X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 06 Jun 2012 08:28:20 -0400 Message-ID: X-Original-Return-Path: Received: from nm5-vm1.bullet.mail.ne1.yahoo.com ([98.138.91.32] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with SMTP id 5582029 for lml@lancaironline.net; Tue, 05 Jun 2012 20:36:40 -0400 Received-SPF: none receiver=logan.com; client-ip=98.138.91.32; envelope-from=egraylaw@swbell.net Received: from [98.138.226.179] by nm5.bullet.mail.ne1.yahoo.com with NNFMP; 06 Jun 2012 00:36:04 -0000 Received: from [68.142.200.226] by tm14.bullet.mail.ne1.yahoo.com with NNFMP; 06 Jun 2012 00:36:04 -0000 Received: from [66.94.237.96] by t7.bullet.mud.yahoo.com with NNFMP; 06 Jun 2012 00:36:03 -0000 Received: from [127.0.0.1] by omp1001.access.mail.mud.yahoo.com with NNFMP; 06 Jun 2012 00:36:03 -0000 X-Yahoo-Newman-Id: 950817.1477.bm@omp1001.access.mail.mud.yahoo.com Received: (qmail 91797 invoked from network); 6 Jun 2012 00:36:03 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=swbell.net; h=DKIM-Signature:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Reply-To:From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:Thread-Index:Content-Language; b=ssEf7rnszXzczFB5tmz7/eoaUDLybgwLm4eCFOVQIVOu7oQKDLO3oTydAgSyRQX56Vsu5serYKMkeUdYsthnVz+/HPaWrPXdnWQSc36qxn8zMnJc80Qq39YQB+JgQ6lruncVD7poqPU40VUmq4a9Uya+qCA+aJpN1zsJyy9qfOM= ; X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: lSTxUaoVM1lhQgK5cJmVKY_l570GrNVPLDOv3f2rUK9oB9Y wDBEG8iOusOeLpPTlFDqLpureXF4vyt9DEuzr6RZ7u1q0Cw1YkVXlTCLqSoI U1kzXr3KtaqX2IU77OfueWnkl0Ib.IIJmfRYwxallCp20PrrOM83hOkHJjn8 1aDn8V1oF3eGthHaIlm13cKVSZDGb7FAwHgVhiCP4wX.98WrR1agIxMGipmG UqDw8.6OGS6SMv4.snLN3lXiemPjn6kEDS3_ojEkqL63x27jBVls_SkFNEr5 KYGJh4QHmszg64.u4mz.wJy2bpY_GQJdj4O1jt22bksbnxlmC1ZHmGuBrkKn 4GXKTraSb1D5_Zwa5qvBwxHLT1KJ4gb6VMfakUKbBkK.vftJ0zBXI2jCFSkX MLxxqlPv76Jj.NErRPclP35Chc3LF5fHhPXo4sAvlsRky X-Yahoo-SMTP: 7MzGrViswBB3AheNxBPptcOw9pGuT47xSdXn7qNf1as- Received: from GerryGrayHP (egraylaw@99.98.246.182 with login) by smtp106.sbc.mail.mud.yahoo.com with SMTP; 06 Jun 2012 00:36:03 +0000 UTC Reply-To: From: "Ed Gray" X-Original-To: "Lancair Mailing List" Subject: NOSE GEAR AND CANOPY LATCH X-Original-Date: Tue, 5 Jun 2012 19:35:56 -0500 X-Original-Message-ID: <010e01cd437c$571e1f50$055a5df0$@swbell.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_010F_01CD4352.6E4A6140" X-Mailer: Microsoft Outlook 14.0 Thread-Index: Ac1DdYmDgvJaZTmsSFaCTZc8wX/QJA== Content-Language: en-us This is a multipart message in MIME format. ------=_NextPart_000_010F_01CD4352.6E4A6140 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Running retraction tests on my 360, the nose gear door partially closed early, blocking the nose gear retraction. Since the book described it being held open by the coil spring, I didn't understand. Then I found that my previous builder had installed low side pressure onto the door cylinder upper end. My book shows that port open to atmosphere, but page 14-9 REV. 0/11-1-91 shows an alternate method, taking a low pressure hose to the opening side of the door cylinder. It seems that when the retract cycle begins the reduction in pressure causes the door to partially close against the spring pressure. My question is: Why is hydraulic pressure needed to open the door? When the high side pressure is relaxed, the spring should open the door, and the wheel will push it open anyway. Do I need a stronger spring, or should I just disconnect the low side from the cylinder? Berni, I wrapped my door handle in plastic tape and glopped on micro all around, then sanded it down to fair in the handle. Pretty simple, but will take a little time to make it look good. Weight and balance done yesterday. Plane weighs 1140. With 170 lb pilot, and no gas or baggage it is at extreme forward cg envelope (battery is on the firewall). What is the moment of the pilot/passenger in a 360 (from aft side of firewall)? Ed Gray Dallas 360 FB Superior IO 360 ------=_NextPart_000_010F_01CD4352.6E4A6140 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Running retraction tests on my 360, the nose = gear door partially closed early, blocking the nose gear = retraction.  Since the book described it being held open by the = coil spring, I didn’t understand.  Then I found that my = previous builder had installed low side pressure onto the door cylinder = upper end.  My book shows that port open to atmosphere, but page = 14-9 REV. 0/11-1-91 shows an alternate method, taking a low pressure = hose to the opening side of the door cylinder.

 

It seems that when = the retract cycle begins the reduction in pressure causes the door to = partially close against the spring pressure.  My question is:  = Why is hydraulic pressure needed to open the door?  When the high = side pressure is relaxed, the spring should open the door, and the wheel = will push it open anyway.  Do I need a stronger spring, or should I = just disconnect the low side from the cylinder?

 

Berni, I wrapped my = door handle in plastic tape and glopped on micro all around, then sanded = it down to fair in the handle.  Pretty simple, but will take a = little time to make it look good.

 

Weight and balance = done yesterday.  Plane weighs 1140.  With 170 lb pilot, and no = gas or baggage it is at extreme forward cg envelope (battery is on the = firewall).  What is the moment of the pilot/passenger in a 360 = (from aft side of firewall)?

 

Ed Gray Dallas 360 FB = Superior IO 360

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