Return-Path: Received: from [65.54.168.121] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 795868 for flyrotary@lancaironline.net; Wed, 16 Mar 2005 09:40:25 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.168.121; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 16 Mar 2005 06:39:40 -0800 Message-ID: Received: from 4.174.2.222 by BAY3-DAV17.phx.gbl with DAV; Wed, 16 Mar 2005 14:39:37 +0000 X-Originating-IP: [4.174.2.222] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: SAG Report Date: Wed, 16 Mar 2005 09:39:35 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0067_01C52A0C.10926190" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Wed, 16 Mar 2005 09:39:35 -0500 X-OriginalArrivalTime: 16 Mar 2005 14:39:40.0180 (UTC) FILETIME=[FC245540:01C52A35] This is a multi-part message in MIME format. ------=_NextPart_000_0067_01C52A0C.10926190 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Since you are flying on B controller, hit the coil test switch (lead = then trail). If no sag on one or the other, you may have a bad coil or = plug. =20 Tracy Speaking of SAG, I had a strange experience during today's flight = which might be the opposite of SAG.=20 Everything seemed normal. I was boosting about 38 MAP at 4500 rpm and = 5000'. I was gently adding a little throttle to increase speed for = another ASI calibration when I felt a surge of acceleration way beyond = what I'd expect for the minor throttle adjustment I'd made. This was = literally a shove in the back. It lasted maybe 2 seconds, then the = engine carried on at the new power level. RPM jumped up a couple of = hundred. I glanced down at the MAP. It had dropped to 34. My best guess = is that I'd been running with a gummed up plug which suddenly cleared = and gave me added power. I'd appreciate any opinions on this. Now if I could just make it happen again - and again..... John (getting relaxed enough to test the airframe) ------=_NextPart_000_0067_01C52A0C.10926190 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Since you are flying on B controller, hit the coil test switch = (lead then=20 trail). If no sag on one or the other, you may have a bad coil or=20 plug.

Tracy

Speaking of SAG, I had = a strange=20 experience during today's flight which might be the opposite of SAG.=20

Everything seemed normal. I was boosting about = 38 MAP=20 at 4500 rpm and 5000'. I = was gently adding a little throttle to = increase speed=20 for another ASI calibration when I felt a surge of acceleration way = beyond=20 what I'd expect for the minor throttle adjustment I'd made. This=20 was literally a shove in = the back.=20 It lasted maybe 2 seconds, then the engine carried on at the new power = level. RPM jumped up a couple of = hundred.=20 I glanced down at the MAP. It had dropped to 34. My best guess = is that=20 I'd been running with a gummed up plug which suddenly cleared and gave = me=20 added power.

I'd appreciate any = opinions on=20 this.

Now=20 if I could just make it happen again - and = again.....

John=20 (getting relaxed enough to test the=20 airframe)

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