X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm13-vm0.access.bullet.mail.sp2.yahoo.com ([98.139.44.160] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with SMTP id 5093420 for flyrotary@lancaironline.net; Tue, 16 Aug 2011 01:37:39 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.44.160; envelope-from=keltro@att.net Received: from [98.139.44.101] by nm13.access.bullet.mail.sp2.yahoo.com with NNFMP; 16 Aug 2011 05:37:03 -0000 Received: from [98.139.44.88] by tm6.access.bullet.mail.sp2.yahoo.com with NNFMP; 16 Aug 2011 05:37:03 -0000 Received: from [127.0.0.1] by omp1025.access.mail.sp2.yahoo.com with NNFMP; 16 Aug 2011 05:37:03 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 738861.33462.bm@omp1025.access.mail.sp2.yahoo.com Received: (qmail 48013 invoked by uid 60001); 16 Aug 2011 05:37:03 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1313473023; bh=GQY96WKQI7udH9enyUVBeJViPsnz8HfNKAo8AMAXfoI=; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=GAtOJ28bHE4Qrcod2TRKTC5FJgh3MzQSNt+6rMqlEE30YvBGshHrsKSTP0JwpwE6SzZ0N0wknfZfWUFmsaui/Baij7fh2olvcRbJijjunU5FObBtXV5TyMNFbkx1V9ORzgEl+aJ/SgNYZzlzbSh7/DeoCUke/JqhmeeemLEfORQ= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=att.net; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=QBZb2WrcJSix4PTjqN5vwQp5rewurbHk6GgIc/hC/SqmCjCXJtEhyuMEtT3HljtdgdOrZYGSZvOQSz4O9obfTyknUfsfg1/AN/wIjjV6GIXpvVhMi/f2Xr1jHQPv+44Hg9LyZfesKwa75IpB4nYDHG7ZH73n0ZfceuOTWt5Gcjo=; X-YMail-OSG: N_OK4egVM1kmnK6xsx.d.mCqlhfksSGRQT0cngxPfg2sgVP _x.YYNmMWP14oNxJmBafZP17x.Bqx9MlzN7vGPqJkqGWsVO6KJ3dTay79rjK XBcPZpjWZkxUUSVOpOKUhXmr.5HswKRonQ1zKEOmiXuVLEe5ykP8P4JkgyEP tzZM9RdIKcBnDn3VboQXLlhGZgmiaiakx_KyLH3l8xtlgtSh.YUSrWFQR0Yb OSwpfsbPLh4_udXLdTJmcLKrjknEdjcgoV8eq7bvFdb69Od4X33Bz4XtTyfF RD.CKhl8VOzdjsHERwmiqfGNKSk6VFCuRWkQQ270NDbaObDxe_rMtkyAjQO4 PvkLc7RCAxArzk1yzROp3f9WT9WMsWss671GZDQoM.4hy5__Zd6JCvq7V68u ySKzedIl2H4o8s.MOiubw.39EhRhJ6HTM.g_QGaFeyHJ.l3uLpV6AtObtSTw 1Ww6FvRRC2TtqD2RSS7aJWg-- Received: from [208.114.41.237] by web83910.mail.sp1.yahoo.com via HTTP; Mon, 15 Aug 2011 22:37:03 PDT X-Mailer: YahooMailWebService/0.8.113.313619 References: Message-ID: <1313473023.39273.YahooMailNeo@web83910.mail.sp1.yahoo.com> Date: Mon, 15 Aug 2011 22:37:03 -0700 (PDT) From: Kelly Troyer Reply-To: Kelly Troyer Subject: Re: First flight with new Flywheel To: Rotary motors in aircraft In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1949839769-1313473023=:39273" --0-1949839769-1313473023=:39273 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dave,=0A=A0=A0 I was under the impression that the steel inserts in the rub= ber/silicone damper are locked=0Abetween the front washer and rear washer (= flywheel) and provided the=A0space for relative =0Amovement between the fle= x-plate (flywheel) and damper plate..............Sounds like you were=0Aget= ting an extreme amount of bolt=A0(twisting) movement between the flex plate= and damper plate=0A(a lot of hp at high boost) which may have accelerated = the flex-plate failure.........I would guess=0Athat the flywheel will elimi= nate any tendency for the bolts to twist under high boost now............= =0A=A0=0A=A0=0A=0AKelly Troyer=0A"DYKE DELTA JD2" (Eventually)=0A"13B ROTAR= Y"_ Engine=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backplate/Oil Manifold=0A"TURBO= NETICS"_TO4E50 Turbo=0A=0AFrom: David Leonard =0ATo: R= otary motors in aircraft =0ASent: Tuesday, Aug= ust 16, 2011 12:00 AM=0ASubject: [FlyRotary] Re: First flight with new Flyw= heel=0A=0A=0ABolt-on would be a stretch, but not too much work either.=A0 M= easurements were putting the distance between the damper spline and adapter= plate at about zero (after the clutch wear surface was taken down).=A0 So = just to be on the safe side I had the shop take a small bit off the spline = while it was in the machine shop.=A0 Now there is a small gap.=A0 I think I= only took off 0.01 or so...=A0 Less that half of the=A0end flange (which I= wanted to keep mostly intact to resist radial expansion of the spline.=0A= =0AI did not use the washers between the damper plate and flywheel.=A0 Curr= ently, they won't fit as they are=A0thicker than the gap between the spline= and adapter plate.=A0 I could have easily taken a little more off the flyw= heel and/or spline and they would fit.=A0 But I don't really see their purp= ose anymore.=A0 The flywheel makes a nice surface for the dampers to lie ag= ainst.=A0 I see little or no overhang past the flywheel mounting surface.= =A0 Removing them also reduced the twisting moment on the bolts.=A0 Lastly,= those washers were really wearing into the damper plate right at the rivet= s holding the damper support blocks.=0A=0AThe scars on the damper plate fro= m the washers show that I was getting a good 3-4 mm of=A0relative movement = between the damper plate and the washers/flex plate.=A0 I think that much w= as not necessary.=A0 My silicone dampers are stiffer and there is now direc= t contact between the flywheel and damper plate so it is possible that I am= not getting enough dampening and risk damaging the gears.=A0 Opinions?=0A= =0A-- =0ADavid Leonard=0A=0ATurbo Rotary RV-6 N4VY=0Ahttp://N4VY.RotaryRost= er.net=0Ahttp://RotaryRoster.net=0A=0A=0A=0AOn Mon, Aug 15, 2011 at 10:11 A= M, Kelly Troyer wrote:=0A=0ADave,=0A>=A0=A0 =A0Also were y= ou able to use the large washers between the damper/drive plate=0A>and flyw= heel (as the silicone dampers overhang the outer edge of the flywheel =0A>m= ounting area slightly) without triming the nose of the damper spline ??....= ........=0A>=0A>=0A>Kelly Troyer=0A>"DYKE DELTA JD2" (Eventually)=0A>"13B R= OTARY"_ Engine=0A>"RWS"_RD1C/EC2/EM2=0A>"MISTRAL"_Backplate/Oil Manifold=0A= >"TURBONETICS"_TO4E50 Turbo=0A>=0A>=0A>From: Tracy =0A= >=0A>To: Rotary motors in aircraft =0A>Sent: M= onday, August 15, 2011 9:38 AM=0A>Subject: [FlyRotary] Re: First flight wit= h new Flywheel=0A>=0A>=0A>=0A>David,=0A>=A0=A0 Was it a bolt on change or w= as it necessary to shorten the nose of the damper spline to use this flywhe= el?=0A>=0A>=0A>Still looking at options.=0A>=0A>=0A>Tracy=0A>=0A>Sent from = my iPad=0A>=0A>On Aug 14, 2011, at 7:20 PM, David Leonard wrote:=0A>=0A>=0A>I finally took the new flywheel and silicone dampers= out for a flight today. =A0I was hoping for a slight improvement in idle a= nd/or smoothness with the little bit of extra weight in the flywheel, but I= guess 4 lbs is just not enough to make much of a difference. =A0I flew aro= und for about an hour and got the RPM up to 7000 and MAP up to 40 in., and = loading the plane to 4G (thinking about gyroscopic forces) without any=A0no= ticeable=A0change in the way the engine sounded or ran. =A0Everything look = ship-shape on a post-flight examination. =0A>>=0A>>=0A>>This is the ACT fly= wheel that Kelly found for us. =A0Looks bulletproof compared to a flex plat= e.=0A>>=0A>>=0A>>Next project, finish installing the ADI system.=0A>>=0A>>-= - =0A>>David Leonard=0A>>=0A>>Turbo Rotary RV-6 N4VY=0A>>http://N4VY.Rotary= Roster.net=0A>>http://RotaryRoster.net=0A>>=0A>=0A> --0-1949839769-1313473023=:39273 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Dave,
   I was u= nder the impression that the steel inserts in the rubber/silicone damper ar= e locked
between the front wa= sher and rear washer (flywheel) and provided the space for relative
movement between the= flex-plate= (flywheel) and damper plate..............Sounds like you were
getting an extreme a= mount of bolt (twisting) movement between the flex plate and damper plate
(a lot of hp at high= boost) which may have ac= celerated the flex-plate failure.....= ....I would guess
that the flywheel wi= ll eliminate any tendency for the bolts to twist under high boost now......= ......
 
 
 
Kelly Troyer
"DYKE D= ELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM= 2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

From:= David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@l= ancaironline.net>
Sent: Tuesday, August 16, 2011 12:00 AM
http://N4VY.RotaryRoster.net
http://RotaryRoster.net

On Mon, Aug 15, 2011 at 10:11 AM, Kelly= Troyer <keltro@att.net><= /SPAN> wrote:
Dave,
    Also were you able to use the large washers b= etween the damper/drive plate
and flywheel (as the silicone dampers overhang the outer edge of= the flywheel
mounting area slightly) without triming the nose of the damper spline ??............<= /SPAN>
 
Kelly Troyer
"DYKE = DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/E= M2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

From: Tracy <rwstracy@gmail.com>=20

To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Monday, August 15, 2011 9:38 AM
= Subject: [FlyRotary] Re: First= flight with new Flywheel

David,
   Was it a bolt on change or was it necessary to shorten th= e nose of the damper spline to use this flywheel?

Still looking at options.

Tracy

Sent from my iPad

On Aug 14, 2011, at 7:20 PM, David Leonard <wdleonard@gmail.com> wrote:

I finally took the new flywheel and silicone dampers out for a flight = today.  I was hoping for a slight improvement in idle and/or smoothnes= s with the little bit of extra weight in the flywheel, but I guess 4 lbs is= just not enough to make much of a difference.  I flew around for abou= t an hour and got the RPM up to 7000 and MAP up to 40 in., and loading the = plane to 4G (thinking about gyroscopic forces) without any noticeable&= nbsp;change in the way the engine sounded or ran.  Everything look shi= p-shape on a post-flight examination.=20

This is the ACT flywheel that Kelly found for us.  Looks bulletpr= oof compared to a flex plate.

Next project, finish installing the ADI system.

--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
=


=




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