X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail18.syd.optusnet.com.au ([211.29.132.199] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTPS id 2345136 for flyrotary@lancaironline.net; Sat, 22 Sep 2007 01:21:30 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.199; envelope-from=lendich@optusnet.com.au Received: from george (d220-237-243-228.dsl.nsw.optusnet.com.au [220.237.243.228]) by mail18.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id l8M5Kicw003823 for ; Sat, 22 Sep 2007 15:20:45 +1000 Message-ID: <001801c7fcd8$592b64a0$e4f3eddc@george> From: "George Lendich" To: "Rotary motors in aircraft" Subject: Area of a circle Date: Sat, 22 Sep 2007 15:20:53 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01C7FD2C.2A1FBD60" 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-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0015_01C7FD2C.2A1FBD60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Chaps,=20 I am trying to work out the area of carb inlet as it is opened = incrementally. This involves the overlapped portion of two circles, as well as, a = circle cut into slices ( straight cuts). This should give me an indication of the linier or otherwise, volume of = air as it sweeps through the carb. This then should indicate the shape of the grind of the needle in = maintaining continuity of the mixture ratio of fuel to air. Any helpers with this one!? George (down under) ------=_NextPart_000_0015_01C7FD2C.2A1FBD60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Chaps,

I am trying to work out the area of = carb inlet as=20 it is opened incrementally.

This involves the overlapped portion of = two=20 circles, as well as, a circle cut into slices ( straight = cuts).

This should give me an indication of = the linier or=20 otherwise, volume of air as it sweeps through the carb.

This then should indicate the shape of=20 the grind of the needle in maintaining continuity of the mixture = ratio of=20 fuel to air.

Any helpers with this = one!?

George (down = under)

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