X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao104.cox.net ([68.230.241.42] verified) by logan.com (CommuniGate Pro SMTP 5.2.2) with ESMTP id 2874241 for flyrotary@lancaironline.net; Sun, 27 Apr 2008 11:51:52 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.42; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao104.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20080427155113.GJLI16991.fed1rmmtao104.cox.net@fed1rmimpo01.cox.net> for ; Sun, 27 Apr 2008 11:51:13 -0400 Received: from wills ([68.105.85.56]) by fed1rmimpo01.cox.net with bizsmtp id JfrA1Z0061CvZmk03frBEt; Sun, 27 Apr 2008 11:51:11 -0400 Message-ID: <002301c8a87e$841196b0$38556944@wills> From: "Mike Wills" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Bill Dube and Killacycle? Date: Sun, 27 Apr 2008 08:51:11 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0020_01C8A843.D76D9F60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0020_01C8A843.D76D9F60 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable The Killacycle uses lithium phosphate batteries manufactured by the A123 = company. Look up A123 on Wikipedia for details. The A123 cells are the = ones used by Dewalt in their high end lithium power tools. The A123 cells have been used quite a bit by the RC crowd as an = alternative to lithium polymers which have been pretty popular in RC for = a few years. In fact lithium polymer has really made electric powered RC = flight possible/practical. Compared to lithium polymer the A123 cells = have a lower power density, are heavier, and are far less volatile to = use than lithium polymer. They are also cheaper due to their high volume = use by Dewalt compared to the relatively low volume RC market for = li-poly. As far as I know there is still no way for an end user to buy = A123s as raw cells. The guys using them in RC buy Dewalt battery packs = and hack them. For guys looking for a cheaper electric alternative to = li-poly who dont need max performance the A123 cells are a good choice. Li-poly is still the only battery technology that I know of that has the = potential to actually power a man carrying aircraft. In fact they are = currently being used in several European self launch sailplane designs. = There is also a guy here in the US marketing a Ultralight trike that is = electric powered and he has an electric self launch sailplane almost = ready to fly. Still electric power is a niche that isnt yet practical for most pilots. = Li-polys are expensive, still considerably heavier than gasoline with = less energy density, and are potentially very hazardous if mishandled or = damaged. Mike Wills ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Sunday, April 27, 2008 7:23 AM Subject: [FlyRotary] Bill Dube and Killacycle? I saw the battery powered Killacycle drag racing on TV last night = against a gasoline powered drag cycle in the quarter mile. They both = hit 160 mph with the gasoline cycle bearly beating the Killacycle by a = small margin. Speaking of which has anyone heard anything recently from = Bill Dube and his very interesting work on that new type of battery?? Here is a video link to one of the killacycle's burnout and drag races = for those of you not familiar with the work Bill has done. =20 http://www.youtube.com/watch?v=3D70j9rTyd0zo&feature=3Drelated Bill Dube are you still one the list??? Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html ------=_NextPart_000_0020_01C8A843.D76D9F60 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
The Killacycle uses lithium phosphate = batteries=20 manufactured by the A123 company. Look up A123 on Wikipedia for=20 details. The A123 cells are the ones used by Dewalt in their high = end=20 lithium power tools.
 
The A123 cells have been used quite a = bit by the RC=20 crowd as an alternative to lithium polymers which have been pretty = popular in RC=20 for a few years. In fact lithium polymer has really made electric = powered RC=20 flight possible/practical. Compared to lithium polymer the A123 cells = have a=20 lower power density, are heavier, and are far less volatile to use than = lithium=20 polymer. They are also cheaper due to their high volume use by Dewalt = compared=20 to the relatively low volume RC market for li-poly. As far as I know = there is=20 still no way for an end user to buy A123s as raw cells. The guys using = them in=20 RC buy Dewalt battery packs and hack them. For guys looking for a = cheaper=20 electric alternative to li-poly who dont need max performance the A123 = cells are=20 a good choice.
 
Li-poly is still the only battery = technology that I=20 know of that has the potential to actually power a man carrying = aircraft. In=20 fact they are currently being used in several European self launch = sailplane=20 designs. There is also a guy here in the US marketing a Ultralight trike = that is=20 electric powered and he has an electric self launch sailplane almost = ready to=20 fly.
 
Still electric power is a niche that = isnt yet=20 practical for most pilots. Li-polys are expensive, still considerably = heavier=20 than gasoline with less energy density, and are potentially very = hazardous if=20 mishandled or damaged.
 
Mike Wills
----- Original Message -----
From:=20 Ed=20 Anderson
Sent: Sunday, April 27, 2008 = 7:23=20 AM
Subject: [FlyRotary] Bill Dube = and=20 Killacycle?

I saw the battery powered =  Killacycle drag=20 racing on TV last night against a gasoline powered drag cycle in the = quarter=20 mile.  They both hit 160 mph with the gasoline cycle bearly = beating the=20 Killacycle by a small margin.  Speaking of which has anyone heard = anything recently from Bill Dube and his very interesting work on = that=20 new type of battery??
 
Here is a video link to one of the = killacycle's=20 burnout and drag races for those of you not familiar with the work = Bill has=20 done. 
http://www.youtube.com/watch?v=3D70j9rTyd0zo&feature=3Drelated=
 
Bill Dube are you still one the=20 list???
 
 
Ed Anderson
Rv-6A N494BW Rotary=20 Powered
Matthews, NC
eanderson@carolina.rr.comhttp://www.andersonee.com
http:/= /members.cox.net/rogersda/rotary/configs.htm#N494BW
http://www.dmack.net/mazda= /index.html
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