GL: Hypertrawlering
Charles Culotta
charlesculotta at gmail.com
Wed Jul 2 11:47:08 EDT 2008
> Message: 2
> Date: Mon, 23 Jun 2008 08:31:57 EDT
>
>
>> So is Hypertrawlering doable?
>>
> It's very doable. Here are a few hints:
>
> 1. Power requirements and fuel costs rise as the cube of boat speed. Slowing
> down a couple of knots below hull speed can cut your fuel costs in half.
> Larry Z
>
-----------------------------------
As most of you know I only post from actual experience.
All last season we cruised at 1300 rpm. I had planned to cruise at my
normal 1500 but hit a sinker log in Vermont and bent a wheel and shaft.
Reducing rpm to 1300 gave me NO vibration. At the end of the season we
had covered 1,487 miles and sustained a fuel usage of 2.2 gph AVERAGE (
total for both engines and the gen set) for the entire period. Our
cruising speed was only slightly slower than " normal" as we generally
were making about 7.5 MPH. Been doing the same this year. My Perkins
6.354's NA's use .85 gph per hundred rpm in this range so for each 100
rpm I reduce my fuel usage by that amount and lose right at one half
mph per hundred rpm.
The gen set was used only sparingly so it was not really a factor.
CCC
Lying Byng Inlet, Georgian Bay waiting on weather
--
CHARLES C., JR. & PAT CULOTTA
SUPPORT OUR TROOPS
M/V CCRIDER
PATTERSON, LA.
charlesculotta.com
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