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Author	Topic:   Outrage 18, 130-HP
CCIM	posted 08-25-2008 09:12 PM ET (US)         I just picked up an 1989 Outrage 18 that has [a Yamaha 130-HP motor] with a 17-inch-pitch propeller. The 130-HP Yamaha is currently turning well over 5,800-RPM, so I am thinking about a 19-inch pitch propeller or a four-blade propeller. [Seeks] suggestions [for a suitable propeller of 19-inch-pitch or four-blade construction].
Tom W Clark	posted 08-25-2008 09:16 PM ET (US)             Exactly what "17-inch-pitch propeller" are we talking about? There's an awful lot more to propeller selection than just the pitch and the number of blades.
CCIM	posted 08-25-2008 09:19 PM ET (US)             [The propeller currently being used on the boat] looks like a standard three-blade Yamaha stainless steel propeller.
Tom W Clark	posted 08-25-2008 09:26 PM ET (US)             The Yamaha Painted Black Stainless Steel propellers are good propellers. The semi-cleaver design offers good stern lift which the Outrage 18 does not necessarily need but they can also be fast. Go ahead and try the 13-3/4" x 19" size and see how it does. You could also try the Yamaha Performance 3 Series (same as the Stiletto Advantage 4.75) if you wanted a bit more top speed.
elaelap	posted 08-25-2008 11:48 PM ET (US)             First of all, welcome to this great website, CCIM. You've got a wonderful boat there--I owned and loved 'Cetaceous', a 1988 version of the OUTRAGE 18, for almost three years and put around 760 wonderful hours on its Yamaha F115 four-cycle motor during that time. I started with a Yamaha black stainless 19P prop but was somewhat dissatisfied because I wasn't turning more than around 5,400 to 5,500-RPM wide open, though my top end was a decent 40 mph on a good day. With Tom Clark's always helpful advice and assistance, I went down two inches in pitch to a 17, stuck with the same Yami black stainless prop, and rpm increased to 58-5900, which is right about where I wanted it (top speed didn't really change at all, but the boat was marginally quicker on plane). While Yamaha wants their four stroke motors up close to 6000 rpm/WOT, I assume yours (at 130 hp) is a two stroke, and if it is already "well over 5800 rpm" I would completely agree with Tom--go ahead and see how she goes with a 19P prop. I'll bet that motor will turn it without a problem and you'll see top end speeds in the low forties. Tell us how it turns out, eh? Best of luck with your new boat, which many of us believe is the finest little skiff ever made. Tony
CCIM	posted 08-26-2008 07:18 AM ET (US)             Thanks for your help. I will try a [propeller with 19-inch pitch] this weekend and report back.
Plotman	posted 08-26-2008 09:36 AM ET (US)             I have a pair of Yamaha 130s on my 22. The redline for that engine is 6,000-RPM, so I would say that if you are topping out at 5,800-RPM you are pretty much in the zone.
Tohsgib	posted 08-26-2008 10:06 AM ET (US)             I thought the 130's redlined at 6,000-RPM, but I was not certain.
jimh	posted 08-26-2008 08:49 PM ET (US)             What is the boat speed at wide-open-throttle?
Tom W Clark	posted 08-27-2008 12:59 PM ET (US)             If the motor in question redlines at 6000 RPM instead of 5500 RPM, then stick with a 17-ish inch pitch propeller.

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