[Public-list] Propellers

[Mike Lehman]

You should not have you engine in neutral when sailing and the prop should 
not be turning. Without the engine running, there is not adequate oil 
circulation and you could damage your transimission if you the the prop 
'free wheel'.



Mike Lehman
~~~_/)_/)~~_/)~~~




----Original Message Follows----
From: Rob Alley <1ralley at comcast.net>
Reply-To: Alberg 30 Public List -- open to all <public-list at alberg30.org>
To: Alberg 30 Public List -- open to all <public-list at alberg30.org>
Subject: Re: [Public-list] Propellers
Date: Fri, 08 Jul 2005 16:41:45 -0400

Three questions:

1.  Who makes the machinery prop, please?
2.   Do you know--how many RPMs did you get with your old prop in neutral 
when sailing? 3.   How many RPMs does the new prop turn when sailing in 
neutral at the same speed?

Thanks

Rob

Dudley Baker wrote:

>All
>Much has been written on proper propellers, but here is my additional  2 
>cents:
>- Last summer, (first season for me with the boat), speed and power were 
>awful with existing prop
>--- I have a Universal MX-25, 2:1 (23 hp).  Prop was a 3-bladed 13 X 9 
>Sailor.
>-  In the end, I decided to change out the prop for a 3-bladed 13 X 12 
>Machinery.    What a
>difference!!.  At a very comfortable 1200 rpms, I am moving at 5 knots.  
>Max speed is over 6 kts @
>2800 rpm
>- If you want performance go to the machinery "mickey mouse ears" shape!!
>
>Dudley Baker
>297 Heron
>
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