X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from bay0-omc1-s41.bay0.hotmail.com ([65.54.246.113] verified) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1316681 for flyrotary@lancaironline.net; Wed, 26 Jul 2006 10:04:24 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.246.113; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.250.83]) by bay0-omc1-s41.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 26 Jul 2006 06:59:48 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 26 Jul 2006 06:59:48 -0700 Message-ID: Received: from 4.171.129.65 by BAY115-DAV11.phx.gbl with DAV; Wed, 26 Jul 2006 13:59:44 +0000 X-Originating-IP: [4.171.129.65] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: 20B back together Date: Wed, 26 Jul 2006 09:59:35 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0087_01C6B09A.3310F7C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.20.0029.3000 Seal-Send-Time: Wed, 26 Jul 2006 09:59:35 -0400 X-OriginalArrivalTime: 26 Jul 2006 13:59:48.0186 (UTC) FILETIME=[C1B4C3A0:01C6B0BB] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_0087_01C6B09A.3310F7C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The tear down and apex seal replacement job on my 20B turned out to be a = 6 day ordeal instead of a quick 2 hour job but it's done and I can get = back to finishing the RV-8 again. Most of the problems were caused by = inexperience (haven't had to tear down a rotary in over 12 years) and = the fact that this was not a standard 20B but a mongrel built out of = mostly 13B parts. I went ahead and replaced the stock coolant O-rings = with TES parts while replacing the Hurley apex seals. =20 Did a careful weighing of parts to see exactly how much more the 20B = weighs compared to the 2nd gen 13B. Difference is 70 lbs, about 3 = pounds more than I previously thought. This represents a 22% gain in = installed weight compared to a 50% increase in power. Not a bad trade. Got up early this AM and launched for OSH but my PDA based GPS went dead = 11 minutes after take-off. Futzed with it for a while but no joy. = Returned to Shady Bend and found that the battery cover had popped loose = and it shuts down when that happens : ( Put it back on but then found = that it will pop off at the slightest touch. Taped it shut and all = seems well so will try again tomorrow morning. Have to leave early to = get in before field closes for airshow. Tracy (packing old GPS in plane for backup) ------=_NextPart_000_0087_01C6B09A.3310F7C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

The tear down and apex seal replacement job on my 20B turned = out to be=20 a 6 day ordeal instead of a quick 2 hour job but it's done and = I can=20 get back to finishing the RV-8 again. Most of the problems = were=20 caused by inexperience (haven't had to tear down a rotary in over = 12=20 years) and the fact that this was not a standard 20B but a mongrel = built=20 out of mostly 13B parts. I went ahead = and replaced the=20 stock coolant O-rings with TES parts while replacing=20 the Hurley apex seals.

Did a careful weighing of parts to see exactly how much more the = 20B weighs=20 compared to the 2nd gen 13B. Difference is 70 lbs, = about 3=20 pounds more than I previously thought. This represents a 22% gain = in=20 installed weight compared to a 50% increase in power. Not a bad=20 trade.

Got up early this AM and launched for OSH but my PDA based GPS went = dead 11=20 minutes after take-off. Futzed with it for a while but no = joy. =20 Returned to Shady Bend and found that the battery cover had popped loose = and it=20 shuts down when that happens : ( Put it back on but = then found=20 that it will pop off at the slightest touch. Taped it shut and all = seems=20 well so will try again tomorrow morning. Have to leave early to = get in=20 before field closes for airshow.

Tracy (packing old GPS in plane for = backup)

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