Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Thu, 23 Dec 2004 11:47:08 -0500 Message-ID: X-Original-Return-Path: Received: from [207.254.33.66] (HELO DEWEY2.Cadwell.cadwell.com) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 578041 for lml@lancaironline.net; Thu, 23 Dec 2004 11:15:14 -0500 Received-SPF: none receiver=logan.com; client-ip=207.254.33.66; envelope-from=CarlC@Cadwell.com Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C4E90A.8354458F" X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Subject: IVP Low power settings vs. pressurization X-Original-Date: Thu, 23 Dec 2004 08:14:43 -0800 X-Original-Message-ID: <63D0A1D8F168684F8502C4B8A229D79163D05E@DEWEY2.Cadwell.cadwell.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: IVP Low power settings vs. pressurization Thread-Index: AcTpCoM+hPIBWxG8RBWAhtmjSclzqA== From: "Carl Cadwell" X-Original-To: This is a multi-part message in MIME format. ------_=_NextPart_001_01C4E90A.8354458F Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Colyn Case asked "... long range profiles and noticing that a lot of the interesting range is below 28" MP. I've heard this is the least that will keep you pressurized at altitude. =20 Is this really true?" I begin to loose pressurization below 25" MP. I did not do anything special to tighten up the pressure vessel other than in the manual: pressurize it to 5" , look for leaks with smoke and seal with RTV silicone. =20 I never cruise at this setting, this is only used in descents. I usually cruise in the Flight levels 240 and 250. =20 25CL IVP with TSIO 550 E, 780 hours =20 Carl Cadwell ------_=_NextPart_001_01C4E90A.8354458F Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable IVP Low power settings vs. pressurization

Colyn = Case asked “… long range profiles and noticing that a lot of the = interesting range is below

28" MP.  I've heard this is the least that will = keep you pressurized at altitude.

 

Is = this really true?”

I = begin to loose pressurization below 25” MP.  I did not do = anything special to tighten up the pressure vessel = other than in the = manual: pressurize = it to 5” , look for = leaks with smoke and seal with = RTV silicone.  

I = never cruise at this setting, this is only used in descents.  I = usually cruise in the Flight levels 240 and 250.  =

25CL IVP with TSIO 550 = E, 780 hours

 

Carl Cadwell

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