X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [65.54.250.82] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 1024218 for flyrotary@lancaironline.net; Mon, 06 Mar 2006 10:06:37 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.250.82; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 6 Mar 2006 07:05:52 -0800 Message-ID: Received: from 4.171.150.64 by BAY115-DAV10.phx.gbl with DAV; Mon, 06 Mar 2006 15:05:48 +0000 X-Originating-IP: [4.171.150.64] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Turbo oil speculation Date: Mon, 6 Mar 2006 10:05:44 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_009F_01C64105.88A897B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Mon, 6 Mar 2006 10:05:45 -0500 X-OriginalArrivalTime: 06 Mar 2006 15:05:52.0016 (UTC) FILETIME=[75ACB900:01C6412F] This is a multi-part message in MIME format. ------=_NextPart_000_009F_01C64105.88A897B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Yes, the oil from the RD-1x is definitely churned, as is the cooling oil = from the rotors. An oil/air separator plate above the pan is highly = recommended. See Racing Beat tech manual/catalog (the quickest = education on rotaries you can find) for details. The engine mounting = plate in the CC engine mount serves this purpose as well. A separate = oil system is fine but does add some weight & complexity which I avoid = whenever possible. There may be a longer TBO with the separate oil = system used with gear oil but I accept the shorter life span of the = gears (which are relatively cheap). To keep this in perspective, I have = not yet seen a worn out set of gears. At 800 hours on my first set = there was no visible wear. My sincere hope is to wear out many sets : ) Tracy Hi George, I was under the impression that the RD's need full oil pressure (60-80 psi). Does the Pegasus put out that kind of pressure? Also, how = large is the reservoir you're using? I was thinking about using a separate oil system for my RD-1C, but finally decided I didn't need another device drawing current, besides the engine oil connection was simpler. :) Bob W. On Sun, 5 Mar 2006 15:30:35 -0800 (PST) George Graham > wrote: >=20 > Just a thought. I noticed that the oil coming out of my RD-1A = gearbox is > foamed, from the meshing gears no doubt, and the oil in the engine = may=20 > also have some air entrained from the rotor gears. > =20 > Perhaps it might be prudent to use a separate oil system for the = turbocharger. > I have one on my gearbox, which consists of the Pegasus electric = pump, > a reservoir and a filter. It seems to work very well and is not = very heavy. > =20 > I personally do not need a turbo, but if I did, I'd look at the = quality of the oil > lube and cooling if my turbochargers kept failing prematurely. > =20 >=20 > George Graham > Mazda Rx7ez N4449E > Sarasota Florida -SRQ >=20 > --------------------------------- > Yahoo! Mail > Bring photos to life! New PhotoMail makes sharing a breeze.=20 --=20 http://www.bob-white.com N93BD - Rotary Powered BD-4 (first engine start 1/7/06) Custom Cables for your rotary installation - http://www.roblinphoto.com/shop/ -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_009F_01C64105.88A897B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Yes, the oil from the RD-1x is definitely churned, as is the = cooling oil=20 from the rotors.  An oil/air separator plate above the pan is = highly=20 recommended.  See Racing Beat tech manual/catalog (the quickest = education=20 on rotaries you can find) for details.   The engine=20 mounting plate in the CC engine mount serves this purpose as = well. =20  A separate oil system is fine but does add some weight & = complexity=20 which I avoid whenever possible.  There may be a longer TBO with = the=20 separate oil system used with gear oil but I accept the shorter life = span of the=20 gears (which are relatively cheap).  To keep this in perspective, I = have=20 not yet seen a worn out set of gears.  At 800 hours on my = first set=20 there was no visible wear.  My sincere hope is to wear out many = sets :=20 )
 
Tracy

Hi George,

I was under the impression that the = RD's need=20 full oil pressure (60-80
psi).  Does the Pegasus put out that = kind of=20 pressure?  Also, how large
is the reservoir you're = using?  I was=20 thinking about using a separate
oil system for my RD-1C, but = finally=20 decided I didn't need another
device drawing current, besides the = engine=20 oil connection was
simpler. :)

Bob W.


On Sun, 5 = Mar 2006=20 15:30:35 -0800 (PST)
George Graham <rx7ez@yahoo.com> = wrote:

>=20
>   Just a thought.  I noticed that the oil = coming out=20 of my RD-1A gearbox is
>   foamed, from the meshing = gears no=20 doubt, and the oil in the engine may
>   also have = some air=20 entrained from the rotor gears.
>   =
>  =20 Perhaps it might be prudent to use a separate oil system for the=20 turbocharger.
>   I have one on my gearbox, which = consists of=20 the Pegasus electric pump,
>   a reservoir and a = filter. =20 It seems to work very well and is not very heavy.
>  =20
>   I personally do not need a turbo, but if I did, = I'd look=20 at the quality of the oil
>   lube and cooling if my=20 turbochargers kept failing prematurely.
>  
> =
>=20 George Graham
> Mazda Rx7ez N4449E
> Sarasota Florida = -SRQ
>=20
> ---------------------------------
> Yahoo! Mail
> = Bring=20 photos to life! New PhotoMail  makes sharing a breeze. =


--=20
http://www.bob-white.com
N93BD = - Rotary=20 Powered BD-4 (first engine start 1/7/06)
Custom Cables for your = rotary=20 installation -
http://www.roblinphoto.com/shop= /

--
Homepage: =20 http://www.flyrotary.com/
Archi= ve and=20 UnSub:   http://mail.lanca= ironline.net/lists/flyrotary/
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