[Public-list] Please unregister me for awhile

[Glenn Brooks]

Yykes, sorry I've not kept track of my 'un-register' email 
instructions.  didn't think I would need them.  Please take me off the 
list for a while.  My incoming mail is briming over with katrina 
response stuff and I need to triage my reading material...

thanks,

Glenn Brooks


Don Campbell wrote:

>    I am always amazed at the way modern engineers try to get horsepower or
>kilowatts out of small blocks. The way they do it is with fuel injection and
>turbochargers - very simple more fuel and or more air. The life of these smaller
>blocks is not what the old long stroke,  big bore motors gave us. Be prepared to
>buy several of these over the lifetime of  a good inboard.
>    At the current time, there are a number of unhappy owners of A4s, primarily
>due to either wear on the rings and cylinders from extended usage or  poor
>maintenance procedures over the 35 or more years that the motor has been in the
>boat. This unhappiness is the result of these motors now  not developing the
>hoprsepower they were designed to operate at, which was at least over 18, with a
>potential to go over 30. How will a 9.9 HP unit ever provide you with the safety
>you require if your sails won't work against a tide,  current or chop? As I have
>said earlier this month, the 9.9 is hard at work to propel an Alberg 22 which
>weighs 4000 lbs and the same hull design as ours, only on a much smaller scale.
>    Since you are  a naval architect and engineer, for a quick test, try the
>Alberg hull in a wave tank and see what the drag coefficient does with this
>motor that far out on the transom! I have the feeling that 110 lbs on the
>transom will be worse than the 350 lbs under the bridge deck for waterline
>balance. The other option is to work the propulsion formulae backwards to
>determine the required HP with the hull shape/ displacement and desired cruising
>speed for the AL30 hull.With the slippage or efficiency factor that you
>engineers seem to build in at around 50% , the 9.9 should look very small
>indeed, in fact harebrained as you say.
>Don
>#528
>
>J Bergquist wrote:
>
>  
>
>>Dear List,
>>
>>
>>
>>Me again, with the busted atomic 4.
>>
>>
>>
>>So I have been kicking around all kinds of harebrained ideas about how to
>>propel my boat when there is no wind. Today I went to the marina where I am
>>coming out of the water for the winter (Fairwinds on the Magothy), and I
>>discovered that they do a lot of business in outboard motors. I found out
>>that I can buy a brand new, four stroke 9.9 hp Yamaha high thrust long shaft
>>motor with electric start for only $2200. It comes with a 2 year warranty.
>>It weighs just over 100 #.
>>
>>
>>
>>Now, my other options are as follows:
>>
>>
>>
>>1.      Install a rebuilt Atomic 4. My short block is worthless. But my
>>alternator and carburetor are good. Head and manifold need replacing. By my
>>calculations, I need about $4000 to get a rebuild A4 from Moyer. Plus a
>>bunch of time and effort to install it.
>>2.      Install a new diesel. This seems to be a good option, but I'm
>>currently estimating at least $8000 after I buy shafting, propeller,
>>dripless packing, new fuel system, and a few other while-you're-at-its. Plus
>>even more time and effort spent installing it.
>>3.      Install electric propulsion. I love everything about this option
>>except the range limitation (severe!), the longevity (electronics and
>>water.no no), and the unconventional nature (might be tough to sell to a new
>>owner). Its cost is more difficult to estimate because there is not much in
>>the way of comparables, but it would be at least $5000 and maybe as much as
>>$9000. Depending on how many batteries I buy and what kind of onboard
>>charging system investment I make (solar, wind, fuel cell - yikes), it could
>>be a lot more. Then there is the risk.there's nobody out there who has a
>>comparable system and can say yes it works or no it doesn't.
>>
>>
>>
>>So I know that Yves Gelinas repowered Jean du Sud with an outboard. And he
>>seems to have come up with a nice way of mounting it on an articulating
>>bracket on the port side. My existing gas tank is on the starboard side. I
>>am thinking that I could make a real nice bracket and install the plumbing
>>for gasoline from my existing tank right out to the motor and hook it into
>>my existing electrical system (of course, it only has a 10 amp
>>alternator.wouldn't charge batteries very fast).
>>
>>
>>
>>Even considering the cost differential between this motor and an A4, I could
>>buy some really nice canvas, a second bank of batteries to make up for the
>>additional time I would have to go between charging (boosting my capacity
>>from 200 to 400 amp hours), and a super nice shore-power based charging and
>>monitoring system and still have cash left over. Not to mention my boat
>>would be a couple of hundred # lighter (would y'all still let me race?)
>>
>>
>>
>>Can someone tell me what is silly about this idea? It seems to me a really
>>good option. Allows me to invest more time and money in sailing, rather than
>>in my motor. It is, after all, a sailboat. Sometimes I think I might forget
>>that.
>>
>>
>>
>>Your pal,
>>
>>
>>
>>J Bergquist
>>
>>Calliope #287
>>
>>
>>
>>PS. Is anybody out there interested in helping me sail my boat up to
>>Fairwinds Marina on the Magothy this Saturday? I need crew!
>>
>>_______________________________________________
>>These businesses support your Association:
>>http://www.alberg30.org/store/A30supporters.html
>>Please support them.
>>_______________________________________________
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>>    
>>
>
>_______________________________________________
>These businesses support your Association:
>http://www.alberg30.org/store/A30supporters.html
>Please support them.
>_______________________________________________
>Public-list mailing list
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>
>
>  
>


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