XF A-4 Skyhawk Designed By: Ben Harber Drawing By: Dan Sponholz Version: 0.7 Date: 2017.11.22 © 2017 Ben Harber. Plans provided free of charge. Copies allowed for personal use only. Not for commercial use. Template Version 4.0.2 SPECIFICATIONS DESCRIPTION IMPERIAL METRIC LENGTH 43.0 in 1092.2 mm CENTER OF GRAVITY CG 7 - 8 in 178 - 203 mm WING SPAN 30.0 in 762.0 mm WING AREA 303.0 in 2 19.5 dm 2 DRY WEIGHT 27.0 oz 765.4 g ALL UP WEIGHT AUW 45.0 oz 1275.7 g WING LOADING WL 21.4 oz/ft 2 65.4 g/dm 2 WING CUBIC LOADING WCL 14.7 RECOMMENDED SETTINGS THROW EXPO AILERON 12° - 20° 40% ELEVATOR 12° - 20° 40% RUDDER 12° - 20° 40% © 2017 Ben Harber. Plans provided free of charge. Copies allowed for personal use only. Not for commercial use. Template Version 4.0.2 Build Skill Level : Pilot Skill Level :
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XF A-4 Skyhawk
Designed By: Ben Harber
Drawing By: Dan Sponholz
Version: 0.7
Date: 2017.11.22
© 2017 Ben Harber. Plans provided free of charge. Copies allowed for personal use only. Not for commercial use.
Template Version 4.0.2
SPECIFICATIONS
DESCRIPTION IMPERIAL METRIC
LENGTH
43.0
in
1092.2
mm
CENTER OF GRAVITY CG
7 - 8
in
178 - 203
mm
WING SPAN
30.0
in
762.0
mm
WING AREA
303.0
in
2
19.5
dm
2
DRY WEIGHT
27.0
oz
765.4 g
ALL UP WEIGHT AUW
45.0
oz
1275.7 g
WING LOADING WL
21.4
oz/ft
2
65.4 g/dm
2
WING CUBIC LOADING WCL
14.7
RECOMMENDED SETTINGS
THROW EXPO
AILERON
12° - 20° 40%
ELEVATOR
12° - 20° 40%
RUDDER
12° - 20° 40%
© 2017 Ben Harber. Plans provided free of charge. Copies allowed for personal use only. Not for commercial use.
Template Version 4.0.2
Build Skill Level :
Pilot Skill Level :
© 2017 Ben Harber. Plans provided free of charge. Copies allowed for personal use only. Not for commercial use.
Template Version 4.0.2
A1
S1
S2
S3
S4
S5
S6
S7
S8
S9
B1
B2
B3
B4
A2
A3
A4
A5
A6
A7
A8
A9
B5
B6
B7
B8
A1
0A
11
A1
2
A1
3A
14
A1
5A
16
A1
7
B9
B10
B11
B12
A1
8A
19
A2
0
A2
1A
22
A2
3A
24
A2
5
B13
B14
B15
B16
A2
6A
27
A2
8
A2
9A
30
A3
1A
32
A3
3
B17
B18
B19
B20
A3
4A
35
A3
6
A3
7A
38
A3
9A
40
A4
1
B21
B22
B23
B24
A4
2A
43
A4
4
A4
5A
46
A4
7A
48
A4
9
B25
B26
B27
B28
A5
0A
51
A5
2
A5
3A
54
A5
5A
56
A5
7
B29
B30
B31
B32
A5
8A
59
A6
0
A6
1A
62
A6
3A
64
A6
5
B33
B34
B35
B36
A6
6A
67
A6
8
A6
9A
70
A7
1A
72
XF
A
-4
S
kyh
aw
k: S
he
et &
T
ile
K
ey
Drawing Key
A B C
A - FOLD (ABOVE) C - FOLD (COVER)B - FOLD (BESIDE)
50% SCORE CREASECUT
CAVITY
45° DOUBLE
BEVEL
45° SINGLE
BEVEL
EDGE
BEVEL
REMOVE
PAPER
REFERENCE/
OPTIONAL
LINE TYPE/COLOR
FOLD TYPES
© 2017 Ben Harber. Plans provided free of charge. Copies allowed for personal use only. Not for commercial use.
Template Version 4.0.2
SYMBOLS
MATERIAL
MODEL - VERSION
PART
NUMBER
QUANTITY
NAME
CENTER
OF
GRAVITY
(CG)
MATERIAL
MODEL - VERSION
NAME
GAUGE
NUMBER
XF A-4 SKYHAWK - v.0.7
1
1
FUSELAGE
FOAM BOARD
XF
A
-4 S
KY
HA
WK
- v.0.7
G1
DIH
ED
RA
L G
AU
GE
FO
AM
B
OA
RD
XF A-4 SKYHAWK - v.0.7
G2
INLET ANGLE GAUGE
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
G3
SQUARE
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
7
1
INLET FLOOR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
8
1
LOWER EDF MOUNT
FOAM BOARD
XF
A
-4 S
KY
HA
WK
- v.0.7
9 1
TH
RU
ST
T
UB
E M
ID
S
UP
PO
RT
FO
AM
B
OA
RD
XF A-4 SKYHAWK - v.0.7
10
1
UPPER EDF MOUNT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
11
1
NOZLE EXIT
FOAM BOARD
CM
IN
SHEET 1 OF 5
XF A-4 Skyhawk
Designed By: Ben Harber
Drawing By: Dan Sponholz
Version: 0.7
Date: 2017.11.22
© 2
01
7 B
en
H
arb
er. P
la
ns p
ro
vid
ed
fre
e o
f ch
arg
e. C
op
ie
s a
llo
we
d fo
r p
erso
na
l u
se
o
nly. N
ot fo
r co
mm
ercia
l u
se
.
Te
mp
la
te
V
ersio
n 4
.0
.2
XF A-4 SKYHAWK - v.0.7
2
1
ENGINE NACELLE RIGHT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
3
1
ENGINE NACELLE LEFT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
6
1
FUSELAGE BOTTOM PLATE
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
14
1
CANOPY
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
16
1
VERTICAL STABILIZER
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
23
2
LONG SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
23
2
LONG SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
24
2
SHORT SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
24
2
SHORT SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
25
1
CANOPY TONGUE
FOAM BOARD
CM
IN
SHEET 2 OF 5
XF A-4 Skyhawk
Designed By: Ben Harber
Drawing By: Dan Sponholz
Version: 0.7
Date: 2017.11.22
© 2
01
7 B
en
H
arb
er. P
la
ns p
ro
vid
ed
fre
e o
f ch
arg
e. C
op
ie
s a
llo
we
d fo
r p
erso
na
l u
se
o
nly. N
ot fo
r co
mm
ercia
l u
se
.
Te
mp
la
te
V
ersio
n 4
.0
.2
XF A-4 SKYHAWK - v.0.7
5
1
NOSE TOP
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
13
1
CANOPY BASE
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
15
1
HORIZONTAL STABILIZER
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
22
1
RIGHT WING
FOAM BOARD
4
5
°
D
O
U
B
L
E
B
E
V
E
L
45° SINGLE BEVEL
CM
IN
SHEET 3 OF 5
XF A-4 Skyhawk
Designed By: Ben Harber
Drawing By: Dan Sponholz
Version: 0.7
Date: 2017.11.22
© 2
01
7 B
en
H
arb
er. P
la
ns p
ro
vid
ed
fre
e o
f ch
arg
e. C
op
ie
s a
llo
we
d fo
r p
erso
na
l u
se
o
nly. N
ot fo
r co
mm
ercia
l u
se
.
Te
mp
la
te
V
ersio
n 4
.0
.2
XF
A
-4 S
KY
HA
WK
- v.0.7
12
1
TH
RU
ST
T
UB
E
PO
ST
ER
B
OA
RD
XF A-4 SKYHAWK - v.0.7
21
1
LEFT WING
FOAM BOARD
4
5
°
D
O
U
B
L
E
B
E
V
E
L
45° SINGLE BEVEL
CM
IN
SHEET 4 OF 5
XF A-4 Skyhawk
Designed By: Ben Harber
Drawing By: Dan Sponholz
Version: 0.7
Date: 2017.11.22
© 2
01
7 B
en
H
arb
er. P
la
ns p
ro
vid
ed
fre
e o
f ch
arg
e. C
op
ie
s a
llo
we
d fo
r p
erso
na
l u
se
o
nly. N
ot fo
r co
mm
ercia
l u
se
.
Te
mp
la
te
V
ersio
n 4
.0
.2
XF A-4 SKYHAWK - v.0.7
17
1
DUCT FORMER 1
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
18
1
DUCT FORMER 2
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
19
1
DUCT FORMER 3
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
20
1
DUCT FORMER 4
FOAM BOARD
XF
A
-4 S
KY
HA
WK
- v.0.7
41
NO
SE
FO
AM
B
OA
RD
CM
IN
SHEET 5 OF 5
XF A-4 Skyhawk
Designed By: Ben Harber
Drawing By: Dan Sponholz
Version: 0.7
Date: 2017.11.22
© 2
01
7 B
en
H
arb
er. P
la
ns p
ro
vid
ed
fre
e o
f ch
arg
e. C
op
ie
s a
llo
we
d fo
r p
erso
na
l u
se
o
nly. N
ot fo
r co
mm
ercia
l u
se
.
Te
mp
la
te
V
ersio
n 4
.0
.2
XF
A
-4 S
KY
HA
WK
- v.0.7
9 1
TH
RU
ST
T
UB
E M
ID
S
UP
PO
RT
FO
AM
B
OA
RD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A1
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A2
XF A-4 SKYHAWK - v.0.7
1
1
FUSELAGE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A3
XF A-4 SKYHAWK - v.0.7
G2
INLET ANGLE GAUGE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A4
XF
A
-4
S
KY
HA
WK
- v.0
.7
G1
DIH
ED
RA
L G
AU
GE
FO
AM
B
OA
RD
XF A-4 SKYHAWK - v.0.7
10
1
UPPER EDF MOUNT
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A5
XF A-4 SKYHAWK - v.0.7
G3
SQUARE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A6
XF A-4 SKYHAWK - v.0.7
7
1
INLET FLOOR
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A7
XF A-4 SKYHAWK - v.0.7
8
1
LOWER EDF MOUNT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
11
1
NOZLE EXIT
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A8
XF A-4 SKYHAWK - v.0.7
2
1
ENGINE NACELLE RIGHT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
23
2
LONG SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
23
2
LONG SPAR
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A9
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A10
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A11
XF A-4 SKYHAWK - v.0.7
16
1
VERTICAL STABILIZER
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A12
XF A-4 SKYHAWK - v.0.7
3
1
ENGINE NACELLE LEFT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
6
1
FUSELAGE BOTTOM PLATE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A13
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A14
XF A-4 SKYHAWK - v.0.7
24
2
SHORT SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
24
2
SHORT SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
25
1
CANOPY TONGUE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A15
XF A-4 SKYHAWK - v.0.7
14
1
CANOPY
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A16
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A17
4
5
°
D
O
U
B
L
E
B
E
V
E
L
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A18
XF A-4 SKYHAWK - v.0.7
13
1
CANOPY BASE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A19
XF A-4 SKYHAWK - v.0.7
5
1
NOSE TOP
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A20
45° SINGLE BEVEL
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A21
XF A-4 SKYHAWK - v.0.7
22
1
RIGHT WING
FOAM BOARD
4
5
°
D
O
U
B
L
E
B
E
V
E
L
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A22
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A23
XF A-4 SKYHAWK - v.0.7
15
1
HORIZONTAL STABILIZER
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A24
XF
A
-4 S
KY
HA
WK
- v.0.7
12
1
TH
RU
ST
T
UB
E
PO
ST
ER
B
OA
RD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A25
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A26
4
5
°
D
O
U
B
L
E
B
E
V
E
L
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A27
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A28
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A29
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A30
XF A-4 SKYHAWK - v.0.7
21
1
LEFT WING
FOAM BOARD
4
5
°
D
O
U
B
L
E
B
E
V
E
L
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A31
45° SINGLE BEVEL
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A32
XF
A
-4 S
KY
HA
WK
- v.0.7
41
NO
SE
FO
AM
B
OA
RD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A33
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A34
XF A-4 SKYHAWK - v.0.7
17
1
DUCT FORMER 1
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
18
1
DUCT FORMER 2
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A35
XF A-4 SKYHAWK - v.0.7
19
1
DUCT FORMER 3
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
20
1
DUCT FORMER 4
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A36
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A37
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-A38
XF
A
-4 S
KY
HA
WK
- v.0.7
9 1
TH
RU
ST
T
UB
E M
ID
S
UP
PO
RT
FO
AM
B
OA
RD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B1
XF A-4 SKYHAWK - v.0.7
1
1
FUSELAGE
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
G2
INLET ANGLE GAUGE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B2
XF
A
-4
S
KY
HA
WK
- v.0
.7
G1
DIH
ED
RA
L G
AU
GE
FO
AM
B
OA
RD
XF A-4 SKYHAWK - v.0.7
G3
SQUARE
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
10
1
UPPER EDF MOUNT
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B3
XF A-4 SKYHAWK - v.0.7
7
1
INLET FLOOR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
8
1
LOWER EDF MOUNT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
11
1
NOZLE EXIT
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B4
XF A-4 SKYHAWK - v.0.7
2
1
ENGINE NACELLE RIGHT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
23
2
LONG SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
23
2
LONG SPAR
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B5
XF A-4 SKYHAWK - v.0.7
16
1
VERTICAL STABILIZER
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B6
XF A-4 SKYHAWK - v.0.7
3
1
ENGINE NACELLE LEFT
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
6
1
FUSELAGE BOTTOM PLATE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B7
XF A-4 SKYHAWK - v.0.7
14
1
CANOPY
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
24
2
SHORT SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
24
2
SHORT SPAR
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
25
1
CANOPY TONGUE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B8
4
5
°
D
O
U
B
L
E
B
E
V
E
L
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B9
XF A-4 SKYHAWK - v.0.7
5
1
NOSE TOP
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
13
1
CANOPY BASE
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B10
XF A-4 SKYHAWK - v.0.7
22
1
RIGHT WING
FOAM BOARD
4
5
°
D
O
U
B
L
E
B
E
V
E
L
45° SINGLE BEVEL
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B11
XF A-4 SKYHAWK - v.0.7
15
1
HORIZONTAL STABILIZER
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B12
XF
A
-4 S
KY
HA
WK
- v.0.7
12
1
TH
RU
ST
T
UB
E
PO
ST
ER
B
OA
RD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B13
4
5
°
D
O
U
B
L
E
B
E
V
E
L
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B14
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B15
XF A-4 SKYHAWK - v.0.7
21
1
LEFT WING
FOAM BOARD
4
5
°
D
O
U
B
L
E
B
E
V
E
L
45° SINGLE BEVEL
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B16
XF
A
-4 S
KY
HA
WK
- v.0.7
41
NO
SE
FO
AM
B
OA
RD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B17
XF A-4 SKYHAWK - v.0.7
17
1
DUCT FORMER 1
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
18
1
DUCT FORMER 2
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
19
1
DUCT FORMER 3
FOAM BOARD
XF A-4 SKYHAWK - v.0.7
20
1
DUCT FORMER 4
FOAM BOARD
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B18
IN
CM
XF A-4 SKYHAWK v.0.7
TILE-B19
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