X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from access.aic-fl.com ([204.49.76.2] verified) by logan.com (CommuniGate Pro SMTP 5.0c1) with ESMTP id 674900 for flyrotary@lancaironline.net; Fri, 19 Aug 2005 14:00:59 -0400 Received-SPF: none receiver=logan.com; client-ip=204.49.76.2; envelope-from=unicorn@gdsys.net Received: from b9k4u9 (unverified [204.49.76.31]) by access.aic-fl.com (Rockliffe SMTPRA 4.5.6) with SMTP id for ; Fri, 19 Aug 2005 12:54:20 -0500 Message-ID: <001d01c5a4f8$6c7e0510$1f4c31cc@b9k4u9> From: "Richard Sohn" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Antipodean Single Rotor Report Date: Fri, 19 Aug 2005 12:58:06 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001A_01C5A4BD.A4732170" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_001A_01C5A4BD.A4732170 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ----- Original Message -----=20 From: Leon Promet=20 To: Rotary motors in aircraft=20 Sent: Friday, August 19, 2005 6:12 AM Subject: [FlyRotary] Re: Antipodean Single Rotor Report Hi Leon, it is good to hear how the one rotor is running. I had mine run so far = up to 5000RPM and it is running pretty smooth, even so it is only = analytically balanced. Dynamic balancing will come later. How is the = idle with the big Webers? I have not picked a carb yet, mainly because I = have only one port (PP), and I am also trying to get the final = configuration side housings finished first. Attached is a picture as it is running today. Richard Sohn N-2071U Hi Finn, Thanks for the compliment. Much appreciated - acknowledgement, let = alone praise & approbation seem to be pretty thin on the ground from = downunder!! The silence is deafening!! (}:>^). Maybe I've just stolen = somebody's thunder?? The REW WL weighed in @ 54.5 Kg bare, with a = steel sump (cut & shut 12A RX7), steel inlet manifold, and 3.5L of oil = (see pic). In my rush to get the Renesis WL in the car and running, I have to = 'fess up that I was most remiss in that I didn't get the Renesis weighed = before dumping it in Humphrey. However, I estimate that it will be = just under 3 Kg heavier in the same setup (around 57 Kg with steel sump = & steel inlet manifold * 3.5L oil). Most of the extra weight is in the = front housing which is MUCH thicker, and the rear housing is also a bit = heavier as well (due to the side exhaust port configuration). I did = weigh the housings and everything else when I first got them, but that = was 18 months ago just before I became desperately ill. Can't remember = where I wrote it all down. At any rate, I have had a real good look - (somebody else asked me = last week) - and it would be possible with judicious use of a mill to = get rid of most of that extra weight on the front housing. There are = lots of little lumps of cast iron that hang off everywhere, & a = considerable amount could be taken off where the water pump bolts up if = one were to use an EWP (Shock, Horror Batman! Not an EWP - they don't = work!!). =20 But then again, the Renesis has a really neat front cover with an = integral water pump (see pix in following email) which all ends up much = lighter that the old style front cover & water pump combo, so it would = all probably end up line ball as far as weight goes. However, by = machining back the cast iron water pump flange, and substituting an = alloy spacer to bring it all back in line with the rest of the front = housing surface, you could have the best of both worlds. Same goes for = the oil pump boss which is nearly an extra inch thick. All depends on = how determined you are. =20 Of course, alloy end housings will eventually make all this = un-necessary, although don't hold you breath - side exhaust port end = plates might be a while (seeing that certain people are insisting on the = PP route). Interestingly, as I mentioned before, by feel - (I've sort = of developed a pretty good dyno in my backside over the years) - the = engine appears to go nearly as hard as a 12A twin rotor that originally = came in the car, albeit not as smoothly low down. Above 5,000, it is = as smooth as any 12A RX7 I have ever driven.=20 It also stands to reason as the 4 port Renesis is rated at 200 BHP @ = 7,500 RPM, the original 12A was rated @ 125 BHP, and this WL is not = blowing through a cat or an 86 dB muffler either. So I'd sort of expect = it to make at least 100 BHP per rotor at the same RPM - possibly more = as the rotor is being fed by the two big end ports, not one big one and = one teeny weeny small one. When I get it dyno'd in a couple of weeks, = I'll know for sure. Stay tuned ... And in case you are wondering why I'm using steel inlet manifolds at = the moment, I can fabricate them in house, and the materials are = cheap, and I don't have a TIG, and they are going in cars at the = moment, so weight is not a really critical issue. Once I work out the = exact lengths and sizes, I'll have a professional job done in alloy by = my fabricator mate. =20 Cheers, Leon ----- Original Message -----=20 From: Finn Lassen=20 To: Rotary motors in aircraft=20 Sent: Friday, August 19, 2005 12:19 PM Subject: [FlyRotary] Re: Antipodean Single Rotor Report was Re: = [FlyRotary] Re: Single rotor engine assembled- this is not a drill Really neat! Do you by any chance have weights? Long block, = installed, with oil and coolant, etc. Finn -------------------------------------------------------------------------= ----- -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_001A_01C5A4BD.A4732170 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
----- Original Message -----
From:=20 Leon=20 Promet
Sent: Friday, August 19, 2005 = 6:12=20 AM
Subject: [FlyRotary] Re: = Antipodean=20 Single Rotor Report
Hi Leon,
 
it is good to hear how the one rotor = is running.=20 I had mine run so far up to 5000RPM and it is running pretty smooth, = even so=20 it is only analytically balanced. Dynamic balancing will come later. = How is=20 the idle with the big Webers? I have not picked a carb yet, mainly = because I=20 have only one port (PP), and I am also trying to get the final = configuration=20 side housings finished first.
Attached is a picture as it is = running=20 today.
 
Richard Sohn
N-2071U
 
 
 

Hi Finn,
 
Thanks for the compliment.  Much = appreciated=20 - acknowledgement,  let alone praise & approbation seem to be = pretty=20 thin on the ground from downunder!!  The silence is deafening!!=20 (}:>^). Maybe I've just stolen somebody's thunder??  The = REW WL=20 weighed in @ 54.5 Kg bare,  with a steel sump (cut & shut 12A = RX7),  steel inlet manifold,  and 3.5L of oil (see=20 pic).
 
In my rush to get the Renesis = WL in the=20 car and running,  I have to 'fess up that I was most remiss in = that I=20 didn't get the Renesis weighed before dumping it in Humphrey. =20 However,  I estimate that it will be just under 3 Kg heavier = in the=20 same setup (around 57 Kg with steel sump & steel inlet manifold * = 3.5L=20 oil).  Most of the extra weight is in the front housing which is = MUCH=20 thicker, and the rear housing is also a bit heavier as well (due to = the side=20 exhaust port configuration).  I did weigh the housings and = everything=20 else when I first got them,  but that was 18 months ago just = before I=20 became desperately ill.  Can't remember where I wrote it=20 all down.
 
At any rate, I have had a real good = look -=20 (somebody else asked me last week) - and it would be possible = with=20 judicious use of a mill to get rid of most of that extra weight on the = front=20 housing.  There are lots of little lumps of cast iron that hang = off=20 everywhere,  & a considerable amount could be taken off where = the=20 water pump bolts up if one were to use an EWP (Shock, Horror = Batman!  Not=20 an EWP - they don't work!!). 
 
But then again,  the Renesis has = a really=20 neat front cover with an integral water pump (see pix in following=20 email)  which all ends up much lighter that the old style front = cover=20 & water pump combo,  so it would all probably end up line = ball as far=20 as weight goes.  However,  by machining back the cast iron = water=20 pump flange, and substituting an alloy spacer to bring it all = back in=20 line with the rest of the front housing surface,  you could have = the best=20 of both worlds.  Same goes for the oil pump boss which = is nearly an=20 extra inch thick.  All depends on how determined you are. =20
 
Of course,  alloy end housings = will=20 eventually make all this un-necessary,  although don't hold you = breath -=20 side exhaust port end plates might be a while (seeing that certain = people are=20 insisting on the PP route).  Interestingly,  as I = mentioned=20 before,  by feel - (I've sort of developed a pretty good dyno in = my=20 backside over the years) - the engine appears to go nearly as hard as = a 12A=20 twin rotor that originally came in the car,  albeit not as = smoothly low=20 down. Above 5,000,  it is as smooth as any 12A RX7 I = have ever=20 driven. 
 
It also stands to reason as the 4 = port Renesis is=20 rated at 200 BHP @ 7,500 RPM,  the original 12A was rated @ = 125=20 BHP,  and this WL is not blowing through a cat or an 86 dB = muffler=20 either.  So I'd sort of expect it to make at least 100 BHP per=20 rotor at the same RPM -  possibly more as the rotor is being = fed by=20 the two big end ports,  not one big one and one teeny weeny small = one.  When I get it dyno'd in a couple of weeks,  I'll know = for=20 sure.  Stay tuned ...
 
And in case you are wondering why I'm = using steel=20 inlet manifolds at the moment,  I can fabricate them in = house, =20 and the materials are cheap,  and I don't have a TIG,  and = they are=20 going in cars at the moment, so weight is not a really critical=20 issue.  Once I work out the exact lengths and sizes,  I'll=20 have a professional job done in alloy by my fabricator = mate. =20
 
Cheers,
 
Leon
----- Original Message -----
From:=20 Finn=20 Lassen
To: Rotary motors in = aircraft=20
Sent: Friday, August 19, 2005 = 12:19=20 PM
Subject: [FlyRotary] Re: = Antipodean=20 Single Rotor Report was Re: [FlyRotary] Re: Single rotor engine = assembled-=20 this is not a drill

Really neat! Do you by any chance have weights? Long block, = installed,=20 with oil and coolant, etc.

Finn

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Homepage:  http://www.flyrotary.com/
Archive and=20 UnSub:  =20 http://mail.lancaironline.net/lists/flyrotary/
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