X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2607161 for flyrotary@lancaironline.net; Thu, 20 Dec 2007 14:01:48 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta05.mail.rr.com with SMTP id <20071220190110.IMAO26118.cdptpa-omta05.mail.rr.com@edward2> for ; Thu, 20 Dec 2007 19:01:10 +0000 Message-ID: <002001c8433a$b6c9c5e0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] superchargers electric Date: Thu, 20 Dec 2007 14:01:23 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01C84310.CDC1B160" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_001D_01C84310.CDC1B160 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Well, I have already confessed my skepticism - however, its really hard = to say. One thing in their favor, they appear to be using a centrifugal = pump with a scroll diffuser very similar to that on a turbo charger. = Meaning that if indeed they can spin it fast enough it should work. Now = one of the individuals on their forum indicated they measured its spin = at 25000 rpm. That's a bit slow for a turbocharger but, it may indeed = be enough to produce some boost. =20 We all know that motors and electric devices have made some major = improvements in the last decade or so, but still a 1 1/2 HP electric = motor just seems a bit on the large size physically and what really = bothers me is no specifications on their web site. Hard to assess = and/or refute data you don't have {:>). But, what really bothers me is I just don't see how you could even = manufacture the scroll housing and compressor blades much less a 1 - 1 = 1/2HP electric motor and sell it for $99.00 - even if made in China. I = really want to believe - but, its sure is hard to find any data to help = that belief along {:>). I guess IF I really thought it was credible, I would have my $99.00 = check in the mail and I don't. Ed ----- Original Message -----=20 From: John Downing=20 To: Rotary motors in aircraft=20 Sent: Thursday, December 20, 2007 1:22 PM Subject: [FlyRotary] superchargers electric Ed, this thread is starting to look like the electric water pump = thread that can't work. I just have a feeling that your inquisitive = mind is going to go somewhere with this one. JohnD ------=_NextPart_000_001D_01C84310.CDC1B160 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Well, I have already confessed my skepticism - = however,=20 its really hard to say.  One thing in their favor, they appear to = be using=20 a centrifugal pump with a scroll diffuser very similar to that on a = turbo=20 charger.  Meaning that if indeed they can spin it fast enough it = should=20 work.  Now one of the individuals on their  forum indicated = they=20 measured its spin at 25000 rpm.  That's a bit slow for a = turbocharger but,=20 it may indeed be enough to produce some boost. 
 
We all know that motors and electric devices = have made=20 some major improvements in the last decade or so, but still a 1 1/2 HP = electric=20 motor just seems a bit on the large size physically and what really = bothers me=20 is no specifications on their web site.  Hard to assess and/or = refute data=20 you don't have {:>).
 
But, what really bothers me is I just don't see = how you=20 could even manufacture the scroll housing and compressor blades much = less a 1 -=20 1 1/2HP electric motor and sell it for $99.00 - even if made in = China.  I=20 really want to believe - but, its sure is hard to find any data to help = that=20 belief along {:>).
 
I guess IF I really thought it was credible, I = would have=20 my $99.00 check in the mail and I don't.
 
Ed
----- Original Message -----
From:=20 John=20 Downing
Sent: Thursday, December 20, = 2007 1:22=20 PM
Subject: [FlyRotary] = superchargers=20 electric

Ed, this thread is starting to look = like the=20 electric water pump thread that can't work.  I just have a = feeling that=20 your inquisitive mind is going to go somewhere with this one. =20 JohnD
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