[Fr. Frank]

Originally Posted by kmoose

I run an 11 inch plate and am at least 3" up from level. 5400 max sounds over propped but I wouldn't even consider that a fact until it was at least 1.5" up from level and tested. With that adjustment made I would be hunting a prop that is within less than 200 rpm from hitting max on a light load. When you get it right I'm willing to bet you get 50 knots on a light load and up to 3 mpg at a 30 kt cruise. Great choice..... more pics!

always, Always, ALWAYS prop for Max of Max at Max.
Maximum limit of
Maximum rpm range at
Maximum gross loading.

For example: If your maximum rpm range is 5400-5800 rpms,
and your maximum vessel load (persons, motor, fuel, & gear) is 3180 lbs
(12 persons, 75 gallons, 350 lbs gear, 500 lb motor)
then you should be able to reach 5800 rpms with the full 3180 lbs loaded into your boat, properly trimmed and loaded.

You can add another "performance" propeller, but your primary prop should be able to do this. It's just good sense, people.

If something happens and you end up taking on water, your bilge pump fails, or you just need to really to be able to harness the torque and horsepower of your motor to get you back, you will NOT get back in a timely fashion if you're propped for performance.

Propping for Max of Max at Max can save your boat, it can save your motor, and it can save your life.