[Public-List] Propeller Question
hazlegrove at aol.com
Thu Dec 12 08:40:11 PST 2019
I have considered replacing my 30 year old 12 hp BMW diesel with a Beta 16. Can you tell me what the reduction gear is in your transmission. Also Joe, could you tell me what 3 bladed prop you are currently using and how it performs. I would imagine it might get you to hull speed in moderate conditions at a little less than max RPM. Also perhaps a little smoother than the two blade equivalent?
Mobjack Bay, VA.
> Message: 2
> Date: Tue, 10 Dec 2019 21:25:34 -0500
> From: Joseph Balderson <joebinc at gmail.com>
> To: Mike Meinhold <meinhold272 at gmail.com>
> Cc: Alberg 30 Public List -- open to all
> <public-list at lists.alberg30.org>
> Subject: Re: [Public-List] propeller
>> On Tue, Dec 10, 2019, 11:24 AM Mike Meinhold <meinhold272 at gmail.com> wrote:
>> I repowered 3 years ago from Atomic 4 to Beta 16. I decided to stay
>> with my original 2blade because the operating point was just about the
>> same. At max throttle on the A4 I think I never got more than about 16 HP,
>> moving the boat at Hull speed . With the Beta at max RPM the boat does
>> 6.4 knots in calm water.
>> A properly sized and pitched 3blade might help in headwinds and waves. I
>> recently drove right into 20-25 knots and 2-3 foot waves getting about 4.5
>> knots which is good enough for me!
>> Rinn Duin 272
>> On Tue, Dec 10, 2019 at 08:45 Joseph Balderson via Public-List <
>> public-list at lists.alberg30.org> wrote:
>>> I'm thinking of changing my 3 blade for two blade. Do you still get the
>>> power and too end speed?
>>> I have a Beta 16.
>>> Joe B
>>> Freya. #165
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