X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "Matt Boiteau mattboiteau@gmail.com" Received: from mail-lj1-f176.google.com ([209.85.208.176] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1014448 for flyrotary@lancaironline.net; Sun, 06 Dec 2020 12:30:35 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.208.176; envelope-from=mattboiteau@gmail.com Received: by mail-lj1-f176.google.com with SMTP id q8so12465128ljc.12 for ; Sun, 06 Dec 2020 09:30:35 -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=BEuwiqmyqloUfyWobfYeWXt68A05tO1easvlIV5DB3I=; b=Gv3abnG8EIxsgy3BpUkr9wuHR7FUVCrj5uxQqDwqHlPNCenJMkZh7aYmkkfNX36T3n 5LV4qfEl9+gV2j4S5+webwkrqqkDrzCV72io2Jix4aLD2pv6W6wKJ7p+8tdSPioJIF4j VsWpFy2j+CRpm+68SyLH1wQ99xnr4joNOhJJJdHS65kCsNV0Wfd9q2w43Icrj8vofukf LIV4iZ7w76vdl37JqQYZxi8wflWMlaIW6X2lRoILVWrvrvNR9IOwnMJI8B0MwslyFVP7 3xa5k8X8q+Q/+D5GXKxoQlpUCMO4Yhyvpq46M9NDod4qEcRr6Yovcvc6lKM8k7/EAzwd QIGA== 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=BEuwiqmyqloUfyWobfYeWXt68A05tO1easvlIV5DB3I=; b=BAfYrK6iRqho9Bqwxr2o/y4uYmXjiSTXSMVCItOHxRPfTB5VTAxwz7B3z/6mUpRUKi kVyfYtY2se7n4GD/bgrzHY7eiIcEm9KI0qkz7m45WnMW/tq2gf8hXm/gHoIw6A75fSVm tr0MpoOcfD8kNwWJ5kQ/4gViEhrjPsZPeNLgVwnxl0hE2V9AelLU1HIhnz0pbRM1TqCK uw/zhXr6X+25cbZVsISBGMtf5T+iQI+3V06gqBuwXEaiKhsf/JbDA2wn8UP6IakJNgWM rUSfxouk9p+h6UaDaLyY3Krk95c3EwcVm3WRr16Ac3j5DYdOkaLkYKCj6ShCAG9ovcw5 pjaA== X-Gm-Message-State: AOAM531hJrcU1b9prJd2n0W+/Z8x100TcQw8uW5F5RzTg6ZT0pES13n8 BpCK/6oKTNel2tmD3tC+15HJjCBehyPrKoEKMLfTgPuPizY= X-Google-Smtp-Source: ABdhPJzumz56tDVxkKA7ksByvXQLwfvtkcafPP1akS5jAfEpZ6kCpa+jGI0BlfZps1FQzy0VWCMjejek6y6WFSE+XDY= X-Received: by 2002:a2e:320c:: with SMTP id y12mr7853072ljy.362.1607275817240; Sun, 06 Dec 2020 09:30:17 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Sun, 6 Dec 2020 12:30:06 -0500 Message-ID: Subject: Re: [FlyRotary] Re: RD1-C damper To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000248dd605b5cf108b" --000000000000248dd605b5cf108b Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable That's why I like Neil's coupler instead. Doesn't use the flexplate to hold it together. Just need to sort out the rubber. - Matt Boiteau On Sun, Dec 6, 2020 at 3:48 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 > --000000000000248dd605b5cf108b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
That's why I like Neil's coupler instead. Doesn= 9;t use the flexplate to hold it together. Just need to sort out the rubber= .

- Mat= t Boiteau


On Sun, Dec 6, 2020 at 3:48 AM S= tephen Izett stephen.izett@gmail= .com <flyrotary@lanca= ironline.net> 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.n= et> 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 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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