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-   -   Prop direction (https://www.offshoreonly.com/forums/fountain/50415-prop-direction.html)

ALFSTER 06-17-2003 10:36 PM

Hey Jerry, congrats on your new ride.When are bringing it down to the lake so I can check it out?

Curt 06-25-2003 06:01 PM


Originally posted by Jonas
JUST SPOKE TO LOCAL FOUNTAIN DEALER AND HE SAYS TRY EM RUNNIN IN AS WILL MAKE BIG DIFF,, HE WOULD KNOW BEEN SELLING THESE FOR A WHILE!
GONNA TRY IT WILL LET U KNOW ON A NON STEP 35 SPININ 30 BRAVO 1S TO 5100 NOW. WE WILL SEE,,

Jonas how did you make out?:confused: :confused:

GATORONE 06-26-2003 08:49 PM

Spinning inward picked my Lightning up:cool:

Curt 06-27-2003 06:04 PM

What did it do for you on speed and how did it effect your handling around docks etc.?

US1 Fountain 06-29-2003 09:37 PM

Switched props around this weekend to spinning out. World of difference. Boat is way more responsive when backing. Actually will spin now vs crab walking like before. A real quick 10 sec speed burst still hit 78mph. If handling changed, I didn't notice it. BTW, boat is a '99 stepped 32' with 25" Hydros.

Nothing like trying to back in slip with levers operating azz backwards!

Next hurdle..........that 50psi water pressure!

Curt 06-30-2003 12:02 PM

So US 1 you turned yours from spinning in to spinning out and lost no speed? I guess that challenges the theory that spinning in creates more speed doesn't it?

Curt 07-09-2003 11:05 AM

ttt

US1 Fountain 07-09-2003 05:44 PM

Curt,
Sorry. I must have passed right over this one somehow.
I don't know if I did loose any top end. I have only had the boat for a few months and believe it or not, never opend it up to see what she had with the props spinning in. I have been getting use to driving a twin with steps before I was ready to top it out. The 78mph was after I switched them to spinning out. Like I mentioned, it was only a very short bust, with not enough time to play with tabs or drive. I doubt there was much, if any more to be had. I will say that since the prop swap, I can manuever it like a charm now. So much that it is even worth a 5 mph loss if there was any! But then, 78 ain't to bad either.
Jerry

Curt 07-11-2003 10:36 AM

Thanks Jerry. What motors are you running?

Airwolf767 07-11-2003 04:52 PM

Spin em "IN"
 
I would spin them in. I think by spinning the props inward you will get more top end as the centerline thrust is more in tune with the center of the boat ie providing the (more) stern lift needed to pack the air in the step. The downward prop ear gets more propulsion than the ascending prop ear (asymetrical thrust/ P-factor). When backing in think of the props as thrusters position them, then use them accordingly. When you get used to it you can make it back up on a dime,,,,,I'll help you practice if I can drink all of your beer...Ha Ha

See ya at the lake this weekend?? We'll be there sat/sun

Mike


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