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 1010662 for flyrotary@lancaironline.net; Wed, 22 Jun 2005 19:15:58 -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 j5MNF9UI027996 for ; Thu, 23 Jun 2005 09:15:10 +1000 Message-ID: <007801c57780$41fa2940$526b1fd3@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Geardrive comments Date: Thu, 23 Jun 2005 09:15:19 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0075_01C577D4.135225D0" 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_0075_01C577D4.135225D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageThanks Tracy, BTW I have placed an order for the EC2 and EM2 for my testing and = display ( single rotor). Hoping to take it to some airshows etc. I have done a deal with Butch on the bellhousing I sent him. No money = changes hands but he organizes product for me from his side of the pond. I have asked him to place the desired deposit for both items, = considering the lead time of September. I haven't heard from him which = suggests he's indisposed, because of his employment circumstances - no = doubt! He says he will be retired again soon, but will they let him go!? Anyhow if you could accept my order under these conditions I will be = grateful. Laura tells me Butch has a good credit rating up/over there. We used the same system for the apex seals and I received those - = thanks! I can't wait to use them. George (down under) =20 Sorry 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. No offence taken George and I know you meant no harm. It's just = that I know from past experience that an off-hand remark about me having = "changed the design of the 2.85" is enough to set off a deluge of calls = from 2.85 drive buyers wanting to know if they have the latest version = and what the changes were. Don't know who suggested it but the basic = design approach, materials, lubrication scheme, etc are the same on all = the drives in current production (RD-1A/B/C). As you said, there are = the obvious differences between fixed planet and fixed ring gear types. If you taking off at 6,200 ( that is low for a 2.85), what is your = cruise? I cruise at 5400 - 5600 RPM. This is an economy cruise setting but = that's what I use unless I'm running out of time, daylight, or weather. = I always choose a prop to target the maximum desired engine rpm at top = speed and let everything else fall where it may. =20 There are a number of oil separators used on motorbikes which are = small and would suit this purpose. I'm on the lookout! I usually end up fabricating something that = will fit the space & shape available. I have several of the excellent = RX-8 oil-air separators but they won't begin to fit. George ( down under) Believe nothing of what you hear and only have of what you see! Unless you can verify it one way or another, Amen! =20 Tracy 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_0075_01C577D4.135225D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Thanks Tracy,
BTW I have placed an order for the EC2 and EM2 = for my=20 testing and display ( single rotor). Hoping to take it to some airshows=20 etc.
 
I have done a deal with Butch on the bellhousing = I sent=20 him. No money changes hands but he organizes product for me from his = side of the=20 pond.
 
I have asked him to place the desired deposit = for both=20 items, considering the lead time of September. I haven't heard from him = which=20 suggests he's indisposed, because of his employment circumstances - = no=20 doubt! He says he will be retired again soon, but will they let him=20 go!?
 
Anyhow if you could accept my order under these = conditions=20 I will be grateful. Laura tells me Butch has a good credit rating = up/over=20 there.
 
We used the same system for the apex seals and I = received=20 those - thanks! I can't wait to use them.
 
George (down under)

 
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.
 
No offence taken George and I know you = meant no=20 harm.  It's just that I know from past experience that an = off-hand=20 remark about me having "changed the design of the 2.85" is = enough=20 to set off a deluge of calls from 2.85 drive buyers wanting to know = if they=20 have the latest version and what the changes were.  Don't know = who=20 suggested it but the basic design approach, materials, lubrication = scheme,=20 etc are the same on all the drives in current production=20 (RD-1A/B/C).  As you said, there are the obvious = differences=20 between fixed planet and fixed ring gear types.
 
If you taking off at 6,200 ( that is low for = a 2.85),=20 what is your cruise?
 
I cruise at 5400 - 5600 RPM.  This = is an=20 economy cruise setting but that's what I use unless I'm running out = of time,=20 daylight, or weather.  I always choose a prop to target the = maximum=20 desired engine rpm at top speed and let everything else fall where = it=20 may. 
 
There are a number of oil separators used on = motorbikes which are small and would suit this purpose.
 
I'm on the lookout!  I usually end = up=20 fabricating something that will fit the space & shape = available.  I=20 have several of the excellent RX-8 oil-air separators but they won't = begin=20 to fit.
 
George ( down under)
Believe nothing of what you hear and only = have of what=20 you see!
 
Unless you can verify it one = way or=20 another, Amen! 
Tracy
 
Where do these stories come from? =  :=20 )  There has been no change to the 2.85 (RD-1C) design.  = My=20 takeoff RPM is around 6200 rpm (limited by fixed pitch = prop) and top=20 speed rpm is 7450 so far. 
 
Top speed runs have been limited = due to oil=20 mist blowing out of the crankcase vent at anything above 7000 = rpm. =20 Still working on an oil / air separator needed for air = racing.  No=20 time for making this and new prop cuffs so I'll miss the Ohio to = Oshkosh=20 race this year.  Look forward to doing it next year in the = 20B=20 powered RV-8 which is moving ahead (finally).  I noticed they = are=20 separating the formula RV classes by engine = displacement   Bwahh=20 Ha Ha Ha! ....  : )
 
Tracy
 
 
 
MY PSRU is not dissimilar to = Tracy's in=20 regard to using the 2.85 Ford E4OD Planetary. Just differently=20 configured, but then again I'm led to believe that Tracy has = changed the=20 design for the 2.85. I personally prefer different bearings.=20 I don't plan on going over=20 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=20 think that's achievable!
 
George ( down = under)
 
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