Pitts  

Prop Chart

 

   

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

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