X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from web81006.mail.mud.yahoo.com ([68.142.199.86] verified) by logan.com (CommuniGate Pro SMTP 5.1c.2) with SMTP id 1225962 for flyrotary@lancaironline.net; Thu, 06 Jul 2006 10:00:05 -0400 Received-SPF: none receiver=logan.com; client-ip=68.142.199.86; envelope-from=deltaflyer@prodigy.net Received: (qmail 1189 invoked by uid 60001); 6 Jul 2006 13:59:21 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=prodigy.net; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=t5R55bYVHBtRg8yCkoH2Vjeg8JJlyoBFCWmHm8q/XlC5NMZMQZIbu4I5uGHCvKvbPopeo3jV/RKf7PWkwcn70FkNivi0azcwMADSZF3dGbxx6K+K4WPEEeEmZzsFBLI5vjeqgeiJaZVxwVPox6XEuzJep8JccbtmzEFiCN04NIw= ; Message-ID: <20060706135921.1187.qmail@web81006.mail.mud.yahoo.com> Received: from [199.231.49.128] by web81006.mail.mud.yahoo.com via HTTP; Thu, 06 Jul 2006 06:59:21 PDT Date: Thu, 6 Jul 2006 06:59:21 -0700 (PDT) From: James Maher Subject: Re: [FlyRotary] Re: Nothing to do with Rotary Engines, but.... To: Rotary motors in aircraft In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-909491917-1152194361=:98194" Content-Transfer-Encoding: 8bit --0-909491917-1152194361=:98194 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Bill, What technology are these batteries? Are they Li-Ion or some other material? Thanks, Jim "BillDube@killacycle.com" wrote: At the moment, about the best that commercial Li-Ion rechargeable cells can do is about 200+ W-hr/kg. In more familiar units, this translates to about 1/2 HP for an hour for each pound of batteries carried. Basically, the weight in pounds will be twice the HP times the number of hours that you want. Good for a motor-glider, but that is about it. Bill Dube' At 07:45 PM 7/5/2006, you wrote: >Really was something to see that Bike burn out... > >Or may even to skew Bob's comment some, How about 175hp for 20 minutes, then >125hp for 4 hours, with a 30 minute 175hp reserve. > >Tony Snow (Bearhawk #753) > >-----Original Message----- >From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On >Behalf Of Bob White >Sent: Wednesday, July 05, 2006 9:01 PM >To: Rotary motors in aircraft >Subject: [FlyRotary] Re: Nothing to do with Rotary Engines, but.... > > >Very impressive indeed. Another one or two orders of magnitude >improvement and we can forget the rotary and just put an electric motor >up front (or out back if you're so inclined). Now that would be >simple, reliable, and quiet too boot. How about it Bill? Can you give >me 175 HP for 4-5 hours in 200 lbs or so? (Damn the cost, that would >be worth taking out a new mortgage on the house.) ;) > >Bob W. > > >On Wed, 5 Jul 2006 20:36:29 -0400 >"Ed Anderson" wrote: > > > > > > Very impressed with your electric drag bike endeavors - got to be almost >as > > good as flying a rotary {:>) > > > > Ed > > > > Ed Anderson > > Rv-6A N494BW Rotary Powered > > Matthews, NC > > eanderson@carolina.rr.com > > http://members.cox.net/rogersda/rotary/configs.htm#N494BW > > ----- Original Message ----- > > From: "Bill Dube" > > To: "Rotary motors in aircraft" > > Sent: Wednesday, July 05, 2006 7:50 PM > > Subject: [FlyRotary] Nothing to do with Rotary Engines, but.... > > > > > > > This has absolutely nothing to do with rotary engines, but I thought I'd > > > show you what has been distracting me from my airplane construction as >of > > > late. > > > > > > For those of you that don't already know, my other hobby is drag racing >an > > > electric motorcycle. (It takes a team of people to do this, not just >me.) > > > We recently managed to get sponsorship from A123 Systems. These >batteries > > > are like "Mr. Fusion" in the movie "Back to the Future." Enormous power > > > and a bottomless pit of energy. The more I work with these batteries, >the > > > more impressed I become. > > > > > > Here is a clip of the bike doing a burn-out: > > > > > > http://www.killacycle.com/Burnout.wmv > > > > > > Here is a clip of the bike turning parts of the rear motor into >molten > > > copper as it goes down the strip: > > > > > > http://www.killacycle.com/Second%20Run.wmv > > > > > > We can do six burn-outs and six runs without recharging if we cared > > > to. Maybe seven. > > > > > > The 170 battery pack puts out over 350 HP. The battery pack is 376 > > > volts, 1350 amps, and has 18.4 A-hrs. We charge up in about 15 minutes > > > after every run. > > > > > > I plan to start building airplane batteries with them soon, by the >way. > > > It will be late Winter, probably. A123 Systems batteries are ideal for > > > aircraft. They are lightweight, powerful, robust, long cycle life, and > > > very, very safe. I'm pretty sure I can build a battery that will crank >500 > > > amps, but will weigh less than 3 lbs. > > > > > > I guess it had something to do with airplanes.... :-) > > > > > > Bill Dube' > > > > > > -- > > > Homepage: http://www.flyrotary.com/ > > > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > > > > > > > > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > > >-- >http://www.bob-white.com >N93BD - Rotary Powered BD-4 (first engine start 1/7/06) >Custom Cables for your rotary installation - >http://www.roblinphoto.com/shop/ > >-- >Homepage: http://www.flyrotary.com/ >Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > > > >-- >Homepage: http://www.flyrotary.com/ >Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ --0-909491917-1152194361=:98194 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Bill,
What technology are these batteries?
Are they Li-Ion or some other material?
Thanks,
Jim

"BillDube@killacycle.com" <billdube@killacycle.com> wrote:
At the moment, about the best that commercial Li-Ion rechargeable
cells can do is about 200+ W-hr/kg.

In more familiar units, this translates to about 1/2 HP for an hour
for each pound of batteries carried. Basically, the weight in pounds
will be twice the HP times the number of hours that you want.

Good for a motor-glider, but that is about it.


Bill Dube'


At 07:45 PM 7/5/2006, you wrote:

>Really was something to see that Bike burn out...
>
>Or may even to skew Bob's comment some, How about 175hp for 20 minutes, then
>125hp for 4 hours, with a 30 minute 175hp reserve.
>
>Tony Snow (Bearhawk #753)
>
>-----Original Message-----
>From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
>Behalf Of Bob White
>Sent: Wednesday, July 05, 2006 9:01 PM
>To: Rotary motors in aircraft
>Subject: [FlyRotary] Re: Nothing to do with Rotary Engines, but....
>
>
>Very impressive indeed. Another one or two orders of magnitude
>improvement and we can forget the rotary and just put an electric motor
>up front (or out back if you're so inclined). Now that would be
>simple, reliable, and quiet too boot. How about it Bill? Can you give
>me 175 HP for 4-5 hours in 200 lbs or so? (Damn the cost, that would
>be worth taking out a new mortgage on the house.) ;)
>
>Bob W.
>
>
>On Wed, 5 Jul 2006 20:36:29 -0400
>"Ed Anderson" wrote:
>
>
> >
> > Very impressed with your electric drag bike endeavors - got to be almost
>as
> > good as flying a rotary {:>)
> >
> > Ed
> >
> > Ed Anderson
> > Rv-6A N494BW Rotary Powered
> > Matthews, NC
> > eanderson@carolina.rr.com
> > http://members.cox.net/rogersda/rotary/configs.htm#N494BW
> > ----- Original Message -----
> > From: "Bill Dube"
> > To: "Rotary motors in aircraft"
> > Sent: Wednesday, July 05, 2006 7:50 PM
> > Subject: [FlyRotary] Nothing to do with Rotary Engines, but....
> >
> >
> > > This has absolutely nothing to do with rotary engines, but I thought I'd
> > > show you what has been distracting me from my airplane construction as
>of
> > > late.
> > >
> > > For those of you that don't already know, my other hobby is drag racing
>an
> > > electric motorcycle. (It takes a team of people to do this, not just
>me.)
> > > We recently managed to get sponsorship from A123 Systems. These
>batteries
> > > are like "Mr. Fusion" in the movie "Back to the Future." Enormous power
> > > and a bottomless pit of energy. The more I work with these batteries,
>the
> > > more impressed I become.
> > >
> > > Here is a clip of the bike doing a burn-out:
> > >
> > > http://www.killacycle.com/Burnout.wmv
> > >
> > > Here is a clip of the bike turning parts of the rear motor into
>molten
> > > copper as it goes down the strip:
> > >
> > > http://www.killacycle.com/Second%20Run.wmv
> > >
> > > We can do six burn-outs and six runs without recharging if we cared
> > > to. Maybe seven.
> > >
> > > The 170 battery pack puts out over 350 HP. The battery pack is 376
> > > volts, 1350 amps, and has 18.4 A-hrs. We charge up in about 15 minutes
> > > after every run.
> > >
> > > I plan to start building airplane batteries with them soon, by the
>way.
> > > It will be late Winter, probably. A123 Systems batteries are ideal for
> > > aircraft. They are lightweight, powerful, robust, long cycle life, and
> > > very, very safe. I'm pretty sure I can build a battery that will crank
>500
> > > amps, but will weigh less than 3 lbs.
> > >
> > > I guess it had something to do with airplanes.... :-)
> > >
> > > Bill Dube'
> > >
> > > --
> > > Homepage: http://www.flyrotary.com/
> > > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
> > >
> >
> >
> >
> > --
> > Homepage: http://www.flyrotary.com/
> > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
>
>
>--
>http://www.bob-white.com
>N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
>Custom Cables for your rotary installation -
>http://www.roblinphoto.com/shop/
>
>--
>Homepage: http://www.flyrotary.com/
>Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
>
>
>
>--
>Homepage: http://www.flyrotary.com/
>Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/


--
Homepage: http://www.flyrotary.com/
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