X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm22.access.bullet.mail.sp2.yahoo.com ([98.139.44.149] verified) by logan.com (CommuniGate Pro SMTP 5.4.2) with SMTP id 5170177 for flyrotary@lancaironline.net; Sun, 23 Oct 2011 20:12:09 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.44.149; envelope-from=keltro@att.net Received: from [98.139.44.101] by nm22.access.bullet.mail.sp2.yahoo.com with NNFMP; 24 Oct 2011 00:11:35 -0000 Received: from [98.139.44.80] by tm6.access.bullet.mail.sp2.yahoo.com with NNFMP; 24 Oct 2011 00:11:35 -0000 Received: from [127.0.0.1] by omp1017.access.mail.sp2.yahoo.com with NNFMP; 24 Oct 2011 00:11:35 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 779675.66000.bm@omp1017.access.mail.sp2.yahoo.com Received: (qmail 27212 invoked by uid 60001); 24 Oct 2011 00:11:35 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1319415095; bh=5xvf3vOS7zFTUvPj3N6rTDK4vaDG1LI3sAIKo6Lf3YM=; h=X-YMail-OSG:Received:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=JEHi29LHLhdnWyFD4VX+r6C/jMMO219z+5QVDDqeN5+XtfIWTrs+tqFrrF3yNZ0P4EhWo0Ls3EFZgLQ51uUwiwG4bWXN5yi4H8ljQFNyzr3/+u8qwg4CIX4wmbr1XE7TF8kjfdEEIECKLQGJfXh5+BxPPwo5T2JM1S5K3s+gFsM= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=att.net; h=X-YMail-OSG:Received:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=YMiPhmh+FQjk04zsHum5D2xf7BX/LNczBV9EsCryLwdk4O20h/Kdb3yR+qi8EB3yzQYrCzQDGTbZOYWtRmtvfYYJXKdArXxj2komj3NwQRk7TChf3JH5c29XerEXbbNGl6FJPa0xGpNkb2DV4puBEmTAWmpzZUv3ZO6wPoP9SJM=; X-YMail-OSG: 5syizNcVM1m1FmjvMDNUZbQG394dx5mulG2ureODBzqqRjV 6PCOe6PdscQ0D0eLbL0nKHrq7QXdTWsouJefn3umgOc_y6vEOwv.duuaHzAH zdlfm60PnmKc.PeNPErC.i.SZYmoP7tF_xafXVDE2YSSAo3A5g8joQn8fdpX 01eKPxQa4.XkVKwU4uyCOjYB4RHULFR526F.Lj1PQE7G3nWSBPKSmE2PFPYW 9kFA_2ZeIq72hoFegkjS8X_sKdCkvSrOKeUR2inn.71fcn58ssW8veZBRVON TAicD9zNGErHWHGVelKJWljNE.aFZBOi_O.OKHy5nm4upUWVTfJWc._sGYfU 6PhvSa5PCpfVovNsmmRdP.S1L82TvsKoUcACG8o4CbaK_ag-- Received: from [208.114.33.176] by web83904.mail.sp1.yahoo.com via HTTP; Sun, 23 Oct 2011 17:11:35 PDT X-Mailer: YahooMailWebService/0.8.114.317681 Message-ID: <1319415095.97387.YahooMailNeo@web83904.mail.sp1.yahoo.com> Date: Sun, 23 Oct 2011 17:11:35 -0700 (PDT) From: Kelly Troyer Reply-To: Kelly Troyer Subject: Dave Leonard_Redrive To: Rotary motors in aircraft MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-165672779-1319415095=:97387" --0-165672779-1319415095=:97387 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dave,=0A=A0=0A=A0=A0 Any firm conclusions=A0for the apparent lack of lubric= ation getting to the upper planets of your=0ARD1B re-drive during your Reno= race heats ?...............I fully realize you were putting a lot of=0Atur= bo boosted=A0power (probably 250+ hp)=A0through the drive.............Have = you had a chance to=0Ainspect the=A0re-drive=A0 that you borrowed for signs= of overheat of the upper planets ?..........=0A=A0=0A=A0 Several years ago= when the "Ross" re-drives were the only ones available for the Rotary I=0A= remember reading of a similar problem with the 2.17 ratio..........The theo= ry was that because =0Athe 2.17 planet is fixed with the ring gear rotating= around it that centrifugal force at high rpm=0Aforced the lube from the ri= ng gear and starved the upper planets.............Theory at that time=0Awas= the 2.85 and 3.17 re-drives were largely immune to this problem because th= e ring gear=0Aof these drives is fixed and the planet rotates in an oil bat= h with this same centrifugal force=0Aslinging lube directly to the ring gea= r teeth more or less equally.............FWIW=0A=0AKelly Troyer=0A"DYKE DEL= TA JD2" (Eventually)=0A"13B ROTARY"_ Engine=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL= "_Backplate/Oil Manifold=0A"TURBONETICS"_TO4E50 Turbo --0-165672779-1319415095=:97387 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Dave,
 
   Any fir= m conclusions for the apparent lack of lubrication getting to the uppe= r planets of your
RD1B re-drive during your Reno = race heats ?...............I fully realize you were putting a lot of=
turbo boosted p= ower (probably 250+ hp) through the drive.............Have you had a c= hance to
inspect the re-drive = that you borrowed for signs of overheat of the upper planets ?..........
 
  Several years= ago when the "Ross" re-d= rives were the only ones available for the Rotary I
remember reading of = a similar problem with the 2.17 ratio..........The theory was that because =
the 2.17 planet is f= ixed with the ring gear rotating around it that centrifugal force at high rpm
forced the lube from= the ring gear and starved the upper planets.............Theory at that tim= e
was the 2.85 and 3.1= 7 re-drives= were largely immune to this problem because the ring gear
of these drives is f= ixed and the planet rotates in an oil bath with this same centrifugal force=
slinging lube direct= ly to the ring gear teeth more or less equally.............FWIW
 
Kelly Troyer
"= DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS= "_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo<= /div>
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