X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 17 Apr 2011 11:13:19 -0400 Message-ID: X-Original-Return-Path: Received: from web57508.mail.re1.yahoo.com ([66.196.100.75] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with SMTP id 4948779 for lml@lancaironline.net; Sun, 17 Apr 2011 07:41:30 -0400 Received-SPF: none receiver=logan.com; client-ip=66.196.100.75; envelope-from=casey.gary@yahoo.com Received: (qmail 93054 invoked by uid 60001); 17 Apr 2011 11:40:55 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=fEFyN2FSH42QPjcCZ3D3NZkQMqXeJsP6mBocWa9Qggl8EhGxgKrDJZkd/igOjcfdUvG15ZO3iwPcX4JISwSQ0VhetFEtW7YA2q5NLffL9nuPucOi5l1bQKj8yK98rzDrYtEUkc+jk1TnrxhnEoojhj6DzhxIALqMzHMisQebpb4=; X-Original-Message-ID: <220725.86441.qm@web57508.mail.re1.yahoo.com> X-YMail-OSG: rYPj_dUVM1mWQtUvyvys6jeSF1iMfRRwACB0V5IjVtWdYR4 N__zkQNlmjt5_I4h7PMxgKgNqW89oDmpBXcrfeppsV9rpp_FmX.r13aDAgIs _3kcWuYykvEhmdGxCrcEeZYkHgGnTDKmdzTd2WyAHDBdTv7x4YKCQUTXqYb. WjW8JYPoJFexZAqQwsYDS4ktHoLhBhykNqCJMiruMQcPhvoMQCqkHoRybHY3 BuXJrptV2EtPjBVdzIXdgU6y804_D3S0LzRx4.6Q.AH42t3TG6QSaGSB9zo4 QARhFVTxdnitrDWF5lr5yX3d6CERirpLrmnekU9_myEzOFq5k3wBllaaN3jc TWXggPqs- Received: from [97.122.178.222] by web57508.mail.re1.yahoo.com via HTTP; Sun, 17 Apr 2011 04:40:55 PDT X-Mailer: YahooMailRC/559 YahooMailWebService/0.8.109.295617 References: X-Original-Date: Sun, 17 Apr 2011 04:40:55 -0700 (PDT) From: Gary Casey Subject: Re: LNC2 Gear Hydraulics X-Original-To: Lancair Mailing List In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-777981896-1303040455=:86441" --0-777981896-1303040455=:86441 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I haven't been following this thread in detail, but I think there might be = some =0Amisunderstanding or miscommunication. In my experience the G level= s to which =0Acomponents are exposed (or could potentially be exposed) are = quite different. =0A They go something like this:=0AAirframe-mounted compon= ents - 4 G's or so (more for hard-core aerobatics)=0AUnsprung weight (landi= ng gear below the springs) - as high as 40 G's, but more =0Alike 20 G's=0AE= ngine-mounted components - 20 G's, but as high as 40 G's at the cylinder he= ads=0A=0AI don't know how anything could be exposed to 70 G's of externally= -driven G =0Aforces. Maybe internal to some components G levels are that h= igh - certainly =0Ainside the engine or at the propeller tips, but otherwis= e, I don't think so. =0A You can keep your laptop :-).=0AGary Casey=0AES, w= ith wheel pants in harms way=0A=0A=0A70 G=E2=80=99s? That=E2=80=99s an awf= ul lot of force. Wouldn=E2=80=99t your pump be experiencing that =0Aas wel= l? I think my pump at least 10 lbs. Isn=E2=80=99t that like 700lbs? That= =E2=80=99s =0Apretty scary, maybe I should beef up my mount a bit. =0A =0AI= f there is that much vibration in a typical airplane, I wonder if I should = =0Aleave my laptop at home. I=E2=80=99m not sure I want it experiencing th= ose kinds of =0Avibrations. That would really mess up my HD.=0A =0AKevin --0-777981896-1303040455=:86441 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

I haven't been following this thread in detail,= but I think there might be some misunderstanding or miscommunication. &nbs= p;In my experience the G levels to which components are exposed (or could p= otentially be exposed) are quite different. They go something like th= is:

Airframe-mounted components - 4 G's or so (more for hard-= core aerobatics)

Unsprung weight (= landing gear below the springs) - as high as 40 G's, but more like 20 G's

Engine-mounted components - 20 G's, = but as high as 40 G's at the cylinder heads

<= /font>

I don't know how anything could be exposed to 70 G's of e= xternally-driven G forces. Maybe internal to some components G levels= are that high - certainly inside the engine or at the propeller tips, but = otherwise, I don't think so. You can keep your laptop :-).

Ga= ry Casey

ES, with wheel pants in ha= rms way

70 G=E2=80=99s? That=E2=80=99s an awful lot of force.&nbs= p; Wouldn=E2=80=99t your pump be experiencing that as well? I think m= y pump at least 10 lbs. Isn=E2=80=99t that like 700lbs? That=E2= =80=99s pretty scary, maybe I should beef up my mount a bit.

If there is t= hat much vibration in a typical airplane, I wonder if I should leave my lap= top at home. I=E2=80=99m not sure I want it experiencing those kinds = of vibrations. That would really mess up my HD.

Kevin

=

=0A=0A=0A

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