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 4.3c5) with ESMTP id 936964 for flyrotary@lancaironline.net; Sun, 08 May 2005 23:23:43 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-189-178.carolina.res.rr.com [24.74.189.178]) by ms-smtp-04-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j493MuL5025371 for ; Sun, 8 May 2005 23:22:57 -0400 (EDT) Message-ID: <001001c55446$651e84f0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: 4-port intake measurements Date: Sun, 8 May 2005 23:22:56 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000D_01C55424.DDD3AC80" 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_01C55424.DDD3AC80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageYou get an "A" for attention to detail and I get an "F" for = dividing by 2 instead of 3 {:>). 7000/3 =3D 2333. 60/2333 =3D 0.0257 = , 0.0257/6 =3D .00428 between pulses. Length =3D .00428 *1100 =3D = 4.7 ft/2 =3D 2.35 ft or 28.2 " Yep, still a bit long for your needs. =20 Ed ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Sunday, May 08, 2005 10:20 PM Subject: [FlyRotary] Re: 4-port intake measurements For 7000 rpm 60/3500 =3D .017 sec. .017/6 =3D .00286 sec or 2.86 = millsec. .00286 *1100 =3D 3.14 ft or 1/2 of that would be 1.5 ft or = 18" for a runner length, at least if my math is correct. This is only = an approximation but should give you an idea of lengths. Hi Ed, Was this a test to see if I was paying attention? Shouldn't this be = 7000 rpm 60/2333=3D .026 sec ? Either way, these lengths seem mightly = long for the cowl space I have. =20 Thanks for taking a look at this. I'm not sure what I'll do, but I = also need to get rid of this #%&@ oil leak first. I made some progress = on it, and hope I've got it beat now. Won't know how wrong I am until = next time I fly. =20 Rusty (not kidding about the supercharger) ------=_NextPart_000_000D_01C55424.DDD3AC80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
You get an "A" for attention to detail = and I get an=20 "F" for dividing by 2 instead of 3 {:>).  7000/3 =3D = 2333.  =20 60/2333 =3D 0.0257 ,  = 0.0257/6 =3D .00428=20 between pulses.  Length =3D   .00428 *1100  =3D 4.7 = ft/2 =3D 2.35=20 ft or 28.2 "  Yep, still a bit long for your needs. =20
 
Ed
 
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Sunday, May 08, 2005 = 10:20 PM
Subject: [FlyRotary] Re: 4-port = intake=20 measurements

For 7000 rpm 60/3500 =3D .017 sec.   .017/6 =3D = .00286 sec or=20 2.86 millsec.   .00286 *1100 =3D 3.14 ft or 1/2 of that = would be 1.5=20 ft or 18" for a runner length, at least if my math is correct.  = This is=20 only an approximation but should give you an idea of=20 lengths.
 
 
Hi=20 Ed,
 
Was this a=20 test to see if I was paying attention?  Shouldn't this be 7000 = rpm=20 60/2333=3D .026 sec ?  Either way, these lengths seem mightly = long for the=20 cowl space I have. 
 
Thanks for=20 taking a look at this.  I'm not sure what I'll do, but I also = need to get=20 rid of this #%&@ oil leak first.  I made some progress on it, = and=20 hope I've got it beat now.  Won't know how wrong I am until next = time I=20 fly. 
 
Rusty (not=20 kidding about the supercharger)
 
 
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