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Thanks guys.
Steve
> On 25 Oct 2020, at 12:55 am, Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:
>
> I purchased the MT prop & drive from the estate of Mark S. I haven't picked it up yet, but it's supposed to have a 14" or 15" spinner, and my cowl is set up for a 13". If I can't fit Van's standard 13" spinner to the MT, I'll likely do as Bobby suggests, and make a 'cuff' for the nose of the cowl to match the spinner.
>
> Charlie
>
> On Sat, Oct 24, 2020 at 10:35 AM Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:
> From Bobby:
>
>
> Still can’t post.
>
> Sent from my iPad
>
> Begin forwarded message:
>
>> From: Bobby Hughes <BHughes@qnsinc.net>
>> Date: October 24, 2020 at 9:53:07 AM CDT
>> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
>> Subject: Re: [FlyRotary] Re: RD1-C flange type and bolt size
>>
>>
>> Steve,
>>
>> If the cowl spacing needs to be adjusted it might be less expensive to modify the cowling.
>>
>> Bobby
>>
>> Get Outlook for iOS
>> From: Rotary motors in aircraft <flyrotary@lancaironline.net> on behalf of Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net>
>> Sent: Friday, October 23, 2020 6:17:27 PM
>> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
>> Subject: [FlyRotary] Re: RD1-C flange type and bolt size
>>
>> Thanks guys. Appreciated.
>>
>> As far as the MT I’m looking at, I’ll need to reduce the spinner diameter from 13 inch to 12 inch. Id this likely to present problems or substantive cost?
>>
>> Steve
>>
>> > On 24 Oct 2020, at 12:47 am, Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:
>> >
>> > From Bobby:
>> >
>> > Deployed a new exchange server this week and can’t post.
>> >
>> >
>> >
>> > Flange is SAE-2 And will need new bushings / drive lugs for an MT prop. I don’t 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 out 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’m 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 prop tip speed.
>> > When I ordered the RD1C all these years ago I didn’t 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’m considering a prop change and wanting to confirm the flange 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" 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 but I've never seen one.
>> > >
>> > > 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
>
>
> Virus-free. www.avast.com
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