X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mtiwmhc13.worldnet.att.net ([204.127.131.117] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 913497 for flyrotary@lancaironline.net; Sun, 24 Apr 2005 21:45:47 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.117; envelope-from=keltro@att.net Received: from 204.127.135.60 ([204.127.135.60]) by worldnet.att.net (mtiwmhc13) with SMTP id <20050425014526113002lbjqe>; Mon, 25 Apr 2005 01:45:26 +0000 Received: from [209.247.222.82] by 204.127.135.60; Mon, 25 Apr 2005 01:45:25 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Bernie building time 1.8 hours today Date: Mon, 25 Apr 2005 01:45:25 +0000 Message-Id: <042520050145.18077.426C4BB500041A790000469D2160383116019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 14 2005) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_18077_1114393525_0" --NextPart_Webmail_9m3u9jl4l_18077_1114393525_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Chuck, In this situation for those with the EC1 (I have both a EC1 and EC2) with the fixed injector stageing of 16"MP one could switch the secondary injectors off with the disable switch when forced to operate at the stageing point....FWIW -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from "Chuck Dunlap" : -------------- > Hi Bernie > What is happening is that the ECU is switching between running only the > primary injectors below 16"MP and both sets of injectors above 16". Any > difference in the flow rates of the injectors can cause a lean condition > which usually can be covered up by running up the mixture a little when > operating in this area. Perhaps your injectors are not well matched? > I had this happen whenever I throttled back to descend when I had > Tracy's EC version 1. I have since changed to version 2 and have not had > the problem, with the version 2 you can program the switchover point > lower, try about 13". The version 1 was fixed at 16" > > Yep I agree, flying up high feels like its in its own element, like it > will run forever its so smooth... > > Chuck Dunlap > > > > > -----Original Message----- > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On > Behalf Of jbker@juno.com > Sent: Thursday, April 21, 2005 5:20 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] Bernie building time 1.8 hours today > > > > Tried to complete Van's AD for tipup 7's and 9's this AM, got frustrated > and went to fly after lunch. South Westbound holding my 50 mile radius > for River Ranch( my home field per the limitation) and 10.5k. Followed > the circle on around to Lakeland, then climbed to 11.5 eastbound just > north of R2901 then south between the build up that looked like they > went above 15k. When I ducked down between the clouds to get under, > actually got into a light shower (no harm to Ed's prop :>)). Seems like > the combination 9 and rotary just like it better the higher I go. Will > have to borrow and O2 bottle one of these days. > > The only thing that made me uncomfortable today was that when I throttle > back to stay out of the red arc on the A/S to about 15 manifold pressue, > the engine goes into the unstable up and down hunting that no mixture > ratio seems to fix. Any ideas?? > > Bernie, 13+ hours now. --NextPart_Webmail_9m3u9jl4l_18077_1114393525_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Chuck,
    In this situation for those with the EC1 (I have both a EC1 and EC2) with the
fixed injector stageing of 16"MP one could switch the secondary injectors off
with the disable switch when forced to operate at the stageing point....FWIW
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2




-------------- Original message from "Chuck Dunlap" <crayd@cableone.net>: --------------


> Hi Bernie
> What is happening is that the ECU is switching between running only the
> primary injectors below 16"MP and both sets of injectors above 16". Any
> difference in the flow rates of the injectors can cause a lean condition
> which usually can be covered up by running up the mixture a little when
> operating in this area. Perhaps your injectors are not well matched?
> I had this happen whenever I throttled back to descend when I had
> Tracy's EC version 1. I have since changed to version 2 and have not had
> the problem, with the version 2 you can program the switchover point
> lower, try about 13". The version 1 was fixed at 16"
>
> Yep I agree, flying up high feels like its in its own element, like it
> will run forever its so smooth...
>
> Chuck Dunlap
>
>
>
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> Behalf Of jbker@juno.com
> Sent: Thursday, April 21, 2005 5:20 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Bernie building time 1.8 hours today
>
>
>
> Tried to complete Van's AD for tipup 7's and 9's this AM, got frustrated
> and went to fly after lunch. South Westbound holding my 50 mile radius
> for River Ranch( my home field per the limitation) and 10.5k. Followed
> the circle on around to Lakeland, then climbed to 11.5 eastbound just
> north of R2901 then south between the build up that looked like they
> went above 15k. When I ducked down between the clouds to get under,
> actually got into a light shower (no harm to Ed's prop :>)). Seems like
> the combination 9 and rotary just like it better the higher I go. Will
> have to borrow and O2 bottle one of these days.
>
> The only thing that made me uncomfortable today was that when I throttle
> back to stay out of the red arc on the A/S to about 15 manifold pressue,
> the engine goes into the unstable up and down hunting that no mixture
> ratio seems to fix. Any ideas??
>
> Bernie, 13+ hours now.
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