X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 08 Sep 2008 15:31:12 -0400 Message-ID: X-Original-Return-Path: Received: from QMTA10.emeryville.ca.mail.comcast.net ([76.96.30.17] verified) by logan.com (CommuniGate Pro SMTP 5.2.7) with ESMTP id 3119630 for lml@lancaironline.net; Mon, 08 Sep 2008 12:54:21 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.17; envelope-from=j.hafen@comcast.net Received: from OMTA07.emeryville.ca.mail.comcast.net ([76.96.30.59]) by QMTA10.emeryville.ca.mail.comcast.net with comcast id CF8u1a00S1GXsucAAGtjUz; Mon, 08 Sep 2008 16:53:43 +0000 Received: from [10.128.88.223] ([206.191.160.125]) by OMTA07.emeryville.ca.mail.comcast.net with comcast id CGtY1a0112idoaN8TGtb9B; Mon, 08 Sep 2008 16:53:40 +0000 X-Authority-Analysis: v=1.0 c=1 a=WW4zgnBM7j0A:10 a=x_IINq54AAAA:8 a=0atcCsAGjy2NAO2ROgQA:9 a=ipcFgNM7s3f_mi3tuQj26W_RMwcA:4 a=G0UnTNifZHAA:10 a=cqbYQ6kiVyoA:10 a=_8bMcCYKcroA:10 a=6bqG61NMjcsA:10 a=ZqImhaL1NLdXKJ5zLvMA:9 a=YOxuvCaix_-Fq94EH_QA:7 a=2kifxm4jSUKRZUR2SBXteAZkro0A:4 a=Sz-0p1zU2dQA:10 User-Agent: Microsoft-Entourage/12.12.0.080729 X-Original-Date: Mon, 08 Sep 2008 09:53:32 -0700 Subject: Re: [LML] IV-P Flaps - Theory of Operation From: John Hafen X-Original-To: Lancair Mailing List X-Original-Message-ID: Thread-Topic: [LML] IV-P Flaps - Theory of Operation Thread-Index: AckR02zsaArPsbGcnkSa9/NW+OS/gw== In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3303712420_146894" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3303712420_146894 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Consider going with Electric flaps, like I did. Call Mark Mahnke at 541 350-1020. =20 I went with electric flaps because that was what I was familiar with in my Centurion T210. Also, you can put an electric flap switch anywhere you want. My gear is also electrically actuated and still hydraulically driven= . I wanted the flap switch and the gear switch far far away from each other, for obvious reasons. John Hafen N413AJ On 9/7/08 3:09 PM, "Richard T. Schaefer" wrote: > Folks, > I know little about hydraulics =8A That said I do not understand how the = flaps > work on the IV-P. > =20 > One side of the flap cylinder goes to a metering valve and then to the hi= gh > pressure manifold. > The other side of the flap cylinder goes to the three position flap contr= ol =8A > I assume that in one direction it is manifold pressure, the other directi= on it > is reservoir pressure, and in neutral it is sealed. > =20 > So I can understand what happens when you have the following: > 1) Flap Switch on reservoir pressure and consequently one sid= e of > the flap cylinder, and the other metered from the manifold. > 2) I also understand when the flap is neutral, than no-oil flo= wing > means the flap is locked in the current position. > =20 > 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 ? > =20 > Inquiring minds want to know, thanks! > =20 > =20 > 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 > `---------(*)---------' > =20 > =20 >=20 --B_3303712420_146894 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Re: [LML] IV-P Flaps - Theory of Operation Consider going with Electric flaps, like I did.  Call Mark Mahnke at = 541 350-1020.  

I went with electric flaps because that was what I was familiar with in my = Centurion T210.  Also, you can put an electric flap switch anywhere you= want.  My gear is also electrically actuated and still hydraulically d= riven.  I wanted the flap switch and the gear switch far far away from = each other, for obvious reasons.

John Hafen
N413AJ


On 9/7/08 3:09 PM, "Richard T. Schaefer" <schaefer@rts-services.com> wrote:

Folks,
  I know little about hydraulics … That said I do not under= stand 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 cyli= nder, 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     &nbs= p;E-mail: schaefer@RTS-Services.com<= BR> RTS Services Inc          Web:= http://www.RTS-Services.com <<= a href=3D"http://www.rts-services.com/">http://www.rts-services.com/> <= BR> 7330 Cave Hollow        ___   =      Voice:  (512) 923-2755
Austin, TX 78750         |  &n= bsp;     Fax:    (830) 798-9644
            &nb= sp;  `---------(*)---------'
 

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