Ericson 27 1976 "Lotus Flower"
The existing 11x10 fixed two blade prop gave me a top speed of 4.5 knots and a 20 amp speed of 3 knots. Knowing a bigger prop would be more efficient and reading that a three blade prop would be better for regeneration I found a 12x10 fixed three blade locally and had it installed. This was a nice improvement. The top speed increased to 5.7 knots and at a 20 amp draw I was now getting 4 knots of boat speed. I have a 13x12 fixed three blade prop that I plan to experiment with in the future...
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