X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao105.cox.net ([68.230.241.41] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3887500 for flyrotary@lancaironline.net; Thu, 15 Oct 2009 21:19:32 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.41; envelope-from=alventures@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao105.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20091016011859.FJWD21106.fed1rmmtao105.cox.net@fed1rmimpo01.cox.net> for ; Thu, 15 Oct 2009 21:18:59 -0400 Received: from BigAl ([72.192.133.78]) by fed1rmimpo01.cox.net with bizsmtp id tDJy1c00C1hf1Cg03DJyUq; Thu, 15 Oct 2009 21:18:58 -0400 X-VR-Score: 0.00 X-Authority-Analysis: v=1.0 c=1 a=032uUr897LoA:10 a=Ia-xEzejAAAA:8 a=hLTvwrd6AymUbZ86Rw4A:9 a=4S8nk8DOVq1u3GM2J_JpciUOqcAA:4 a=EzXvWhQp4_cA:10 a=HHF8gdTbAE6Vn9gM:21 a=OpZM4lPgK6sH6gb0:21 a=ZTj72pnmrjRY8AC_ef8A:7 a=Ge2CRwYwTiwvxTtIskYPqClYtw0A:4 X-CM-Score: 0.00 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: off subject - dyson fan defies physics Date: Thu, 15 Oct 2009 18:19:34 -0800 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0021_01CA4DC4.0C217B10" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6838 Thread-Index: AcpN5QpZO1SN/8nvTx+HLZ2NiyGHVgAIXUwg In-Reply-To: Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_0021_01CA4DC4.0C217B10 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable So-o-o; You use your engine to drive a large squirrel cage blower (centrifugal fan); which is more efficient than an axial flow fan (propeller); and then you feed that to a large Dyson ring; which then provides 15 times the thrust you could get from your prop. Why, this = could make the turbofan jet obsolete:-). =20 Al =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Thursday, October 15, 2009 2:15 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: off subject - dyson fan defies physics =20 Well, I must confess to being skeptical about such claims and when there appears to be a clear attempt to mislead, it heightens my doubts even = more. =20 Here is what I found, first, it DOES have a motor and Fan Blade - so why = the claim it is "bladeless" . They appear to channel air up to the ring and with air flowing from the slits (air motion caused by the fan blades in = the base of the unit) causes external air to be channeled along with the fan induced flow. A Bunsen burner does the same thing in principle the hot exhausting air pulls in fresh air at the base. Now the real question is = how this fan induced flow is capable of inducting a 15 time greater flow of air. The principal would appear to be the same as exhaust augmentation = with a lot less energy. So don't see any deifying of the laws of physics so = far. =20 But, if it works for the dyson fan, then why not get 15 times {:>) = your current cooling air flow sitting on the ground with your engine = running?: =20 =20 ------=_NextPart_000_0021_01CA4DC4.0C217B10 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

So-o-o; You use your engine to = drive a large squirrel cage blower (centrifugal fan); which is more efficient than an = axial flow fan (propeller); and then you feed that to a large Dyson ring; = which then provides 15 times the thrust you could get from your prop.  Why, = this could make the turbofan jet obsoleteJ.

 

Al

 

-----Original = Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Thursday, October = 15, 2009 2:15 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = off subject - dyson fan defies physics

 

Well, I must = confess to being skeptical about such claims and when there appears to be a clear = attempt to mislead, it heightens my doubts even more.

 

Here is what I = found, first, it DOES have a motor and Fan Blade – so why the claim it is “bladeless” .  They appear to channel air up to the = ring and with air flowing from the slits (air motion caused by the fan blades in = the base of the unit) causes external air to be channeled along with the fan induced flow.  A Bunsen burner does the same thing in principle the = hot exhausting air pulls in fresh air at the base.  Now the real = question is how this fan induced flow  is capable of inducting a 15 time = greater flow of air.  The principal would appear to be the same as exhaust = augmentation with a lot less energy.  So don’t see any deifying of the = laws of physics so far.

 

 But, =  if it works for the dyson fan, then why not get 15 times {:>) your current = cooling air flow sitting on the ground with your engine = running?:

 

 

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