X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from poplet2.per.eftel.com ([203.24.100.45] verified) by logan.com (CommuniGate Pro SMTP 5.2.15) with ESMTP id 3791792 for flyrotary@lancaironline.net; Sat, 01 Aug 2009 21:04:06 -0400 Received-SPF: none receiver=logan.com; client-ip=203.24.100.45; envelope-from=lendich@aanet.com.au Received: from sv1-1.aanet.com.au (sv1-1.per.aanet.com.au [203.24.100.68]) by poplet2.per.eftel.com (Postfix) with ESMTP id F411C173BDD for ; Sun, 2 Aug 2009 09:03:28 +0800 (WST) Received: from ownerf1fc517b8 (203.171.92.134.static.rev.aanet.com.au [203.171.92.134]) by sv1-1.aanet.com.au (Postfix) with SMTP id EA368BEC059 for ; Sun, 2 Aug 2009 09:03:27 +0800 (WST) Message-ID: <7D3C9C74E7DA47FBBE59114D882857F1@ownerf1fc517b8> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: EC2 and Ed's EFISM - a great combination Date: Sun, 2 Aug 2009 11:03:28 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CA1360.DD91D2B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-Antivirus: avast! (VPS 090801-0, 08/01/2009), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0009_01CA1360.DD91D2B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ed, Your right once again the Ross Bellhousing was quite good and light = weight. Having made my own BH I understand how difficult it is to get it = both strong and light weight. I would go as far as to say the plate BH = is quite agricultural but it's also very strong. Can't be plate for = strength because of it's uniformity and density. The next best thing is = pressure injection casting. I looked at that also and even went to = Taiwan for quotes - however inordinately expensive, because although = they amortise the mold costs, you have order thousands. Nothing is easy. George ( down under) No problem, George, you are certainly correct that the RWS was a = great improvement over the Ross. I still have my Ross thinking at some = point I might have a machine shop make some changes - but, then there is = really no point. The Ross gearbox did have a somewhat "prettier" bell = housing - but, hey, functionality is what its all about under the hood = .er. cowl. =20 Ed =20 Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm -------------------------------------------------------------------------= ----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of George Lendich Sent: Saturday, August 01, 2009 3:01 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: EC2 and Ed's EFISM - a great combination =20 Ed,=20 I stand corrected. I merely wanted to point out (to the initiated) the fact that RWS was = an advancement in and improvement on the Ross. All your points are well made. George ( down under) =20 Actually, George, The RWS drive was not just a redevelopment of the = Ross drive. =20 =20 Tracy basically started from scratch and engineered a redrive that = was designed to meet certain objectives while achieving a reasonable = cost. There is no other redrive I am familiar with that has anywhere = near the number of flying hours that the RWS redrive has with none of = the problems associated with the Ross. =20 While there is a superficial similarly to the Ross (Prop on one end = and rotary on the other, planetary gears in the middle {:>)) in = appearance, the internals are considerably ahead of anything Ross had. = Pressure lubrication of the prop shaft for one thing, an integral thrust = bearing for another, a removable propeller shaft for yet another, full = oil pressure lubrication. The Ross drive required a restrictor in the = oil line to (can you believe this) reduce oil pressure - otherwise the = thing leaked like crazy - even with the restrictor, the rear seal = frequently was a leaky mess. But, reducing the oil pressure was one = reason the Ross had marginal lubrication in my opinion. Even then, the = oil distribution inside the Ross was also not well designed.=20 =20 Don't get me wrong, I was glad to get a Ross - because it was the = only thing around at the time. Had old man, Lou Ross, lived longer he = may have eventually fixed a lot of these issues, but unfortunately he = did not and I won't go into the situation with his son, Chris. But, we = are fortunate that Tracy took on this challenge and did it right. =20 =20 One thing I really appreciate about the RWS design is that it has a = considerably different internal set up with easily replaceable parts - = which was not the case with the Ross. If you wanted to completely = disassembly a Ross unit you most likely had to take it to a machine = shop. =20 Just wanted to make it clear that in my opinion the RWS should not = be associated with the Ross unit which many have found shortcomings in. =20 Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm -------------------------------------------------------------------------= --- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of George Lendich Sent: Friday, July 31, 2009 5:20 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: EC2 and Ed's EFISM - a great combination =20 =20 Steve, The Ross drive was redeveloped by Tracy Crook of Real World = Solutions (RWS). Tracy now uses the 6 planet planetary (Ford Unit) and = is about the best you will get weight wise and value for money. =20 There are other similar units - all have slightly different = construction, however Tracy's is well proven. I will probably make my = own, but only because of the tyranny of distance and associated costs. George (down under). =20 Steve, I went with the RD-1B PSRU from RWS. =20 T Mann __________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_0009_01CA1360.DD91D2B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ed,
Your right once again the Ross = Bellhousing was=20 quite good and light weight. Having made my own BH I understand how = difficult it=20 is to get it both strong and light weight. I would go as far as to say = the plate=20 BH is quite agricultural but it's also very strong. Can't be plate for = strength=20 because of it's uniformity and density. The next best thing is pressure=20 injection casting. I looked at that also and even went to Taiwan for = quotes -=20 however inordinately expensive, because although they amortise the mold = costs,=20 you have order thousands.
Nothing is easy.
George ( down under)

   No=20 problem, George, you are certainly correct that the RWS was a great=20 improvement over the Ross.  I still have my Ross thinking at some = point I=20 might have a machine shop make some changes =96 but, then there is = really no=20 point.  The Ross gearbox did have a somewhat =93prettier=94 bell = housing =96=20 but, hey, functionality is what its all about under the hood =85er=85=20 cowl.

 

Ed

 

Ed=20 Anderson

Rv-6A = N494BW Rotary=20 Powered

Matthews,=20 NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://www.dmack.net/mazda/index.html

http://www.flyrotary.com/

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.r= otaryaviation.com/Rotorhead%20Truth.htm

From:=20 Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On=20 Behalf Of George Lendich
Sent: Saturday, August 01, 2009 = 3:01=20 AM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re: EC2 = and Ed's=20 EFISM - a great combination

 

Ed,=20

I stand=20 corrected.

I merely wanted to point = out (to=20 the initiated) the fact that RWS was an advancement in and improvement = on the=20 Ross.

All your points are well = made.

George ( down=20 under)

 

Actually, = George,=20 The RWS drive was not just a redevelopment of the Ross drive.=20  

 

Tracy = basically started=20 from scratch and engineered a redrive that was designed to meet = certain=20 objectives while achieving a reasonable cost.   There is = no other=20 redrive I am familiar with that has anywhere near the number of = flying hours=20 that the RWS redrive has with none of the problems associated with = the=20 Ross.

 

While = there is a=20 superficial similarly to the Ross (Prop on one end and rotary on the = other,=20 planetary gears in the middle {:>)) in appearance, the internals = are=20 considerably ahead of anything Ross had.  Pressure lubrication = of the=20 prop shaft for one thing, an integral thrust bearing for another, a=20 removable propeller shaft for yet another, full oil pressure=20 lubrication.  The Ross drive required a restrictor in the oil = line to=20 (can you believe this) reduce oil pressure =96 otherwise the thing = leaked like=20 crazy =96 even with the restrictor, the rear seal frequently was a = leaky=20 mess.  But, reducing the oil pressure was one reason the Ross = had=20 marginal lubrication in my opinion. Even then, the oil distribution = inside=20 the Ross was also not well designed.

 

Don=92t = get me wrong,=20 I was glad to get a Ross =96 because it was the only thing around at = the=20 time.  Had old man, Lou Ross, lived longer he may have = eventually fixed=20 a lot of these issues, but unfortunately he did not and I won=92t go = into the=20 situation with his son, Chris.  But, we are fortunate that = Tracy took = on this=20 challenge and did it right.   =

 

One thing = I really=20 appreciate about the RWS design is that it has a considerably = different=20 internal set up with easily replaceable parts =96 which was not the = case with=20 the Ross.  If you wanted to completely disassembly a Ross unit = you most=20 likely had to take it to a machine = shop.

 

Just = wanted to make=20 it clear that in my opinion the RWS should not be associated with = the Ross=20 unit which many have found shortcomings = in.

 

Ed=20 Anderson

Rv-6A = N494BW Rotary=20 Powered

Matthews, = NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://www.dmack.net/mazda/index.html

http://www.flyrotary.com/

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.r= otaryaviation.com/Rotorhead%20Truth.htm

From:=20 Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net] On=20 Behalf Of George Lendich
Sent: Friday, July 31, 2009 = 5:20=20 PM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re: EC2 = and Ed's=20 EFISM - a great combination

 

 

Steve,

The Ross drive was = redeveloped=20 by Tracy Crook of Real World Solutions (RWS). Tracy now = uses the 6=20 planet planetary (Ford Unit) and is about the best you will = get =20 weight wise and value for = money.

 

There are other = similar units=20 - all have slightly different construction, however = Tracy's = is well=20 proven. I will probably make my own, but only because of the = tyranny of=20 distance and associated costs.

George (down=20 under).

 

Steve,

I = went with=20 the RD-1B PSRU from RWS.

 

T=20 Mann



__________ Information from ESET = NOD32=20 Antivirus, version of virus signature database 3267 (20080714)=20 __________

The message was checked by ESET NOD32 = Antivirus.

http://www.eset.com



__________ Information from ESET = NOD32=20 Antivirus, version of virus signature database 3267 (20080714)=20 __________

The message was checked by ESET NOD32 = Antivirus.

http://www.eset.com

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