Saito FA-120 Special Instruction Manual - page 9
14
P R O P E L L E R S E L E C T I O N
I
C2
C1
E
F
A
H
K
B
G A
E
B2
B1
D
F
K
C
D
I
C2
C1
E
F
A
H
K
B
G A
E
B2
B1
D
F
K
C
D
Figure 6
Figure 7
Figure 8
OUTSIDE DIMENSIONS (mm)
Items
A
B
B1
B2 C1 C2
D
E
F
G
H
I
FA-120 Special/FA-120SGK 59
24
—
—
111 138 69 132
82
45
70
111
FA-150/FA-150GK
59
24
—
—
111 138 69 134
82
45
70
112
FA-180/FA-180GK
59
24
—
—
111 138 69 135
82
45
70
113
FA-220a/FA-220aGK
64
30
—
—
116 149 75 158
85
53
70
130
SPECIFICATIONS
Items
Disp
Bore
Stroke
Weight
K
Cylinder
HP
(cc)
(mm)
(mm)
(g)
(ISO)
FA-120 Special/FA-120SGK
20.0
32.0
24.8
820
M8x1.25 — AAC
2.2
FA-150/FA-150GK
25.0
34.0
27.6
850
M8x1.25 — AAC
2.5
FA-180/FA-180GK
29.1
36.0
28.6
880
M8x1.25 — AAC
2.8
FA-220a/FA-220aGK
36.3
38.0
32.0
1100
M8x1.25 — AAC
3.5
E N G I N E S P E C S
15
Propeller Selection
In the chart below you will find a
propeller selection list. This chart will
enable you to select the best propeller
for initial setup of your Saito
™
engine.
Remember, it is imperative to balance
each propeller prior to installation
onto your Saito engine. Failure to do
so may cause unwanted vibration in
your aircraft.
Figure 5
Saito Single-Cylinder Propeller Chart
NOTE: All recommendations are based on engines using APC props, Power Master 15%
2-stroke fuel, and Saito SAIP400S glow plugs.
ENGINE
SPORT
SCALE
AEROBATICS
FA-120S/120SGK
2000
–
11,000 rpm
14 x 10,15 x 8, 15 x 10
15 x 8, 16 x 6, 16 x 8,
13.5 x 13.5, 14 x 10N
16 x 16, 16 x 8
18 x 6
14 x 12
FA-150/150GK
2000
–
10,500 rpm
15 x 8, 15 x 10, 16 x 8
16 x 8, 18 x 6, 18 x 8,
14 x 10N, 14 x 14,
18 x 6, 18 x 8
15 x 10, 15 x 11
FA-180/180GK
2000
–
10,000 rpm
15 x 8, 15 x 10, 15 x 11
16 x 8, 16 x 10,
14 x 13.5,
16 x 8, 16 x 10
18 x 6
15 x 12
FA-220a/220aGK
1900
–
10,000 rpm
18 x10, 20 x 6, 20 x 8,
20 x 6, 20 x 8,
18 x 10, 20 x 6, 20 x 6W
22 x 6
22 x 6
21 x 6, 22 x 6
NOTE: Observe operating rpm ranges as excessive rpm can result in damage to the engine.
You will note a letter (A, B,C, etc.) stamped on the top of the motor mount. This letter identifies
the production version of your engine. Should you ever need to order a part or have a question
pertaining to your engine, specify this letter along with the engine type. This will allow for
easier identification of your engine.