needle boat - very low drag
Nemo dat quod non habet
From: John Paramore <watertoyz@frontier.com>
To: electricboats@yahoogroups.com
Sent: Monday, February 20, 2012 8:42 PM
Subject: Re: [Electric Boats] Re: Propane outboard engine
To: electricboats@yahoogroups.com
Sent: Monday, February 20, 2012 8:42 PM
Subject: Re: [Electric Boats] Re: Propane outboard engine
I've had to think about that one..."The Utility" was Snohomish County
Public Utility No. 1, the electric utility I retired from about 20
years ago. if you were asking about the marathon boat's though, I
thought I'd placed pictures in the photo's section, but apparently not .
So I've attached a picture of what i thought was the best entry. It
finished second in both the first and second marathon, mostly due to
getting outfoxed by the winner, but it was a nifty design by Yacht
designer Tim Nolan that was at home on lakes and in the open waters
of puget sound.
The hull's a 24 foot "tortured mahogany slipper powered by 2 car
batteries. Initially the team set speed through switching but the
following year they switched to a curtis controller. The motor's a 1
hp Bosch in an inboard configuration pulling a huge slow-turning 3-
blade prop. In its first competition it ran 72 miles in 12 hours. A
year later it ran the same distance in 6 hours. It's certainly longer
and slicker than a dinghy, but I think what the layout and design of
a dinghy loses to it can be nearly made up with through battery tech.
John
Public Utility No. 1, the electric utility I retired from about 20
years ago. if you were asking about the marathon boat's though, I
thought I'd placed pictures in the photo's section, but apparently not .
So I've attached a picture of what i thought was the best entry. It
finished second in both the first and second marathon, mostly due to
getting outfoxed by the winner, but it was a nifty design by Yacht
designer Tim Nolan that was at home on lakes and in the open waters
of puget sound.
The hull's a 24 foot "tortured mahogany slipper powered by 2 car
batteries. Initially the team set speed through switching but the
following year they switched to a curtis controller. The motor's a 1
hp Bosch in an inboard configuration pulling a huge slow-turning 3-
blade prop. In its first competition it ran 72 miles in 12 hours. A
year later it ran the same distance in 6 hours. It's certainly longer
and slicker than a dinghy, but I think what the layout and design of
a dinghy loses to it can be nearly made up with through battery tech.
John
On Feb 17, 2012, at 2:51 PM, Andrew Gilchrist wrote:
> John do you have more on the utility - is it hull boat mass or the
> dring
> style that makes it work so well?
>
> --
> AJ Gilchrist
> Fastelectrics
> 0419 429 201
>
>
>
>
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