Willard Ice Breaker 2/8/06

[Paddler]

Interesting results today. At WOT with a 17" aluminum prop the motor turned ~5700 RPM and 36.4 MPH. With a 16" stainless steel prop it turned ~5200-5300, but went 35.8 MPH. There was less than 1 MPH difference, but 400-500 RPM difference. There must be a lot of flex in the aluminum prop.
[signature]