[alberg30] Prop size for Atomic 4

[Andy Vine]

From: "Andy Vine" <andyv at intergate.bc.ca>

As new owners of Anila Vara (#175) we are interested in hearing from others
about the best propellor size and pitch for the Atomic 4. Our current prop
is 11" and gives us about 4.8 knots at 1500rpm in smooth water. (The
mechanic who worked on the motor said we should run at 1400 - 1600rpm.) The
motor is rated at 30HP at around 3500rpm so clearly we are not taking full
advantage of the available power. Would a smaller prop help?

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