X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail12.syd.optusnet.com.au ([211.29.132.193] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTPS id 1009501 for flyrotary@lancaironline.net; Tue, 21 Jun 2005 18:03:18 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.193; envelope-from=lendich@optusnet.com.au Received: from george (d211-31-107-82.dsl.nsw.optusnet.com.au [211.31.107.82]) by mail12.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j5LM2Ttb029311 for ; Wed, 22 Jun 2005 08:02:30 +1000 Message-ID: <002e01c576ac$f04a97c0$526b1fd3@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Geardrive comments Date: Wed, 22 Jun 2005 08:02:38 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002B_01C57700.C1B07700" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_002B_01C57700.C1B07700 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageSorry Tracy, Someone suggested your 2.85 drive is different to your 2.17 - apart from = the obvious and necessary changes to the planet set-up. If you taking off at 6,200 ( that is low for a 2.85), what is your = cruise? There are a number of oil separators used on motorbikes which are small = and would suit this purpose. George ( down under) Believe nothing of what you hear and only have of what you see! Where do these stories come from? : ) There has been no change to = the 2.85 (RD-1C) design. My takeoff RPM is around 6200 rpm (limited by = fixed pitch prop) and top speed rpm is 7450 so far. =20 Top speed runs have been limited due to oil mist blowing out of the = crankcase vent at anything above 7000 rpm. Still working on an oil / = air separator needed for air racing. No time for making this and new = prop cuffs so I'll miss the Ohio to Oshkosh race this year. Look = forward to doing it next year in the 20B powered RV-8 which is moving = ahead (finally). I noticed they are separating the formula RV classes = by engine displacement Bwahh Ha Ha Ha! .... : ) Tracy MY PSRU is not dissimilar to Tracy's in regard to using the 2.85 = Ford E4OD Planetary. Just differently configured, but then again I'm led = to believe that Tracy has changed the design for the 2.85. I personally = prefer different bearings. I don't plan on going over 7,500. Someone mentioned to me Tracy didn't exceed 7,200 on take-off, with = the 2.85. I hoping for 115 to 125hp at 7,500 rpm, I think that's achievable! George ( down under) ------=_NextPart_000_002B_01C57700.C1B07700 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Sorry Tracy,
Someone suggested your 2.85 drive is different = to your=20 2.17 - apart from the obvious and necessary changes to the planet=20 set-up.
 
If you taking off at 6,200 ( that is low for a = 2.85), what=20 is your cruise?
 
There are a number of oil separators used on = motorbikes=20 which are small and would suit this purpose.
 
George ( down under)
Believe nothing of what you hear and only have = of what you=20 see!
Where do these stories come from? =  : ) =20 There has been no change to the 2.85 (RD-1C) design.  My takeoff = RPM is=20 around 6200 rpm (limited by fixed pitch prop) and top speed rpm = is 7450=20 so far. 
 
Top speed runs have been limited due = to oil mist=20 blowing out of the crankcase vent at anything above 7000 rpm.  = Still=20 working on an oil / air separator needed for air racing.  No time = for=20 making this and new prop cuffs so I'll miss the Ohio to Oshkosh race = this=20 year.  Look forward to doing it next year in the 20B powered RV-8 = which=20 is moving ahead (finally).  I noticed they are separating the = formula RV=20 classes by engine displacement   Bwahh Ha Ha Ha! ....  = :=20 )
 
Tracy
 
 
 
MY PSRU is not dissimilar to = Tracy's in regard=20 to using the 2.85 Ford E4OD Planetary. Just differently configured, = but then=20 again I'm led to believe that Tracy has changed the design for the = 2.85. I=20 personally prefer different bearings. I don't=20 plan on going over 7,500.
Someone mentioned to me Tracy = didn't exceed=20 7,200 on take-off, with the 2.85.
 
I hoping for 115 to 125hp at 7,500 = rpm, I think=20 that's achievable!
 
George ( down under)
 
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