X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [199.185.220.220] (HELO priv-edtnes57.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 951686 for flyrotary@lancaironline.net; Fri, 20 May 2005 21:18:52 -0400 Received-SPF: pass receiver=logan.com; client-ip=199.185.220.220; envelope-from=echolakeresort@telus.net Received: from boucher-oddle24 ([207.194.26.16]) by priv-edtnes57.telusplanet.net (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20050521011803.RIAJ25196.priv-edtnes57.telusplanet.net@boucher-oddle24> for ; Fri, 20 May 2005 19:18:03 -0600 Received: from 127.0.0.1 (AVG SMTP 7.0.322 [266.11.13]); Fri, 20 May 2005 18:18:01 -0700 Message-Id: <428E8B65.00000B.02672@BOUCHER-ODDLE24> Date: Fri, 20 May 2005 18:14:13 -0700 (Pacific Standard Time) X-Mailer: IncrediMail (3001609) From: "Echo Lake Fishing Resort (Georges Boucher)" References: To: Subject: Re: [FlyRotary] Re: Sized 13b X-FID: FLAVOR00-NONE-0000-0000-000000000000 X-Priority: 3 Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=======AVGMAIL-428E8C493F81=======" --=======AVGMAIL-428E8C493F81======= Content-Type: Multipart/Alternative; boundary="------------Boundary-00=_PFFTCJD0000000000000" --------------Boundary-00=_PFFTCJD0000000000000 Content-Type: Text/Plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable George (down under)=0D Apparently there is a spur gear drive on the market, it has a large gear with internal teeth & a spur gear runs on the inside ( in my book a poor = set up due high side thrust on the bearings) & they cost $6500.00 US (which i= s a Gasillion dollars Canadian). on the balancing what do you think they do w= ith the counter weights?=0D Georges B.=0D =0D -------Original Message-------=0D =0D From: Rotary motors in aircraft=0D Date: 05/20/05 16:25:25=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: Sized 13b=0D =0D Georges,=0D What did he mean they don't use planetary reduction units what the hell d= o they use ?=0D I assume that the static balancing they use is by matching the rotors carefully.=0D It has been noticed that after rebuilding some motors never run as smooth= ly as the factory motors and it has been suggested that more carefully match= ing the rotors goes a long way in smoothing this out.=0D George ( down under) =0D Group FWIW=0D I had heard of a Christavia Mk IV that had a 13B with plugs up that "size= d up". I tracked him down & phoned him, he told me that the engine sized wh= ile taxing for take off. I asked him what the problem was he told me that he didn't know, he said that he sent the engine back to Atkins. I sent Atkin= s an email to enquire about the reason for the seizure. To my surprise at 7= :30 this morning Atkins phoned me,=0D he said that the engine was mounted "plugs up" with a home made dry sump system that allowed the engine to run without oil pressure on start up un= til the system primed itself. The results was that all the bearings in the engine were "wiped out" completely (didn't size up really just stopped). Atkins claims the plugs up added to the problem. He said he no longer use= s=20 planetary "gear reduction drive & that he uses Castrol 20/50 instead of synthetic also said he had a customer with over 2000 hrs, He mumbled something when I mentioned Tracy's 1450 hours but I didn't get what it wa= s. I guess he called me to avoid speculation that the engine failure was a result of his workmanship. I asked him about engine balancing, he said th= ey do "static" balancing in house (what ever that means). so it seems like t= his was "builder error" He ran it for over 200hrs, replaced it with a220hp Franklin 6 cyl. & is as happy with the change as " a pig in s..."=0D Thought you might be interested.=0D Georges B.=0D =0D =0D =0D =0D =0D =0D No virus found in this outgoing message.=0D Checked by AVG Anti-Virus.=0D Version: 7.0.322 / Virus Database: 266.11.13 - Release Date: 5/19/2005=0D =0D =0D =0D =0D >> Homepage: http://www.flyrotary.com/=0D >> Archive: http://lancaironline.net/lists/flyrotary/List.html=0D =0D =20 --------------Boundary-00=_PFFTCJD0000000000000 Content-Type: Text/HTML; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
George (down under)
Apparently there is a spur gear drive on the market, it has a large = gear with internal teeth & a spur gear runs on the inside (= in my book a poor set up due high side thrust on the bearings) &= ; they cost $6500.00 US (which is a Gasillion dollars Canadian). on the b= alancing what do you think they do with the counter weights?
Georges B.
 
-------Original Message-------
 
Date: 05/20/05 16:= 25:25
Subject: [FlyRotar= y] Re: Sized 13b
 
Georges,
What did he mean they don't use planetary reduction u= nits what the hell do they use ?
I assume that the static balancing they use is  = by matching the rotors carefully.
It has been noticed that after rebuilding some m= otors never run as smoothly as the factory motors and it has been suggest= ed that more carefully matching the rotors goes a long way in smoothing t= his out.
George ( down under) 
Group FWIW
I had heard of a Christavia Mk IV that had a 13B with plugs up that = "sized up". I tracked him down & phoned him, he told me that the engi= ne sized while taxing for take off. I asked him what the problem was he t= old me that he didn't know, he said that he sent the engine back to Atkin= s. I sent Atkins an email to enquire about the reason for the seizure. To= my surprise at 7:30 this morning Atkins phoned me,
he said that the engine was mounted "plugs up" with a home made dry = sump system that allowed the engine to run without oil pressure on start = up until the system primed itself. The results was that all the bearings = in the engine were "wiped out" completely (didn't size up really just sto= pped). Atkins claims the plugs up added to the problem. He said he no lon= ger uses "planetary "gear reduction drive & that he uses Castrol 20/5= 0 instead of synthetic also said he had a customer with over 2000 hrs, He= mumbled something when I mentioned Tracy's 1450 hours but I didn't get w= hat it was. I guess he called me to avoid speculation that the engine fai= lure was a result of his workmanship. I asked him about engine balancing,= he said they do "static" balancing in house (what ever that means). so i= t seems like this was "builder error" He ran it for over 200hrs, replaced= it with a220hp Franklin 6 cyl. & is as happy with the change as " a = pig in s..."
Thought you might be interested.
Georges B.

No virus found in this outgoing message.
Checked by AVG Anti-Vi= rus.
Version: 7.0.322 / Virus Database: 266.11.13 - Release Date: 5/19= /2005

>>  Homepage:  http://www.flyrotary.com/
>&g= t;  Archive:   http://lancaironline.net/lists/flyrotary/Li= st.html
 
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