X-Virus-Scanned: clean according to Sophos on Logan.com From: "Stephen Izett" Received: from mail-pa0-f43.google.com ([209.85.220.43] verified) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8391687 for flyrotary@lancaironline.net; Mon, 08 Feb 2016 18:14:07 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.43; envelope-from=steveize@gmail.com Received: by mail-pa0-f43.google.com with SMTP id yy13so80774898pab.3 for ; Mon, 08 Feb 2016 15:14:06 -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=BExSahyeXiz/7ktCZn3TBhyabFoOLYtc7Z3u4xyK+g4=; b=qJ7QuoYj2+KeBrm0qX9lgxd1tSGH/QJjTa5aPMMIZ5tzIizKraRPrBoTjX+Eq330KO dlW/5gTK6OEKyPdjpR/ChOG+FatygjAgUHiepaG1AHc3KCJLhLbPjwjWUMcot9MxIX7m /bvM6Dz9EAuOObkDVoT/1XlXSRdy3If+paUhuE4iFKqs2xnjSFRZNqNmqMcExEuZYwC4 Kq63unhIuveLNiLSCQVZnQvzzvNqAIJp6lba6H87yucBfCO98J3T7jcq086ObnkWezHX Ic2GaNtINWKYkxX0/C0IBg0Jk06CnFDuQ+yndT/TroEfW2KOFC+TNx4PXIfne0OKJ8WQ TVDg== 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=BExSahyeXiz/7ktCZn3TBhyabFoOLYtc7Z3u4xyK+g4=; b=LBJuXfnLtAoSoG7X6qUSULPgIegLPZB1O/4Af26FY5grgJ2OQ0M+7z24O3GuwN55pZ 3rNYgg7c+ddI0+8DGZipO2ecUzRibGJU/rWYsOmHW39Grt+KvpEdTPAWdUa+ddtWksrk zf8KgWhhnjsU1kXr1jup3FwCap4gxEQMUE+1yA2ykAhPC0UPMKcBiiv9MTEQ2hWn2PeF K6l+CS6DmM1RWqGMs38yFtheLyjCFIFcyUd95q/Ka/a5lSJXW5+aS987vZOt52pbkeUL j+P/Wi69/73ld7utfuwCy+uL7ww+wfxVJY1880Sl+2yEq69W/gZoq9UnysvsE2LyO8w0 OBMw== X-Gm-Message-State: AG10YOTzNzg/Nq+JsMtI+Jp8dHOr6er89+ssK2ondbjyPmoKCBTx7Hp/IA+12ZicFUBBnA== X-Received: by 10.66.142.73 with SMTP id ru9mr45980146pab.121.1454973228417; Mon, 08 Feb 2016 15:13:48 -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 m5sm45678982pfi.84.2016.02.08.15.13.44 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 08 Feb 2016 15:13:46 -0800 (PST) X-Google-Original-From: Stephen Izett Content-Type: multipart/alternative; boundary="Apple-Mail=_9E7B4F59-04E9-4A56-8602-49C0D134DA2A" Message-Id: Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) Subject: Re: [FlyRotary] [Flyrotary] Re: Testing Date: Tue, 9 Feb 2016 07:13:39 +0800 References: To: Rotary motors in aircraft In-Reply-To: X-Mailer: Apple Mail (2.3112) --Apple-Mail=_9E7B4F59-04E9-4A56-8602-49C0D134DA2A Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Rich I think the history is that Bram Waters was behind Airmaster. He then = sold the company before working on a new design under the name Aerotek.=20= All Bram=E2=80=99s work at Aerotek was purchased by Phil of SprintAero. My blades are Aerotek in an Airmaster 506 Hub. Steve Izett > On 9 Feb 2016, at 12:29 AM, ARGOLDMAN = wrote: >=20 > An additional supplier (and one that has been around for at least 15 = years) is > Airmaster. They are always at OSH and predated most of the others = available. They are also located in New Zealand > =20 > I used one on my dragonfly, uses Warp drive blades (3) and I was very = happy with it. It is constant speed) > (range about 120HP) I had an adaptor made for the unit in that the = hub is designed for a > rotax but the adaptor made it mate with My Norton Rotary (midwest) = well. (I think it was an SAE 1 or 2) > It is an AP308. I have it for sale. if anybody is interested send me = an e-mail and I will give them the real skinney. > =20 > Rich > =20 > In a message dated 2/7/2016 8:26:37 P.M. Pacific Standard Time, = flyrotary@lancaironline.net writes: > 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 >=20 > Cheers >=20 > 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 >=20 > =3D --Apple-Mail=_9E7B4F59-04E9-4A56-8602-49C0D134DA2A Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi Rich
I think the history is that Bram = Waters was behind Airmaster. He then sold the company before working on = a new design under the name Aerotek. 
All = Bram=E2=80=99s work at Aerotek was purchased by Phil of = SprintAero.
My blades are Aerotek in an Airmaster = 506 Hub.
Steve Izett

On 9 Feb 2016, at 12:29 AM, ARGOLDMAN <flyrotary@lancaironline.net> wrote:

An additional supplier (and one that has been around for = at least 15 years)=20 is
Airmaster. They are always at OSH and predated most of = the others=20 available. They are also located in New Zealand
 
I used one on my dragonfly, uses Warp drive blades (3) = and I was very happy=20 with it. It is constant speed)
 (range about 120HP) I had an adaptor made for the = unit in that the=20 hub is designed for a
rotax but the adaptor made it mate with My Norton Rotary = (midwest) well. (I=20 think it was an SAE 1 or 2)
It is an AP308. I have it for sale. if anybody is = interested send me an=20 e-mail and I will give them the real skinney.
 
Rich
 
In a message dated 2/7/2016 8:26:37 P.M. Pacific = Standard Time,=20 flyrotary@lancaironline.net writes:
Hi=20 Charlie=20
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=20 SprintAero http://www.sprintaero.com

Cheers

Steve Izett
On 8 Feb 2016, at 11:48 AM, Charlie England <flyrotary@lancaironline.net>=20 wrote:

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

Charlie


On 2/7/2016 5:42 PM, Stephen Izett=20 wrote:
Hi Bobby=20
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=20 provide 

Our EM3 RPM reading issue appears to be related to = inj #1 signal as=20 the reading goes intermittent and low (from memory ~ 800 RPM) and = the=20 Skyview suffering the same.

Steve




On 8 Feb 2016, at 3:14 AM, Bobby J. Hughes = <flyrotary@lancaironline.net>=20 wrote:

Steve,
Does=20= your prop have a constant speed controller or is it strictly = manual=20 operated? One or possibly two folks flying MT electric constant = speed=20 controllers have reported an rpm difference between the selected = prop=20 rpm and the actual engine rpm. Mine is very=20 close.
 
Has=20 anyone else had the EM3 read rpm incorrectly at high RPM?- My EM3 screen sometimes shows the correct=20 rpm and then NOP and alternates every second or so. Reducing rpm = seems=20 to correct the issue. I suspect it=E2=80=99s noise on the serial = circuit. I plan=20 to replace the serial wiring with shield wire next time I have = the panel=20 out. My AFS EM show correct rpm at all times and it reads the = same=20 injector pulse. 
 
One=20 other thought regarding tuning for 7500 rpm. Initially I had a = lot of=20 trouble tuning with the constant speed electric prop. Tracy = recommend I=20 run up full power,  adjust the prop for 2100 rpm, lock it = in manual=20 mode and tune at this condition. This made tuning easier since I = wasn=E2=80=99t=20 chasing the changing prop loads. If your prop controller is = manual only=20 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=20 AM
To: Rotary=20 motors in aircraft
Subject: [FlyRotary] Re:=20 Testing
 
Hi=20 Bobby
It's=20 an Electric  3 blade Aerotek from New=20 Zealand.
Steve
 
 
 
 
On=20 7 Feb 2016, at 10:31 PM, Bobby J. Hughes <flyrotary@lancaironline.net>=20= wrote:
 
Steve,
 
What=20 prop do you have? 
 
Bobby
 
From: Rotary motors=20 in aircraft [mailto:flyrotary@lancaironline= .net] 
Sent: Saturday, February 06, 2016=20= 4:14 AM
To: Rotary motors in=20 aircraft
Subject: [FlyRotary]=20 Testing
 
Hi=20 Guys
 
In=20 order to extend ground testing and tuning of the engine in = 35+C (95+F)=20 I rigged some water spray onto the water=20 exchanger.
Water=20 temps now stay below 150F even at high load, and to my = surprise Oil=20 temps stayed below 180F (I thought I might have to spray water = on the=20 Oil Exchanger but not required)
 
I=20 reduced the pitch of the prop to allow a static rpm of = approaching=20 7500rpm and without much missing she spun up=20 OK.
I=20 feel like Im starting to get familiar with the EC2 now and = between=20 MODE 2 and 3 and just manual mixture adjustments she runs from = idle to=20 7+K alright.
 
One=20 observation is that at around 6-7K RPM both the Dynon Skyview = as well=20 as the EM3 fail to read the RPM=20 correctly.
Now=20 they are both taking their sensing from Injector=20 1. 
The=20 EC2 of course gets its trigger signal from the Renesis CAS=E2=80= =99s (main and=20 backup) and there is a mod on the back of the EC2 board that I = took=20 was conditioning of the CAS signals.
Has=20 anyone else had the EM3 read rpm incorrectly at high=20 RPM?
 
After=20 balancing our prop, I=E2=80=99m hoping to begin playing = with the EC2=E2=80=99s=20 closed loop mode, and then Timing with new BR10EIX=20 plugs.
 
Thanks again=20 Tracy for your gearbox and EC.
 
Cheers
Steve=20 = Izett
<= /blockquote>



=3D

= --Apple-Mail=_9E7B4F59-04E9-4A56-8602-49C0D134DA2A--