1
R11 HB 3mm
Lightening holes are optional.
2#
HB 3mm
must fit in the slot
Note different joints!
Sand elliptic nose
12mm. Dont cover this width on bottom if you dont want removable tail. Commercial horn.
M
Cover tail with heat shrinkable modell covering (Oracover, Oraligt, Monocote, Ultracote...)
4
3 2 FR3 WP Ply 3mm
Motor mount FR2 PCB or Ply 2mm
FR4 WP Ply 3mm
must fit in the slot
Glue M3 nut
Build up from CNC MADE PARTS
20 5
4 FR5 WP Ply 3mm
Notes:
31
R8
PET plastic bottle
2#
remove bottom and throat
HB 3mm R7
Section 1-1
3 mm overlap
Cut to fit root airfoil
2#
HB 3mm wooden canopy plug
R6
2#
HB 3mm
wooden stick (handle)
make 12 pieces
RS1 4#
R4
HB 3mm
Piece of velcro or magnets
TOP VIEW
Optional vent holes.
scrap material (wood, styrofoam..)
aditional rib piece
Use protective hand gloves!
R5
2#
APPLY HEAT EQUALY ALL AROUND!
HB 3mm See note! R4
8(10#)
R3
2#
t
wing upper side straigh
HB 3mm APPLY HEAT TO THE ASSEMBLY (BOILING WATER, HEAT GUN, OWEN, GAS BURNER..)
WP 3mm
BE CAREFULL WITH HEAT. APLY HEAT ALL AROUND THE BOTTLE SURFACE EQUALY. BOTTLE WIL SHRINK TIGHTLY AROUND THE WOOD. WHEN FINISHED, COOL DOWN WITH WATER!
R2
2#
R1
2#
WP 3mm
cut
HB 3mm
Wing span: 1707 mm Wing area: 22,4 dm2 Wing AR: 13 Length: 835 mm RTF mass: 575g Wing loading: 26 g/dm2
e
d si
in
Make Fuselage rib FR2 to fit your motor attachment points and vent. holes.
B 4x31
Technical data
1700mm wing layout
36
Notes:
2#
4 85
21
FR6 WP Ply 3mm
Use glue or tiny screws
HB 3mm
19
Servo tray WP ply 3mm
343
HOW TO MAKE A CANOPY
R9
18
slot for elevator wire
Section 2-2
55
65
63 30
Number of ribs R4 depends of wing version: 1,5m span=8 ribs, 1,7m wingspan=10 ribs.
B 4x6
B 4x6
0 4x 1 HB
26
6
SIDE VIEW
19
Build up-NO CNC
1
Wing saddle doubler Ply 2mm 2#
HB 4x8
Section M-M
Edge of fuselage
18
HB 4
6
Elevator horn. PCB 1mm
2#
For poly wing (no ailerons) only
12 HB 4x
6
2
Cut to fit root airfoil
R10
20 0
Drill hole size to fit your bolts (read note bellow)
w
CUT ALONG RED LINE TO SEPARATE PLASTIC FROM PLUG.
th
id
Set gap between fin and elevator to ~0,5mm when aplying hinge tape
FR1 WP Ply or HB 3mm
2 piece wing
6
19
Left aileron servo
HB 4x12
t
BL motor
cu
164
th
40 cm servo wire extension (installed in wing!)
id
HB 4x6
w
Glue oposite tail sidewall (3mm) over assembly and let it dry.
8 mm preffered!
16
Section F-F
2 piece wing
simplified wing TE->fuselage transition
8 40
15 16
CNC MADE PARTS
14 Before shaping
Both sides covered with 1 mm balsa sheet. Note grain orientation on the side view!
E
D
C
After shaping
H
After shaping
G
F
test fir rear fuselage with front fuselage part. Sand joint if necessarry, for proper fit.
B A
airfoil HN 1036
E
6
D
C
removable elevator build up structure
3
4
F
After shaping Before shaping
Before shaping
Section K-K
G
35
1
Glue bowdens here inside the carbon tube!
de
HB 4x11
Route elevator pushrod tube into carbon tube, and glue vertical fin to assembly. Cover vertical fin with 1 mm balsa sheeting. Install and carve scrap balsa to create radiused boom-fin transition.
si
Section G-G
Bend to protect your eyes!!!
in
NOTE: check if your motor will fit on mount holes. If not, modify mount holes accordingly!
H
~45mm
36
After shaping
Wing span: 1562 mm Wing area: 20,2 dm2 Wing AR: 12 Length: 835 mm RTF mass: 550g Wing loading: 27 g/dm2
5
After shaping
Technical data
62
Before shaping
Light filler
HB 4x20
Before shaping
After shaping
Polydihedral, no ailerons wing layout Elevator saddle MUST be paralel with tail boom tube centerline.
74
Before shaping
Create a temporarily hook, to protect your and others eyes! (both pushrod ends)
15
HB 4x6
14
Left ~50 cm of pushrod free on this side.
Right aileron servo
4x8 Motor
Protect against disconecting!
After shaping
15
16 Make vertical fin with sheeting on just one side. Install elevator pushrod (0,6mm dia) and its bowden(2mm outer dia)
Ruder servo
16
Before shaping
Elevator servo
Section A-A
"Y" harness for use on RX with only 4CH
Slot for el. wires
Scratchbuilders (no CNC) can simplify joints (just straight!)
9
SB 4x6
Glue together one tail sidewall (3mm), up and bottom balsa (6mm) and a carbon tube.
BATTERY: LI-po 3S1P, 20C 800-1500mAh
Section B-B
8
17
Carbon tube 6/4mm L=45 cm, as tail boom. (Carbon arrow shaft..unidirectional extruded)
120
4
HB 4x6
Eletronic Speed Controller (ESC): 20-30A BEC 1,5-2A
Canopy
Glue 3 mm pieces into 6mm
SB 4x6
CH5 CH4 CH3 CH2 CH1
Make slots for elevator and rudder pushrods exit. Look at the plans for dimensions.
20 0
It is way more impotrant to make clean smooth outer surface of the fuselage, than just strickly hold with A,B,C... cross sections. Try to achieve smooth transitions from nose to the tail. Try to correct and smooth any visible imperfections on the outer surface.
Section C-C Section E-E
K
RIGHT AILE RUDD ELEV LEFT AILE THROTTLE
NOTE:
Section D-D
835 longer nose and BL motor mount provided
15 0
J
K
ESC 30A
8
Protect against disconecting!
25
40 cm servo wire extension (installed in wing!)
8
SOME RX HAD DIFFERENT OUTPUTS! CHECK MANUAL FOR YOURS! Reciever (RX)
Fuselage Assembly steps
MOTOR: max diameter 28mm kV 900-1100 ~18 A
87
WP 3mm, 2req.
Sanding round surfaces. Use sanding block, and later just sanding paper. Try to "feel" the contour with hands, and check irregularities against the light.
SUGGESTIONS:
11cm MAX.!!
Chamfer corners. Use plane and sanding block.
3
removable elevator build up structure simple wingtip
Li-po battery 11,1V
Plain box fuselage after glueing parts together.
J
HB
Note: glue elements on one sheet, sand wedge cross section, and the cover oposite side
2
Connector
Section H-H
Drill holes to fit your screws. balsa fillet
4 85
Ply 1mm
1
airfoil HN 1036
ROUGHLY CUT ALONG RED LINE, AND FINE TUNE ON THE MODEL.
CARVING A FUSELAGE CROSS SECTION:
NOTE: Paralel with wing saddle viewing from front!
00
Section J-J
ROUGH PIECE OF FUTURE CANOPY
3 35
If you not intend to make removable tail, you dont need to drill two holes fot the bolts. Othervise, use servo bolts with wide washer head and drill holes of those bolts diameter.
17
Glue: white glue or CA...which suit you best. Use of hard balsa for the spars is advicable for high speed flights. Note grain orientation! Use clear adhesive tape for the hinge (top&bottom). See manual for how to make hinge. Sand tail according to cross section M-M! Elevator has wedge section. Holes in the elevator are not necessary, but they can save some weight, and look sexy!
BEC 1,5-2A
Notes:
simplified wing TE->fuselage transition
Swap outermost wires if motor rotate wrong direction. Soldered joints
Note: elevator horn slot is placed slightly offset!) Adopt for type of horn you will use.
Speed regulator with BEC
M
1
BA
Glue both fuselage parts together and check aligment on the plans!
simple wingtip 164
10
835 longer nose and BL motor mount provided
10 HB 1mm BOTTOM WING SHEETING (#2 req.)
Make wider and sand off on wing after gluing.
42
SB 6 mm TOP REAR FUSELAGE COVER
t
50
18
wing upper side straigh
1560mm wing layout Technical data 19
87
Wing span: 1562 mm Wing area: 20,2 dm2 Wing AR: 12 Length: 835 mm RTF mass: 575g Wing loading: 27 g/dm2
Make wider and sand off on wing after gluing.
43
HB 1mm UPPER WING SHEETING (#2 req.)
36
20 0
15
0
5
74
62
15
7 35
HB 1mm BOTTOM WING ROOT SHEETING (#2 req.)
de
si
in w
HB 1mm UPPER WING SHEETING (#2 req.) OVER THE SERVO BAY
8 15
B 6 mm UPPER TAIL BOOM FILLER
airfoil HN 1036
SERVO COVER (2 req)
Ply 1mm 3 35
B 6 mm LOWER TAIL BOOM FILLER
2 piece wing 8
SB 6 mm FWD FUSELAGE SIDE
simplified wing TE->fuselage transition
40
HB 1mm BOTTOM WING SHEETING
HB 1mm UPPER&LOWER WING SHEETING (#8 req.)
NEXT TO SERVO (#2 req.)
th
id
HB 1mm RUDDER SHEETING (#2 req.)
14
removable elevator build up structure
164
simple wingtip
B 1mm Ply 1mm
11
16
Doubler if necessary (2 req.)
(1 req)
B 6 mm Upper nose (#3 req.)
HB 1mm UPPER WING ROOT SHEETING (#2 req.)
835 longer nose and BL motor mount provided 10 cm=100 mm
0
Make larger and trim at assembly.
HB 6 mm WINGTIP (#2 req.)
2 pieces lenghtvise grain 1 piece crossvise grain
9 SB 2 mm FUSELAGE BOTOOM LAMINATION (#2 req.)
NOTE: first lamination is with grains perpendicular to fuselage axis! Use this template.
HB 1mm VERT. FIN SHEETING (#2 req.)
1
2
0
3
1
Model:
Glue 1 mm scrap balsa over (bottom side only)
MATERIAL LEGEND:
glue
SB 3 mm TAIL BOOM SIDEWALL (#2 req.)
WP Ply B SB HB SP PCB
White Poplar Plywood Balsa wood Soft balsa wood Hard balsa wood Spruce wood PCB composite material
Drawing:
MS-UL-Design
4
5
2
6
7
8
3
9
10 cm
4"
GUPPY 2 Assembly drawing No1
02
Designed by Ultralajt, jan.2009 Note: Redrawn, aug.2012 Plans for personal use only. No commercial use allowed unless written permission from the author.
