X-Virus-Scanned: clean according to Sophos on Logan.com From: "Stephen Izett" Received: from mail-pf0-f180.google.com ([209.85.192.180] verified) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8389341 for flyrotary@lancaironline.net; Sun, 07 Feb 2016 18:42:35 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.192.180; envelope-from=steveize@gmail.com Received: by mail-pf0-f180.google.com with SMTP id e127so4709057pfe.3 for ; Sun, 07 Feb 2016 15:42:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:content-type:message-id:mime-version:subject:date:references :to:in-reply-to; bh=/fZbOsOyrPsrrIz13jkJBAxlmHjtHMkjy6isQWUWgmU=; b=PHtaNC9EpXt/3SUmOTMc02CkdBJNCdzVJn4aO+uPvI8qEbzcIGuwldgAxq9H8vw18O n56ZQdxbTsrhTSeNhv578PViE6XgvxGeTmyHolor+IB7tfKvh1oUDCHEnPoJl4dy9sVk cFq71UHaEo5E95jKxJW+GwK5RM+xpZXNwYAfhzS0iN6JEr2SU8ElA6NoLjpkAh2XMqFG 6XQn0rG2d9Yu3hP9zsEiQ3W8klutvLxraAdEgOT0DVq4l3mMYvEpAyc1YszAtHXPH+NZ 31I/QTZvWcW/xyq5MnZ54Hw076qA/hotcixUjx1Fz3pnZmYEbXJMWMpWldOUpiUuuI6U dyGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:content-type:message-id:mime-version :subject:date:references:to:in-reply-to; bh=/fZbOsOyrPsrrIz13jkJBAxlmHjtHMkjy6isQWUWgmU=; b=ECEFfHZapujqzQvGkyVsckNhCZ6BRC6h2nfZT3cEjTqts5hVBGxpr6zrI77IjmDnQ2 trTYDQR0LZzmdMXX1UHBzR6jf7F0UBOifA8zSItTtRvywSmUSN0IkMr+OYsVTJI89Xr9 onUgGgl/roWJnSWZ+PGXa58TEop+zRQEHdghZktPhjVO/sKe9w9Qvb2wFbLwSzIHB1zH Ofu2NLA4NTCoClhVwwHY5Q4opauviqQ7bN34Jxd9pdqUAzFPyD9rH737NgkNFAYz+1Xa wC6MvFs7dH8yaLNt+jqCHsEDMFSlVZ6OmkatUtDNl1Hu+z5mYwIuNDgSq9vd82DvChf5 D9wQ== X-Gm-Message-State: AG10YOQSIbbPc7/wgdcgE42VCk4vDiz7g9kK+755e/f24ihx0qAi/lkch7gr3vVePPYGdQ== X-Received: by 10.98.16.69 with SMTP id y66mr38508927pfi.86.1454888537905; Sun, 07 Feb 2016 15:42:17 -0800 (PST) Return-Path: Received: from [10.1.1.5] (125-209-177-208.dyn.iinet.net.au. [125.209.177.208]) by smtp.gmail.com with ESMTPSA id ya4sm38703092pab.22.2016.02.07.15.42.14 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 07 Feb 2016 15:42:16 -0800 (PST) X-Google-Original-From: Stephen Izett Content-Type: multipart/alternative; boundary="Apple-Mail=_FAD40B5F-B94E-428F-B23A-5CD1CE354E1E" Message-Id: <93CB2D32-5A55-427C-AC3D-745EFBBB5D28@icloud.com> Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) Subject: Re: [FlyRotary] Re: [Flyrotary] Re: Testing Date: Mon, 8 Feb 2016 07:42:10 +0800 References: To: Rotary motors in aircraft In-Reply-To: X-Mailer: Apple Mail (2.3112) --Apple-Mail=_FAD40B5F-B94E-428F-B23A-5CD1CE354E1E Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Bobby At this stage the prop is not constant speed, just adjustable. So I could do I similar thing. Choose an Rpm. Why was the 2100 RPM at the prop chosen? Did you determine this to = provide=20 Our EM3 RPM reading issue appears to be related to inj #1 signal as the = reading goes intermittent and low (from memory ~ 800 RPM) and the = Skyview suffering the same. Steve > On 8 Feb 2016, at 3:14 AM, Bobby J. Hughes = wrote: >=20 > Steve, > Does your prop have a constant speed controller or is it strictly = manual operated? One or possibly two folks flying MT electric constant = speed controllers have reported an rpm difference between the selected = prop rpm and the actual engine rpm. Mine is very close. > =20 > Has anyone else had the EM3 read rpm incorrectly at high RPM?- My EM3 = screen sometimes shows the correct rpm and then NOP and alternates every = second or so. Reducing rpm seems to correct the issue. I suspect it=E2=80=99= s noise on the serial circuit. I plan to replace the serial wiring with = shield wire next time I have the panel out. My AFS EM show correct rpm = at all times and it reads the same injector pulse.=20 > =20 > One other thought regarding tuning for 7500 rpm. Initially I had a lot = of trouble tuning with the constant speed electric prop. Tracy recommend = I run up full power, adjust the prop for 2100 rpm, lock it in manual = mode and tune at this condition. This made tuning easier since I = wasn=E2=80=99t chasing the changing prop loads. If your prop controller = is manual only then you may not encounter the same difficulties.=20 > =20 > =20 > Bobby > =20 > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net = ]=20 > Sent: Sunday, February 07, 2016 9:58 AM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Testing > =20 > Hi Bobby > It's an Electric 3 blade Aerotek from New Zealand. > Steve > =20 > =20 > =20 > =20 > On 7 Feb 2016, at 10:31 PM, Bobby J. Hughes = > = wrote: > =20 > Steve, > =20 > What prop do you have?=20 > =20 > Bobby > =20 > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net = ]=20 > Sent: Saturday, February 06, 2016 4:14 AM > To: Rotary motors in aircraft > Subject: [FlyRotary] Testing > =20 > Hi Guys > =20 > In order to extend ground testing and tuning of the engine in 35+C = (95+F) I rigged some water spray onto the water exchanger. > Water temps now stay below 150F even at high load, and to my surprise = Oil temps stayed below 180F (I thought I might have to spray water on = the Oil Exchanger but not required) > =20 > I reduced the pitch of the prop to allow a static rpm of approaching = 7500rpm and without much missing she spun up OK. > I feel like Im starting to get familiar with the EC2 now and between = MODE 2 and 3 and just manual mixture adjustments she runs from idle to = 7+K alright. > =20 > One observation is that at around 6-7K RPM both the Dynon Skyview as = well as the EM3 fail to read the RPM correctly. > Now they are both taking their sensing from Injector 1.=20 > The EC2 of course gets its trigger signal from the Renesis CAS=E2=80=99s= (main and backup) and there is a mod on the back of the EC2 board that = I took was conditioning of the CAS signals. > Has anyone else had the EM3 read rpm incorrectly at high RPM? > =20 > After balancing our prop, I=E2=80=99m hoping to begin playing with the = EC2=E2=80=99s closed loop mode, and then Timing with new BR10EIX plugs. > =20 > Thanks again Tracy for your gearbox and EC. > =20 > Cheers > Steve Izett --Apple-Mail=_FAD40B5F-B94E-428F-B23A-5CD1CE354E1E Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi Bobby
At this stage the prop is not = constant speed, just adjustable.
So I could do I = similar thing. Choose an Rpm.
Why was the 2100 RPM = at the prop chosen? Did you determine this to provide 

Our EM3 RPM reading = issue appears to be related to inj #1 signal as the reading goes = intermittent and low (from memory ~ 800 RPM) and the Skyview suffering = the same.

Steve




On 8 Feb 2016, at 3:14 AM, Bobby J. Hughes <flyrotary@lancaironline.net> wrote:

Steve,
Does your prop have a = constant speed controller or is it strictly manual operated? One or = possibly two folks flying MT electric constant speed controllers have = reported an rpm difference between the selected prop rpm and the actual = engine rpm. Mine is very close.
 
Has anyone else had the EM3 read rpm incorrectly at = high RPM?- My EM3 screen sometimes = shows the correct rpm and then NOP and alternates every second or so. = Reducing rpm seems to correct the issue. I suspect it=E2=80=99s noise on = the serial circuit. I plan to replace the serial wiring with shield wire = next time I have the panel out. My AFS EM show correct rpm at all times = and it reads the same injector pulse. 
 
One other thought = regarding tuning for 7500 rpm. Initially I had a lot of trouble tuning = with the constant speed electric prop. Tracy recommend I run up full = power,  adjust the prop for 2100 rpm, lock it in manual mode and = tune at this condition. This made tuning easier since I wasn=E2=80=99t = chasing the changing prop loads. If your prop controller is manual only = then you may not encounter the same difficulties. 
 
 
Bobby
 
From: Rotary = motors in aircraft [mailto:flyrotary@lancaironline.net] 
Sent: Sunday, February 07, 2016 = 9:58 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: Testing
 
Hi Bobby
It's an Electric  3 blade Aerotek = from New Zealand.
Steve
 
 
 
 
On 7 = Feb 2016, at 10:31 PM, Bobby J. Hughes <flyrotary@lancaironline.net> wrote:
 
Steve,
 
What prop do you = have? 
 
Bobby
 
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] 
Sent: Saturday, February 06, 2016 = 4:14 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] = Testing
 
Hi Guys
 
In order to extend ground testing and = tuning of the engine in 35+C (95+F) I rigged some water spray onto the = water exchanger.
Water = temps now stay below 150F even at high load, and to my surprise Oil = temps stayed below 180F (I thought I might have to spray water on the = Oil Exchanger but not required)
 
I reduced the pitch of the prop to allow = a static rpm of approaching 7500rpm and without much missing she spun up = OK.
I feel like Im = starting to get familiar with the EC2 now and between MODE 2 and 3 and = just manual mixture adjustments she runs from idle to 7+K alright.
 
One observation is that at around 6-7K = RPM both the Dynon Skyview as well as the EM3 fail to read the RPM = correctly.
Now they are both = taking their sensing from Injector 1. 
The EC2 of course gets its trigger signal = from the Renesis CAS=E2=80=99s (main and backup) and there is a mod on = the back of the EC2 board that I took was conditioning of the CAS = signals.
Has anyone else had = the EM3 read rpm incorrectly at high RPM?
 
After balancing our prop, I=E2=80=99m = hoping to begin playing with the EC2=E2=80=99s closed loop mode, = and then Timing with new BR10EIX plugs.
 
Thanks again Tracy for your gearbox and = EC.
 
Cheers
Steve = Izett
<= /blockquote>

= --Apple-Mail=_FAD40B5F-B94E-428F-B23A-5CD1CE354E1E--