Prop Selection Chart

Copyright 1998 - 2002 © Howard Sullivan

2 - Cycle Engines
ENGINE SIZE PREFERRED SIZE ALTERNATE SIZE
.049 6 x 3 5 1/4 x 4, 5 1/2 x 4, 6 x 3 1/2, 6 x 4, 7 x 3
.09 7 x 4 7 x 3, 7 x 4 1/2, 7 x 5
.15 8 x 4 8 x 5, 8 x 6, 9 x 4
.19 - .25 9 x 4 8 x 5, 8 x 6, 9 x 5
.29 - 30 9 x 6 9 1/2 x 6, 10 x 5
.40 10 x 6 9 x 8, 11 x 5
.45 10 x 7 10 x 6, 11 x 5, 11 x 6, 12 x 4
.50 11 x 6 10 x 8, 11 x 7, 12 x 4, 12 x 5
.60 - .61 11 x 7 11 x 7 1/2, 11 x 7 3/4, 11 x 8, 12 x 6
.70 12 x 6 11 x 8, 12 x 8, 13 x 6, 14 x 4
.78 - .80 13 x 6 12 x 8, 14 x 4, 14 x 5
.90 - .91 14 x 6 13 x 8, 15 x 6. 16 x 5
1.20 16 x 6 16 x 10, 18 x 5, 18 x 6
1.50 18 x 6 18 x 8, 20 x 6
1.80 18 x 8 18 x 10, 20 x 6

4 - Cycle Engines
ENGINE SIZE PREFERRED SIZE ALTERNATE SIZE
.20 - .21 9 x 6 9 x 5, 10 x 5
.40 11 x 6 10 x 6, 10 x 7, 11 x 4, 11 x 5, 11 x 7, 11 x 7 1/2, 12 x 4
.45 - .48 11 x 6 10 x 6, 10 x 7, 11 x 7, 11 x 7 1/2, 12 x 4, 12 x 5, 12 x 6
.60 - .65 12 x 6 11 x 7 1/2, 11 x 7 3/4, 11 x 8, 12 x 8, 13 x 5, 13 x 6
.70 12 x 6 11 x 7 1/2, 11 x 7 3/4, 11 x 8, 12 x 8, 13 x 5, 13 x 6
.80 13 x 6 12 x 8, 13 x 8, 14 x 4, 14 x 6
.90 14 x 6 12 x 10, 13 x 8, 14 x 8, 15 x 6
1.08 16 x 6 15 x 8, 18 x 5
1.20 16 x 6 14 x 8, 15 x 6, 15 x 8, 16 x 8, 17 x 6, 18 x 5, 18 x 6
1.60 16 x 6 15 x 6, 15 x 8, 16 x 8, 18 x 6, 18 x 8, 20 x 6
2.40 18 x 10 18 x 12, 20 x 8, 20 x 10
2.70 20 x 8 18 x 10, 20 x 8, 20 x 10
3.00 20 x 10 18 x 12, 20 x 10

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