Prop Chart For Two - Stroke Engines
| Alternate
Propellors |
Starting
Prop |
Engine
Size |
| 5.25x4, 5.5x4, 6x3.5,
6x4, 7x3 |
6x3 |
.049 |
| 7x3,7x4.5,7x5 |
7x4 |
.09 |
| 8x5,8x6,9x4 |
8x4 |
.15 |
| 8x5,8x6,9x5 |
9x4 |
.19 - .25 |
| 9x7,9.5x6,10x5 |
9x6 |
.20 - .30 |
| 9x7,10x5,11x4 |
10x6 |
.35 - .36 |
| 9x8, 11x5 |
10x6 |
.40 |
| 10x6,11x5,11x6,12x4 |
10x7 |
.45 |
| 10x8,11x7,12x4,12x5 |
11x6 |
.50 |
| 11x7.5, 11x7.75,
11x8,12x6 |
11x7 |
.60 - .61 |
| 11x8,12x8,13x6,14x4 |
12x6 |
.70 |
| 12x8,14x4,14x5 |
13x6 |
.78 - .80 |
| 13x8,15x6,16x5 |
14x6 |
.90 - .91 |
| 15x8,18x5 |
16x6 |
1.08 |
| 16x10,18x5,18x6 |
16x8 |
1.20 |
| 18x8,20x6 |
18x6 |
1.50 |
| 18x10,20x6,20x8,22x6 |
18x8 |
1.80 |
| 18x10,20x6,20x10,22x6
|
20x8 |
2.00 |
Prop Chart For Four - Stroke Engines
| Alternate
Propellers
|
Starting
Prop |
Engine
Size |
| 9x5,10x5 |
9x6 |
.20 - .21 |
| 10x6,10x7,11x4,11x5.11x7,11x7.5,12x4,12x5 |
11x6 |
.40 |
| 10x6,10x7,10x8,11x7,11x7.5,12x4,12x5,12x6 |
11x6 |
.45 - .48 |
| 11x7.5,11x7.75,11x8,12x8,13x5,13x6,14x5,14x6 |
12x6 |
.60 - .65 |
| 12x8,13x8,14x4,14x6 |
13x6 |
.80 |
| 13x6,14x8,15x6,16x6 |
14x6 |
.90 |
| 14x8,15x6,15x8,16x8,17x6,18x5,18x6 |
16x6 |
1.20 |
| 15x6,15x8,16x8,18x6,18x8,20x6 |
18x6 |
1.60 |
| 18x12,20x8,20x10 |
18x10 |
2.40 |
| 18x10,18x12,20x10 |
20x8 |
2.70 |
| 18x12,20x10 |
20x10 |
3.00 |
|