THE WORLD MODELS Groovy 50 3A User manual

Wing Span
Wing Area
Flying Weight
Fuselage Length
53.5 in / 1360mm
536 sq in / 34.6sq dm
5.2 lbs / 2350g
53.5 in / 1360mm
Specifications
INSTRUCTION MANUALINSTRUCTION MANUAL
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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.
THE WORLD MODELS
MANUFACTURING CO. LTD.
FACTORY PRE-FABRICATED
ALMOST-READY-TO-FLY (ARF) SERIES
MADE IN CHINA
www.theworldmodels.com
0.52-0.70 cu.in. displacement 4-stroke
Requires : 5-channelradiow/5standardservos
* Specifications are subject to change without notice.*

P. 1
INDEXINDEX
BEFORE YOU BEGINBEFORE YOU BEGIN
PARTS LISTPARTS LIST
ASSEMBLYASSEMBLY
SAFETY PRECAUTIONSSAFETY PRECAUTIONS
P. 1P. 1
P. 2P. 2
P.3-P.10P.3-P.10
P. 10P. 10
BEFORE YOU BEGIN
Do not overlook this symbol!
Cut off shaded portion.
Ensure smooth non-binding
movement while assembling.
Apply instant glue
(C.A.glue, super glue.)
Apply epoxy glue.
Pierce the shaded portion
covering film.
Must be purchased separately!
Peel off shaded portion
covering film.
Pay close attention here!
Drill holes with the specified
diameter (here: 3mm).
3mm
Warning!
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 CA or 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.
Read through the manual before you begin,so you will have an overall idea of what to do.
1
2
3
Apply thread locker
Symbolsu sedthroughtoutthisin structionmanualcompriseofthefollowing:-
Assemble left and right
sides the same way.

Parts List
P.2
COVERING:-- COVERING:--
TOUGHLON STL100 WHITE
TOUGHLON STL360 VIOLET
TOUGHLON STL361 PURPLE
TOUGHLON STL511 PEARL FERRARI RED
TOUGHLON STL550 PEARL BLUE
TOUGHLON STL561 PEARL PURPLE
TOUGHLON STL100 WHITE
TOUGHLON STL360 VIOLET
TOUGHLON STL361 PURPLE
TOUGHLON STL511 PEARL FERRARI RED
TOUGHLON STL550 PEARL BLUE
TOUGHLON STL561 PEARL PURPLE
1. MAIN WING -- 1 pair
2. SCREW PM2x22mm -- 6 pcs
FUEL TUBE Ø6x5mm -- 4 pcs
CLEVIS -- 2 pcs
STRAPER -- 2 pcs
TRI-HORN M3x14mm (S) -- 2 sets
PUSHROD Ø1.8x130mm w/ Threads (For Aileron) -- 2 pcs
3. STABILIZER & ELEVATOR -- 1 set
FUESLAGE -- 1 pc.
4. VERTICAL FIN & RUDDER -- 1 set
5. TAIL LANDING GEAR -- 1 set
SCREW PA3x12mm -- 2 pcs
COLLAR Ø2.1mm w/ set screw -- 1 set
WHEEL Ø25mm -- 1 pc.
6. MAIN LANDING GEAR -- 1 pair
WHEEL PANTS -- 1 pair
SCREW PM4x35mm -- 2 pcs
M4 NUT -- 2 pcs
SCREW PA2.6x6mm -- 4 pcs
SOCKET HEAD SCREW M2.5x12mm -- 6 pcs
WASHER d2.5xD8mm -- 6 pcs
WASHER d4xD9mm -- 4 pcs
WASHER d3xD7mm -- 4 pcs
WHEEL Ø55mm -- 2 pcs
COLLAR Ø4.1mm w/ set screw -- 4 sets
PLATE 1mm -- 1 pair
7. SCREW PM2x25mm -- 3 pcs
M2 NUT -- 3 pcs
FUEL TUBE Ø6x5mm -- 2 pcs
CLEVIS -- 2 pcs
TRI-HORN M3x14mm (S) (w/ o-Basa For Rudder) -- 2 sets
RIGGING COUPLER Ø1.8x27mm w/ Threads (For Rudder) -- 2 pcs
COPPER TUBE d2.5xD3.2x8mm (For Rudder) -- 2 pcs
WIRE Ø1x880mm (For Rudder) -- 2 pcs
8. SCREW PM2x20mm -- 6 pcs
FUEL TUBE Ø6x5mm -- 2 pcs
CLEVIS -- 2 pcs
TRI-HORN M3x14mm (S) -- 2 sets
PUSHROD Ø1.8x680mm w/ Threads (For Elevator) -- 2 pcs
9. ENGINE MOUNT PL5111050 -- 1 set
SOCKET HEAD SCREW M4x22mm -- 4 pcs
WASHER d4xD9mm -- 4 pcs
10. FUEL TANK 320cc -- 1 set
BALSA 8x8x89mm (For Fuel Tank Position Fixing) -- 1 pc.
RUBBER BAND -- 2 pcs
11. SCREW PM3.5x30mm -- 4 pcs
M3.5 NUT -- 8 pcs
WASHER d3.5xD8mm -- 8 pcs
THROTTLE PUSHWIRE Ø1.2x370mm -- 1 set
Plastic tube d2xD3x185mm -- 1 pc.
12. LINKAGE CONNECTOR Ø2.1mm -- 1 set
13. FUEL TUBE Ø6x5mm -- 1 pc.
STRAPER -- 1 pc.
PUSHROD CONNECTOR -- 1 set
POSHROD Ø1.8x112mm (For Elevator Servo) -- 1 pc.
COPPER TUBE d2.5xD3.2x8mm (For Rudder) -- 2 pcs
RIGGING Z BEND Ø1.8x27mm (For Rudder) -- 2 pcs
PLYWOOD 5x61x89.5mm (For Rudder Servo) -- 1 pc.
BALSA 6x6x61mm (For Rudder Servo Stand) -- 2 pcs
SPONGE 10x80x200mm -- 2 pcs
14. SCREW PWA2.6x12mm -- 4 pcs
SILICON GROMMET d1.5xD6.5mm -- 4 pcs
COWLING -- 1 set
TRANSPARENT 3DTEMPLATE -- 1 pc.
SPINNER Ø57mm -- 1 set
15. SCREW PM3x18mm -- 1 pc.
SCREW PA3x18mm -- 1 pc.
WASHER d3xD7mm -- 2 pcs
WING TUBE D16x595mm -- 1 pc.
16. CANOPY -- 1 pc.
SCREW PWA2.3x8mm -- 4 pcs
SCREW PM3x16mm -- 2 pcs
SILICON GROMMET d1.5xD6.5mm -- 4 pcs
WASHER d3xD7mm -- 2 pcs
DOUBLE-SIDED TAPE -- 1 pc.
17. DECALS -- 1 set

Aileron Servo
2
PM2x22mm Screw
4
Bottom View
Aileron Servo Lead
Main Wing
1
Bottom View
A p p l y i n s t a n t t y p e C A
g l u e t o b o t h s i d e s o f
e a c h h i n g e .
Stabilizer / Elevator
3
Apply i nstant t ype C A glue t o b oth s ides
of e ach h inge.
Ø1mm pilot holes for World Models tri-horn are pre-drilled. Ø1mm pilot holes for World Models tri-horn are pre-drilled.
Please look for pin-hole marks at under side of control surfaces.Please look for pin-hole marks at under side of control surfaces.
P. 3
COMPLETED
AA'
A=A'
(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.
Ø1.8 x130mm
Pushrod
2mm
Fuel Tube
Ø6x5mm
straper
1mm
PM2x22mm
Clevis
Tri-h orn
M3x14mm

5Tail Landing Gear
2.1mm Collar
2
PA3 x 12mm Scre w
3 x 3mm Set Screw
PA3 x 12mm
Vertical Fin & Rudder
4
A = A'
A A'
Apply instant type CA glue to both
sides of each hinge.
2.1mm Collar
1.5mm
2.5mm
2
d4 x D9mm Washer
M4 Nut
4.1mm Collar
PM4 x 35mm Screw
4
6
2
4
2
4
M2.5 x 12mm SocketHeadScrew
PA2.6 x 6mm Screw
d2.5 x D8mm Washer
6
d3 x D7mm Washer
4
P.4
Main Landing Gear
6
d2.5x D8mm Washer
Bottom View
M2.5 x 12mm
PM4 x 35mm
d4 x D9mm Washer
M4 Nut
M3x3mmSet Screw
4.1mm Collar
Pla te1mm
Completed
1mm
d3 x D7mm
Washer
PA2.6 x 6mm
Front

P.5
Rudder Pullwire
7
8Elevator Pushrod
Ø1mm pilot holes for World Models tri-horn are pre-drilled. Ø1mm pilot holes for World Models tri-horn are pre-drilled.
Please look for pin-hole marks at under side of control surfaces.Please look for pin-hole marks at under side of control surfaces.
PM 2 x 20mm Screw
39mm39mm
146mm
Elevator Pushrod
1.8x 685mm
Fuel Tube
Ø6x5mm
PM 2 x 20mm
Tri-horn
M3 x14mm
2mm
9Engine Mount
d4xD9mm Washer
Engine Mount
PL5111-050
Apply thread locker.
Blind nuts are off-centered to keep
the spinner at the fuselage axis.
PM2x25mm
M2 Nut
21 mm0
8 mm8
PM2x25mm Screw
3
M2 Nut
3
19 m
5m
88 mm
Tri-h orn
M3 x14mm
M4x 22mm SocketHeadScrew
4
d4 x D9mm Washer
4
M4x 22mm
Ø1mmpilotholesforWorldModels
tri-hornarepre-drilled.Pleaselook
forpin-holemarksatundersideof
controlsurfaces.
Clevis

P.6
Fuel Tank
10 Fuel Tank 10
Installed Balsa 8 x 8 x 89mm
(For fuel tank position fixing)
Fuel Tan k
320c c
Rubber Band
Fuel Tank
320cc Installed Balsa
8x8x89mm
Rubber Band
(For fuel tank
position fixing)
Bottom ViewTop View
Engine
11
8
PM 3.5x30mm Screw
M3.5 Nut
d3.5xD8mm Washer
8
4
PM3.5 x 30mm
d3.5 x D8mm
Washer
M3.5 Nut
d3.5 x D8mm
Washer
d2xD3x185mm
Plastic tube
Throttle Pushwire
1.2x370mm
m115 m
.5 in4
Fuel Tank
320cc
UP

P.7
T rott e Pus ireh l hw
3mm
Throttle Servo.
2mm
Servo Set
2mm
3 x 3mm Set Screw
Linkage Connector
M2 Nut
2mm Washer
12
2mm
2mm
Radio Equipment
13
Copper Tube
Rudder Pullwire
Elevator Servo
KM 2x8mm
2mm
Elevator Pushrod
Ø1.8X102mm
Fuel TubeØ6x5mm
14 Cowling
PWA2.6x12mm Screw
4
4
d1.5 x D6.5 mm
Sil ic on Gro mmet
PWA2.6 x 12mm
1mm
Spinner
d1.5 x D6.5 mm
Silicon Grommet
Install and arrange the servo as shown in the diagram.
Press down the center
1/3 portion
2
Pushrod Connector
Elevator Servo
ronF t
Please refer to the attached sheet for usage of the transparent 3D
template.
Please refer to theattached sheet for linkage connector installation.
Plywood5x61x89.5mm
Balsa6x6x61mm
ThrottleServo
RIGGINGZBEND
ThrottlePushwire
RudderServo
Straper
Balsa
6x6x61mm
Sponge

Wing Tube
D16x595mm
PM3x18mm
d3 x D7mm Washer
≈117mm
≈94mm
P.8
PA3x18mm
d3 x D7mm Washer
Left Right
Main Wing
15
d3 x D7mm Washer
PM3x18mm Screw
1
2
PA3x18mm Screw
1
Step 1. Insert the aluminum wing tube with the pre-drilled hole end into the right wing. Align
the lines marked at the wing root and wing tube, then apply the PM3 X 18mm machine screw
through the pre-drilled hole on top of the wing. ( please confirm the alignment of the hole by
putting a 2.5mm diameter rod through the pre-drilled wing hole before applying the screw )
The hole on the wing tube is pre-threaded, do not over tighten the PM3 screw, the set up is for
future removal of the wing.
Step 2. Install the right wing to the fuselage by inserting the wing tube (now attached
to the right wing) through the fuselage, then install the left wing.
Step 3 . M ake su re the wings are re stin g a gain st the fus elag e t ight ly. Loca te the pre -drilled
2.5mm hole at top o f le ft w ing, and drill along with 2.5mm drill bit until it passes throu gh t he
w i n g t u b e . A p p l y t h e PA 3 X 1 8 m m s e l f - t a p p i n g s c r e w.
Note : 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.
If removal of wing tube from left wing is also required, it is recommended that instead of applying
self-tapping screw in step 3, you pre-tap with M3 thread cutter and apply M3 machine screw.
Top View
Lead to Ailero n ServoLead to Ailero n Servo
2.5 mm

P.9
Wing Setting
17
A = A '
B = B '
C = C '
Canopy
16
PM3 x16mmPM3 x16mm
1mm
First insert the grommet tothe canopy then apply screw.
4
d1.5 x D6.5 mm
Sil ic on Gro mmet
PM3 x16mm Sc rew
2
d3xD7mm Washer
2
d3xD7 mm
Washe r
d3xD7 mm
Washe r
PWA2.3 x 8mm
d1.5 x D6.5 mm
Silicon Grommet
A A'
B B '
C C '
PWA2.3x8mm Sc rew
Adjustthe wingandfuselageconfigurationasshownin thediagrams.

35 m1 m35 m1 m
5.32 in.5.32 in.
Adjust the control throws as shown in the diagram.
These throws are good for general flying. You can
adjust according to your personal preference.
Elevator
Rudder
19
Ailerons
10mm
10mm
45mm
45mm
18mm
18mm
The ideal C.G. position is 135mm (5.32 in.) behind
the leading edge measured at where the wing
meets the fuselage. In order to obtain the C.G.
specified, add weight to the fuselage or move
the battery position. Check the C.G. before
flying.
# First time flyer should never fly by himself / herself. Assistance from experienced
flyer is absolutely necessary.
# Pre-flight adjustment must be done before flying, it is very dangerous to fly a badly
pre-adjusted aircraft.
# is specially designed to be powered by 4c 0.52-0.70 engine,
using a more powerful engine does not mean better performance. In fact, over
powered engine may cause severe damage and injuries.
# Make sure the air field is spacious, never fly the plane too close to people and never
get too close to a running propeller.
# If you find wrinkles on the covering as a result of weather changes, you can use hot iron
to remove the wrinkles. Please begin with lower temperature setting and gradually raise
the temperature until the wrinkles are gone. Too hot an iron may damage the covering.
# Check and re-tighten up all factory assembled screws, use thread locker if necessary.
P.10
Important Safety Precautions
A1890710

12
34
Usage of the transparent 3D template
This transparent 3D template
is used for position guidance
of the actual cutting of the
pre-painted cowling.
Simply cut the transparent 3D template to fit your engine and
exhaust pipe, then slide onto the actual cowling and use as
template to mark the openings required for final cutting.

LINKAGE CONNECTORLINKAGE CONNECTOR
HW7111050 & HW7111060
Drill 2mm hole at servo horn.
Insert linkage connector
into servo horn.
Make sure shoulder of
screw is cleared from
servo horn.
Add washer to reduce
play if necessary.
Shoulder
Tighten up the round nut
against the shoulder. Apply
CA or permanent thread
locker.
After fastening the round nut, make sure that
the linkage connector can rotate freely.
Product Registration Form (US Customers)
We would like to share with you any relevant information regarding your model, including
product news and free upgrade parts when applicable. Please fill in the following and send to
1.Name:
2.Address:
3.Phone #: e-mail:
4.Model:
Wing QC# Fuselage QC#
(QC numbers are stamped on wing and fuselage)
5.Date of Purchase:
6.Store Name:
Please call AirBorne Models at 925 371 0922 for any assistance in filling this form.
Thank you very much for purchasing our product.
AirBorne Models, 2403 Research Drive, Livermore, CA 94550 USA.

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