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Old 04 October 2014, 12:10   #11
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Actual diameter

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Originally Posted by Firefly View Post
Thanks for that kind offer. Do you know what size they are?

I got 4 props with this boat due, I think, to the previous owners tendency to cruise in rock infested water or even in no water at all. The diameter size stamped on the props bear no relationship to the actual size. I'm guessing they have all been filed down over the years as the shape is wrong and they are all around 10.5" diameter. No wonder my revs are too high.

I am not near you but I'd buy one if it was the right size.
The actual diameter of the current prop is 9 inches.
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Old 04 October 2014, 12:16   #12
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I have also a stainless 11.75" X 17 pitch prop
Wow....did it ever get on plane.?

Mines still got the flooding hull and you can really feel it from a standstill. I'd imagine the 17" takes a while.

Shame really, as I've always wanted to know what sort of difference a s/s prop makes- but I've not had the cash to experiment.!

Plus, the general consensus is to stick with ali in case you strike something on the bottom.
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Old 04 October 2014, 12:33   #13
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Plane

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Originally Posted by Wibs View Post
Wow....did it ever get on plane.?

Mines still got the flooding hull and you can really feel it from a standstill. I'd imagine the 17" takes a while.

Shame really, as I've always wanted to know what sort of difference a s/s prop makes- but I've not had the cash to experiment.!

Plus, the general consensus is to stick with ali in case you strike something on the bottom.
Yes, no problem but revs are too high of course.
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Old 04 October 2014, 13:53   #14
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Quote:
Originally Posted by Firefly View Post
Thanks for that kind offer. Do you know what size they are?

I got 4 props with this boat due, I think, to the previous owners tendency to cruise in rock infested water or even in no water at all. The diameter size stamped on the props bear no relationship to the actual size. I'm guessing they have all been filed down over the years as the shape is wrong and they are all around 10.5" diameter. No wonder my revs are too high.

I am not near you but I'd buy one if it was the right size.
both are in the caravan at Caernarfon, but there's a ally 10.5" x 13" pitch which came with the engine, only been used for a hour or so, too small pitched for the honda, and a 11 1/8" x 13" stainless, which again is like new but too small pitched, I tried a 11" x 14" which was better for was still allowing the honda to hit the limiter at 6200, I've found a 11" x 15" ally to be the best so far. to be honest, it's a bit hit n miss what'll suit your setup, I know there are calculations you can use, but there's so many variables i found the best bet was to just fit one n try it out, luckily there's a brilliant prop builder / refurb place in Caernarfon which is worth its weight in gold, literally
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Old 04 October 2014, 18:58   #15
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I am dealing with them at present. As you say Chris, they know their stuff.
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Old 05 October 2014, 03:44   #16
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Might be a black art but some know better (or maybe just lucky?) there stuf and having had a chat with Julie at Steel Developments she suggest 11.3x13 aluminum prop which is spot on with the revs first try no guessing or collecting props!
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Old 05 October 2014, 04:08   #17
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I think you're right Nick, there are some about who know there stuff, but it's deffo a black art to me, but the likes of steel developments n these guys at Caernarfon give you faith that the knowledge is still there, they rebuilt a damaged prop for me n it looked like new, top prop shop
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Old 05 October 2014, 05:05   #18
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11.3 x 13 is the size I am going for.

I'll report back.

Thanks
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