Saito FA-220a - Propeller Selection; Selecting the Best Propeller; Propeller Balancing Importance

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-220
a/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.