X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "David Leonard wdleonard@gmail.com" Received: from mail-ot1-f43.google.com ([209.85.210.43] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1014363 for flyrotary@lancaironline.net; Sun, 06 Dec 2020 11:53:11 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.43; envelope-from=wdleonard@gmail.com Received: by mail-ot1-f43.google.com with SMTP id b18so10350597ots.0 for ; Sun, 06 Dec 2020 08:53:11 -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=25tvjCr+MuGML6E25FCb1CnomaeHU9/eN//idrI3Etc=; b=kTa+q8INH9tuPrps07z2aQcFvN/9Z3x+FtLAYO/aU0nHVK5WV3u/xsqdjWpk0izLSi j8eAiCEmeV5ON4ifghUUrt3R0MTX2nsyi7XRhj48LIaq7T28WvyO/c6p0iMox4zAlE2p eqfS0g+kruptTunaUW7+4YLnpzD0NHnlxCa1a9H6XXAy0Yzp+4TagjYx2Xxg6j8HTpHj lTX5USn+ZJDGdIISthrypFArEhh3x0IqWIdB342K32vwOllRYONe+ifJXR8FsvWv5LTJ yzYjv3/jer9l3FI4Wi/vqDeNDAx/cUu7o6bLqMbY8Zm4bO70fFxAvQ6AwKwg6JYp/oQT U1rQ== 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=25tvjCr+MuGML6E25FCb1CnomaeHU9/eN//idrI3Etc=; b=seYsZrAWL4YaoCPQ2xzkTnZhmpJmP+qhc89jWEze1mpmclvzx8nPMVRh7TZkrpNCUS d2Y+/9XaQsO1Nj/7TwHPI0+t1dfv216O46qN2QYa7YoYFU7YJyQ8T+T075J5TdloPZ74 b32axN+Mk2QcHlo8CXIaLrt/HmFNKczCl2/iMc3XG5KM3aMLR7X5XodEfaTRbpy//TIe 9a8+E/mKwAEIOKqwFZAwFv7gdmKEX6RfLnyOUClc0baZrh8ZaBAQcf7BrWWfkKqFlQWB IwkEdb4MzgJTPMPcsk0MX8xM8M1UhYhVnWK0QMWBc1brZeNixyVy6QT8xOGha1zh28aT qClQ== X-Gm-Message-State: AOAM531RC1nxP0AokXQsbeDw7WcV6s6i08E1oSkhJki7xUdRvb/1GDIT bFvokZk6phaQ/jd/O+SHsyBgCob2gOLJTPTnDM2Igb3wdis= X-Google-Smtp-Source: ABdhPJw9or+WYUjtDUcdhbgcSWN1SYk5YMX6RRqRmqDvkDuP63O/ab34zwJSi01K+vUZm9364N9A06Tt1I4MPmVp14s= X-Received: by 2002:a9d:802:: with SMTP id 2mr7582205oty.62.1607273573616; Sun, 06 Dec 2020 08:52:53 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Sun, 6 Dec 2020 08:52:42 -0800 Message-ID: Subject: Re: [FlyRotary] Re: RD1-C damper To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000698e8c05b5ce8a9e" --000000000000698e8c05b5ce8a9e Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Steve, you are right. The Issue is cracking og the auto-tranny flex plate. Mine failed entirely. I highly recommend making the change sooner rather than later. Dave Leonard On Sun, Dec 6, 2020, 12:48 AM Stephen Izett stephen.izett@gmail.com < flyrotary@lancaironline.net> wrote: > Hi Charlie > > I thought people moved to the race flywheels because the flex plates were > cracking. > I hadn=E2=80=99t heard of the Engine/Drive/Prop needing a flywheel mass. > I found some info on the forum archive but nothing to draw it all togethe= r. > I=E2=80=99ll have a good look at the flexplate when I pull the drive and = check for > cracking, but unless I hear otherwise I plan to reuse the flex plate. > > Thanks > > Steve > > > > > > > > On 6 Dec 2020, at 8:58 am, Charlie England ceengland7@gmail.com < > flyrotary@lancaironline.net> wrote: > > > > On 12/5/2020 6:35 PM, Stephen Izett stephen.izett@gmail.com wrote: > >> Hi team > >> > >> Having completed phase #1 testing of the Glasair Super IIRG power by > Renesis and RD1-C redrive, I=E2=80=99re going to pull the redrive for its= 25 hourly > initial inspection. > >> > >> Tracy deleted the damper assembly from the last rendition of his desig= n > and I=E2=80=99m considering removing ours by creating a new adapter plate= from the > existing splined > >> part that is currently riveted to the damper and adding some longer > bolts and spacers. > >> > >> Has anyone heard anything further in regard to RD receives with the > damper removed? > >> Has Tracy given any further updatess? > >> All I have read was after initial tests some years ago. > >> > >> Cheers > >> > >> Steve. > > Best I remember is that you need either an aluminum or steel racing > flywheel, to get more mass on the engine side of the system. IIRC, it's > also limited to low mass (wood, etc) propellers. The ones he sold had a > different input shaft, but I think Dave Leonard modified his RD1-C & to u= se > a steel racing flywheel which was only slightly heavier than the aluminum > version. Search for Dave's posts, if he doesn't chime in. I've been > wondering if Guibo/Rototflex couplers could be a viable alternative to th= e > aluminum plate/rubber discs. Probably would weigh more, and definitely co= st > more. > > > > Charlie > > > > -- > > This email has been checked for viruses by Avast antivirus software. > > https://www.avast.com/antivirus > > > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > --000000000000698e8c05b5ce8a9e Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Steve, you are right.=C2=A0 The Issue is cracking og the = auto-tranny flex plate.=C2=A0 Mine failed entirely.=C2=A0 I highly recommen= d making the change sooner rather than later.

Dave Leonard

On Sun, Dec 6, 2020, 12:48 AM Stephen Ize= tt stephen.izett@gmail.com &= lt;flyrotary@lancaironline.n= et> wrote:
Hi Charlie

I thought people moved to the race flywheels because the flex plates were c= racking.
I hadn=E2=80=99t heard of the Engine/Drive/Prop needing a flywheel mass. I found some info on the forum archive but nothing to draw it all together.=
I=E2=80=99ll have a good look at the flexplate when I pull the drive and ch= eck for cracking, but unless I hear otherwise I plan to reuse the flex plat= e.

Thanks

Steve






> On 6 Dec 2020, at 8:58 am, Charlie England ceengland7@gmail.com = <flyrotary@lancaironline.net> wrote:
>
> On 12/5/2020 6:35 PM, Stephen Izett stephen.izett@gmail.com w= rote:
>> Hi team
>>
>> Having completed phase #1 testing of the Glasair Super IIRG power = by Renesis and RD1-C redrive, I=E2=80=99re going to pull the redrive for it= s 25 hourly initial inspection.
>>
>> Tracy deleted the damper assembly from the last rendition of his d= esign and I=E2=80=99m considering removing ours by creating a new adapter p= late from the existing splined
>> part that is currently riveted to the damper and adding some longe= r bolts and spacers.
>>
>> Has anyone heard anything further in regard to RD receives with th= e damper removed?
>> Has Tracy given any further updatess?
>> All I have read was after initial tests some years ago.
>>
>> Cheers
>>
>> Steve.
> Best I remember is that you need either an aluminum or steel racing fl= ywheel, to get more mass on the engine side of the system.=C2=A0 IIRC, it&#= 39;s also limited to low mass (wood, etc) propellers. The ones he sold had = a different input shaft, but I think Dave Leonard modified his RD1-C & = to use a steel racing flywheel which was only slightly heavier than the alu= minum version. Search for Dave's posts, if he doesn't chime in. I&#= 39;ve been wondering if Guibo/Rototflex couplers could be a viable alternat= ive to the aluminum plate/rubber discs. Probably would weigh more, and defi= nitely cost more.
>
> Charlie
>
> --
> This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus
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>
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