Propeller Size for Engine Size 2-Stoke 4-Stroke

.049-.051	5.5x4	5.5x4.5	6x3	6x3.5	6x4	N/A
.09 -.10	7x4	7x5	7x6	N/A
.15	7x6	8x4	8x5	8x6	8x7	N/A
.20 -.25	8x6	8x7	9x4	9x5	9x4	9x5	9x6	9x7
.29 -.35	9x6	9x7	9x8	9.5x6	10x4	10x5	10x6	N/A
.40	9.5x6	10x4	10x5	10x6	10x8	10x9	11x6	12x6
.45 -.50	10x8	10x9	11x4	11x5	11x6	11x7	11x7.5	N/A
.60	11x5	11x6	11x7	11x7.5	11x8	11x9	11x8	11x9	12x6	13x6
.71 -.80	12x6	12x8	13x6	13x8	13x10	14x8	N/A
.90	13x6	13x8	13x10	14x6	14x8	11x9	12x8	14x6
1.08	14x8	14x10	15x8	16x6	N/A
1.20	14x8	15x8	16x6	14x8	15x8	15x10	16x8
1.5	16x8	16x10	18x6	18x8	N/A
1.8	18x8	18x10	20x6	20x8	N/A
2.1	20x8	20x10	N/A
2.7 -3.0	22x8	22x10	22x12	24x8	24x10	24x12	N/A