X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-wy0-f180.google.com ([74.125.82.180] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTPS id 5061569 for flyrotary@lancaironline.net; Sat, 23 Jul 2011 22:20:50 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.82.180; envelope-from=rwstracy@gmail.com Received: by wye20 with SMTP id 20so2293096wye.25 for ; Sat, 23 Jul 2011 19:20:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=Tp6YDZGZnA0Z1rkA8qXfMGAvhYGUSG6NdIQXmOKjCWI=; b=XggZwDMIgnxQzCPm4gqPg3oBih7PMSmqzHoQBMgCCAd6vH1RyAXuXA4wj3mkPwNZKk +MlZyg4NwWzesha78NhT9m7/6OC3v3GuKI7kzHEZvIlZ9kof3azL1v2JqVlWOiK6CG1m npFqEBwu4p4P9Bz+o7g4eIhl6HDEYj0lCLPNQ= MIME-Version: 1.0 Received: by 10.216.187.75 with SMTP id x53mr3102945wem.92.1311474012978; Sat, 23 Jul 2011 19:20:12 -0700 (PDT) Received: by 10.216.29.212 with HTTP; Sat, 23 Jul 2011 19:20:12 -0700 (PDT) In-Reply-To: References: Date: Sat, 23 Jul 2011 22:20:12 -0400 Message-ID: Subject: Re: [FlyRotary] Re: Flexplate Fix From: Tracy To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=001485f1d81eacfd0704a8c75656 --001485f1d81eacfd0704a8c75656 Content-Type: text/plain; charset=ISO-8859-1 "I am looking forward to a little more weight on the flywheel. I am hoping that it will further smooth out my idle. Dave Leonard" The heavier flywheel should help but there is more to it than that. I was contracted to provide ECUs for the Itec Maverick, a powered parachute / car. I recently learned a lot about idle requirements on engines without a propeller load when I visited their factory to work out tuning for the engine without a prop load (in ground mode). Been working on a new idle control strategy for the EC2/3 that I think will greatly improve the minimum idle speed and smoothness of the engine at low RPM. Because it wasn't really needed in the past, I did not have a separate idle strategy in the EC3. I'll report more when it's all worked out. BTW, this is the first flying car I've seen that kicks ass on the ground! Tracy On Sat, Jul 23, 2011 at 8:50 PM, David Leonard wrote: > I the the idea of the RX8 plate being thicker may be a mis-nomer. Someone > reported the 13B plate as 0.065, but I measure mine at 0.08. That is about > the same reported thickness as theRX8 plate. > > That being said, the renisis plate is shaped better (more conical), and > does not have the nasty lightning holes that exist in the 13B plate, so it > would still clearly be an improvement. If Tracy changed his damper plate a > little, it would be the easiest, lightest, and generally cheapest fix. > Given that the 13B plate has held up for a lot of hours in a lot of > aircraft, it may very well be sufficient. > > I am looking forward to a little more weight on the flywheel. I am hoping > that it will further smooth out my idle. > > Dave Leonard > > > On Sat, Jul 23, 2011 at 5:04 PM, Mark Steitle wrote: > >> Kelly, >> >> Its on hold waiting to hear how the flywheel fix works out. While heavier >> by a few pounds, I feel that it is the most durable of any of the solutions >> discussed to date. >> >> Also, I really liked the idea of Tracy coming up with a way to use the >> thicker RX-8 flexplate. Whatever we work out, for insurance reasons, it >> ought to be "blessed" by Tracy as the official RWS upgrade. >> >> Mark >> >> >> On Sat, Jul 23, 2011 at 6:52 PM, Kelly Troyer wrote: >> >>> Mark, >>> Been bugging Dave now how is your flexplate fix going ??........... >>> >>> Kelly Troyer >>> *"DYKE DELTA JD2" (Eventually)* >>> "13B ROTARY"_ Engine >>> "RWS"_RD1C/EC2/EM2 >>> "MISTRAL"_Backplate/Oil Manifold >>> "TURBONETICS"_TO4E50 Turbo >>> >> >> > > > -- > David Leonard > > Turbo Rotary RV-6 N4VY > http://N4VY.RotaryRoster.net > http://RotaryRoster.net > --001485f1d81eacfd0704a8c75656 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable "I am looking forward to a little more weight on the flywheel.=A0 I am= hoping that it will further smooth out my idle.

Dave Leonard&= quot;


The heavier flywheel should help but there is more to it t= han that.

I was contracted to provide ECUs for the Itec Maverick, a powered parac= hute / car. =A0
I recently learned a lot about idle requirements on eng= ines without a=20 propeller load when I visited their factory to work out tuning for the engi= ne without a prop load (in ground mode).
=A0 Been working on a new=20 idle control strategy for the EC2/3 that I think will greatly improve the= =20 minimum idle speed and smoothness of the engine at low RPM. =A0=A0Because i= t wasn't really needed in the past, I did not have a separate idle=20 strategy in the EC3.=A0 I'll report more when it's all worke= d out.

BTW, this is the first flying car I've seen that kicks as= s on the ground!=A0

Tracy


On = Sat, Jul 23, 2011 at 8:50 PM, David Leonard <wdleonard@gmail.com> wrote:
I the the idea of= the RX8 plate being thicker may be a mis-nomer.=A0 Someone reported the 13= B plate as 0.065, but I measure mine at 0.08.=A0 That is about the same rep= orted thickness as theRX8 plate.=A0

That being said, the renisis plate is shaped better (more conical), and= does not have the nasty lightning holes that exist in the 13B plate, so it= would still clearly be an improvement.=A0 If Tracy changed his damper plat= e a little, it would be the easiest, lightest, and generally cheapest fix.= =A0 Given that the 13B plate has held up for a lot of hours in a lot of air= craft, it may very well be sufficient.

I am looking forward to a little more weight on the flywheel.=A0 I am h= oping that it will further smooth out my idle.

Dave Leonard


On Sat, Jul 23,= 2011 at 5:04 PM, Mark Steitle <msteitle@gmail.com> wrote:<= br>
Kelly,=A0
Its on hold waiting to hear how the flywheel fix works out. =A0= While heavier by a few pounds, I feel that it is the most durable of any of= the solutions discussed to date. =A0

Also, I really liked the idea of Tracy coming up with a way = to use the thicker RX-8 flexplate. =A0Whatever we work out, for insurance r= easons, it ought to be "blessed" by Tracy as the official RWS upg= rade.

Mark =A0 =A0


On Sat, Jul 23, = 2011 at 6:52 PM, Kelly Troyer <keltro@att.net> wrote:
Ma= rk,
=A0 Been bugging Dave now how is your flexplate fix going ??....= .......
=A0
Kelly Troyer
"DYKE DELTA JD2" = (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
&quo= t;MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo




--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.n= et

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