Long Range Putt Putt prop

[SumpterMI]

i was talking to my uncle one time and recommend a very high pitch prop for ideling from Detroit to Niagra Falls. I just to now if you could go to high of a pitch with a putt putt prop. I was thinking about a SS 28 pitch.

94 alpha one 5.7
bayliner 2655

 

[Bondo]

Re: Long Range Putt Putt prop

Nope,... It don't work that way,...

At Best, the boat would be inoperable,..
At Worst,...
You get a few miles before the motor detonated big holes through the tops of the pistons...

 

[SumpterMI]

Re: Long Range Putt Putt prop

How would this be any different then trolling for walleyes?

This prop would only be used at low RPM's. My 15 1/4 x 17 SS would be used for tubing and anything else.

 

[Bondo]

Re: Long Range Putt Putt prop

How would this be any different then trolling for walleyes?

This prop would only be used at low RPM's. My 15 1/4 x 17 SS would be used for tubing and anything else.

Ok,... Go ahead....

Then come on back, 'n tell Us the results...

 

[Borgey401]

Re: Long Range Putt Putt prop

^^^^^^^^ LISTEN TO HIM!!!!!!! without a doubt a badd idea.

 

[1fast68]

Re: Long Range Putt Putt prop

If your just ideling and don't put a big load on the engine, I don't understand the bad idea comment.

 

[SumpterMI]

Re: Long Range Putt Putt prop

Ok, let me ask the question this way. LOL

What SS prop was designed to perform efficiently at low RPM's for a pocket cruiser?

 

[RogersJetboat454]

Re: Long Range Putt Putt prop

Another way to look at it...

Take a car with a manual transmission, place it into over drive (5th or 6th gear) then drive around at 5 mph...

 

[Robbabob]

Re: Long Range Putt Putt prop

How would this be any different then trolling for walleyes?

This prop would only be used at low RPM's. My 15 1/4 x 17 SS would be used for tubing and anything else.

No need to change what you have... use it for the putt putt. If you feel you must change props, go to a 4-blade for better stability at very low speeds. Else, save your money and engine.

 

[QC]

Re: Long Range Putt Putt prop

go to a 4-blade for better stability at very low speeds.

Why is a 4 blade more "stable" at displacement speeds?

 

[Bondo]

Re: Long Range Putt Putt prop

Ok, let me ask the question this way. LOL

What SS prop was designed to perform efficiently at low RPM's for a pocket cruiser?

Ayuh,... I'd think a large diameter elephant eared prop...
probably 3 or 4 blades...

 

[steelespike]

Re: Long Range Putt Putt prop

Instead of spending 3 or 400 on a prop get a flow meter and figure the most efficient displacement speed.While most props are not intended to be most efficient at low rpm/speed.An excessive pitch
prop might end up reqiring more throttle for the same speed.You need a displacement type hull
like sail boat to be most efficient at displacement speeds.A planing hull might run at a couple of mph less than a displacement hull to be most efficient speed.
For instance a 28 might reduce your idle speed beyond normal and would require more throttle to get the idle up and then be moving at speeds beyond that most efficient for the hull.

 

[Robbabob]

Re: Long Range Putt Putt prop

Why is a 4 blade more "stable" at displacement speeds?

Sorry QC, I meant below displacement speed.

 

[1fast68]

Re: Long Range Putt Putt prop

SumpterMI, you might get a more accurate answer to your question on another boat board since this is more of a performance question. IM me and I'll give you that web address if you are interested.