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From: Apa Ongpin (no email)
Date: Tue Aug 07 2007 - 02:26:13 EDT
Apart from pure efficiency, another consideration:
>From "All About Powerboats" by Roger Marshall (2002, International Marine/
McGraw Hill):
"A hull with a centerline keel requires a prop with an odd number of blades
to eliminate the possibility of two blades being masked by the keel at any
one time. If this were to happen, you would probably hear and feel
vibrations throughout the boat."
Rafael
On 8/3/07 6:29 AM, "" <> wrote:
> In a message dated 8/2/07 6:17:40 PM, writes:
>
>
>>
>> Larry,
>>
>>
>>
>> The question was still not answered.....3 blades or four???
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