X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-junco.atl.sa.earthlink.net ([209.86.89.63] verified) by logan.com (CommuniGate Pro SMTP 6.0.2) with ESMTP id 6119483 for lml@lancaironline.net; Wed, 13 Mar 2013 15:14:43 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.63; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=cnAuPbFikMw472CJvTIpVNDntBIBRzIu9CUkp6GThgq2GjilL04XApP8wBVzUBdo; h=Received:Content-Type:Mime-Version:Subject:From:In-Reply-To:Date:Content-Transfer-Encoding:Message-Id:References:To:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [71.161.209.221] (helo=[192.168.1.24]) by elasmtp-junco.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1UFr7o-0007s6-Ck for lml@lancaironline.net; Wed, 13 Mar 2013 14:14:08 -0500 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1085) Subject: Re: [LML] Re: vacuum hose From: Colyn Case In-Reply-To: Date: Wed, 13 Mar 2013 15:14:07 -0400 Content-Transfer-Encoding: quoted-printable Message-Id: <45735DF7-C55A-4326-AA3E-CE9D42FF90A8@earthlink.net> References: To: "Lancair Mailing List" X-Mailer: Apple Mail (2.1085) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da940c008a72423caf7cab722402a8e440ced350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 71.161.209.221 If you have a vacuum system, you can hook that up. If you don't, you can buy a small pump and hook that up. I haven't = done the latter but I've heard the door seal pump works okay for this = application. Using that main vac pump almost completely eliminates the cabin pressure = increase at takeoff. On Mar 13, 2013, at 1:21 PM, Todd Long wrote: How do most of you operate the pressurization system to avoid the major = bumps at takeoff? My vacuum line was capped.=20 Typing and grammar errors courtesy of Siri and the iPhone. On Mar 13, 2013, at 10:56, Paul Miller wrote: > Autozone, lots of smaller sizes for vacuum hose by the foot. > On 2013-03-13, at 10:51 AM, Colyn Case = wrote: >=20 >> I'm looking for a minimum thickness vacuum hose just to hold the = dukes pressurization valve open on takeoff. Right now I have a 1/4" = i.d. .64" o.d. big fat rubber line. I don't see anything on McMaster = Carr that is thinner wall. But given it probably needs to handle maybe = 10 psi of vacuum, the big fat rubber hoses seem like overkill. >=20 >=20 > -- > For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html -- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html