[Alberg30] two blade vs. three

[Kevin Blanc]

And if you are trying to pull the shaft out with thea three-blade prop 
attached, you have to push the rudder over in the right direction and 
spin the prop in such a way that it "screws" itself out. I think I had 
to push the rudder to port and turn the prop counter clockwise... any 
other combination and it wouldn't work.

R.C. Alley wrote:

>Mike Lehman is probably right, with regard to backing with a 2 blade--in
>fact I know he is. But you might also find that you get better forward
>movement with a 3 blade, by which I mean that (the theory is) you have less
>slippage per revolution of prop with a 3 than a 2.  If you motor a lot, this
>may be important to you. If the extra drag is of concern to you, and you
>don't make a habit of backing up a lot, by all means go with a 2 blade.
>Your shaft should slide out fine without 2 blade prop removal. Mine does.
>
>But I am puzzled.  You should be able to get your prop off the shaft with a
>gear puller, and then get the shaft out, without unshipping the rudder,
>regardless of prop.  Is there something unusual about your rudder or prop
>aperture? Or shaft length? And, why do you need to take your shaft out?
>
>By the way, what size is your prop?  I am looking for a 3 blade......
>
>Rob Alley
>----- Original Message -----
>From: <FINNUS505 at aol.com>
>To: <public-list at alberg30.org>
>Sent: Thursday, April 03, 2003 7:32 AM
>Subject: [Alberg30] two blade vs. three
>
>
>>One more question; anyone using a two blade prop with a diesel? Any
>>
>problems?
>
>>Can the prop be removed without having to  unship the rudder?
>>OK, that's three questions. But I am seriously considering switching to a
>>
>two
>
>>blade prop once I have this one off during this project if there are no
>>serious disadvantages. I don't like the idea of dragging around that third
>>blade while sailing if not necessary, either.
>>thx,
>>Lee
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>
>
> +---------------------------------------------------------------+
> |                This Old Boat by Don Casey                     |
> | http://www.amazon.com/exec/obidos/ASIN/0071579931/alberg30-20 |
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 |                This Old Boat by Don Casey                     |
 | http://www.amazon.com/exec/obidos/ASIN/0071579931/alberg30-20 |
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