X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 1033538 for flyrotary@lancaironline.net; Tue, 14 Mar 2006 07:30:46 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-025-165.carolina.res.rr.com [24.74.25.165]) by ms-smtp-04-eri0.southeast.rr.com (8.13.4/8.13.4) with SMTP id k2ECTvKM004039 for ; Tue, 14 Mar 2006 07:29:59 -0500 (EST) Message-ID: <001001c64763$034a8e70$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: heat output Date: Tue, 14 Mar 2006 07:30:00 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000D_01C64739.1A25CA30" 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 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_000D_01C64739.1A25CA30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Well, not intentionally, Bob. {:>) . Yes, that was an interesting experiment to say the least. After I = had installed the paddle wheel discs in the muffler housing, I fired it = up and went for a flight. After the flight, one of the airport bums = told me that it sounded just like I had a turbine on take off. Well, I = laughed and made reference to the rotary being a poor mans' turbine. = Little did I know at the time, that those paddle wheels had already = broken loose on their shaft and were spinning like mad. =20 While perhaps a "cool" sound, the down side was that the windmilling = discs choked the exhaust flow at around 6000 rpm. Found all of this out = on way down to Tracy. Took it apart there and took all but two discs = out of each tube and then Tracy arc welded the disc to the shaft. They = lasted about two weeks that way before the exhaust pulses pounded them = loose. You could see where the disc has spun as the threads were worn = off the shaft and the insides of the muffler tube was burnished by the = tips of the spinning discs. =20 Guess if I just some way of injecting gasoline between the two discs I = could have had power augmentation {:>) Ed ----- Original Message -----=20 From: Bob Perkinson=20 To: Rotary motors in aircraft=20 Sent: Tuesday, March 14, 2006 2:46 AM Subject: [FlyRotary] Re: heat output Ed didn't you build a turbo in your exhaust system, and Tracy went and = welded it up so that it wouldn't turn? {:>) Bob Perkinson Hendersonville, TN. RV9 N658RP Reserved If nothing changes Nothing changes =20 =20 Thomas, while there is probably more hydrocarbon (fuel) being = ejected from the combustion chamber ports of a rotary than a non-race = reciprocating engine , I think you will find that its already being = burned in the header pipes - that is one of the reasons for the Rotary's = hotter exhaust. So great idea, but I believe you will find its already = ignited in the 1700F+ temps of the exhaust. =20 Humm, so if its already ignited, then all we need to do is shape a = rocket reaction chamber shape and get additional thrust...... On the = other hand, I think a turbo charger would probably be a more effective = use of that exhaust energy. But, that's just my opinion and it might be = interesting to see if any thrust would result. Monty???. Ed=20 ------=_NextPart_000_000D_01C64739.1A25CA30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Well, not intentionally, Bob. = {:>)
 
.  Yes, that was an interesting experiment = to say the=20 least.  After I had installed the paddle wheel discs in the muffler = housing, I fired it up and went for a flight.  After the flight, = one of the=20 airport bums told me that it sounded just like I had a turbine on take=20 off.  Well, I laughed and made reference to the rotary being a poor = mans'=20 turbine.  Little did I know at the time, that those paddle wheels = had=20 already broken loose on their shaft and were spinning like mad. =20
 
While perhaps a "cool" sound, the down side was = that the=20 windmilling discs choked the exhaust flow at around 6000 rpm.  = Found all of=20 this out on way down to Tracy.  Took it apart there and took = all but=20 two discs out of each tube and then Tracy arc welded the disc to the=20 shaft.  They lasted about two weeks that way before the exhaust = pulses=20 pounded them loose.  You could see where the disc has spun as the = threads=20 were worn off the shaft and the insides of the muffler tube was = burnished by the=20 tips of the spinning discs. 
 
Guess if I just some way of injecting gasoline = between the=20 two discs I could have had power augmentation {:>)
 
Ed
----- Original Message -----
From:=20 Bob=20 Perkinson
Sent: Tuesday, March 14, 2006 = 2:46=20 AM
Subject: [FlyRotary] Re: heat=20 output

Ed didn't=20 you build a turbo in your exhaust system, and Tracy went and welded it = up so=20 that it wouldn't turn? {:>)
 

Bob Perkinson
Hendersonville, TN.
RV9 N658RP=20 Reserved
If nothing changes
Nothing = changes
 


 
Thomas, while there is probably more = hydrocarbon=20 (fuel) being ejected from the combustion chamber ports of a rotary = than a=20 non-race  reciprocating engine , I think you will find that its = already=20 being burned in the header pipes - that is one of the reasons for = the=20 Rotary's hotter exhaust.  So great idea, but I believe you will = find=20 its already ignited in the 1700F+ temps of the exhaust.  =
 
Humm, so if its already ignited, then all we = need to=20 do is shape a rocket reaction chamber shape and get additional=20 thrust......  On the other hand, I think a turbo charger would = probably=20 be a more effective use of that exhaust energy.  But, that's = just my=20 opinion and it might be interesting to see if any thrust would = result. =20 Monty???.
 
Ed
 
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