X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=UschDK4B c=1 sm=1 tr=0 a=1uaG66P5D6DV9FJSSGzPyA==:117 a=9lSN37m379oECu5yH2MVbQ==:17 a=x7bEGLp0ZPQA:10 a=VqmtQeTB-p0A:10 a=4_-BN3WEXhEA:10 a=JHtHm7312UAA:10 a=pGLkceISAAAA:8 a=o2QoyYduAAAA:8 a=Ia-xEzejAAAA:8 a=hOpmn2quAAAA:8 a=on22okXAAAAA:8 a=7g1VtSJxAAAA:8 a=UalfFEl0qjuGiyfWCFwA:9 a=dHV4NUzXetmkeusq:21 a=HFKV47fGQlwcvWb4:21 a=QEXdDO2ut3YA:10 a=Qm3EUTm5eBUA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=ce0li55JexYiokE2bVMA:9 a=EgkbLknDSqN79BUm:21 a=j5OWeS3VbXhRiPQj:21 a=NsXR1BSYxBYsUxcf:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 a=uhGSWE4YubS47_sVCAo8:22 a=S50rnUa8yRbNnh2hyxzf:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=GyA-uvUxXSCciAkwuKQO:22 a=NPqpj5bUEVj9vR1HIonK:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Tracy Crook rwstracy@gmail.com" Received: from mail-yb1-f178.google.com ([209.85.219.178] verified) by logan.com (CommuniGate Pro SMTP 6.2.9) with ESMTPS id 11861536 for flyrotary@lancaironline.net; Sat, 10 Nov 2018 12:01:11 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.219.178; envelope-from=rwstracy@gmail.com Received: by mail-yb1-f178.google.com with SMTP id n140-v6so2363318yba.1 for ; Sat, 10 Nov 2018 09:01:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:mime-version:to:from:subject:date:importance:in-reply-to :references; bh=nkAAX03Nl1zZGwIn5ZI328BmDtM4EzDjr85PHqlRSjA=; b=VUsd3rY1U1CgZWQpBDz6c7uANZKXDyvEJSHhkZIJrwlnzBNTyeV6MY7s23hFa5fVjY a/UJZOdtVmXYg2iKniORNuw1MX9yOJo3ZYT0NcjthbU+KuX+v0kp6OaMFo76OY/sosY4 k+eO7HqUj5NHJztnrVTP735h1f35upMggyU7PXVyLk3lJB3E3EOqeoCUKrgEO4Zg+Rbd q7kBVcQneDy58E9mbzNsGm+XQq49RwIn2a0YYwz3N05XNfsAe790oOGy5jNO1OYL2Pcn bs6vWJ0PZ4ylO4z3BzbqILK1hOfspiPAD64SPkFKnhORkeORjDa5JUliT0/Lzilr8v3l ENww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:mime-version:to:from:subject:date :importance:in-reply-to:references; bh=nkAAX03Nl1zZGwIn5ZI328BmDtM4EzDjr85PHqlRSjA=; b=t0DKPZb5kRXDoLAjiqjxUz5WXpwD+BQ8ngNCXLhi2wQmPgqtt49kR/vqQMy95o+lZd dhK2zRf5gwS5Uqkra94oFqSr3H7CINIcXJGudgJIv2rgQJSkE93glyY+jGOwBmrs0hWI YQM0THbRTJByFZJE2XqV47fhgHBo+Ni4dPk1+7tj1awvybMerVUmSPrPiYrMWOP3EJxk DlrNXDinnvAmHLCXkze33CFjDcqhaqBMgI+PFcqEWzUy2dN2cdYdDVkU+Lg/Q0tLp1E6 GpmXUTDbh+f0ReUcUxLf49uZG9ub6Fzaogmw+mtFGxPCL570mvI8zb1N7R3CYprolbfH 65Fw== X-Gm-Message-State: AGRZ1gJd161IgREsqA4B+H0nuB28UAbHQllvG6tU7uRFnbKf3MAMqh1Z k8svI8OZqz+Q83wZr1009aLZtObx X-Google-Smtp-Source: AJdET5fx87xYOe47JKi52xl/a5AghJqcPHhlOansPvN+3qH8VsD9y9chIxb06sOUA5Raob41d5caDA== X-Received: by 2002:a25:9745:: with SMTP id h5-v6mr12672217ybo.167.1541869252987; Sat, 10 Nov 2018 09:00:52 -0800 (PST) Return-Path: Received: from ?IPv6:::ffff:192.168.254.69? (h44.164.213.151.dynamic.ip.windstream.net. [151.213.164.44]) by smtp.gmail.com with ESMTPSA id j131-v6sm2401948ywa.84.2018.11.10.09.00.51 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 10 Nov 2018 09:00:52 -0800 (PST) Message-ID: <5be70ec4.1c69fb81.43c10.a899@mx.google.com> MIME-Version: 1.0 To: Rotary motors in aircraft Subject: RE: [FlyRotary] Re: Flexplare Replacement Date: Sat, 10 Nov 2018 12:00:49 -0500 Importance: normal X-Priority: 3 In-Reply-To: References: Content-Type: multipart/alternative; boundary="_815F1007-9356-42D0-BBD3-F04567ECA6FD_" --_815F1007-9356-42D0-BBD3-F04567ECA6FD_ Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Nice work Neil. =20 I understand why the price has to be so high for such relatively simple par= ts. The work behind the scenes is enormous and has to be spread between so= few units. I may have missed this detail before. What kind of surface does the spline= d part have to insure grip on the rubber? Tracy Crook =20 Sent from Mail for Windows 10 From: Neil Unger 12348ung@gmail.com Sent: Friday, November 9, 2018 4:09 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Flexplare Replacement Joe, =C2=A0=C2=A0=C2=A0 Only mine which has survived to date without mishap.=C2= =A0 The testing I=20 did was to destroy a sample of various "cushion / flex material on the=20 bench.=C2=A0 This involved clamping a unit in the vice and then twisting th= e=20 inner with my son-in-law, who weighs 110 KG, on the end of a 6 foot=20 length of pipe.=C2=A0 In theory that was in excess of 600 ft pounds and the= =20 rotary produces 300 ft pounds. THen the testing in my glastar which was=20 ideal as I was fitting and tuning a new fuel tech ECU.=C2=A0 The backfiring= =20 and rough running certainly tried everything out. Neil. On 11/10/2018 6:22 AM, Joseph Berki jskmberki@windstream.net wrote: > Neil, > > Are there any cushion drives flying? > Any testing performed? > > Joe Berki > > -----Original Message----- > From: Rotary motors in aircraft > Sent: Wednesday, November 7, 2018 3:02 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Flexplare Replacement > > joe, > > Just unbolt the old flex drive, and bolt mine on. > > Neil Unger. > > > On 11/7/2018 9:10 PM, Joseph Berki jskmberki@windstream.net wrote: >> Neil, >> >> Are there any modifications to the RD-1C hardware using your solution? >> >> Joe Berki >> >> -----Original Message----- >> From: Rotary motors in aircraft >> Sent: Tuesday, November 6, 2018 8:02 PM >> To: Rotary motors in aircraft >> Subject: [FlyRotary] Re: Flexplare Replacement >> >> Marc, >> >> Attached photo is of the original mounted on my engin= e, The unit shown has urethane as the "flex" which lasted about 5 hours an= d the spacer is the original without excess material milled off for lightne= ss. Input shaft is Tracy's whereas mine is one piece and a lot dearer!! = Basically as shown the plate with the vulcanised drive block is bolted thro= ugh the spacer and flexplate onto the e shaft as shown and is lighter than = Tracy's but by how much I forget. Made specifically to retrofit all Tracy'= s reduction drives. >> >> Neil Unger. >> >> >> On 11/7/2018 10:12 AM, Marc Wiese cardmarc@charter.net wrote: >>> Neil, >>> Can I see a sketch of how it all fits together front to back? >>> Marc >>> >>> -----Original Message----- >>> From: Rotary motors in aircraft >>> Sent: Tuesday, November 06, 2018 3:28 PM >>> To: Rotary motors in aircraft >>> Subject: [FlyRotary] Re: Flexplare Replacement >>> >>> Joe, There is another way which is my cushion drive (attached) which w= ill cost approx $500 USD plus freight with the current exchange rate. Main = cost is the splined drive block so that it matches up with Tracy's splined = input shaft. The photo shows the 2 parts of the unit, spacer and splined c= ushion drive, which bolt direct onto the e shaft with the normal flexplate = in between. Uses the normal flexplate with no strain whatever on the flexp= late. Your money and your decision!! >>> >>> Neil Unger >>> >>> >>> On 11/7/2018 6:06 AM, Jeff Whaley jwhaley@datacast.com wrote: >>>> Hi Joe, I believe there are two ways you can go, though I don't have p= art numbers or exact details for you: >>>> 1) Tracy's Method: Use an aluminum flywheel directly, including the ce= nter spline coupling - this eliminates the damper plate and the need to dri= ll holes. The catch is the spline does not match the original RD1-C prop sh= aft spline. >>>> 2) Dave Leonard's Method: Use an aluminum flywheel, no center spline, = mount the damper plate, remove material from one face to adjust ring gear p= osition relative to starter. >>>> A quick search of the list should get you more info as it was discusse= d lately ... >>>> Jeff >>>> >>>> I have been looking at various flywheels for possible candidate replac= ement. >>>> >>>> I thought the aluminum units would provide the least amount of weight = gain. >>>> >>>> I noticed that there are a lot of holes in these units including the r= eplaceable friction area with many screw holes. >>>> >>>> I was under the impression that the holes in the flexplate promoted st= ress cracks. >>>> >>>> These flywheels however may have sufficient material to counteract the= stress potential. >>>> >>>> Can someone provide a brand or part number that is acceptable? >>>> >>>> I believe that the additional machining to modify one of these flywhee= ls is the holes for the torsional damper. >>>> >>>> Thanks for any help. >>>> >>>> =20 >>>> >>>> Joe Berki >>>> >>>> -- >>>> 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/L= ist.html >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/Li= st.html > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/Lis= t.html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/Lis= t.html -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html --_815F1007-9356-42D0-BBD3-F04567ECA6FD_ Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"

Nice work Neil.=C2=A0

I understand why the price has to be so high for such relative= ly simple parts.=C2=A0 The work behind the scenes is enormous and has to be= spread between so few units.

 

=

I may have missed this detail before.=C2=A0 What kind = of surface does the splined part have to insure grip on the rubber?

 

Tracy Crook=C2= =A0

 

Sent= from Mail= for Windows 10

 

From: Neil Unger 1= 2348ung@gmail.com
Sent: Friday, November 9, 2018 4:09 PM
<= b>To: Rotary motors in a= ircraft
Subject: [FlyRotary] Re: Flexplare Replacement

 

Joe,

<= p class=3DMsoNormal> 

  =   Only mine which has survived to date without mishap.  The testi= ng I

did was to destroy a sample of various "= cushion / flex material on the

bench.  This i= nvolved clamping a unit in the vice and then twisting the

inner with my son-in-law, who weighs 110 KG, on the end of a 6 foot=

length of pipe.  In theory that was in exces= s of 600 ft pounds and the

rotary produces 300 ft = pounds. THen the testing in my glastar which was

i= deal as I was fitting and tuning a new fuel tech ECU.  The backfiring =

and rough running certainly tried everything out.<= /p>

 

Neil.

=

 

 <= /o:p>

On 11/10/2018 6:22 AM, Joseph Berki jskmberki= @windstream.net wrote:

> Neil,

> 

> Are there any cus= hion drives flying?

> Any testing performed?

=

> 

> Joe= Berki

> 

> -----Original Message-----

> From: Rotary= motors in aircraft <flyrotary@lancaironline.net>

> Sent: Wednesday, November 7, 2018 3:02 PM

> To: Rotary motors in aircraft <flyrotary@lancaironline.net>

=

> Subject: [FlyRotary] Re: Flexplare Replacement

> 

> jo= e,

> 

&g= t;=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Just unbolt the old flex d= rive, and bolt mine on.

> 

> Neil Unger.

> =

> 

> On 11/7/2018 9:10 PM, Joseph Berki jskmberki@windstream.net wrote:

>> Neil,

>>=  

>> Are there any modifications t= o the RD-1C hardware using your solution?

>><= o:p> 

>> Joe Berki

>> 

>> -----Or= iginal Message-----

>> From: Rotary motors in= aircraft <flyrotary@lancaironline.net>

>&= gt; Sent: Tuesday, November 6, 2018 8:02 PM

>>= ; To: Rotary motors in aircraft <flyrotary@lancaironline.net>

>> Subject: [FlyRotary] Re: Flexplare Replacement

>> 

>= ;> Marc,

>> 

>>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Attached photo= is of the original mounted on my engine,=C2=A0 The unit shown has urethane= as the "flex" which lasted about 5 hours and the spacer is the o= riginal without excess material milled off for lightness.=C2=A0 Input shaft= is Tracy's whereas mine is one piece and a lot dearer!!=C2=A0=C2=A0 Basica= lly as shown the plate with the vulcanised drive block is bolted through th= e spacer and flexplate onto the e shaft as shown and is lighter than Tracy'= s but by how much I forget.=C2=A0 Made specifically to retrofit all Tracy's= reduction drives.

>> 

>> Neil Unger.

>> 

>> 

>> On 11/7/2018 10:12 AM, Marc Wiese cardmarc@charter.ne= t wrote:

>>> Neil,

>>> Can I see a sketch of how it all fits together front to back?=

>>> Marc

>>= > 

>>> -----Original Me= ssage-----

>>> From: Rotary motors in airc= raft <flyrotary@lancaironline.net>

>>&g= t; Sent: Tuesday, November 06, 2018 3:28 PM

>>= ;> To: Rotary motors in aircraft <flyrotary@lancaironline.net>

=

>>> Subject: [FlyRotary] Re: Flexplare Replac= ement

>>> 

>>> Joe,=C2=A0 There is another way which is my cushion d= rive (attached) which will cost approx $500 USD plus freight with the curre= nt exchange rate. Main cost is the splined drive block so that it matches u= p with Tracy's splined input shaft.=C2=A0 The photo shows the 2 parts of th= e unit, spacer and splined cushion drive, which bolt direct onto the e shaf= t with the normal flexplate=C2=A0 in between. Uses the normal flexplate wit= h no strain whatever on the flexplate.=C2=A0 Your money and your decision!!=

>>> 

>>> Neil Unger

>>> =

>>> 

>>> On 11/7/2018 6:06 AM, Jeff Whaley jwhaley@datacast.c= om wrote:

>>>> Hi Joe, I believe there = are two ways you can go, though I don't have part numbers or exact details = for you:

>>>> 1) Tracy's Method: Use an= aluminum flywheel directly, including the center spline coupling - this el= iminates the damper plate and the need to drill holes. The catch is the spl= ine does not match the original RD1-C prop shaft spline.

>>>> 2) Dave Leonard's Method: Use an aluminum flywheel, = no center spline, mount the damper plate, remove material from one face to = adjust ring gear position relative to starter.

>= >>> A quick search of the list should get you more info as it was = discussed lately ...

>>>> Jeff

>>>> 

&= gt;>>> I have been looking at various flywheels for possible candi= date replacement.

>>>> =

>>>> I thought the aluminum units woul= d provide the least amount of weight gain.

>>= >> 

>>>> I notice= d that there are a lot of holes in these units including the replaceable fr= iction area with many screw holes.

>>>>=  

>>>> I was under the = impression that the holes in the flexplate promoted stress cracks.

>>>> 

&= gt;>>> These flywheels however may have sufficient material to cou= nteract the stress potential.

>>>>=  

>>>> Can someone provide a= brand or part number that is acceptable?

>>&= gt;> 

>>>> I believe= that the additional machining to modify one of these flywheels is the hole= s for the torsional damper.

>>>>&n= bsp;

>>>> Thanks for any help.

>>>> 

>>>>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0

>>>> 

>>>>= ; Joe Berki

>>>> 

>>>> --

>>>= > Homepage:=C2=A0 http://www.flyrotary.com/

>= >>> Archive and UnSub:=C2=A0=C2=A0 http://mail.lancaironline.net:8= 1/lists/flyrotary/List.html

>>> --

>>> Homepage:=C2=A0 http://www.flyrotary.com/

=

>>> Archive and UnSub:=C2=A0=C2=A0 http://mai= l.lancaironline.net:81/lists/flyrotary/List.html

&g= t;> 

>> --

>> Homepage:=C2=A0 http://www.flyrotary.com/

>> Archive and UnSub:=C2=A0=C2=A0 http://mail.lancaironline.= net:81/lists/flyrotary/List.html

> 

> --

> Homepage:= =C2=A0 http://www.flyrotary.com/

> Archive and U= nSub:=C2=A0=C2=A0 http://mail.lancaironline.net:81/lists/flyrotary/List.htm= l

> 

>= ; 

> --

= > Homepage:=C2=A0 http://www.flyrotary.com/

>= Archive and UnSub:=C2=A0=C2=A0 http://mail.lancaironline.net:81/lists/flyr= otary/List.html

 

 

--

Homepage:=C2=A0 http://www.flyrotary.com/

Archive = and UnSub:=C2=A0=C2=A0 http://mail.lancaironline.net:81/lists/flyrotary/Lis= t.html

 

= --_815F1007-9356-42D0-BBD3-F04567ECA6FD_--