T-Pain Is On A Boat: Re: [Electric Boats] SPEED

Sorry for the late reply here...I'm in the midst of a race-club
newsletter thrash and with racers scattered across the country for
National Championships life's become all about wheedling bits of news
from those I can catch before I hit a deadline-wall.

Anyway, I'm not inclined to worry about a serious stand-off, I'm just
a little concerned that a misread line can generate a lot of
problems. I understand, and noted, that nobody likes reckless
operation, which is how I'd regard anyone hurrying through lanes in a
marina, but it takes very few generic warnings about speed to
generate more serious things...You see it happen frequently in
newspaper soundoffs.

Back to racing feedback, Here's a little post-build fallout. John
Wayland did a huge rework of Zombie over the winter, and following
his 10.4 sec drag record he's been running follow-up road tests to
measure the Datsun's improved street performance and range. I know
Zombie's not a boat, and most here may not be interested in
performance, or ready to step up quite this far, but the changes John
made have resulted in an EV with daily-use performance and range that
show electric power can't be discounted any longer. Here are the
first two of John's NEDRA posts of results...Think of how some of
this could apply to a boat:

http://sports.groups.yahoo.com/group/NEDRA/message/6420

http://sports.groups.yahoo.com/group/NEDRA/message/6488

John

On Aug 11, 2010, at 7:12 AM, Mike wrote:

>
>
> "OK...before the anti-speed thought police here form a mob, let me
> offer a different view."
>
> Whoa! Slow down John. But, I don't mean that literally. No one is
> anti speed here. Like Eric I'd love to sail at hull speed all the
> time but, that does not happen. I'd also love to motor along at 5
> knots but, that won't happen for very long with my battery setup.
> But, I also would rather go fast as possible with my sail first
> before I use the motor too. Thanks to the knowledge gained here I
> am more aware of what the implications of discharging and charging
> of the battery faster than needed. I'm glad that others like
> yourself are pushing the battery and controller technology. I
> certainly read about advances with interest and will incorporate
> them into my boat when they become practical, proven and make
> sense price wise for my boat. My comment was not directed at those
> who race electric boats and go as fast as possible. It was an
> observation in my harbor where I see some sailboats heading out of
> the harbor at a fast pace using their diesel when they have
> sailboats and the winds are favorable. I now raise sail ASAP after
> I leave the mooring. But, if there is no wind I also don't feel the
> need to throttle up just for the ten minute trip out into the open
> water. For me it's about using less energy from the battery bank as
> possible. Why? Because that means I'll be running the generator for
> charging less and extending the life of the battery bank too.
> Others who return to a dock and hook into the grid may not have
> that concern. But, I'm certainly not anti speed I'm just aware of
> the limitations of the battery bank and my needs.
>
>
> Capt. Mike
>
> --- On Tue, 8/10/10, John Paramore <watertoyz@frontier.com> wrote:
>
> From: John Paramore <watertoyz@frontier.com>
> Subject: Re: [Electric Boats] SPEED
> To: electricboats@yahoogroups.com
> Date: Tuesday, August 10, 2010, 8:53 PM
>
>
> OK...before the anti-speed thought police here form a mob, let me
> offer a different view. Nobody with a clue likes reckless operation,
> so it's good to show concern there. I'm equally sure though, that
> nobody has warm-fuzzy views of getting caught pants-down in
> situations where sustained real power would be an asset. The "desire
> for speed" folks are the guys who'll sort this out for you to bring
> electric on a real par with piston power.
>
> 100 years ago electrics were a match for IC because the piston engine
> was cave-man crude, unreliable and fed from a fairly
> dangerous...Ummmm, "battery". Over the past century IC has gone
> through numerous development cycles culminating in the modern
> computer-managed operating systems and secure fuel systems that allow
> current operators to use them without a care.
>
> On the other hand, development of electric power totally stalled out,
> until just recently when fossil fuel worries finally started to be
> taken seriously and markets for alternatives began to appear. The
> huge breakthrough in battery tech is just the start, they haven't
> even begun with motor design yet. Think L-Ion is a big deal?...How
> about this?
> http://www.greentechmedia.com/articles/read/mit-harnesses-molecule-
> power/
>
> 18 years ago when I started electric boat racing there were no
> reliable heavy-duty motor controllers and no light-weight, power-
> dense batteries. By 1995 we were seeing 70 mph speeds on car
> batteries and big ugly knife switches...Switch-on, Hang-on like a
> closet kamikaze pilot. We started to see the first experimental high
> amp controllers, but still had to deal with the enormous weight and
> short performance life of lead./acid.
>
> NEDRA's advent produced an d developed Otmar's huge-amp "Zilla", the
> toughest, most reliable controller going and introduced big-scale L-
> Ion power. Applied to a racing hydroplane those have produced a 100
> mph boat that can run huge distances on a single charge. It takes
> solid reliable power to run a kilo, and over time all the things we
> learn from that will benefit the average day-cruiser with the ability
> to run a greater distance or summon sustained serious power when it's
> needed.
>
> I once had a pretty lengthy talk with a former Seattle Times sports
> editor who defended a put-down of racing with this remark: "there
> hasn't been an applied tech benefit from racing since the adaptation
> of the rear-view mirror from Ray Harroun's Indy-winning Marmon Wasp
> in 1911". When I learned he was a D-Day veteran I asked if he was
> aware that the Rolls Merlins powering the Mustangs and Spitfires that
> air-covered him from the Normandy beaches through to Bavaria were
> developed in a racing seaplane series he admitted he never knew, but
> was pleased with the info and grateful for racing's contribution.
> Nobody's forcing any of you plane your canoes or trimarans, but
> performance oriented electric boaters experiments have and will
> continue to enhance electric power's future, whether you aware of it
> or not
>
> John
>
> On Aug 10, 2010, at 11:23 AM, Capt. Mike wrote:
>
> >
> > Well said Eric and Ron. I'm amazed at the speed of some boats
> > (including sailboaters) heading out of the harbor. I find since I
> > installed Electric Propulsion I now often raise sail in the harbor
> > and sail out or cruise at a leisurely 1 or 2 knots chatting with
> > people on the docks on occasion as I do so. It's all part of the EP
> > experience. IMO.
> >
> > Capt. Mike
> >
> > Sent from on board BIANKA
> > http://biankablog.blogspot.com
> >
>
> > From: "Ron" <rlgravel@swbell.net>
> > Sender: electricboats@yahoogroups.com
> > Date: Tue, 10 Aug 2010 18:01:05 +0000
> > To: <electricboats@yahoogroups.com>
> > ReplyTo: electricboats@yah oogroups.com
> > Subject: [Electric Boats] Re: Torqeedo travel 1003
> >
> >
> > Hi Eric,
> > That last paragraph says it all and is exactly why combustion fuel
> > is still king, the desire for speed is a habit that most people
> > can't break (even when they have no need to be in a rush).
> >
> > Ron
>
>
>

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T-Pain Is On A Boat

Friday, August 13, 2010

Re: [Electric Boats] SPEED

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