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Old 16 March 2015, 07:27   #1
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Michigan wheel Ballistic prop.

Hi all

Does anyone have one fitted on smaller engine's 20hp-30 hp.Are they any good, what's your experiences thanks.
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Old 16 March 2015, 07:53   #2
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Some of the thundercat guys use them, they're a sort of semi-cleaver design. Pretty good in the surf or as an all round prop. That's on tohatsu or yamaha 50's but I'd guess they would be similar or smaller engines.
Depends what you use the boat for, generally a normal bunny ear prop is better, like a mercury vengeance with some cup added.
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Old 16 March 2015, 08:18   #3
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Hi roll hat.

I bought on a bit of whim 10 1/8
13p for my Honwave 3.5 with Mariner 20hp any advice for setting up to get best results.Will it need to be breaking the surface.
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Old 16 March 2015, 16:08   #4
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Should work fine, long as it's not too much pitch.
If it's revving high enough then it should be fine, if not you could try raising it up, little bit at a time, just keep and eye on the tell tail.

Just give it a try and see how it goes
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Old 16 March 2015, 18:33   #5
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Should work fine, long as it's not too much pitch.
If it's revving high enough then it should be fine, if not you could try raising it up, little bit at a time, just keep and eye on the tell tail.

Just give it a try and see how it goes

Hello Roflhat

That's what I was thinking reading other threads.Would I need to send to prop shop if I needed extra revs or is this a no go due to design of prop having tapered leading edge.Also do you think I will gain any speed, or just suck and see.
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Old 17 March 2015, 04:28   #6
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What prop did you have on it before? Have you got a tachometer?

You can get the prop thinned for better performance all-round, most props come from the factory very thick. Just don't bash it on any rocks! If you're not getting enough revs from it then you want to try lifting it up slowly
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Old 17 March 2015, 05:51   #7
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What prop did you have on it before? Have you got a tachometer?

You can get the prop thinned for better performance all-round, most props come from the factory very thick. Just don't bash it on any rocks! If you're not getting enough revs from it then you want to try lifting it up slowly

Good morning Roflhat,My originally old prop is black max 10 1/8 13p.I do have a tach but not tested due to weather, que the bollocking should have tested before buying.Had some money and no good at saving so it was bought.Anyway peak revs are from 4,500-5,500 so upper half of that would be in the ball park or would it thanks.Also what's the price for thinning the prop approx.
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Old 17 March 2015, 14:30   #8
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you should be alright sticking to the same pitch I reckon. You should be able to make the ballistic work fairly well. I'm really not too sure about the price of thinning a prop, I got one prop cupped at the same time but we have a tab there so I'm not sure. I went to steel developments for mine, worth sending them an email for a quote
What sort of speeds were you getting before?
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Old 18 March 2015, 06:45   #9
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you should be alright sticking to the same pitch I reckon. You should be able to make the ballistic work fairly well. I'm really not too sure about the price of thinning a prop, I got one prop cupped at the same time but we have a tab there so I'm not sure. I went to steel developments for mine, worth sending them an email for a quote
What sort of speeds were you getting before?

Morning all

To question Roflhat,I was getting consistent 24 mph with 2 people approx 31 stone, I'm 20 at 6 ft 3 a big old unit.
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Old 18 March 2015, 10:01   #10
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Morning all

To question Roflhat,I was getting consistent 24 mph with 2 people approx 31 stone, I'm 20 at 6 ft 3 a big old unit.

Just been on the phone to Steel Developement and to have the prop thinned it would be in the region of 180, to have it repitched and a balanced 62.tThe thinning is not really an option at the moment .
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