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Old 07 February 2007, 15:03   #1
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Two bladed or three bladed prop ?

I picked up a absolute steal of a outboard off ebay ( £37 ! ) it is a little 5hp longshaft and it is perfect for what I want, the thing is there are quite big chips in the prop ( 3 bladed ), it is plastic. The thing is I also have a two bladed 3hp engine and the prop is metal.

I was wondering what the difference would be if i put the two bladed one on the 5hp ( ie speed, stability etc ) if any. Or is that dangerous and stupid ?
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Old 07 February 2007, 17:52   #2
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Try it and tell us how you get on.

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Old 07 February 2007, 18:33   #3
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Try it and tell us how you get on.

Agree.
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Old 07 February 2007, 20:23   #4
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What make are the outboards?
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Old 08 February 2007, 05:25   #5
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Riiiiight then, death on the thames, here I come.

One is a evinrude and the other is a force outboard.

They are tranferable ( I have tried it ), just not on the water.

I think I will give it a little go in the bucket, and do a unscientific experiement to see which one can fling water the furthest.
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Old 08 February 2007, 06:21   #6
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Riiiiight then, death on the thames, here I come.

One is a evinrude and the other is a force outboard.

They are tranferable ( I have tried it ), just not on the water.

I think I will give it a little go in the bucket, and do a unscientific experiement to see which one can fling water the furthest.
Don't-you'll break the bucket and bugger the impeller using the 5hp.

If you put the prop from the 3hp on the 5hp you'll overrev.
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Old 08 February 2007, 08:52   #7
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what Nos4r2 said would the most likely outcome.
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