educate me on props.........

[Cane Pole]

You got a tach? Your WOT rpm could put a hole in your pocket.

[jeepguyjames]

You got a tach? Your WOT rpm could put a hole in your pocket.

I do have a tach.....to be honest I'm not so worried about top end and running the crap-o-la out of it.....i just don't want to baby it to get it out of the hole......40 to 45 mph is plenty enough for me.....she was doing mid 50s (mph) on the test drive.....

[Barnacle Bill]

Operating Range

The following chart illustrates a typical outboard motor horsepower curve. The curve represents data that is determined by running an engine on a dynamometer through the RPM range up to W.O.T. (Wide Open Throttle). This chart indicates a peak of 50 HP at 5000 RPM. 50 HP would be the engine's overall power rating.

The recommended W.O.T. operating range is determined to permit operating latitudes without sacrificing engine durability or performance.The recommended W.O.T. operating range for this motor would probably be 4500-5500 RPM.The operating range is stated on the specification page of the Operator's Manual and is used when selecting a propeller.

[jeepguyjames]

GREAT INFO!!!!!! Thank you........I'm accustomed to tin boats with 40s and 50s on em......so this is a whole new exp for me (glasss boat with bigger HP)

Operating Range

The following chart illustrates a typical outboard motor horsepower curve. The curve represents data that is determined by running an engine on a dynamometer through the RPM range up to W.O.T. (Wide Open Throttle). This chart indicates a peak of 50 HP at 5000 RPM. 50 HP would be the engine's overall power rating.

The recommended W.O.T. operating range is determined to permit operating latitudes without sacrificing engine durability or performance.The recommended W.O.T. operating range for this motor would probably be 4500-5500 RPM.The operating range is stated on the specification page of the Operator's Manual and is used when selecting a propeller.

[Cane Pole]

There are a lot of good calculators. Here is one from Merc. Calcs give you a good ballpark idea as what results you gonna get.

Prop Slip Calculator | Propellers | Mercury Racing

[jeepguyjames]

There are a lot of good calculators. Here is one from Merc. Calcs give you a good ballpark idea as what results you gonna get.

Prop Slip Calculator | Propellers | Mercury Racing

good stuff CP.....thank you sir.........taking her out tues......will notice rpms and such......will be first time fishing out of her also.......test drive was kinda dicy any how.....wind was howling and lake had white caps.......hopefully tues is better......thanks for all the input

[Cane Pole]

good stuff CP.....thank you sir.........taking her out tues......will notice rpms and such......will be first time fishing out of her also.......test drive was kinda dicy any how.....wind was howling and lake had white caps.......hopefully tues is better......thanks for all the input

I have been thru this situation more than once. I not a prop expert. I had a lot of good help. I'm just passing what I remember on.

[Semo]

Sounds like everybody is skipping a major step or maybe i misread the original post. Do you know how to use the power trim correctly? If you have the motor trimmed up when you launch(like to post says) burnout!!!! prop slips in water not on the hub. To properly launch trim all the way down!!! GAG IT, bump the trim up one push at a time til the nose balances out. To get max top end i trim up until the boat tries to bounce and back down two bumps of the button.

[Barnacle Bill]

Sounds like everybody is skipping a major step or maybe i misread the original post. Do you know how to use the power trim correctly? If you have the motor trimmed up when you launch(like to post says) burnout!!!! prop slips in water not on the hub. To properly launch trim all the way down!!! GAG IT, bump the trim up one push at a time til the nose balances out. To get max top end i trim up until the boat tries to bounce and back down two bumps of the button.

See post #11

[Semo]

Yep, missed that buried in there. Still sounds like trimmig up to fast and liftingthe prop.