After running his 2003 36' Luhrs Open w/twin Yanmar
465s, with Prop Scan-corrected props, Erez Wolf posted
the following unsolicited comments on the Florida
Sportsman Fishing Forum website:
As some of you may know, I hit some sand inside
a marina near Ponce Inlet. Well, prior to making
our trip down, I took some readings regarding RPM
vs. Efficiency vs. Speed.
After returning from our trip, I had Mark, at
Blue Water Props, perform a Prop Scan on them.
Boy was I surprised today! I'm sure Mark can't
guarantee similar results, but the money spent
on the tuning will pay for itself in no time at
Here's the 'executive summary':
· NO Vibration at all
· Cruise Speed went from 27.0 knots to 28.4 knots!
· nMPG at cruise went from .84 to .90!
· Our maximum range went from 336 miles to 360 miles.
Here is comparison graph of Speed / nMPG vs. RPM
for before and after.