Hobby King Estrella Sport-50E User manual

The new Estrella Sport-50E ARF, was designed in an extremely lightweight structure, the all wood
airframe with refreshing colors cover. Low-wing design is easy to fly for training. This is the electric
motor assembly manual, but we still provide the engine mount and the fuel tank spare parts. In case
when you became a good player you can change to the methanol engine power.
The Estrella Sport-50E will bring you the flying sky, if you want to fly and just do it.
.....without any aerobatic limit when you fantasy to do it !
Estrella Sport
ARF
Wingspan:
Length:
Wing Area:
1500mm (59in)
1322mm (52in)
40.8 sq dm
2.5-3.0kg(5.5-6.5lb)
4-channel w/4-5 servos
40-52 2-stroke; 56-82 4-stroke; Power 46
Weight:
Radio:
Engine:
Specifications:

Table of contents
Required radio, motor and battery
Additional required items, tools and adhesives
Warning
Before starting assembly
Using the manual
Section 1 – ailerons installation
Section 2 – aileron servo & control horn installation
Section 3 –elevator installation
Section 4 –rudder installation & tail wheel installation
Section 5 –landing gear & wheels installation
Section 6– elevator servo & control horn installation
Section 7 – rudder servo & control horn installation
Section 8 – electric motor installation
Section 9 – electronic speed controller and his switch and battery installation
Section 10 – final radio installation
Section 11 – wings installation
Section 12 –cockpit canopy installation
Section 13 – cowl installation
Control throws
Rates and expos
Center of Gravity(CG)
Range test your radio
Age requirements
Safety, Precautions and Warnings
.....................................................................3
...................................................3
.........................................................................................................3
..................................................................................3
............................................................................................4
.........................................................................5
............................................6
.......................................................................8
.......................................10
...................................................12
.........................................15
..........................................18
..............................................................20
.....22
..................................................................24
........................................................................24
..........................................................25
..........................................................................26
..............................................................................................27
............................................................................................28
.....................................................................................28
...................................................................................28
...........................................................................................28
....................................................................28

3
Estrella Sport
This RC aircraft is not a toy!
If misused, it can cause serious bodily harm and damage to property
Fly only in open areas, preferably in official flying sites, following all instructions included with
your radio and motor
Before starting the assembly of your Little Estrella Sport-50E, remove each part from its bag and
protection for a prior inspection Closely inspect the fuselage, wing panels, rudder, and stabilizer for
damage. If you find any damage 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 covering material overlap to prevent separating the covers.
Radio equipment:
• 6-channel radio or greater with compatible receiver
• Digital Sport Servo (5 for gas version or 4 for EP version)
• 6-inch Servo Extension (2)
• Y-Harness
• Servo lead Extension (2) for receiver to aileron servos
• Radio on/off switch
• Receiver battery, 2000mAh and up
Recommended electric motor for best performance:
• Turnigy G46 Brushless Outrunner 670 KV G46-670
• Aerostar 60amp electronic speed controller with 5A BEC (2-6S)
• Turnigy 4000mAh 4S 30C Lipo Pack
• Aerostar Electric Series Wood Propeller 13x8
Additional required item, tools and adhesives
Required radio, motor and battery
Tools:
• Drill
• Drill bits: 1,5mm, 2mm, 3mm, 5.3mm
• Phillips screwdriver
• Hobby knife
• Sanding paper
• Masking tape
• Soldering iron
• Socket head screw wrench:1.5mm 2.5mm 3mm
Adhesives:
• thin CA
• medium CA
• 30min Epoxy adhesive(AB)
Warning
Before starting assembly

4
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 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.
Or carbon
fiber wing
tube
M3×12mm（12.9）Socket Head Screws 6pcs
T2*8mm self-tapping screw 4pcs
Main landing gear system parts
T2*8mm self-tapping screw 3pcs
1"PU tail wheel 1pcs
Tail wheel system parts
260cc fuel tank
Throttle control lever2*460mm*2mm one side with screw
Magic Tape25*160mm 2pair
Magic Tape with adhesive tape25*80mm 2pair
2mmBall Joints(with balls) 1pcs
Linkage Stoppers “PRC”1set 2mm
Motor and Accelerator system parts
2mmBall Joints(with balls) 4pcs
Carbon fiber main wing tube 1pcs
M2*60mm push rod with two side screw 2pcs
M2 self lock nut 4pcs
M6*30mm Nylon screw 2pcs
Main wing system parts
Elevator system parts
Rudder system parts
T2*8mm self tapping screw 12pcs
Extension Lead Keeper2pcs
Other parts
Estrella Sport-50E
Parts
M2*10mm Socket Head Screws 4pcs
2.25"PU wheel 1pair
2mmTail Wheel Bracket Wire 1pcs
Φ2.1mm Wheel Collar with Grub Screw 2pcs
Split Engine Mounts
53mm*88mm 1pair
M3*20mm Machine Screws 4pcs
M3 Blind Nuts 4pcs
1.5mmEpoxy Horn 2pcs
0.2mm AC Hinges 20pcs
Hexagon aluminum post 4.2*47mm 4pcs
Socket Head Screws M4*60mm 4pcs
M4 Blind Nuts 4pcs
M3*25mm(12.9�）
Socket Head Screws 4pcs
M3 Blind Nuts 4pcs
∮3.5mm washer 6pcs
Elevator control rod 2mm*690mm with one side screw 1pcs
Elevator connect wire
2.5mm*97mm
1.5mmEpoxy Rocker arm 2pcs Rudder control rod2mm*690mm with on side screw
swing keeper 1pcs
2*8*23mm
Throttle control lever plastics pipe 4*350mm 1pcs
pipe retaining bracket 1p cs
Servo retaining block 4pcs
wing retaining washer
Φ4.1mm Wheel Collar
with Grub Screw 4pcs
4mm*38mmSteel Axles with
M6self lock nut 2pcs
Aluminum landing gear1pair
2mmBall Joints(with balls) 1pcs
M2*10mm Socket Head Screws 1pcs
M2 self lock nut 1pcs
1.5mmEpoxy Horn 2pcs
2mmBall Joints(with balls) 1pcs
M2*10mm Socket Head Screws 1pcs
M2 self lock nut 1pcs
swing keeper 1pcs
2*8*23mm
1.5mmEpoxy Horn 1pcs
M2*10mm Socket Head Screws 1pcs
M2 self lock nut 1pcs
Using the manual
2mm Tail wheel bracket 1pcs
Contents of Kit and Parts Layout
1. Fuselage
2. Right & left wing panel with aileron
3. Cockpit
4. Horizontal tail
5. Elevator
6. Vertical fin
7. Rudder
8. Servo retaining plate
9. Wing retaining plate
10. Fuel tank, 260cc
11. Painted Cowling
12. White plastic spinner, 2 1/4-inch
13. Pine wood wing tube
14. Wheel cowling
15. Aluminium landing gear

Estrella Sport
5
Section 1 – ailerons installation
Required Parts
Main Wing （Right &Left）
Aileron（Right &Left）
Eight Hinges （Right &Left）
Tools and Adhesives
Hobby knife
Thin CA
□□step 1
Trial fit the four aileron hinges, included in the hardware pack, in their place and verify the correct
position and alignment of the aileron with the wing panel.
□□step 2
Carefully glue, with some drops of thin CA, each of the four hinges in the aileron.
□□step 3
Locate the aileron and carefully glue, with some drops of thin CA, the hinges into the wing panel.
□□step 4
Work the aileron up and down some times to work the hinges and check for proper movement.
□step 5
Repeat steps 1 through 4 for the remaining wing panel.

6
Section 2 – aileron servo & control horn installation
Required Parts
2ServoCoverPlate （Right&Left）
4ServoFixationBlock （Right&Left）
8T2*8mmSelf-tappingScrewWith ShoulderWasher（Right&Left）
2BlackEpoxyRockerArm （Right&Left）
2BlackEpoxyHornand pedestal （Right&Left）
2 F 2*60mm Pushrod(aileron) （Right&Left）
4BoltThroughBall （Right&Left）
4M2*10mmSocketHead Cap Screw （Right&Left）
4M2 Lock nu （Right&Left）
2Servowith hardware (Needto buy)
Tools and Adhesives
Hobbyknife Phillipsscrewdriver Drilland drillbits 1.5mm
ThinCA Socketheadscrew wrench1.5mm
□□step 1
Locate the following items included in the hardware pack and the servo.
□□step 2
Test the best position of the servo wood block, and glue it on the plywood as per picture showed.
□□step 3
Pre-install the rock-arm and the servo with theT2*8mm self-tapping screw as per picture.
Right and left are the same

Estrella Sport
7
□□step 4
Put the pre-installation servo into the wing panel,as per picture.

8
□□step6
Install the push and pull rod connecting rod,and use the four T2*8mm Self-tapping Screw With Shoulder
Washer to fix the servo cover plate.
□step 7
Repeat steps 1 through 6 for the remaining wing panel.
Section 3 – elevator installation
□step 1
Insert in the elevator the four hinges into their appropriate slots and verify the correct position and
alignment of the elevator with the stabilizer. Than put the horizontal tail into the fuselage tail and make
remark. Take out the horizontal tail and use a hobby knife to detruncate some covering. As per picture
shown.
1horizontal tai 1 Elevator 6 Hinges 1 Elevator connect steel wire
Required Parts
Tools and Adhesives
Hobbyknife ThinCA Straight Steel Ruler
Remark pen Hobby knife
A=A”A=A”
AA A”A”

Estrella Sport
9
□step 2
Insert the elevator Connector through the fuselage
□step 3
Insert the horizontal tail into fuselage space and locate the elevator hinges into the horizontal tail
□□step 4
Glue carefully the hinges in the horizontal tail and elevator with some drops of thin CA.

10
□step 5
Carefully check the balance of the horizontal tail with the fuselage, as per pictures.
□step 6
Once satisfied with the balance, glue carefully with thin CA the horizontal tail at the fuselage.
Section4 – rudder installation & tail wheel installation
Required Parts
3Self-tapping screw
□step 1
Locate the items included in the hardware pack.
Install the tail wheel
landing gear like the
picture
Hobbyknife ThinCA Straight Steel Ruler Marking pen Hobbyknife 30min Epoxy
1 Rudder 1 Vertical fin 3 Hinges 1Set tail wheel system 1 triangular light wood block
Tools and Adhesives

Estrella Sport
11
□step 2
Inset three hinges into the rudder ,than install the tail wheel system, as picture shown.
□step 3
Install the vertical fin to the fuselage, make sure the vertical perpendicular to horizontal tail.
□step4
Use a oil pen to make remark line on vertical fin, take out it and use a hobby knife to cut off the cover, as the
picture show.

12
□step5
Install the vertical fin to the fuselage and use CA the glue it well, as picture show.
□step 6
Install the rudder to the vertical fin, and glue each hinges with thin CA.
Section 5 – landing gear & wheels installation
Required Parts
1PairAluminumMain LandingGear
22.25”Pu wheel
2Wheel Pants
2Φ4mm Wheelaxle
4 F 4.1*10mmWheelCollars
2M6 Self locknut
4M3*3mmSet Screw
6M3*12 SocketHead Cap Screw
6 F 3.1mmFlatWasher
4T2*8 self-tappingscrewwith washer
Tools and Adhesives
Phillipsscrewdriver Drilland drillbits 1.5mm Threadlock
Socketheadscrewwrench1.5mm
Boxwrench:7/16-inch,1/2-inch
Hex wrenchor ball driver:1.5mm 3mm

Estrella Sport
13
□step1
Locate the following items included in the hardware pack.
□step 2
The main landing gear is mounted to the bottom of the fuselage using three M3*12 Socket Head Cap Screw
and threeΦ3.1mm Flat Washer. Apply a drop of threadlock on each of the screws. Use a 3mm hex wrench to
tighten the screws to secure the landing gear to the bottom of the fuselage.
□□step 3
Attach the wheel axle to the landing gear using a 7/16-inch box wrench (axle) and 1/2-inch box wrench (nut).
Make sure the nut on the axle side aligns with the landing gear as shown in the photo so the wheel pant can
be installed.
□□ step 4
Attach a Φ4.1*10mm Wheel Collars to the axle using a 3mm x 5mm set screw. Make sure to apply threadlock
to the screw so it will not vibrate loose. Position the collar so it is 7.5mm from the landing gear as shown and
use a #2 Phillips screwdriver to tighten the screw on the flat area of the axle. The position of the wheel may
need to be fine-tuned in the last step of this section.

14
□□step 5
Slide the wheel on the axle. Use a 5/32-inch wheel collar and a 3mm x 5mm machine screw to secure the
collar. Make sure to position the collar so the wheel can rotate freely on the axle. Use a #2 Phillips
screwdriver to tighten the screw on the flat area of the axle.
□□step 6
Use a 1.5mm drill bit to drill two holes on the wheel pant, and then use Phillips screwdriver to drive the 2
T2*8mm self-tapping screw with washer in to the pant to retaining it.
□step 7
Repeat steps 3 to 6 for the other side of the landing gear.

Estrella Sport
15
Section 6– elevator servo & control horn installation
Required Parts
1 F 2*690mm Pushrod (elevator) 1 N ylon Pushrod keeper
1M2*10mm Socket Head Cap Screw 1M2 Lock nut 1Black Epoxy Horn with pedestal
1Nylon ball joint
Tools and Adhesives
Socket head screw wrench 1.5mm Pliers 30min Epoxy Phillips screwdriver
Adhesive-Paper
□step 1
Locate the following items included in the hardware pack.
690mm
□step 2Cut off 1/2 and paint some mixing 30min epoxy around on the hornInstall the horn as
per picture.
Cut off1/2andpaint
some mixing30min
epoxy around on
the horn
□step 3
Up side down the fuselage and install the horn into the right elevator(front under the left elevator), as the
picture shown.
□step 4
Install the elevator servo in the fuselage,as the picture shown.

16
□step 5
Put elevator push rod(with screw thread side) through the elevator Pushrod tube hole, reach the
elevator horn position ,as picture shown.
□step 6
Use the nylon ball joint to proofread the distance between the rudder push rod and the horn, as picture shown.
□step7
Calculate the push rod length in need, than make a remark on the servo side, as picture shown.
□step 8
Take out the elevator push rod and use a pliers to bend the push rod to 90°�as the picture shown.

Estrella Sport
17
□step 9
Cut the redundant length of the push rod, as the picture shown.
□step 10
Install the elevator push rod into the push rod tube again, and use the Nylon Pushrod keeper to lock the push
rod in the elevator horn. Elevator
Rudder
□step 11
Up side down the fuselage and install the ball joint to the elevator push rod and the elevator, as the picture
shown.
□step 12
Keep the horizontal tail and the elevator in a level.

18
Section 7 – rudder servo & control horn installation
Required Parts
1 F 2*690mm Pushrod (elevator) 1 N ylon Pushrod keeper
1M2*10mm Socket Head Cap Screw 1M2 Lock nut 1Black Epoxy Horn with pedestal
1Nylon ball joint
Tools and Adhesives
Socket head screw wrench 1.5mm Pliers 30min Epoxy Phillips screwdriver
Adhesive-Paper
□step 1
Locate the following items included in the hardware pack.
690mm
□step 2
Install the horn as per picture.
□step 3
Install the horn into the right rudder right side, as the picture shown.
□step 4
Install the rudder servo in the fuselage,as the picture shown.
Cut off 1/3 and paint
some mixing 30 min
epoxy around on the horn

Estrella Sport
19
□step 5
Put rudder push rod(with screw thread side) through the rudder pushrod tube hole, reach the rudder
horn position ,as picture shown.
□step 6
Use the nylon ball joint to proofread the distance between the rudder push rod and the horn, as picture shown.
□step7
Calculate the push rod length in need, than make a remark on the servo side, as picture shown.
□step 8
Take out the rudder push rod and use a pliers to bend the push rod to 90°�as the picture shown.
□step 9
Cut the redundant length of the push rod, as the picture shown.
7-8mm

20
□step 10ElevatorInstall the rudder push rod into the push rod tube again, and use the Nylon Pushrod
keeper to lock the push rod in the rudder servo horn. Elevator
Rudder
□step 11
Up side down the fuselage and install the ball joint to the rudder push rod and the rudder horn, as the
picture shown.
Section 8 – electric motor installation
□step1
Find the parts in the hardware pack.
□step 2
According the motor size to draw the holes position on the fire wall, as the picture shown.