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Hanse 348 Alternative Propeller |
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Mike58 
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Joined: 07 April 2021 Location: UK Status: Offline Points: 22 |
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 Topic: Hanse 348 Alternative PropellerPosted: 06 May 2023 at 18:09 |
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Hi - has anyone fitted a 3 blade prop to their Hanse 348? The standard propeller does not appear to be very efficient. Anyone else felt the same?
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Mike L
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Brufan
Rear Admiral 
Joined: 16 December 2010 Location: Belgium Status: Offline Points: 672 |
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Posted: 07 May 2023 at 18:02 |
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Original Volvo fixed prop is a crappy thing.
Under 38-40 ft, you don't need a 3 blade prop. I'm very happy with my composite 2blade Flex-o-Fold ; far more efficient than original fixed prop (300 rpm less at same speed and 15 % less fuel) |
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Bruno
hanse 355 - 57 S/Y Spicy Ginger White hull, 2 cabins, Volvo D1-30, Selden rig, removable mainsheet track system, Simrad (now B&G)-Jefa autopilot. |
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Mike58
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Joined: 07 April 2021 Location: UK Status: Offline Points: 22 |
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Posted: 22 July 2023 at 16:05 |
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Hi. I have found the same and am considering alternatives. It works well manoeuvring in harbour but for long passages it is not efficient. It is the standard 2 blade folding prop. Not sure oftype. Am investigating.
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Mike L
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Sounder
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Joined: 11 February 2021 Location: New York Status: Offline Points: 130 |
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Posted: 24 July 2023 at 17:18 |
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On NADINE with a 29 HP Yanmar, I seem to be able to get 7.2 knots with the throttle wide open at 3,200 RPM and about 5 knots at 2,000 RPM. Certainly quite adequate, I agree, but I would love to get a little more performance when under power too. Interested to hear additional thoughts from the group. S/V NADINE Hanse 348 (#199)
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David S
NADINE (Hanse 348 #199) Western Long Island Sound |
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Fendant
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Joined: 03 November 2012 Location: Switzerland Status: Offline Points: 1671 |
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Posted: 24 July 2023 at 18:53 |
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This is low speed.
I am getting with the 29HP Volvo and standard Hanse 2 blade folding prop: 2000 rpm gives 5.9 - 6.0 knots 2300 rpm gives 6.5 knots |
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Frank
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Mike58
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Joined: 07 April 2021 Location: UK Status: Offline Points: 22 |
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Posted: 25 July 2023 at 09:13 |
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My speeds are 5kts at 2,300 with 29hp. Whilst speed is acceptable I would have expected with a 29hp to have achieved this with lower revs - around 1800-2000.
Edited by Mike58 - 25 July 2023 at 09:54 |
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Mike L
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Sounder
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Joined: 11 February 2021 Location: New York Status: Offline Points: 130 |
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Posted: 25 July 2023 at 13:13 |
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It's good to have your data. I agree that the 29 hp seems like it should do better. I will clean the paddle wheel on my DST transducer this weekend and see if that makes a difference. Otherwise, I may be due for a bottom cleaning. In the water (western Long Island Sound) since April 1. Thank you all very much.
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David S
NADINE (Hanse 348 #199) Western Long Island Sound |
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