X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=UschDK4B c=1 sm=1 tr=0 a=LTUozxgYEiL4qA9qR4bt1A==:117 a=x7bEGLp0ZPQA:10 a=xXDCcK6TKBsA:10 a=JHtHm7312UAA:10 a=UKPAHat8AAAA:8 a=Ia-xEzejAAAA:8 a=CNHRt0UHAAAA:20 a=H4ye2Ax-F8UPV2qyBI8A:9 a=PdxvdMsC75QIa3Uw:21 a=u-RdorD3aAnWGNmu:21 a=QEXdDO2ut3YA:10 a=iWeFz3xerlO5jem6i28A:9 a=qazlJCJS8VEMOLPT:21 a=6Z_K1VMrEHtPWZL6:21 a=CE0-D5q7Db_PJVZa:21 a=Fc6xXSS-RxGHxrvp76Qp:22 a=Urk15JJjZg1Xo0ryW_k8:22 From: "Todd Bartrim bartrim@gmail.com" Received: from mail-ed1-f53.google.com ([209.85.208.53] verified) by logan.com (CommuniGate Pro SMTP 6.2.9) with ESMTPS id 11885660 for flyrotary@lancaironline.net; Fri, 16 Nov 2018 18:02:18 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.208.53; envelope-from=bartrim@gmail.com Received: by mail-ed1-f53.google.com with SMTP id f4so8216694edq.10 for ; Fri, 16 Nov 2018 15:02:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=Zbl8cJmRhOojUgrMgJ1G0Fow0JxWGHEugl0Qqaew8qY=; b=LNDNadsIuU3bk8QPHqhI1/a00i+fHD6sZ5xi9lYC4mou62ouhMFuYEscQfv4MxhSKc GEsVADskA1PWGvBRPJSKzVN6QMPrYVp3HOt4lDfaKpQyvKan5QSLGcvpuorAvfUDX2gG b3c5AcMs+uTN/AER6vRVAIVG7kLpi+zD6idkMLdsOTCneu+USLsMZY7qKVKtOCxBrwcn D5x0yBNwg3+t3GPadfQgnLWhol7yucvs12g9VwpW5QWud0ZFphJlZ2nUNpimhD+16cVK 0C9dlRrp6vbkEH8kSaJogUS715gIwOSExdl4LicCAvNarzDY2rTtMBvdbZw/OMxa7EAA kt+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=Zbl8cJmRhOojUgrMgJ1G0Fow0JxWGHEugl0Qqaew8qY=; b=NBXXj9qHEB674aVUKKy8m0sQ0zCA+L4LYLk8r08OrfDTfFcvXeDcusmrAeflN/gBSm Qc7CyFhWxxDwnD4JzZqqA52MuNPiVZTuadEuXZ9yiiXVqvSh75HjnQDSQg7CFcP91kMz 8rAkBdUE31VPpcci+HXl3reA2aTj7oTohy9XFL9DUMJVpkQoH6VLtUMm/Ai+j90R0YoU 7KFiXO1JqFzpPoxkArR7pwCWUXZ1MiUl5mVEzAFj+fjYqHR14C0esCUTpojsoYQYRrBl ZQ1PIomkJt9IWokzRbb2Q80kH4YfDKp6z/xjJtdKT266DV9CzMmJfLsstZgHQm6IwBYK SUoA== X-Gm-Message-State: AGRZ1gLqxXudpRP8vcMKEuXGO1hEHCUylRuKiESa3E6wXh67RL5j1VUC aHD9bmHFFJdPBFTkLf0mWgrAre/O3Ss6hTRqIH7v X-Google-Smtp-Source: AJdET5e3UOkCURP7jsrSBKpWcvHY6mPkSRtBdPcgX0ek49spcUyNJiv/dsMeiISKMu9UWSWLP80OsBPSo16VSQ+sUow= X-Received: by 2002:a50:a974:: with SMTP id m49-v6mr11528333edc.169.1542409320202; Fri, 16 Nov 2018 15:02:00 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Fri, 16 Nov 2018 15:01:47 -0800 Message-ID: Subject: Re: [FlyRotary] Re: Rough running Rotary? To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000a10588057ad0271b" --000000000000a10588057ad0271b Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Nice. I've gotta try that. Todd On Fri, Nov 16, 2018, 10:07 Bobby J. Hughes bhughes@qnsi.net, < flyrotary@lancaironline.net> wrote: > Steve, > > > > Actually I was joking. I was amazed how little vibration the airframe had > so I shot a video of the water bottle. I will have a look at VibSensor. I= t > will be interesting to see the results. > > > > Bobby > > > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] > *Sent:* Friday, November 16, 2018 11:05 AM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: Rough running Rotary? > > > > There is a free app called VibSensor that runs on both android and > I-phone/pad platforms. Although not a research quality system, running t= he > app and holding the device firmly against a surface of interest will give > objective results. This may give a basis for useful comparisons for the > terminally curious. > > In my case, dynamically balancing the MT prop and the flex plate-damper > combination as separate units made a noticeable difference in the system > vibration signature. > > Steve Boese > > > On Nov 16, 2018, at 8:25 AM, Bobby J. Hughes bhughes@qnsi.net < > flyrotary@lancaironline.net> wrote: > > =E2=97=86 This message was sent from a non-UWYO address. Please exercise = caution > when clicking links or opening attachments from external sources. > > > > This may waste 18 seconds of your life! > > > > > > > > https://www.dropbox.com/s/91bc9m56x4boktl/Smooooth.MOV?dl=3D0 > > > > Bobby > > --000000000000a10588057ad0271b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Nice.=C2=A0 I've gotta try that.=C2=A0

Todd=C2=A0
On Fri, Nov 16, 2018, 10:0= 7 Bobby J. Hughes bhughes@qnsi.net,= <flyrotary@lancaironline= .net> wrote:

Steve,

= =C2=A0

Actually I was joking. I was amazed how little vibration the airframe= had so I shot a video of the water bottle. I will have a look at VibSensor= . It will be interesting to see the results.

=C2=A0<= /p>

Bobby=

=C2= =A0

Fr= om: Rotary motors in aircraft [mailto:flyrotary@lancaironline.= net]
Sent: Friday, November 16, 2018 11:05 AM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re: Rough running = Rotary?

=C2=A0

There is a free app called VibSensor that runs on both android and I-= phone/pad platforms.=C2=A0 Although not a research quality system, running = the app and holding the device firmly against a surface of interest will gi= ve objective results.=C2=A0 This may give a basis for useful comparisons fo= r the terminally curious.

In my case, dynamically ba= lancing the MT prop and the flex plate-damper combination as separate units= made a noticeable difference in the system vibration signature.

Ste= ve Boese=C2=A0


On Nov 16, 2018, at 8:25 AM, Bobby J. Hughes bhughes@qnsi.net <= flyrotary@= lancaironline.net> wrote:

=E2= =97=86 This message was sent from a non-UWYO address. Please exercis= e caution when clicking links or opening attachments from external sources.=

=C2= =A0

=C2=A0This may waste 18 se= conds of your life!

=C2=A0<= u>

=C2=A0

=C2=A0

https:= //www.dropbox.com/s/91bc9m56x4boktl/Smooooth.MOV?dl=3D0

=C2=A0

Bob= by

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