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I.C. Propeller guide
March 13, 2012
11:15 am
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Gaz
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Forum Posts: 111
Member Since:
February 1, 2012
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Found this guide, thought it might be useful as a reference - 

 

TWO-STROKE PROP CHART

Engine (cu. in.)      Propeller selection

.049                        5.25 x 4; 5.5 x 4; 6 x 3.5; 6 x 4; 7 x 3

.09                              7 x 3; 7 x 4.5; 7 x 5

.15                              8 x 5; 8 x 6; 9 x 4

.19 - .25                    8 x 5; 8 x 6; 9 x 5

.29 - .30                    9 x 7; 9.5 x 6; 10 x 5

.35 - .36                    9 x 7; 10 x 5; 11 x 4

.40                              9 x 8; 11 x 5

.46                             10 x 6; 10 x 7; 11 x 5; 11 x 6; 11 x 7; 12 x 4

.50                             10 x 7; 10 x 8; 11 x 7; 12 x 4; 12 x 5

.60 - .61                   11 x 7.5; 11 x 7.75; 11 x 8; 12 x 6

.70                             11 x 8; 12 x 8; 13 x 6; 14 x 4

.90 - .91                   13 x 8; 15 x 6; 16 x 5
1.08                          15 x 8; 18 x 5

1.20                          16 x 10; 18 x 5; 18 x 6

1.50                          18 x 8; 20 x 6

1.80                          18 x 10; 20 x 6; 20 x 8; 22 x 6

 

FOUR-STROKE PROP CHART

Engine (cu. in.)          Propeller selection

.20 - .21                   9 x 5; 10 x 5

.40                            10 x 6; 10 x 7; 11 x 4; 11 x 5; 11 x 7;

                                  11 x 7.5;  12 x 4; 12 x5

.45 - .48                 10 x 6; 10 x 7; 10 x 8; 11 x 7; 11 x 7.5; 12 x 4; 12 x 5; 12 x 6    

.60 - .65                  11 x 7.5; 11 x 7.75; 11 x 8; 12 x 8; 13 x 5;

                                  13 x 6; 14 x 5;14x6

.80                            12 x 8; 13 x 8; 14 x 4; 14 x 6

.90                           13 x 6; 14 x 8; 15 x 6; 16 x 6

1.20                         14 x 8; 15 x 6; 15 x 8; 16 x 8; 17 x 6; 18 x 5; 18 x 6

1.60                         15 x 6; 15 x 8; 16 x 8; 18 x 6; 18 x 8; 20 x 6

2.40                         18 x 12; 20 x 8; 20 x 10

2.70                         18 x 10; 18 x 12; 20 x 10

3.00                         18 x 12; 20 x 10

 


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