X-Virus-Scanned: clean according to Sophos on Logan.com From: "Ernest Christley" Received: from nm16-vm6.bullet.mail.ne1.yahoo.com ([98.138.91.109] verified) by logan.com (CommuniGate Pro SMTP 6.1.7) with ESMTPS id 8215964 for flyrotary@lancaironline.net; Thu, 03 Dec 2015 12:22:59 -0500 Received-SPF: none receiver=logan.com; client-ip=98.138.91.109; envelope-from=echristley@att.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1449163362; bh=A0yeZCufVv2WQNqnVqJ8/JFwFskOz6ZS2ccZx4yRrbY=; h=Date:From:Reply-To:To:In-Reply-To:References:Subject:From:Subject; b=3m4gzzqUY6j9tqlxWYn6cm7jQoLESIk8FCREMqgi9TpyxkYcQJTXegR4cide/pvMNQu30rzTQCarl/yYJqGa+fLbkqYMlOpaZ3TjsW9wAdGAYPEXarysjDpqMAOCGWWDN61DhKmZg2p8kTMFN2wujlXtIrN1iHyLEdKP4sfiFJo= Received: from [98.138.101.129] by nm16.bullet.mail.ne1.yahoo.com with NNFMP; 03 Dec 2015 17:22:42 -0000 Received: from [98.138.226.165] by tm17.bullet.mail.ne1.yahoo.com with NNFMP; 03 Dec 2015 17:22:42 -0000 Received: from [127.0.0.1] by omp1066.mail.ne1.yahoo.com with NNFMP; 03 Dec 2015 17:22:42 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 177039.21740.bm@omp1066.mail.ne1.yahoo.com X-YMail-OSG: VGX0azMVM1mBAdEYfzXZrDuX3XA3oNF5Cg.UngdXKcgcS4xPcmWrqixxbR7sfIm U3AytoM58AjTI65_OqoYtWOVw7LEZESzqhTqlzztt95nxlvgxQvBEBVHi9JWzrqq3PKh3dH.olKg t6QuQCIQvEWGHVoxiCjlWBZUm2d_8f1pPkVtUQ5FsM5xIWMDkPjP6.ivQjLuRjHRIjiCgOKE2CC2 GECQ_0jfUY7KNQlcUXPFkOL0_.5bCG9G46RGKpokLRRDMznVzOUkFbgooanr6T585PCu3O7P2hWZ zZgzlqP29wqq0MS_NaKhcelJA0E1_uJ3rmwS4EDMk1BWBEeX1EmF6L1O6PFwM5TPxZQnZAFrf8Do wqnaWA4YbLuB87KiIXQABrmmDCJsIJqEBHVnu9_KS6_7DK5J32tdxQoRk_dwTZSRzgCdCjrl8_eM net_8PPAx3xG.hIk7Umyqc7WgOXh.vcz1OHb3ovPEcnTRBw59TK.Hq6f250.rqistQOzCBjlw9oO GzCnntJU0D61qTWab.wpFcaiF9dh_nnSbmA-- Received: by 98.138.101.167; Thu, 03 Dec 2015 17:22:41 +0000 Date: Thu, 3 Dec 2015 17:22:41 +0000 (UTC) Reply-To: Ernest Christley To: Rotary motors in aircraft Message-ID: <1353193294.12004775.1449163361256.JavaMail.yahoo@mail.yahoo.com> In-Reply-To: References: Subject: Re: [FlyRotary] Re: Interesting MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_12004774_501529935.1449163361233" Content-Length: 4550 ------=_Part_12004774_501529935.1449163361233 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable You can do that already, Charlie.=C2=A0 :-) But I think this design is a little to gimmicky.=C2=A0 390lbs useful load i= s me and a child.=C2=A0 And where are we seriously going to go within 200mi= les?=C2=A0 A serious effort would drop the cost, complexity, weight, drag a= nd airflow disruption of eight of those motors to produce a decent electric= plane.=C2=A0 Then I suspect you could get 3-500 miles with a 450lb load (M= e, my girl, and her bikini.)=C2=A0 (On second thought, no need to make allo= wances for the bikini.) =20 On Thursday, December 3, 2015 11:56 AM, Charlie England wrote: =20 On 12/3/2015 2:26 AM, steve Izett wrote: =20 The Future may be very interesting and at current rate of change in batter= y tech, may be closer perhaps than we envisage! Though some of you might be= interested if you haven=E2=80=99t seen this proposal yet.=20 Cheers Steve Izett http://www.jobyaviation.com/S2/ =20 =20 I agree; the future is closer than we tend to think. :-) We use things eve= ry day that were science fantasy (not just fiction) when I was in high scho= ol. I'm pretty confident that by the time my RV-7 rotary flies, I'll be abl= e to put an affordable electric motor & batteries on at least an ultralite = style a/c as an 'after supper' toy.=20 =20 Charlie =20 ------=_Part_12004774_501529935.1449163361233 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

You= can do that already, Charlie. :-)

But = I think this design is a little to gimmicky. 390lbs useful load is me= and a child. And where are we seriously going to go within 200miles?= A serious effort would drop the cost, complexity, weight, drag and a= irflow disruption of eight of those motors to produce a decent electric pla= ne. Then I suspect you could get 3-500 miles with a 450lb load (Me, m= y girl, and her bikini.) (On second thought, no need to make allowanc= es for the bikini.)

<= span>

On Thursday, December 3, 2015 11:= 56 AM, Charlie England <flyrotary@lancaironline.net> wrote:

=20 =20 =20

On 12/3/2015 2:26 AM, steve= Izett wrote:

=20
The Future may be very interesting and a= t current rate of change in battery tech, may be closer perhaps than we envisage!

Though some of you might be interested i= f you haven=E2=80=99t seen this proposal yet.

Cheers

Steve Izett
http://www.jobyaviation.com/S2/

I agree; the future is closer than we tend to think. :-) We use things every day that were science fantasy (not just fiction) when I was in high school. I'm pretty confident that by the time my RV-7 rotary flies, I'll be able to put an affordable electric motor & batteries on at least an ultralite style a/c as an 'after supper' toy.

Charlie

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