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 5.2.16) with ESMTP id 3887515 for flyrotary@lancaironline.net; Thu, 15 Oct 2009 21:35:56 -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 9CE631738F6 for ; Fri, 16 Oct 2009 09:35:21 +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 B016DBEC022 for ; Fri, 16 Oct 2009 09:35:19 +0800 (WST) Message-ID: <3DCD7C03C2B3495F90461E4FDBF52311@ownerf1fc517b8> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: off subject - dyson fan defies physics Date: Fri, 16 Oct 2009 11:35:20 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01CA4E54.BDD8EC90" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-Antivirus: avast! (VPS 091015-0, 10/15/2009), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_000B_01CA4E54.BDD8EC90 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Al, I didn't think of it like that -do you think there might be some merit = in it for Aviation. I know fixed jet cowls do have inlet air sections in = the circumference, for additional airflow. George (down under)=20 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?: ------=_NextPart_000_000B_01CA4E54.BDD8EC90 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Al,

I didn't think of it like that -do you = think there=20 might be some merit in it for Aviation. I know fixed jet cowls do = have=20 inlet air sections in the circumference, for additional = airflow.

George (down under)

So-o-o; = You use=20 your engine to drive a large squirrel cage blower (centrifugal fan); = which is=20 more efficient than an axial flow fan (propeller); and then you feed = that to a=20 large Dyson ring; which then provides 15 times the thrust you could = get from=20 your prop. Why, this could make the turbofan jet=20 obsoleteJ.

Al

-----Original=20 Message-----
From: = Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed = Anderson
Sent: Thursday, October 15, = 2009 2:15=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 Re: off subject - dyson fan defies physics

Well, I=20 must confess to being skeptical about such claims and when there = appears to be=20 a clear attempt to mislead, it heightens my doubts even=20 more.

Here is=20 what I found, first, it DOES have a motor and Fan Blade =96 so why the = claim it=20 is =93bladeless=94 . They appear to channel air up to the ring = and with air=20 flowing from the slits (air motion caused by the fan blades in the = base of the=20 unit) causes external air to be channeled along with the fan induced=20 flow. A Bunsen burner does the same thing in principle the hot=20 exhausting air pulls in fresh air at the base. Now the real = question is=20 how this fan induced flow is capable of inducting a 15 time = greater flow=20 of air. The principal would appear to be the same as exhaust=20 augmentation with a lot less energy. So don=92t see any deifying = of the=20 laws of physics so far.

But, = if=20 it works for the dyson fan, then why not get 15 times {:>) your = current=20 cooling air flow sitting on the ground with your engine=20 running?:

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