[PUP] BSFC (wasKrogen 55 Expedition vs Dashew FPB64)

[John Marshall]

It's a good question, Robert... just trying help by understanding  
your rough plans. There are good boats from several manufacturers,  
but prioritizing them depends on usage and needs.

How large of a boat (or price) are you looking at?

Luxurious accommodations and interior finish  (dishwashers, SubZero  
refrigerators, big screen TV, teak interior, etc. etc. ) or a more  
basic boat? Air conditioning?

Do you plan to liveaboard full time, other than during the circumnav?

What about guests or extra crew plans?  Two staterooms or three? Or  
just a couple's boat?

Are you stepping up from a smaller power boat or coming from sail?

Where are you going to keep boat (availability of slips depending on  
size various a lot with area) and might drive decisions? (Ten year  
waits in some areas for certain size slips).

 From that, maybe we can narrow recommendations down a bit.

John

On Oct 21, 2007, at 3:05 PM, Robert Miller wrote:

> John,
>
> It was a bit of an open ended questions.  My wife and I intend on  
> coastal
> cruising for a couple of years learning the systems and  
> seamanship.  We plan
> on circumnavigating at some time after that.  Possible a 2-3 year  
> trip.  I
> was just hoping for some answers from folks that have experience  
> and what
> choices that would make.
>
> Thanks for your help.
>
> Regards,
>
> Robert Miller
>
>
>> From: John Marshall <johnamar1101 at gmail.com>
>> Reply-To: Passagemaking Under Power List
>> <passagemaking-under-power at lists.samurai.com>
>> Date: Sun, 21 Oct 2007 12:25:57 -0700
>> To: Passagemaking Under Power List
>> <passagemaking-under-power at lists.samurai.com>
>> Subject: Re: [PUP] BSFC (wasKrogen 55 Expedition vs Dashew FPB64)
>>
>> That's an incredibly complicated question, Robert. Sort of like
>> asking what's the best car to buy without giving the respondent any
>> other information. If you can summarize your planned usage, likely
>> routes, planned ocean crossings or coastal cruising, etc. etc. etc.
>> The boat at the top of one list of requirements might be at the
>> bottom of another.
>>
>> John Marshall
>>
>> On Oct 21, 2007, at 9:35 AM, Robert Miller wrote:
>>
>>> Not to take away from your conversation about the Krogen and
>>> Dashew, but
>>> this is my first post to PUP.  I would like to know from you what  
>>> you
>>> consider the top five passage makers to be and why.  My wife and  
>>> I are
>>> getting very close to retiring to a boat and intend on extensive
>>> cruising.
>>> I have been reading Passage Maker for some years now and would
>>> really like
>>> some "real world" help on the purchase of a passage maker.
>>> Considering
>>> safety and fuel consumption, I could really use some help.
>>>
>>>
>>> Kindest Regards,
>>>
>>> Robert Miller
>>>
>>> Imagecom, Inc.
>>> 3729 East 82nd Place
>>> Tulsa, Oklahoma 74137
>>> robert at imagecominc.com
>>> 918-704-8233
>>> 918-494-0012   FAX
>>>
>>>
>>>
>>>> From: <Truelove39 at aol.com>
>>>> Reply-To: Passagemaking Under Power List
>>>> <passagemaking-under-power at lists.samurai.com>
>>>> Date: Sun, 21 Oct 2007 08:18:22 EDT
>>>> To: <mikem at yachtsdelivered.com>
>>>> Cc: <passagemaking-under-power at lists.samurai.com>
>>>> Subject: [PUP] BSFC (wasKrogen 55 Expedition vs Dashew FPB64)
>>>>
>>>> Hi  Mike -
>>>>
>>>> I  think we need to compare similar horsepower engines for this
>>>> discussion,
>>>> and I think 0.275 is pretty optimistic for 400HP. What engine is
>>>> achieving
>>>> that  figure?
>>>>
>>>> Within  a reasonable range of HP,  4-stroke engines will have
>>>> approximately
>>>> the  same BSFC at the same rating, i.e. at max torque, where BSFC
>>>> is lowest,
>>>> and at  max HP, where it is typically 0.05 lb/hp/hr higher. Same
>>>> is true for
>>>> 2-stroke  Diesels, which will burn about another 0.04 more than a
>>>> 4-stroke.
>>>>
>>>> Of  course MMMV!
>>>>
>>>> Regards,
>>>>
>>>> John
>>>> "Seahorse"
>>>>
>>>>
>>>>> Smaller engines generally use more fuel per pound of horsepower
>>>>> per hour.
>>>> The 60 hp Isuzu 4JB1 uses about .350 pounds per hour per   
>>>> horsepower.
>>>> A 400 hp engine is more likely to be about .275.
>>>>
>>>> This  detail is one factor which can not be  ignored.
>>>>
>>>>
>>>>
>>>>
>>>>
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>>
>> Passagemaking Under Power and PUP are trademarks of Water World  
>> Productions,
>> formerly known as Trawler World Productions.
> _______________________________________________
> http://lists.samurai.com/mailman/listinfo/passagemaking-under-power
>
> To unsubscribe send email to
> passagemaking-under-power-request at lists.samurai.com with the word
> UNSUBSCRIBE and nothing else in the subject or body of the message.
>
> Passagemaking Under Power and PUP are trademarks of Water World  
> Productions, formerly known as Trawler World Productions.