Propeller Selection Guide
 Propellers shown in red are a suitable size for running in your engine. Please remember that propellers at either end of the indicated range may not suite your particular engine and muffler combination. As a general rule for sport flyers go up a diameter or pitch above the propeller indicated for running in. If your model is very fast then you'll probably find a smaller coarse pitch propeller to be best. If you're flying a general type sport model then a larger diameter propeller from the middle of the range would be better suited. If your model is a slow flying type then a large diameter fine pitch propeller would probably be better. Conversely, large diameter fine pitch propellers also provide good vertical performance and hovering. If your model is to be hand launched then a finer pitch propeller would probably be a better choice as they provide more pull and better acceleration at low airspeeds and so may save the day at the launch! As always, experiment for best results.
.049
|
5.25 x 4
|
5.5 x 4
|
6 x 3
|
6 x 3.5~4
|
7 x 3
|
.09
|
7 x 3
|
7 x 4
|
7 x 4.5~5
|
|
|
.15
|
8 x 4
|
8 x 5~6
|
9 x 4
|
|
|
.20
|
8 x 5~6
|
9 x 4
|
9 x 5
|
9 x 6
|
10 x 4
|
.25
|
8 x 6
|
9 x 6
|
9 x 8
|
10 x 4
|
11 x 3~4
|
.30~38
|
9 x 6
|
10 x 5
|
10 x 6
|
10.5 x 6
|
11 x 4~5
|
.40
|
10 x 6
|
10 x 6.5
|
10.5 x 5~6
|
11 x 5~6
|
|
.46~53
|
10.5 x 6~10
|
11 x 5
|
11 x 6~8
|
12 x 5~6
|
|
.61
|
11 x 8~10
|
12 x 6
|
12 x 7~8
|
12.5 x 6
|
|
.75
|
12 x 6
|
12 x 7~8
|
13 x 6~7
|
|
|
.91
|
12 x 7~10
|
13 x 6
|
13 x 7~8
|
14 x 6
|
|
1.08~1.20
|
14 x 6~8
|
15 x 6~8
|
16 x 6~10
|
18 x 6
|
|
1.40~1.50
|
18 x 6
|
18 x 8~10
|
20 x 6
|
|
|
1.80~2.00
|
18 x 6
|
18 x 8~10
|
20 x 6~8~10
|
|
|
2.75
|
20 x 8~10
|
22 x 8
|
|
|
|
.21~30
|
9 x 6~7
|
10 x 6
|
11 x 4
|
|
|
.40
|
10 x 7~8
|
11 x 6
|
12 x 5~6
|
|
|
.48
|
10 x 8~9
|
10.5 x 8~9
|
11 x 6~7.5
|
12 x 5~6
|
12.5 x 6
|
.60~65
|
11 x 8
|
12 x 6
|
12 x 8
|
13 x 5~6
|
|
.70~80
|
11 x 8~9
|
12 x 7~8
|
12.5 x 6
|
13~13.5 x 8
|
14 x 7
|
.91
|
12 x 10~11
|
13 x 9
|
14 x7
|
15 x 6
|
16 x 6
|
1.08~1.20
|
14 x 9~11
|
15 x 8
|
16 x 6~7
|
17 x 6
|
18 x 5~6
|
1.60
|
15 x8
|
16 x 6~8
|
18 x6~8
|
20 x 6
|
|
2.40
|
18 x10~12
|
20 x 8~10
|
|
|
|
2.70
|
18 x10~12
|
20 x 8~10
|
22 x 6
|
|
|
3.00
|
18 x 10~14
|
20 x 8~11
|
22 x 8
|
|
|
3.20
|
18 x 10~14
|
20 x 8~10
|
22 x 8
|
|
|
FF 5.8.01
|