Depends upon the setup used)
Setup Recommendations (Not Included)-
Motor : 25-40G 1100-1500KV Outrunner
(T-Motor AM40 Recommended for Super Light Setup)
ESC : 20 amp
Servos : 4Pcs 9gms each
Propeller : 9-10” electric
Battery : 850-1000Mah 3S Lipo
Page 1
Page 2
WARNING INFORMATION & SAFETY INSTRUCTIONS
Thank you for choosing TA Horizons.
If you have any questions, please contact us aforementioned email address.
Please read the entire manual thoroughly before you begin
to assemble this model.
This R/C airplane is not a toy! Read and understand the entire manual before assembly. If
misused, it can cause serious damages to life and property. Fly only in open areas. If you
are not an experienced pilot and airplane modeler you must take the help of an experienced
pilot or an authorized flight instructor for the building and flying of this model aircraft.
These instructions are suggestions only on how to assemble this model. There are other ways &
methods also to do so. TA Horizons has no control over the final assembly because it specifically
depends upon the knowledge and experience of the person involved directly in its handling,
or the manner in which the model is assembled, radio gear installed, and electronic parts are used
and maintained. Thus, no liability is assumed or accepted for any damages resulting from the use
of the assembled model aircraft. By the act of using this user-assembled product, the user accepts
all the resulting liabilities. In no event shall TA Horizons’ liability exceed the original purchase price of
the kit.
The user is advised to comply with all local laws and regulations. TA Horizons will have no
responsibility over the user assembled product and its end use. TA Horizons has the right to change
any content on the website, product information brochure, or the manuals, at any point of time
without any prior notice.
TA Horizons checks each plane before shipping to ensure that each kit is in fine condition. We
have no bearing on the condition of any component parts damaged by use, modification, or in
assembling of the model. Inspect the components of this kit upon receipt. If you find any parts
damaged or missing, please contact TA Horizons immediately. We will not accept the return or
replacement of parts on which assembly work has already begun.
Our goal is to bring to you the best in quality and state of the art radio controlled aircrafts.
For those who demand the ultimate in precision, or for those who are just a weekend flyers and
want to feel good about their flights, our planes are in development from many months and
tested to ensure that these aircrafts will give you the best possible performance. We sincerely
hope that our products can provide the same thrill to you that we experience in this hobby.
Page 3
Kit Contents
1. EPP Parts
3. HD EPP Wheels
2. Hardware / Small Parts
1
2
3
4
5
6
78
1
2
3
4
5
6
7
8
Polycarbonate parts
Fuselage assembly jig
Wing assembly jig X 2
150mm velcro
25cm heat shrink tube
Z bends & straight wire X 4
3D printed wheel bracket X 2
Pushrod stoppers X 4
Hardware Parts
1
2
3
4
5
6
Fuselage
Wings
Horizontal stabilizer
Horizontal profile section
Wing truss supports X 2
Landing gear cover
EPP Parts
1
2
3
4
5
6
1
2
3
1
2
3
HD EPP wheels X 4
50mm Metal Wire
60mm CF strip
HD EPP Wheels
4. Carbon Rods / Strips / Tubes
1
2
3
4
5
1
2
3
6X1.5mm 1000mm L CF wing spar
1.5mm CF Control rods
RUD 430mm L X 1
ELE 330mm L X 1
AIL 120mm L X 2
Undercarriage sq.tube
D 2x3mm L 225mm X 2
4Wing Truss Rods
L 330mm D 1.2mm X 4
5Fuselage truss rods
150mm L 1.2mm D X 12
120mm L 1.2mm D X 8
100mm L 1.2mm D X 2
Carbon Rods / Strips / Tubes
Please Note: After removing kit from shipping
box, lay each piece flat on a hard surface, this will
allow the airframe to straighten out if lightly bent
from shipping. Do not worry since EPP is very
pliable and can be bent back if out of shape.
Double check that you have all the above
pictured items. If any of the airframe or hardware
items are missing, contact TA Horizons before
starting your build.
Page 4
TOOLS AND BUILDING MATERIAL REQUIRED
• Heat Gun
• Tape Measure and Ruler
• Black Sewing Thread
• High Viscosity CA
• CA Spray Activator
• Hobby Knife w/new Blade
• Needle Nose Pliers
• Wire Cutters
• Low Temp Hot Glue Gun
• Scissors
• Small Phillips Screw Driver
• Thin CA
• Alenkey
Page 5
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
1 2
1. Building surface should be at least 2ft x 4ft and flat, Use a wax
paper over the surface to avoid sticking EPP on it when gluing.
2. locate the hinged items as shown above,
Bend them back on to each other as shown and let set for at least 2
hours. This will help to loosen up the movement of the surface.
(This is mandatory step)
3. Make a neat line of hot glue over any old credit Card and spread it
over the hinge line show in the Next picture.
4. It is very important to put glue on card first and then Spreading a thin
layer over the hinge line otherwise If put directly over foam you might
end up melting EPP.
5. It is not required to put glue all the way to hinge line Just a inch of
glue on both inboard and outboard of the Surface will do the job.
6. Optionally one can clean up the rough edges using the sharp knife
for better cosmetic finish.
3 4
5 6
Page 6
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
7. Lay down the shown parts on the flat surface with wax paper on it
and glue it together using the HV cyno and spray activator (Polyfix HV
CA recommended)
8. Apply a thin layer on gluing surface.
9. Use a spray activator (Kicker) to cure it.
(Do not touch the EPP Surface for Few Seconds After Spraying
otherwise it will Result Damaging the paint Surface)
10. Apply a thin layer of HV CA to the mating surfaces of the lower
vertical fuselage. Bring the two pieces together. You will have a little time
to work with and adjust for squareness
11. Put a drop of HV CA over the joints and spray everything together. 12. Glue the shown parts over the precut slots using the HV CA and
cure everything together using the kicker. Match the shown red area
with the precut slot in the EPP
7
10
11 12
8
9
Page 7
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
13. Here the supplied (3mm dia 225mm) tube and (2mm dia 50mm)
metal wire wheel shaft are glued and heat shrunken on the wheel
bracket.
14. Install the undercarriage that we have prepared like shown in the
above image.
15. Positioning of UC slots is with 3mm difference. Take reference from
the above picture for installation, make sure the wheel shaft is
perpendicular to the fuselage.
16. Rods bracing the fuselage are 1.2mm dia 150mm/100mm L.
Please refer to the above image for reference.
17.Carbon rod needs to sit couple of mm into the foam before gluing,
Just put a small drop of HV Cyno to glue it.
(Please Refer to above image for the reference)
18. Here is another view of fuselage truss.
13 14
15 16
17 18
Forward Slot
Backward Slot
150mm L150mm L
100mm L100mm L
150mm L150mm L 100mm L100mm L
150mm L150mm L 100mm L100mm L
Page 8
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
19. Locate the landing gear cover, make a V channel using the sharp
knife shown in the above image. (On Non-Printed side)
20. Glue it over the landing gear using the HV Cyno
21. Spread a thin layer of HV CA over the supplied HD EPP Wheels. 22. Join 2 wheels together like shown in the above image.
23. Glue the center rim over the wheels with center hole aligned using
HV CA (Do it for both the sides of wheels).
24. Install the wheel over the shaft, make sure it is spinning freely, after
this slide in the wheel stopper, Put a small drop of HV CA over the shaft
and wheel stopper joint.
19 20
21 22
23 24
Page 9
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
25. Here is the image showing both the wheels slid in and locked
using the stopper.
26. Now as we got the plane standing on its own, time to add the
servos.
27. Locate the servo trays and control horns, Please refer to above
image for selecting control horn for specific control surface.
28. Glue the elevator servo tray shown in the image over the precut
servo slot using HV CA.
29. Glue the rudder servo tray shown in the image over the precut
servo slot using HV CA.
30. Glue the elevator horn shown in the image in the precut control
horn slot using HV CA. Make sure it sits right to the bottom of EPP
Surface.
25 26
27 28
29 30
For ElevatorFor Elevator
For AileronsFor Ailerons
For RudderFor Rudder
Page 10
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
31. Screw the elevator servo in a direction in which the arm hub
matches the center line of pre cut elevator arm slot.
32. 47. Install the Z Bends on one side of all 4 control rods using the
thread and thin CA.
33. Cut about a inch of 2.5mm heat shrink tube and install over the
joints that we have done using the thread and CA.
34. Locate the servo arm extenders (4x single) Install the extenders
over the stock plastic servo arms using the sewing thread and thin CA.
35. With the jig in place, dry fit the control rod, cut it out 1 cm before it
meets the push rod stopper.
36. With the jig in place, dry fit the control rod, cut it out 1 cm before it
meets the push rod stopper.
CUT
31 32
33 34
35 36
Page 11
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
37. Shown above is the elevator linkage. Notice how the 3 guides (2 in
case of elevator) are slid over the linkage.
38. After this we have installed the straight wire on the other end.
39. With the servo centered, clamp straight wire in the pushrod
stopper using the allen key.
40. Above is the finished elevator linkage setup with the guides glued
into the fuselage and the elevator centered and clamped into the mini
pushrod stopper.
41. Install the rudder servo in place. 42. Locate the 60mm flat carbon strip and glue it on rear bottom part
of the fuselage shown in the above image.
37 38
39 40
41 42
Page 12
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
43. Once the aileron and elevator linkages are set up, use the same
process as gluing the bottom of the fuse to glue the top of the fuselage
into place.
44. . Now with the top portion installed glue the rear part to the flat
carbon rod that we glued earlier.
45. Install the rudder control horn in the precut slot like we did for
elevator horn. (Install it the opposite side of elevator horn)
46. Prepare the rudder control linkage using the same method done for
elevator, this time insert 3 guides.
47. Above is the finished rudder linkage setup with the guides glued
into the fuselage and the rudder centered and clamped into the mini
pushrod stopper.
48. Shown above is the 150mm carbon rod that will go on each side of
the fuselage. It will be used to strengthen the horizontal stab and vertical
stab
43 44
45 46
47 48
Page 13
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
49. Shown above is the 150mm carbon rod that will go on each side
of the fuselage. It will be used to strengthen the horizontal stab and
vertical stab.
50. Install the last 150mm rod to the bottom of the Fuselage shown in
the above image. Make sure the elevator movement is full both side
after installing this rod. (Any one side only)
51. Glue both the wings together. 52. Locate the supplied 6mm X 1000mm carbon spar.
53. Glue it to the precut spar slot using the HV CA and spray it to cure. 54. Make sure the spar is fully seated in the slot.
49 50
51 52
53 54
150mm L150mm L 150mm L150mm L
150mm L150mm L
Page 14
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
55. Glue the aileron servo tray and aileron horns shown in the image
over the precut servo slot using HV CA. Make sure the horn sits right to
the bottom of EPP Surface.
56. Above is the finished aileron linkage setup with the aileron centered
and clamped into the mini pushrod stopper. Use the same method we
did for elevator and rudder linkage setup.
57. Here is another view of aileron linkage setup. 58. Apply a thin layer of HV CA to the mating surfaces of the upper
vertical fuselage.
59. Use the supplied wing assembly jig to make sure the fuselage
stays in correct positing while glueing.
60. Apply a thin layer of HV CA on the joints for better reinforcement.
55 56
57 58
59 60
Page 15
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
61. With the fuselage Jig in place install the 2 (120mm L) carbon rods
on both sides of fuselage shown in the above picture. (Total 8 rods are
supplied)
62. Install other 2 rods (120mm) from the trailing side of wings to fuse,
like shown in the above image.
63. Here is another view. 64. (Optional) Install last 2 rods (120mm) from the leading edge side of
wings to fuse, like shown in the above image.
(Optional)
65. Locate the 330mm L X 4 rods for wing bracing along with the
piece of EPP for wing rod support. EPP support can be glued into the
pre cut slots in wings. Refer above image for wing bracing.
66. Make a small slot on bracing support using a sharp knife where it
meets the rod. Do it for both side.
61 62
66
63 64
20mm
1 L
20mm
1 L
12 L0mm
12 L0mm
1 m
20m L1 m
20m L12 mm L0
12 mm L0
65
33 mm L0
33 mm L0
Glue Here
Glue Here
Page 16
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
67. Make sure the carbon bracing is slid about a mm down into the
slots. Glue it using a HV CA.
68. Shown above is the wing/fuse support bracing glued to the
horizontal profile section of the fuselage.
69. Here is how it will look after all the bracing is done. 70. Install the motor mount using HV CA, Place adhesive on the inside
of the mount covering every spot, then place again on the front of the
fuselage making sure everything is flush and lined up correctly.
71. Shown above is the motor mounted to the provided motor mount. 72. Notice above the plate glued onto the side of the fuselage. This can
be used to mount the electronic speed controller
67 68
69 70
71 72
lu rG e he e
lu rG e he e
Page 17
The Build
Please Note: Few pictures shown below are of different plane and for reference purpose only.
73. The long piece of velcro along with the strapping velcro mounted,
above is the location of the battery for this setup.
74. Here is the complete picture of a receiver setup
75. Initial CG is located 240mm from the nose of the aircraft (Not from
the motor)
73 74
75
240mm
CONTROL THROWS
In order to achieve the control throws
as described for “Extreme & 3D”, it is
imperative that the control surface,
linkages, rod ends, etc, all move
freely over the entire range, including
range end points.
Failure to do so will result in damage
to either the servos or mechanical
components
Page 18
Thank You
Thank you for your purchase at TA Horizons. We sincerely hope that
our products can provide the same thrill to you that we experience in
this hobby. The motive of this project is to spread the outcome of
my love for teaching and share my knowledge and experience with
every enthusiast out there.
Please feel free to contact us regarding any type of question
about this kit.
Happy Landings,
Tanmay Agrawal
TA Horizons
Thank You..
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