X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-iw0-f180.google.com ([209.85.214.180] verified) by logan.com (CommuniGate Pro SMTP 5.3.10) with ESMTP id 4587284 for flyrotary@lancaironline.net; Sun, 21 Nov 2010 16:13:27 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.214.180; envelope-from=wdleonard@gmail.com Received: by iwn37 with SMTP id 37so8077953iwn.25 for ; Sun, 21 Nov 2010 13:12:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=WqhRVbtBBdO3QWa8slE6PPBnwTAbjEJC5YxggEYTExU=; b=jP8c6i4gfPGL7Ey9fw2s84F4DgJz/o9Wx2ddcPZvcFqw69DKx1jVi9o28IJZmiuKG8 KvIHpuJ58CsiICwO8Jzm0j7Pdh4/fmX/CUr+Hrun+7W1AOTm5tJ1/WM6cG3DWhPsGVwl TlWxgqaugdnDsel+G5DA3fPohUe+uHZ3goxYA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=bfR/Z1S18+QHZpNdPSZ/oHDnZsVFgINKZCCdKPPdaWVwqoMEEHXNUDqbsF3eyAxXYG IBQQcHVC1IBct06aN02Mohp7hGg3EHFfdQSA+VBb6lEuLiXfYr8HmXXXuYbXho31TeAi +k0RcK/UVdu/L2Mf5JOKnQQYOceCGXsBN5AYc= MIME-Version: 1.0 Received: by 10.231.191.76 with SMTP id dl12mr5841927ibb.133.1290373968745; Sun, 21 Nov 2010 13:12:48 -0800 (PST) Received: by 10.231.31.195 with HTTP; Sun, 21 Nov 2010 13:12:48 -0800 (PST) Date: Sun, 21 Nov 2010 13:12:48 -0800 Message-ID: Subject: Trailing Coil Disable to Turbo too? Was: N20 From: David Leonard To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0016364d326308d6620495969aa1 --0016364d326308d6620495969aa1 Content-Type: text/plain; charset=ISO-8859-1 This is the first I am hearing about diabling the trailing coils for prevention of detonation. Should I be doing this when I am at high boost as well. Right now I seem to be able to run 45" without issue but may start pusing that a little. Can you guide me to the background? -- David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net On Sun, Nov 21, 2010 at 12:58 PM, Tracy wrote: > I think Ken is right that the EC3 would work fine with nitrous but to be on > the safe side you could set the B controller up with less ignition advance > and/or disable the trailing coils during takeoff with the nitros shot. > There is a coil disable input on the EC3 for coil testing that could be used > for that purpose. > > Tracy > > > On Sun, Nov 21, 2010 at 12:48 PM, Dustin Lobner wrote: > >> Ken, >> >> How easy would it be to add it after the fact? I'm building a Bearhawk, >> planning to put it on floats eventually, but not right away. The nitro >> would be assistance getting off the water, same as you. If I were to add >> the nitro when I add floats, how hard would that be? >> >> Dustin >> >> >> On Sun, Nov 21, 2010 at 11:19 AM, Ken Welter wrote: >> >>> >>> I have been running NOS with a 125 hp burst to get my Coot up on the >>> step and out of the water, without it I would just have a boat that could >>> not fly, I think it would work fine with Tracy's setup as the nitrous system >>> adds extra fuel to make up for the extra oxygen, use only the NOS brand >>> system as most other systems are junk. >>> Ken >>> >>> >>> >>> >>> On Nov 21, 2010, at 8:21 AM, Dustin Lobner wrote: >>> >>> Yeah, I'll put that idea to rest for awhile then. Thanks! >>> >>> Dustin >>> >>> On Sun, Nov 21, 2010 at 6:42 AM, Tracy wrote: >>> >>>> Nitrous systems that I've seen have a completely independent system for >>>> injecting additional fuel when the nitrous is on. The EC3 has no way of >>>> knowing anything about the NOX system so it does nothing different. >>>> >>>> Tracy >>>> >>>> >>>> On Sun, Nov 21, 2010 at 1:26 AM, Dustin Lobner wrote: >>>> >>>>> Some talk on HomeBuiltAirplanes.com forums brought up the question, has someone ever used nitrous oxide on a >>>>> rotary aircraft install? I'm pretty sure a supercub-type plane did that >>>>> awhile back (on a Lyco) for a super short takeoff roll using a fixed pitch >>>>> cruise prop (with a crapton of HP at takeoff). That's close to my >>>>> application in the end, probably with a N/A 20B, hence the interest. >>>>> >>>>> Tracy, how would your EC3 handle short bursts of nitro? Would that >>>>> totally throw the mixture curve, would I need to manual adjust while doing >>>>> it, or would it auto compensate somehow? >>>>> >>>>> Thanks! >>>>> >>>>> Dustin >>>>> Rockford, IL >>>>> >>>> >>>> >>> >>> >> > --0016364d326308d6620495969aa1 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
This is the first I am hearing about diabling the trailing coils for p= revention of detonation.=A0 Should I be doing this when I am at high boost = as well.=A0 Right now I seem to be able to run 45" without issue but m= ay start pusing that a little.=A0 Can you guide me to the background?
--
David Leonard

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

=A0
On Sun, Nov 21, 2010 at 12:58 PM, Tracy <tracy@rotaryaviat= ion.com> wrote:
I think Ken is right that the EC= 3 would work fine with nitrous but to be on the safe side you could set the= B controller up with less ignition advance and/or disable the trailing coi= ls during takeoff with the nitros shot.=A0=A0 There is a coil disable input= on the EC3 for coil testing that could be used for that purpose.

Tracy=20


On Sun, Nov 21, 2010 at 12:48 PM, Dustin Lobner = <dmlobner@gmail.com> wrote:
Ken,

How easy= would it be to add it after the fact?=A0 I'm building a Bearhawk, plan= ning to put it on floats eventually, but not right away.=A0 The nitro would= be assistance getting off the water, same as you.=A0 If I were to add the = nitro when I add floats, how hard would that be?

Dustin=20


On Sun, Nov 21, 2010 at 11:19 AM, Ken Welter <rotarycoot.ken@gmail.com> wrote:

=A0=A0I have been running NOS with a 125 hp burst to get my Coot up on= the step and out of the water, without it I would just have a boat that co= uld not fly, I think it would work fine with Tracy's setup as the nitro= us system adds extra fuel to make up for the extra oxygen, use only the NOS= brand system as most other systems are junk.
=A0Ken




On Nov 21, 2010, at 8:21 AM, Dustin Lobner wrote:

Yeah, I'll put that idea to rest for awhile t= hen.=A0 Thanks!

Dustin

On Sun, Nov 21, 2010 at 6:42 AM, Tracy <= tracy@rotaryaviation.com> wrote:
Nitrous systems that= I've seen have a completely independent system for injecting additiona= l fuel when the nitrous is on.=A0 The EC3 has no way of knowing anything ab= out the NOX system so it does nothing different.

Tracy=20


On Sun, Nov 21, 2010 at 1:26 AM, Dustin Lobner <= span dir=3D"ltr"><dmlobner@gmail.com> wrote:
Some talk on HomeBuiltAirplanes.co= m forums brought up the question, has someone ever used nitrous oxide o= n a rotary aircraft install?=A0 I'm pretty sure a supercub-type plane d= id that awhile back (on a Lyco) for a super short takeoff roll using a fixe= d pitch cruise prop (with a crapton of HP at takeoff).=A0 That's close = to my application in the end, probably with a N/A 20B, hence the interest.<= br>
Tracy, how would your EC3 handle short bursts of nitro?=A0 Would that t= otally throw the mixture curve, would I need to manual adjust while doing i= t, or would it auto compensate somehow?

Thanks!

Dustin
Roc= kford, IL



=





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