Return-Path: Received: from sccrmhc13.comcast.net ([204.127.202.64] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2904471 for flyrotary@lancaironline.net; Wed, 24 Dec 2003 19:40:37 -0500 Received: from rv8 (12-225-206-211.client.attbi.com[12.225.206.211]) by comcast.net (sccrmhc13) with SMTP id <2003122500385701600ssqv2e> (Authid: n3773@comcast.net); Thu, 25 Dec 2003 00:38:58 +0000 Message-ID: <017b01c3ca7f$7b3d0600$d3cee10c@rv8> Reply-To: "kevin lane" From: "kevin lane" To: "Rotary motors in aircraft" References: Subject: seven degree divergence? Date: Wed, 24 Dec 2003 16:38:54 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0178_01C3CA3C.6B54BD70" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0178_01C3CA3C.6B54BD70 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I keep seeing reference to 7 degree duct divergence, and the carpenter = in me can't figure out how you place a typically straight-sided = protractor against a curve to measure it. anyone know? seems to me = something is missing, such as "per inch" so that the curve can be broken = down into a series of small triangles. Kevin Lane Portland, OR e-mail-> n3773@comcast.net web-> http://home.comcast.net/~n3773 (browse w/ internet explorer) I also thought a 7 degree duct was a simple straight sided duct = with sides that diverge at a 7 degree angle from the centerline. Maybe = I'm more confused than I though : -) ------=_NextPart_000_0178_01C3CA3C.6B54BD70 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I keep seeing reference to 7 degree = duct=20 divergence, and the carpenter in me can't figure out how you place a = typically=20 straight-sided protractor against a curve to measure it.  anyone=20 know?  seems to me something is missing, such as "per inch" so that = the=20 curve can be broken down into a series of small triangles.
Kevin Lane  Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773
(browse=20 w/ internet explorer)
 
 
 
I also thought a 7 degree duct = was a=20 simple straight sided duct with sides that diverge at a 7 degree = angle=20 from the centerline.  Maybe I'm more confused than I though = :=20 = -)
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