new to inboards with shaft drives.

[PhilfromOhio]

All. I recently purchased a 31' Uniflite flybridge cruiser with full intentions of
restoring her. She is currently in the water and running. I am having her pulled this week
for bottom scraping, sanding, zincs and paint. Am curious about the props. not too sure whats on there
but curious if anyone has reccomendations should I chose to replace. looking more for economics
rather than speed or power.

 

[jestor68]

Re: new to inboards with shaft drives.

You'll need to look up the specs for whatever motors are in there and check to see that the motors are operating within the specified WOT rpm range(s) by performing a trial run.

 

[Bondo]

Re: new to inboards with shaft drives.

All. I recently purchased a 31' Uniflite flybridge cruiser with full intentions of
restoring her. She is currently in the water and running. I am having her pulled this week
for bottom scraping, sanding, zincs and paint. Am curious about the props. not too sure whats on there
but curious if anyone has reccomendations should I chose to replace. looking more for economics
rather than speed or power.

Ayuh,.... Odds are, copies of the prop on it now, will be yer Best bet,....

 

[JustJason]

Re: new to inboards with shaft drives.

Give acme a call. They have the best/largest catalog for inboard propellers.

 

[PhilfromOhio]

Re: new to inboards with shaft drives.

Thankyou all for the advice. oce she's out and I can inspect them, hopefully they'll be in good shape. If not, I have found some good
documentation on size and pitch for twin Chrysler 318's. Based on the manufacturer recommendations.

 

[steelespike]

Re: new to inboards with shaft drives.

One thing that may help you most is a flow meter there are some that can do real time calculations.
While you may not be interested in a particular top speed the best speed for a given throttle setting could produce the best mpg.
Very roughly speaking marine engines at wot uses fuel at a rate of about 10% of the horse power. ie: 200 hp = 20 gallons per hour
at wot.
Whether pushing a big cruiser or a runabout. The best mpg revolves around the resulting speed.
Obviously as you reduce speed this gph will be reduced.A good flow meter can give you these figures almost instantly to help develop the best cruising speed.