X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail16.syd.optusnet.com.au ([211.29.132.197] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTPS id 2639818 for flyrotary@lancaironline.net; Thu, 10 Jan 2008 16:35:09 -0500 Received-SPF: pass receiver=logan.com; client-ip=211.29.132.197; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-79-144.dsl.nsw.optusnet.com.au [220.236.79.144]) by mail16.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id m0ALYMP6001190 for ; Fri, 11 Jan 2008 08:34:24 +1100 Message-ID: <002501c853d0$92ccafd0$904fecdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: URL for HushPower Date: Fri, 11 Jan 2008 07:34:24 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0022_01C85424.636DB870" 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-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0022_01C85424.636DB870 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Ed, I know - I seen that smiley face. Still looking for photos. George I understand, George. Was pulling your leg a bit. Still looking = forward to the results when you get it there. Ed ----- Original Message -----=20 From: George Lendich=20 To: Rotary motors in aircraft=20 Sent: Thursday, January 10, 2008 2:34 AM Subject: [FlyRotary] Re: URL for HushPower Ed, Indeed talk is cheap, however I've had to spend a bit so far and my = poor allowance only goes so far. I've been bucking for an increase but = the boss ( she who must be obeyed) won't give me one. The problem is = I've still got two apprentices living at home - you know family first = etc. I will get onto it soon though, but I haven't got a single engine = complete to test it on - I designed it for the single but with slight = mods it will also do the 2 rotor. You were on the right track Ed, but you can't put exposed edges to = the rotary exhaust - I see the holes in the cones as exposed edges. I have some photo's somewhere but can't find them, as soon as I do I = will post them. It does look spectacular!! George ( down under) Hey, George Talk is cheap {:>), I want to know when we get to the meaty part = about how well it works? I've done my experimenting with exhausts - every time I got one = part of the problem fixed - like sound loudness, I experienced a = failure/draw back someplace else - of course, could just be my = ineptitude. I really thought I had it when I put the 1/8" thick discs = in the tubes - it did really knock the sound down, but the exhaust = pulses broke the welds loose and the discs spun fast enough to give the = exhaust a turbine sound of its ownl {:>).=20 Looking forward to seeing the results, George Ed. ----- Original Message -----=20 From: George Lendich=20 To: Rotary motors in aircraft=20 Sent: Wednesday, January 09, 2008 6:58 PM Subject: [FlyRotary] Re: URL for HushPower Ed, I believe if Dave Leonard can now 'see the light' through the = muffler - it may be an indicator that the sound waves have broken = through the joining cones. In any event it will only get louder at the = passage gets bigger. I figured this would be the weakest link in the HushPower = design as it concentrates all the energy into the smallest area, holes = in the cones also weaken the area - not so with our design. George ( down under) Ed, Reflective cone theory is what Bill Jepson and I have designed = into our joint venture exhaust design - although I haven't finished it = so I don't know how well it works. The principle is to maintain a clear passage for the exhaust = flow but redirect the sound waves (which are energy) therefore turning = the sound into heat. In our design the heat is dissipated with cool air = flow through the exhaust and further cool air around the exhaust. However this is not a cheap exhaust to make, as mine is = assembled out of a number of cones ( 1.6mm SS). I think the cost of the = cones came to $200 and then there's the welding. There is also the fact = that it is also not light because of the thickness of the material. The bottom line is that cones by their nature redirect sound = energy into heat. The idea is to not have a direct exit for the sound = energy - this has been achieved in this design by having the sound waves = inter the center of a cone which is blocked-off and is redirected = through the holes and redirected out.=20 So the theory in this design ( HushPower) is sound - excuse = the pun. The packing material merely protects the light outer skin. = There will be a tremendous amount of heat in the inner chambers so I = don't know how long they will last, maybe there thick enough to take it = ? However if their cheap enough just replace them. George ( down under) From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Thursday, January 10, 2008 4:34 AM Subject: [FlyRotary] URL for HushPower It looks like Hushpower has been spun off from FlowMaster. = Here is the URL for the Hushpower site. http://www.hushpower.com/technology.html Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html -------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG Free Edition.=20 Version: 7.5.516 / Virus Database: 269.17.13/1214 - Release = Date: 8/01/2008 1:38 PM ---------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG Free Edition.=20 Version: 7.5.516 / Virus Database: 269.17.13/1214 - Release = Date: 8/01/2008 1:38 PM -------------------------------------------------------------------------= - No virus found in this incoming message. Checked by AVG Free Edition.=20 Version: 7.5.516 / Virus Database: 269.17.13/1214 - Release Date: = 8/01/2008 1:38 PM -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG Free Edition.=20 Version: 7.5.516 / Virus Database: 269.17.13/1214 - Release Date: = 8/01/2008 1:38 PM ------=_NextPart_000_0022_01C85424.636DB870 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
 
Ed,
I know - I seen that smiley = face.
Still looking for photos.
George
 
I understand, George.  Was pulling your = leg a=20 bit.  Still looking forward to the results when you get it=20 there.
 
Ed
----- Original Message -----
From:=20 George Lendich
To: Rotary motors in = aircraft=20
Sent: Thursday, January 10, = 2008 2:34=20 AM
Subject: [FlyRotary] Re: URL = for=20 HushPower

Ed,
Indeed talk is cheap, however I've = had to spend=20 a bit so far and my poor allowance only goes so far. I've been = bucking for=20 an increase but the boss ( she who must be obeyed) won't give me = one. The=20 problem is I've still got two apprentices living at home - you know = family=20 first etc.
 
I will get onto it soon though, but = I haven't=20 got a single engine complete to test it on - I designed it for the = single=20 but with slight mods it will also do the 2 rotor.
 
You were on the right track Ed, but = you can't=20 put exposed edges to the rotary exhaust - I see the holes in the = cones as=20 exposed edges.
 
I have some photo's somewhere but = can't find=20 them, as soon as I do I will post them. It does look=20 spectacular!!
George ( down under)

  Hey, George
 
Talk is cheap {:>), I want to know when = we get to=20 the meaty part about how well it works?
 
I've done my experimenting with exhausts - = every=20 time I got one part of the problem fixed - like sound loudness, I=20 experienced a failure/draw back someplace else - of course, could = just be=20 my ineptitude.  I really thought I had it when I put the 1/8" = thick=20 discs in the tubes - it did really knock the sound down, but the = exhaust=20  pulses broke the welds loose and the discs spun fast enough = to give=20 the exhaust a turbine sound of its ownl {:>).
 
Looking forward to seeing the results,=20 George
 
Ed.
----- Original Message ----- =
From:=20 George Lendich =
To: Rotary motors in = aircraft=20
Sent: Wednesday, January = 09, 2008=20 6:58 PM
Subject: [FlyRotary] Re: = URL for=20 HushPower

 
Ed,
 I believe if Dave = Leonard can now=20 'see the light' through the muffler - it may be an indicator = that the=20 sound waves have broken through the joining cones. In any = event it=20 will only get louder at the passage gets bigger.
I figured this would be the = weakest link=20 in the HushPower design as it concentrates all the energy into = the=20 smallest area, holes in the cones also weaken the = area - not=20 so with our design.
George ( down under)
 
Ed,
Reflective cone theory is = what Bill=20 Jepson and I have designed into our joint venture exhaust = design  - although I haven't finished it so I = don't=20 know how well it works.
The principle is to maintain = a clear=20 passage for the exhaust flow but redirect the sound waves = (which are=20 energy) therefore turning the sound into heat. In our = design the=20 heat is dissipated with cool air flow through the exhaust and = further=20 cool air around the exhaust.
 
However this is not a cheap = exhaust to=20 make, as mine is assembled out of a number of cones ( 1.6mm = SS). I=20 think the cost of the cones came to $200 and then there's the = welding.=20 There is also the fact that it is also not light because of = the=20 thickness of the material.
 
The bottom line is that cones = by their=20 nature redirect sound energy into heat. The idea is to not = have a=20 direct exit for the sound energy - this has been achieved in = this=20 design by having the sound waves inter the center of a cone = which is=20 blocked-off and is redirected through the holes and redirected = out.=20
 
So the theory in this design = ( HushPower)=20 is sound - excuse the pun. The packing material merely = protects the=20 light outer skin. There will be a tremendous amount of heat in = the=20 inner chambers so I don't know how long they will last, maybe = there=20 thick enough to take it ? However if their cheap enough just = replace=20 them.
 
George ( down = under)
 
 
From:=20 Ed Anderson =
To: Rotary motors in = aircraft
Sent: Thursday, = January 10,=20 2008 4:34 AM
Subject: [FlyRotary] = URL for=20 HushPower

It looks like Hushpower has been = spun off from=20 FlowMaster.  Here is the URL for the Hushpower=20 site.
 
http://www.hushpower.co= m/technology.html
 
Ed
Ed Anderson
Rv-6A N494BW Rotary=20 Powered
Matthews, NC
eanderson@carolina.rr.comhttp://www.andersonee.com
http:/= /members.cox.net/rogersda/rotary/configs.htm#N494BW
http://www.dmack.net/mazda= /index.html

No virus found in this incoming message.
Checked = by AVG=20 Free Edition.
Version: 7.5.516 / Virus Database: = 269.17.13/1214=20 - Release Date: 8/01/2008 1:38 PM

No virus found in this incoming message.
Checked by = AVG Free=20 Edition.
Version: 7.5.516 / Virus Database: 269.17.13/1214 = -=20 Release Date: 8/01/2008 1:38 PM

No virus found in this incoming message.
Checked by AVG = Free=20 Edition.
Version: 7.5.516 / Virus Database: 269.17.13/1214 - = Release=20 Date: 8/01/2008 1:38 PM

No virus found in this incoming message.
Checked by AVG Free = Edition.
Version: 7.5.516 / Virus Database: 269.17.13/1214 - = Release Date:=20 8/01/2008 1:38 PM
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