X-Virus-Scanned: clean according to Sophos on Logan.com From: "Charlie England" Received: from mail-pf0-f178.google.com ([209.85.192.178] verified) by logan.com (CommuniGate Pro SMTP 6.2c1) with ESMTPS id 9582683 for flyrotary@lancaironline.net; Sat, 18 Mar 2017 08:47:12 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.192.178; envelope-from=ceengland7@gmail.com Received: by mail-pf0-f178.google.com with SMTP id o126so48623542pfb.3 for ; Sat, 18 Mar 2017 05:47:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=inU28fDdd8JNJ9i4SLP+iqv7/82azwyO7ZUjyb3MIko=; b=DlaQyqktU1ypWetCUN0nycw7vSoQ0g01OmsASo1o33+5cps0OFf900UdGmVE/qzuLV bFFHljI6clGQclWQ1I8Nj+Nt3sRo5jKcFu36Xsytb2NkaMctZSVhUaDQHQGUsTLNaCy2 W4I2BLIGdp54YvP4LRVcKn6yZVmOupdHLN9wow3pT2GZcJ8Do7n8xYmrA+pcUUDkA/DK vRbp1XvxOa+63UAWxjZaO/Ea8mfZHSSXzZ+6mBgOq4lpNATsumEKK23cCE66fZk0y2kQ ExvJbvWGGHm/RpHiI1oRja5HOTT4ar44ij+Pj+dFkh6Mg4PAvxbDE1r36qYtEoUsiKjI 5xtA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=inU28fDdd8JNJ9i4SLP+iqv7/82azwyO7ZUjyb3MIko=; b=c50A7T9l9HDI5RRTF1tBgsoIILVZC+FugA1uOFGapuaMY4Al2BiS0QXxudSnSQU48r TB6Tql66VyBU40UHvZvUMXOZWvvux5bpxo9C1jOYcDGxiUQ/hGcl93UVepDcA4xqxmeU Xadk4v33sz7vyXY4wq0JxSJ4wRIGmgr8qdiBbdavch1jUFtJ2g+eM3N2ez0gt5CugKWI IyG8/vi1TM5JgdcTWPXKMCI26eAkdvcrE+1K6lkT1xfmLd0dAcNt95aoihw3s5b8Mu34 JB5nvH+pHTDoNsu2yz54mZjLGBu4itmfty8SeunDUZocSkwwJ7PJk7pw7zMOtPhQ1Y9N IEEQ== X-Gm-Message-State: AFeK/H1CGwVyjpOugCGgXezeeso3as7rfWtTNVsZVrIJSjLs/0x6MV3rZW+arM5p5proqT70hFOAUWubXyiHLg== X-Received: by 10.84.230.129 with SMTP id e1mr26912148plk.66.1489841213518; Sat, 18 Mar 2017 05:46:53 -0700 (PDT) MIME-Version: 1.0 Received: by 10.100.128.83 with HTTP; Sat, 18 Mar 2017 05:46:53 -0700 (PDT) In-Reply-To: References: Date: Sat, 18 Mar 2017 07:46:53 -0500 Message-ID: Subject: Re: [FlyRotary] New Mazda Re-drive on the Horizon To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=94eb2c11acc64dbb8b054b00b063 --94eb2c11acc64dbb8b054b00b063 Content-Type: text/plain; charset=UTF-8 I didn't stay at a Holiday Inn last night, but this Due to the differences between rotary and piston engines our standard clutch mechanism will be changed to a dampening drive plate. This takes advantage of the rotating mass of the gearbox and propeller to reduce the weight of the flywheel while preventing damaging harmonics. This also saves a lot of weight several different ways and makes the whole package more compact. doesn't give me that warm & fuzzy feeling about the engineering. On Thu, Mar 16, 2017 at 5:07 PM, Kelly Troyer wrote: > > Rotary Group, > This from Stuart Davis of "Auto PSRUs"............Perhaps of interest > to those still looking for a > Mazda Rotary re-drive........... > > Kelly Troyer > > > stuart@autopsrus.com > To > > Today at 11:31 AM > Kelly, > > Sorry to hear that you won't be at Sun N Fun. I do understand that you > would like more info, but I will have to provide what I can now and the > rest later as I have already started packing the trailer for Sun N Fun. > > The 200Z gearbox uses 2 sets of interchangeable gears allowing me to > customize the gear ratio from 1:1 all the way up to 3.54:1, so getting a > gear ratio that will allow the 13B the rpms needed to generate good > power and keep the propeller below 2700 rpm is the easy part. All of the > same features will be retained in the 200Z for lubrication and easily > supporting hydraulic constant speed propellers. The propeller shaft > rotates with the standard propeller rotation so more expensive pusher > propellers are not required. > > Pictures will be taken as Sun N Fun where Ed Kelepeis will provide his > Mazda Renesis engine to display everything on. Ed has also finished his > new fuel injection manifold to display as well. This is when I will get > all of my pictures to share with everyone. I should be able to send > those out during Sun N Fun. > > Due to the differences between rotary and piston engines our standard > clutch mechanism will be changed to a dampening drive plate. This takes > advantage of the rotating mass of the gearbox and propeller to reduce > the weight of the flywheel while preventing damaging harmonics. This > also saves a lot of weight several different ways and makes the whole > package more compact. > > The initial display will use an existing bell housing of cast aluminum > that is on loan to me. The worst thing about this bell housing is the > starter is in the worst location possible for using it with the 200Z > gearbox (MURPHY!). I have been able to extract all the critical > engineering data from this bell housing to design a stronger and lighter > CNC bell housing incorporating several other features that will reduce > part count, interface complexities, costs, and puts the starter where it > needs to go. > > I have also located the sources for converting carbureted 13Bs to fuel > injection, a good ECU that controls the fuel and ignition, and a > normalizing turbo charger system that automatically prevents accidental > over boosting. The sea level boost is a mild 2psi and should maintain > sea level power to 16,000 ft. > > That's about all the info I can provide right now. I'm sorry if this > seems more like a teaser than all the info you were looking for, but > being in the early development stages has its limits. If everything goes > well I might have a 13B prototype firewall forward package on display at > AirVenture. Certainly there will be a lot more information coming out > between now and then. > > Thanks for asking for more info. I will put out more announcements as > things develop. > > Thanks, > Stuart Davis > Auto PSRUs > 936-827-5126 <(936)%20827-5126> > --94eb2c11acc64dbb8b054b00b063 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I didn't stay at a Holiday Inn last night, but this
Due to the differences between rotary and piston engines our standard=C2= =A0
clutch mechanism will be changed to a dampening driv= e plate. This takes=C2=A0
advantage of the rotating mass= of the gearbox and propeller to reduce=C2=A0
the weight= of the flywheel while preventing damaging harmonics. This=C2=A0
also saves a lot of weight several different ways and makes the wh= ole=C2=A0
package more compact.
<= /div>

=


doesn't give me that warm & fuzz= y feeling about the engineering.=C2=A0

On Thu, Mar 16, 2017 at 5:07 PM, Kelly Tro= yer <flyrotary@lancaironline.net> wrote:

Rotary Group,
=C2=A0 =C2=A0 This from Stuart Davis of &qu= ot;Auto PSRUs"............Perhaps of interest to those still looking f= or a=C2=A0
Mazda Rotary re-drive= ...........
=C2=A0


Today at 11:31=C2=A0AM
Kelly,

Sorry to hear that y= ou won't be at Sun N Fun. I do understand that you=C2=A0
w= ould like more info, but I will have to provide what I can now and the=C2= =A0
rest later as I have already started packing the trailer f= or Sun N Fun.

The 200Z gearbox uses 2 sets of in= terchangeable gears allowing me to=C2=A0
customize the gear ra= tio from 1:1 all the way up to 3.54:1, so getting a=C2=A0
gear= ratio that will allow the 13B the rpms needed to generate good=C2=A0
power and keep the propeller below 2700 rpm is the easy part. All o= f the=C2=A0
same features will be retained in the 200Z for lub= rication and easily=C2=A0
supporting hydraulic constant speed = propellers. The propeller shaft=C2=A0
rotates with the standar= d propeller rotation so more expensive pusher=C2=A0
propellers= are not required.

Pictures will be taken as Sun= N Fun where Ed Kelepeis will provide his=C2=A0
Mazda Renesis = engine to display everything on. Ed has also finished his=C2=A0
all of my pictures to share with everyone. I should be = able to send=C2=A0
those out during Sun N Fun.
Due to the differences between rotary and piston engines our st= andard=C2=A0
clutch mechanism will be changed to a dampening d= rive plate. This takes=C2=A0
advantage of the rotating mass of= the gearbox and propeller to reduce=C2=A0
the weight of the f= lywheel while preventing damaging harmonics. This=C2=A0
also s= aves a lot of weight several different ways and makes the whole=C2=A0
package more compact.

The initial displa= y will use an existing bell housing of cast aluminum=C2=A0
tha= t is on loan to me. The worst thing about this bell housing is the=C2=A0starter is in the worst location possible for using it with the = 200Z=C2=A0
gearbox (MURPHY!). I have been able to extract all = the critical=C2=A0
engineering data from this bell housing to = design a stronger and lighter=C2=A0
CNC bell housing incorpora= ting several other features that will reduce=C2=A0
part count,= interface complexities, costs, and puts the starter where it=C2=A0
needs to go.

I have also located the sou= rces for converting carbureted 13Bs to fuel=C2=A0
injection, a= good ECU that controls the fuel and ignition, and a=C2=A0
nor= malizing turbo charger system that automatically prevents accidental=C2=A0<= br id=3D"m_5486412910180573939gmail-yiv3081276600yui_3_16_0_ym19_1_14896760= 00130_19467">over boosting. The sea level boost is a mild 2psi and should m= aintain=C2=A0
sea level power to 16,000 ft.

That's about all the info I can provide right now. I'm sor= ry if this=C2=A0
seems more like a teaser than all the info yo= u were looking for, but=C2=A0
being in the early development s= tages has its limits. If everything goes=C2=A0
well I might ha= ve a 13B prototype firewall forward package on display at=C2=A0
between now and then.

Thanks fo= r asking for more info. I will put out more announcements as=C2=A0
things develop.

Thanks,
Stuart= Davis
Auto PSRUs
936-827-5126

--94eb2c11acc64dbb8b054b00b063--