THE WORLD MODELS Spot-On 50 User manual
A249HPO31231510
Warning! This model is not a toy.
It is designed for maximum performance. Please seek advice if one is not familiar with this kind
of engine powered precision model. Operating this model without prior preparation may cause
injuries. Remember, safety is the most important thing. Always keep this instruction manual at
hand for quick reference.
*Specifications are subject to change without notice.*
INSTRUCTION MANUAL
Wing Span
Wing Area
Flying Weight
Fuselage Length
53.5 in / 1360 mm
538 sq in / 34.7 sq dm
5.8 Ib / 2650 g
57 in / 1450 mm
Specifications
FACTORY PRE-FABRICATED
ALMOST-READY-TO-FLY(ARF)SERIES
MADE IN CHINA
The World Models
Manufacturing Co., Ltd.
www.theworldmodels.com
(A249H)
0.52-0.72 cu.in. displacement 4-stroke
requires: 4-channel radio w / 5 standard servos
A249HPO31231510
INDEX
BEFORE YOU BEGIN
BEFORE YOU BEGIN
PARTS LIST
ASSEMBLY
SAFETY PRECAUTIONS
P.1
P.2
P.3-P.10
P.11
Check all parts. If you find any defective or missing parts contact your local dealer. Please
DRY FIT and check for defects for all parts that will require CAor Epoxy for final assembly.
Any parts you find to be defective after the gluing process may be difficult to remove for
warranty replacement. The manufacturer will replace any defective parts, but will not extend
to the parts that are good before gluing to defective parts during assembly. Warranty will
not cover any parts modified by customer.
Symbols used throughout this instruction manual comprise of the following :-
Read through the manual before you begin, so you will have an overall idea of what to do.
1
2
3
P.1
Cut off shaded portion.
Ensure smooth non-binding
movement while assembling.
Apply instant glue
(C.A.glue, super glue.)
Assemble left and right
sides the same way.
Peel off shaded portion
covering film.
Pay close attention here!
Apply epoxy glue.
Must be purchased separately !
Drill holes with the specified
diameter (here: 3mm). Pierce the shaded portion
covering film.
3mm
Do not overlook this symbol !
Warning!
Apply thread locker
A249HPO31231510
P.2
Parts List
COVERING:--
TOUGHLON STLA24900R
TOUGHLON STLA24900L
TOUGHLON STL201 BLACK
TOUGHLON STL 490002
STRIPE FER.RED / WHITE (6cm)
1. STABILIZER & ELEVATOR -- 1 set
FUSELAGE -- 1 pc.
2. VERTICAL FIN & RUDDER -- 1 set
3. WIRE Ø1x1050mm (For Rudder) -- 2 pcs
EYE SCREW HW4202101 -- 2 pcs
CLEVIS PL4112103 -- 1 pc.
SCREW PM2x20mm -- 2 pcs
M2 NUT -- 2 pcs
HORN PL4113102 (Without Base, For Rudder) -- 2 pcs
FUEL TUBE D6x5mm -- 2 pcs
COPPER TUBE d2.5x3.2x8mm -- 2 pcs
4.
PUSHROD Ø1.8x832mm w/ Threads (For Elevator) -- 2 pcs
SCREW PB2x14mm -- 4 pcs
CLEVIS PL4112103 -- 2 pcs
HORN PL4113102 -- 2 sets
FUEL TUBE D6x5mm -- 2 pcs
5. TAIL LANDING GEAR -- 1 pc.
TAIL WHEEL Ø25mm -- 1 pc.
COLLAR Ø2.1mm w/ Set Screw -- 1 set
SCREW PA3x12mm -- 2 pcs
6. MAIN LANDING GEAR HW2403137 -- 1 pair
COLLAR Ø4.1mm w/ set screw -- 4 sets
SOCKET HEAD SCREW M2.5x12mm -- 6 pcs
SCREW PM4x38mm -- 2 pcs
QUICK RELEASE NYLON RIVET PL1208042 -- 4 sets
WASHER d2.5xD8mm -- 6 pcs
WASHER d4.5xD9mm -- 8 pcs
M4 NUT -- 2 pcs
MAIN WHEEL Ø55mm -- 2 pcs
WHEEL PANTS PC198WWPA -- 1 pair
ALUMINUM PLATE 1mm -- 1 pair
7.ENGINE MOUNT PL5111050 -- 1 set
SOCKET HEAD SCREW M4x25mm -- 4 pcs
WASHER d4.5xD9mm -- 4 pcs
FUEL TANK 320cc PL1111320 -- 1 set
CABLE TIE 1.5x5x400mm -- 1 pc.
DOUBLE-SIDED TAPE 40x100mm -- 1 pc.
LINKAGE CONNECTOR Ø2.1mm HW7111060 --1 set
SOCKET HEAD SCREW M3.5x30mm -- 4 pcs
M3.5 NUT -- 8 pcs
WASHER d3.5xD8mm -- 8 pcs
THROTTLE PUSHROD Ø1.2x410mm -- 1pc.
PLASTIC TUBE d2xD3x180mm --1pc.
COWLING --1 pc.
TRANSPARENT 3D TEMPLATE -- 1 pc.
SCREW PWA2.6x12mm -- 4 pcs
SILICON GROMMETS PL1265035 d1.5xD6.5mm -- 4 pcs
SPINNER Ø62mm PL2111062 -- 1 set
SCREW PA3x12mm -- 2 pcs
8. MAIN WING -- 1 pair
SCREW PWA2x8mm -- 8 pcs
SERVO MOUNTING PANEL PL5310000 -- 1 pair
9.
PUSHROD Ø1.8x80mm w/ Threads -- 2 pcs
HORN PL4113102 -- 2 sets
SCREW PB2x22mm -- 4 pcs
CLEVIS PL4112103 -- 2 pcs
FUEL TUBE D6x5mm -- 4 pcs
STRAPER PL4112102 -- 2 pcs
10. WING TUBE Ø16x465mm -- 1 pc.
SOCKET HEAD SCREW M3x20mm -- 1 pc.
SCREW PA3x20mm -- 1pc.
WASHER d3xD7mm -- 2 pcs
11.
FUEL TUBE D6x5mm -- 1 pc.
STRAPER PL4112102 -- 1 pc.
SPONGE -- 10x80x200mm -- 2 pcs
PUSHROD CONNECTOR PL4410010 -- 1 set
PUSHROD Ø1.8x65mm (For
Elevator
) -- 1 pc.
RIGGING Z BEND Ø1.8x27mm (For Rudder) -- 2 pcs
COPPER TUBE d2.5x3.2x8mm (For Rudder) -- 2 pcs
12. COCKPIT -- 1 pc.
13. CANOPY -- 1 pc.
SCREW PWA2.3x8mm -- 4 pcs
SILICON GROMMETS PL1265035 d1.5xD6.5mm -- 4 pcs
DOUBLE-SIDED TAPE 900mm -- 1 pc.
A249HPO31231510
Stabilizer & Elevator
1
Vertical Fin & Rudder
2
Rudder Pushrod
3
P.3
PM2x20mm Screw
2
C C'
C=C'
Ø1mm pilot holes for World Models horn are pre-drilled. Please look for pin-hole marks at
side of control surfaces.
Copper Tube
d2.5xD3.2x8mm
Eye Screw
Clevis
M2 Nut
Horn
Rudder pushwire
Ø1x1050mm
Fuel Tube
D6x5mm
PM2x20mm
(Stabilizer)
(Main Wing)
B B'
B=B'
Temporary install the main wing,
adjust leveling of the stabilizer
to make it as parallel to the main
wing as possible
Apply instant type CA glue to both sides of each hinge.
Apply instant type CA glue to both sides of each hinge.
M2 Nut
2
TWM PL8210010
CLEVIS WRENCH
A249HPO31231510
M2.5x12mm
d2.5xD8mm
Washer
PB2x14mm Screw
4
Elevator Pushrod
4
Tail Landing Gear
5
Main Landing Gear
6
P.4
Ø1mm pilot holes for World Models horn are pre-drilled. Please look for pin-hole marks at
under side of control surfaces.
2.1mm Collar
PA3x12mm
3mm set screw
1.5mm
PA3x12mm Screw
2
2.1mm Collar
1
PB2x14mm
Fuel Tube
D6x5mm
Clevis
Pushrod
Ø1.8x832mm
Horn
Ø25mm
M2.5x12mm
Socket Head Screw
4.1mm Collar
M4 Nut
6
4
2
d4.5xD9mm Washer
KA2.3x8mm Screw
d2xD8mm
Quick Release Nylon Rivet
8
4
4
d2.5xD8mm Washer
6
PM4x38mm Screw
2
Bottom View
PM4x38mm
Plate 1mm
d4.5xD9mm Washer
Wheel Ø55mm 3mm
Set Screw
4.1mm Collar
M4 Nut
Wheel
Pant
KA2.3x8mm Washer d4xD9mm
Quick Release Nylon Rivet
A249HPO31231510
P.5
Engine Mount PL5111050
M4x25mm
d4.5xD9mm
Engine
7
Throttle Pushrod
3x3mm
Washer
2mm
Washer
2mm
M2 Nut
Throttle Servo.
1.5mm
First insert the grommet to the
cowling then apply screw.
d1.5xD6.5mm
Grommet
Cowling
Fuselage
PWA2.6x12mm
PWA2.6x12mm Screw
4
d1.5xD6.5mm Silicon Grommet Screw
4
PA3x12mm Screw
2
PA3x12mm
Ø62mm Spinner
PWA2.6x12mm
d1.5xD6.5mm
PlasticTube
d2xD3x180mm
Throttle Pushrod
Ø1.2x410mm
Fuel Tank 320CC
Cable Tie 1.5x5x400mm
Throttle Servo
Double - sided Tape
115mm
4.5in.
M3.5 Nut
d3.5xD8mm
M3.5x30mm
1
2
3
4
5
Double - sided Tape 40x100mm
d4.5xD9mm Washer
4
M4x25mm
Socket Head Screw
4
M3.5x30mm
Socket Head Screw
4
M3.5 Nut
8
d3.5xD8mm Washer
8
A249HPO31231510
Apply instant type CA glue to both sides of each hinge.
P.6
Aileron Pushrod
9
PB2x22mm Screw
4
Bottom View
Ø1mm pilot holes for World Models horn are pre-drilled.
Please look for pin-hole marks at under side of control surfaces.
Straper Fuel Tube
D6x5mm
Aileron Servo
8
PWA2x8mm Screw
8
1.5mm
PWA2x8mm
Bottom View
1.5mm
Servo Mounting Panel
Servo lead
PB2x22mm
Fuel Tube
D6x5mm
Clevis
Pushrod
Ø1.8x80mm
Horn
A249HPO31231510
P.7
d3xD7mm Washer
2
Main Wing
10
PA3x20mm Screw
1
Insert carbon wing tube into right wing, apply the Socket Head Screw.
Insert the right wing tube through the Fuselage, and then install the left wing.
Press the wings against the fuselage then apply PA screw to the left wing.
It is recommended that the wing tube stays with the left wing. Removal of the
wings could be achieved by removing the right wing machine screw, the right
wing then the left wing with wing tube through the fuselage.
M3x20mm
d3xD7mm Washer
Wing Tube
d14xD16x465mm
PA3x20mm
d3xD7mm
M3x20mm
Socket Head Screw
1
A249HPO31231510
P.8
Radio
11
Plug in the Aileron Servos wire to channel 1
Plug in the Elevator Servo wire to channel 2
Plug in the Throttle Servo wire to channel 3
Plug in the Rudder Servo wire to channel 4
1
2
3
4
5
6
IDSET
Aileron Servo (L)
Throttle Servo
180mm Y-Cord
Aileron Servo (R)
Rudder Servo
Receiver
Elevator Servo
Elevator Servo
J1(Pushrod Ø1.8x65mm)
J1
J2
Fuel Tube D6x5mm
Straper
Pushrod Connector
Pushrod Connector
Wire Ø1x1050mm
Rudder Servo
Elevator Servo
Sponge
10x80x200mm
Receiver
Battery
Cockpit
12
Front CopperTube
Rigging Z Bend
Ø1.8x27mm
CopperTube
Wire
Pressdownthecenter
1/3portion
A249HPO31231510
Canopy
13
PWA2.3x8mm Screw
4
d1.5xD6.5mm Silicon Grommet
4
PWA2.3x8mm
Silicon Grommets
Canopy
Fuselage
P.9
Wing Setting
14
A=A` B=B` C=C`
C`
C
B B`
A`A
Double - sided Tape
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