X-Virus-Scanned: clean according to Sophos on Logan.com From: "Stephen Izett" Received: from mail-pa0-f48.google.com ([209.85.220.48] verified) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8389564 for flyrotary@lancaironline.net; Sun, 07 Feb 2016 23:23:47 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.48; envelope-from=steveize@gmail.com Received: by mail-pa0-f48.google.com with SMTP id yy13so67088629pab.3 for ; Sun, 07 Feb 2016 20:23:46 -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=MiUxH4MTq5A4reKKkIXlo3MyHloMK8TQdg4WmMkPBNo=; b=yeF66e419Y4IpIjMsaTWTOTxbQIFzObvFhIk9jXJLHv9tZRYXbAzneKF9Tj1kTRVLP dLr5lC7MFu3+/m3S8lTrEDYi7CNQUFQLiEnoum6tl5gVAyCzJG1gY1T9OEPKufVbSJFu MhsMOmsbMUKBPhIE7XgFCkjXf10WlZcD1ryaOXMIVO/H9wYDDhsnVTfYJtqT8cqEWVhb VScsqSE03lc1MxuNoi+uTS3VzddFTLpbJgslPaQ9daDQpyVVOLm9qP0auqLEtxwixfpK /vcZ3Rs1kr1p0WEArzK/wc2/SjwxTCZJ20UuKuraczcTiWk+WJobpv3LK3JqGvIVAC8O UHtw== 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=MiUxH4MTq5A4reKKkIXlo3MyHloMK8TQdg4WmMkPBNo=; b=UyD0SU/Bp7uSs9FkJv24HHhyiAqpBU8L+UyQjHH47vg2QwOWqSITAZDazIpG/pEGHX CtBtV2MMk6armomEnEJHSwRQ0fcJ6EOlZodJCqJLEi1S6PtKaellH9JTeH+bbMQkKbY/ GSsEAPHTNwsimnnROSEbEhYmQ8c1/wakm3Hy/aJ7vs1sWi1pzoSmZVthAf0VuJeuGzfg VSKyPvytOUOEchxv+yod7TddTqSL0t+9IWAVpwv4vu3mXOqdgjoQCFxgoZYMVQqzxcOK uHzUQggWy1bAiayQdfFBRtyqM7DkRElr2D2UlcoaTAzOku98GggUpyGOAHzuju8vYkAp E5YQ== X-Gm-Message-State: AG10YOTlidbS0HOuaddc0OnIf0TK15bqzrMpueCdcmgWCgJYSFJzysQNnDXourzQYGJrRA== X-Received: by 10.66.145.162 with SMTP id sv2mr39413220pab.152.1454905407828; Sun, 07 Feb 2016 20:23:27 -0800 (PST) Return-Path: Received: from [192.168.0.13] ([58.108.8.220]) by smtp.gmail.com with ESMTPSA id i23sm39456632pfj.68.2016.02.07.20.23.24 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 07 Feb 2016 20:23:26 -0800 (PST) X-Google-Original-From: Stephen Izett Content-Type: multipart/alternative; boundary="Apple-Mail=_D0F1D5A0-D846-414D-B872-89E4D250D415" Message-Id: Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) Subject: Re: [FlyRotary] Re: [Flyrotary] Re: Testing Date: Mon, 8 Feb 2016 12:23:20 +0800 References: To: Rotary motors in aircraft In-Reply-To: X-Mailer: Apple Mail (2.3112) --Apple-Mail=_D0F1D5A0-D846-414D-B872-89E4D250D415 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Charlie I bought the Prop second hand and the company has now been sold. The new company who took over Aerotek is now producing props and hubs is = SprintAero http://www.sprintaero.com Cheers Steve Izett > On 8 Feb 2016, at 11:48 AM, Charlie England = wrote: >=20 > I'd love to hear more about the prop. Google couldn't seem to help me = when I searched for it; is there a web site showing the specs? >=20 > Charlie >=20 >=20 > On 2/7/2016 5:42 PM, Stephen Izett wrote: >> 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 >>=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. >>=20 >> Steve >>=20 >>=20 >>=20 >>=20 >>> 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=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.=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=99= s (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 >>=20 >=20 --Apple-Mail=_D0F1D5A0-D846-414D-B872-89E4D250D415 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi Charlie
I bought the Prop second hand and = the company has now been sold.
The new company who = took over Aerotek is now producing props and hubs is SprintAero http://www.sprintaero.com

Cheers

Steve Izett
On = 8 Feb 2016, at 11:48 AM, Charlie England <flyrotary@lancaironline.net> wrote:

=20 =20
I'd love to hear more about the prop. Google couldn't seem to help me when I searched for it; is there a web site showing the specs?

Charlie


On 2/7/2016 5:42 PM, Stephen Izett wrote:
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



= --Apple-Mail=_D0F1D5A0-D846-414D-B872-89E4D250D415--