X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "Charlie England ceengland7@gmail.com" Received: from mail-io1-f50.google.com ([209.85.166.50] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 869469 for flyrotary@lancaironline.net; Fri, 23 Oct 2020 12:51:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.166.50; envelope-from=ceengland7@gmail.com Received: by mail-io1-f50.google.com with SMTP id z17so2557568iog.11 for ; Fri, 23 Oct 2020 09:51:43 -0700 (PDT) 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=tdPYgkVeOJ8jdS0KiHYiopc7r3uv5g58GyVvs8XjzRk=; b=PzV2KXOnnAje26j98R75OBQPUHyeML4hrgLgIjz88ZwAug53uD6gIOqb8/54cVPp8l E9vtmTXSp5TuHOHVyEz4I5aHLdBSueTfbScYOpLZ40Yd+fj5HFhg1vDQwkD8T+fCfcio Ft3toJ3Nu+lJ1RbdQpmnB6P7MrATolHM2cRcUT79a8qKJwue2oj5q5hTbM37flX4HliI goP/aciXPO8eSzQBhXDydTfmswJYYSQGfcQVrauejp5U4fDjFNNMJykEg00XuhRnbdbl E+ybbABKtkLEddXXozIk+80qNXaTLZJJiQaZQV+moZUBGVm4/lOVMLw60ZnjnVNGOo/y gNNA== 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=tdPYgkVeOJ8jdS0KiHYiopc7r3uv5g58GyVvs8XjzRk=; b=Fwe4nOH+UiO1AqqQoUqUevyIju4CPS1jbIMeE+0es/0U8dZjwauiJmrKTdQ773lIIl juOJsnixqJKg/zJfb3SNa1lzAJIrpBVBpLJwBN+sCc1S3jfTEEuiKGd54ZNiWzlmuPzL mdJdc+c2KQdWc7qCqmJzwVQcsJmiPR5EfKWHCrH3Vo0ZVLwlkgD9VeLBl8lo9dey9+e1 9KMNcnOCud5gM/uNjPOFiFN+mKcEUqtDEHbOhR2p5l4gLbedZHEocX7gxaGPCxKD55s/ kMFDA58rr5sartnbeBQ/My6C91MzAm4ppkPnztsp510GrB0gRGE2Ar/5KBWLvnE6kxRs EgUA== X-Gm-Message-State: AOAM531+sNPGnJVNoXtXt2wJu0SLD6R0jqW9f/pl4EGK2LypM41+RnyT U6JLG3WV8JyU3pAEIG4Xe6hc4zvvA9UtBw+PfEmkG+rwt88= X-Google-Smtp-Source: ABdhPJxGmaz+MX8v7WqGYOPqIKkWpvExCdhsEWOlwnDCLosAz4J1jMTKRgMXP++yZEatli+HJhL4kccSAcGqPxRHc/c= X-Received: by 2002:a6b:c811:: with SMTP id y17mr2333395iof.67.1603471885183; Fri, 23 Oct 2020 09:51:25 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Fri, 23 Oct 2020 11:47:25 -0500 Message-ID: Subject: Re: [FlyRotary] Re: RD1-C flange type and bolt size To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="0000000000001fad5305b25964dd" --0000000000001fad5305b25964dd Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable From Bobby: Deployed a new exchange server this week and can=E2=80=99t post. Flange is SAE-2 And will need new bushings / drive lugs for an MT prop. I don=E2=80=99t remember how many of the bolts are drive lugs. Bobby On Fri, Oct 23, 2020 at 11:29 AM Charlie England ceengland7@gmail.com < flyrotary@lancaironline.net> wrote: > It would be a good idea to verify the bushing outside diameter for that > particular model, and also verify whether all 6 bushings can remain in > place. Some Hartzell constant speed props only have counterbores for 4 ou= t > of the 6 bushings. Perhaps Bobby can tell you whether the MT props do the > same thing. For an example, see this link: > http://mstewart.net/super8/propclock/index.htm > > Charlie > > On Fri, Oct 23, 2020 at 10:46 AM Stephen Izett stephen.izett@gmail.com < > flyrotary@lancaironline.net> wrote: > >> Thanks Charlie >> >> I=E2=80=99m interested in a MTV-7-C 183-51 and wondered if it would fit = the RD1-C >> flange. >> My main reason is to increase the diameter out to 72inch to get increase= d >> prop tip speed. >> When I ordered the RD1C all these years ago I didn=E2=80=99t understand = that >> Tracy only recommended the C version for larger props. >> >> The MT documentation suggests that a C version has SAE No. 2 mod. bolts >> 7/16"-20 UNF >> So sounds like you think it could fit with a change to the bushings. >> >> Thanks >> >> Steve >> >> >> > On 23 Oct 2020, at 11:33 pm, Charlie England ceengland7@gmail.com < >> flyrotary@lancaironline.net> wrote: >> > >> > On 10/23/2020 10:13 AM, Stephen Izett stephen.izett@gmail.com wrote: >> >> Hi Guys >> >> >> >> I=E2=80=99m considering a prop change and wanting to confirm the flan= ge type >> on the RD1-C >> >> Does anyone know the type of flange? and do most Lycoming 360 series >> engines have that same bolt pattern and flange dimension? >> >> >> >> Cheers >> >> >> >> Steve Izett >> >> Glasair SIISRG Renesis 4 port RD1-C >> >> >> > Tracy's flange in stock condition uses 3/8" dia bolts. The bushings >> (drive lugs) are 5/8" in diameter. >> > >> > Most Lyc 360s I'm aware of use 1/2" bolts, and the bushings are 3/4" i= n >> diameter. Some Lyc 320s use 7/16" bolts with the same 5/8" bushing >> diameter; there may be some 360s using 7/16" bolts but I've never seen o= ne. >> > >> > I know that Mark S and Bobby modified their hubs to the larger >> bushings/bolts, to fit their MT electric props. >> > >> > Bolt circle diameter is the same for all bolt sizes; 320s & 360s. >> > >> > 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 >> > --0000000000001fad5305b25964dd Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
From Bobby:

Deployed a new exchange server this week and can=E2= =80=99t post.

=C2=A0

Flange is SAE-2 And will need =C2=A0new bush= ings / drive lugs for an MT prop.=C2=A0 I don=E2=80=99t remember how many o= f the bolts are drive lugs.

=C2=A0

=C2=A0

Bobby



On Fri, Oct 23, 2020 at 11:29 AM Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:
=
It would be a good idea to verify the bushin= g outside diameter for that particular model, and also verify whether all 6= bushings can remain in place. Some Hartzell constant speed props only have= counterbores for 4 out of the 6 bushings. Perhaps Bobby can tell you wheth= er the MT props do the same thing. For an example, see this link:
http://mstewart.net/super8/propclock/index.htm=

Charlie

On Fri, Oct 23, 2020 at 10:46 AM Stephen Izett stephen.izett@gmai= l.com <flyrotary@lancaironline.net> wrote:
Thanks Charlie

I=E2=80=99m interested in a MTV-7-C 183-51 and wondered if it would fit the= RD1-C flange.
My main reason is to increase the diameter out to 72inch to get increased p= rop tip speed.
When I ordered the RD1C all these years ago I didn=E2=80=99t understand tha= t Tracy only recommended the C version for larger props.

The MT documentation suggests that a C version has SAE No. 2 mod. bolts 7/1= 6"-20 UNF
So sounds like you think it could fit with a change to the bushings.

Thanks

Steve


> On 23 Oct 2020, at 11:33 pm, Charlie England ceengland7@gmail.com <flyrotary@lancaironline= .net> wrote:
>
> On 10/23/2020 10:13 AM, Stephen Izett stephen.izett@gmail.com wrote:
>> Hi Guys
>>
>> I=E2=80=99m considering a prop change and wanting to confirm the f= lange type on the RD1-C
>> Does anyone know the type of flange? and do most Lycoming 360 seri= es engines have that same bolt pattern and flange dimension?
>>
>> Cheers
>>
>> Steve Izett
>> Glasair SIISRG Renesis 4 port RD1-C
>>
> Tracy's flange in stock condition uses 3/8" dia bolts. The bu= shings (drive lugs) are 5/8" in diameter.
>
> Most Lyc 360s I'm aware of use 1/2" bolts, and the bushings a= re 3/4" in diameter. Some Lyc 320s use 7/16" bolts with the same = 5/8" bushing diameter; there may be some 360s using 7/16" bolts b= ut I've never seen one.
>
> I know that Mark S and Bobby modified their hubs to the larger bushing= s/bolts, to fit their MT electric props.
>
> Bolt circle diameter is the same for all bolt sizes; 320s & 360s.<= br> >
> Charlie
>
> --
> This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus
>
>
> --
> Homepage:=C2=A0 http://www.flyrotary.com/
> Archive and UnSub:=C2=A0 =C2=A0http:/= /mail.lancaironline.net:81/lists/flyrotary/List.html


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