O.S. Engines
SUGGESTED PROPELLER SIZES |
Suggested
propeller sizes are given in the table. Note that your ideal
propeller diameter, pitch, and blade area should be chosen
by trial and error depending on your particular engine type,
model size, and usage. Even if propellers have the same size,
their properties vary considerably depending on the manufacturer.
Please select blades for proper balance on the left and right. |
|
Never touch, or allow any object to come into contact
with, the rotating propeller and do not crouch over engine
when it is running. |
|
TWO-STROKE
ENGINES |
DIA X
PITCH |
|
Running-in |
Trainer / Sport |
10LA |
7x4 |
7x3-5,8x4 |
25LA |
9x5 |
9x5-6 |
46LA |
11x6 |
11x6-7 |
65LA |
12x6 |
12x7-8,13x6-8 |
|
Running-in |
Aerobatic / Sport |
25LA-S |
9x6 |
9x6,10x5 |
40LA-S |
11x5 |
11x5-6 |
46LA-S |
11x6 |
11x6-7,12x5-6 |
|
Sport |
Aerobatic |
15CV-A |
7x5-6,8x4-6,9x4 |
8x4-6 |
25AX |
9x5-6,9.5x5,10x5 |
----- |
35AX BE |
10x6-7,10.5x6,11x6 |
----- |
46AX |
10.5x6,11x6-8,12x6-7 |
----- |
55AX-BE |
12×7-8,13×6-7 |
----- |
61FX |
12x6-8,13x6-7 |
----- |
75AX |
13x8-10,14x6-8 |
----- |
75AX-BE |
13x9-10,14x6-8,15x6 |
----- |
120AX RING |
15x10-12,16x8-10 |
----- |
120AX RING-BE |
15x10-12,16x8-10 |
----- |
140RX |
----- |
16x14,17x13 |
160FX RING |
15x13-14,16x12-14,
17x12-13,18x8-10,20x8 |
----- |
BGX-1 RING(RN) |
18x10-12,20x8-10 |
18x10-12,20x8-10 |
|
Running-in |
Sport/Acro/Scale |
GT33 |
18x8 |
18x10,18x12,19x10,20x8,20x10 |
GT22 |
15x10 |
16x8,16x10,17x6,17x8 |
Single-cylinder |
Sport & Stant |
Scale |
FS-30S |
9x6-7,10x4 |
10x5-6
|
FS-40S |
10x7-7.5,11x6 |
10x7,10.5x6,11x7,
12x5-6
|
FSα-56 |
12x6-8,13x6 |
12x6-8,13x6-7 |
FL-70 |
12x7,12.5x6,13x6 |
12.5x6,13x6-7
|
FSα-72 |
12x7-8,13x6-8,14x6-7 |
12x7-8,13x6-8,14x6-7 |
FSα-81 |
13x7-9,14x6-7 |
13x7-9,14x6-7 |
FSα-81-P |
13x7-8,14x6-8 |
13x7-8,14x6-8 |
FS-91S II
FS-91S II-P |
11x11-12,12x10-12,13x9 |
13x9,14x7,15x6,16x6 |
FSα-110 |
13x9-11,14x8-10 |
15x8,16x8 |
FSα-110-P |
13x9-11,14x8-10,
15x8,16x8 |
13x9-11,14x8-10,15x8,16x8 |
FSα-155-P |
16x8-12,17x8-12 |
16x8-12,17x8-12 |
FS-120S-E |
13x11-12,14x10-11,
15x8,16x6-7 |
15x8,16x6-7,18x5-6
|
FS-200S-P |
16x12N-15,16.5x12-14,
17x10N-13,18x6W-12,
20x8 |
16x12N-15,16.5x12-14,
17x10N-13,18x6W-12,
20x8 |
FS-200S |
15x12-14,16x12-14,
17x10-13,17x12-13,
18x6-10,18x8-12,20x8 |
15x12-14,16x12-14,
17x10-13,17x12-13,
18x6-10,18x8-12,20x8 |
Twin & Multi-cylinder |
Sport & Scale |
IL-300 |
18x10-12,20x8-10,22x8 |
FT-300 (Super Gemini-300) |
18x10-12,20x8-10,22x8 |
FR5-300 (Sirius) |
18x10-12,20x8-10,22x8 |
ROTARY ENGINE |
Sport & Scale |
ROTARY ENGINE 49PI TypeII |
9x6-7,10x4-6,11x4-5 |
|