Mailing List lml@lancaironline.net Message #48802
From: John Hafen <j.hafen@comcast.net>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] IV-P Flaps - Theory of Operation
Date: Mon, 08 Sep 2008 15:31:12 -0400
To: <lml@lancaironline.net>
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 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" <schaefer@rts-services.com> wrote:

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 <http://www.rts-services.com/>
7330 Cave Hollow        ___        Voice:  (512) 923-2755
Austin, TX 78750         |        Fax:    (830) 798-9644
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