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
> >
> > --
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