X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 07 Sep 2008 18:09:00 -0400 Message-ID: X-Original-Return-Path: Received: from hrndva-omtalb.mail.rr.com ([71.74.56.125] verified) by logan.com (CommuniGate Pro SMTP 5.2.7) with ESMTP id 3117723 for lml@lancaironline.net; Sat, 06 Sep 2008 20:33:25 -0400 Received-SPF: none receiver=logan.com; client-ip=71.74.56.125; envelope-from=schaefer@rts-services.com Received: from Master.RTS-Services.com ([70.113.121.73]) by hrndva-omta05.mail.rr.com with ESMTP id <20080907003250.NKN4606.hrndva-omta05.mail.rr.com@Master.RTS-Services.com> for ; Sun, 7 Sep 2008 00:32:50 +0000 Received: from RTSLaptop (cpe-70-113-121-73.austin.res.rr.com [70.113.121.73]) (authenticated bits=0) by Master.RTS-Services.com (8.13.1/8.13.1) with ESMTP id m870NvO7014920 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NO) for ; Sat, 6 Sep 2008 19:23:58 -0500 From: "Richard T. Schaefer" X-Original-To: "'Lancair Mailing List'" Subject: IV-P Flaps - Theory of Operation X-Original-Date: Sat, 6 Sep 2008 19:32:18 -0500 X-Original-Message-ID: <5A79E04A3830483FA86D647ECF80BDD8@RTSLaptop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003E_01C91057.46CF4E00" X-Mailer: Microsoft Office Outlook 11 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Thread-index: AckQgS8FVLtLG7+aRyuNAkr4jfIPuw== X-Spam-Score: -1.474 () AWL,BAYES_00,DYN_RDNS_SHORT_HELO_HTML,HTML_MESSAGE,RDNS_DYNAMIC X-Scanned-By: MIMEDefang 2.58 on 192.168.10.101 This is a multi-part message in MIME format. ------=_NextPart_000_003E_01C91057.46CF4E00 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Folks, I know little about hydraulics . That said I do not understand how the flaps work on the IV-P. One side of the flap cylinder goes to a metering valve and then to the high pressure manifold. The other side of the flap cylinder goes to the three position flap control . I assume that in one direction it is manifold pressure, the other direction it is reservoir pressure, and in neutral it is sealed. So I can understand what happens when you have the following: 1) Flap Switch on reservoir pressure and consequently one side of the flap cylinder, and the other metered from the manifold. 2) I also understand when the flap is neutral, than no-oil flowing means the flap is locked in the current position. But how do things work when: 3) The Flap Switch is on manifold pressure and consequently one side of flap cylinder, and the other metered from the manifold ? Inquiring minds want to know, thanks! Richard T. Schaefer E-mail: schaefer@RTS-Services.com RTS Services Inc Web: http://www.RTS-Services.com 7330 Cave Hollow ___ Voice: (512) 923-2755 Austin, TX 78750 | Fax: (830) 798-9644 `---------(*)---------' ------=_NextPart_000_003E_01C91057.46CF4E00 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Folks,

I know little about hydraulics … That = said I do not understand how the flaps work on the = IV-P.

One side of the flap cylinder goes to a metering = valve and then to the high pressure manifold.

The other side of the flap cylinder goes to the three position flap control …

I assume that in one direction it is manifold = pressure, the other direction it is reservoir pressure, and in neutral it is sealed. =

So I can understand what happens when you have the following:

= 1) Flap Switch on reservoir pressure and consequently one side of the flap cylinder, and the other metered from the = manifold.

= 2) I also understand when the flap is neutral, than no-oil flowing means = the flap is locked in the current position.

But how do things work = when:

3) The Flap Switch is = on manifold pressure and consequently one side of flap cylinder, and the other = metered from the manifold ?

Inquiring minds want to know, = thanks!

Richard T. Schaefer = E-mail: schaefer@RTS-Services.com

RTS Services Inc Web: http://www.RTS-Services.com

7330 Cave Hollow      =    ___        Voice: (512) = 923-2755
Austin, = TX 78750        |   =       Fax:    (830) 798-9644
            &= nbsp;  `---------(*)---------'=

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