X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 22 Dec 2010 07:51:26 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-mealy.atl.sa.earthlink.net ([209.86.89.69] verified) by logan.com (CommuniGate Pro SMTP 5.3.11) with ESMTP id 4649870 for lml@lancaironline.net; Tue, 21 Dec 2010 14:48:18 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.69; envelope-from=panelmaker@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=Fd6awpehIYT+OSh/f/nWVgSErAul/SRkjHLRnI2d6ePJdiCeIiOQHEbnmqR+sh/e; h=Received:From:To:References:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:Thread-Index:In-Reply-To:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [209.173.71.183] (helo=DELL8300) by elasmtp-mealy.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1PV8BT-0003xY-2C for lml@lancaironline.net; Tue, 21 Dec 2010 14:47:43 -0500 From: "Jim Nordin" X-Original-To: "'Lancair Mailing List'" References: Subject: Aussie flight rules X-Original-Date: Tue, 21 Dec 2010 13:47:44 -0600 X-Original-Message-ID: <8C45B1BAEAD7479CBDED43DA42EC85F9@DELL8300> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0027_01CBA115.A5692E30" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcuhPGVPINS7BCqSQxqBVd5zEU8igQAC0WEg In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5994 X-ELNK-Trace: bdfc62829fd2a80cc8ad50643b1069f8239a348a220c26096b7337f0a23e10d337a63df7e56d2d4c93caf27dac41a8fd350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 209.173.71.183 This is a multi-part message in MIME format. ------=_NextPart_000_0027_01CBA115.A5692E30 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit From a blog years ago: "There seems to be some confusion between QNH and QFE creeping into this thread. QFE is the barometric setting which causes the aircraft altimeter to read zero when the aircraft is on the ground at the aerodrome to which the QFE relates. Aircraft elevations when QFE is set are reported as "height". It is usual - in the UK - to land and take off with QFE set. A few years ago the RAF experimented with the US system where aircraft operated only on QNH (but with QFE available on request). QNH is the barometric setting which causes the aircraft altimeter to show the aircraft height above sea level. This is the setting usually used for cross country flying below the transition level as it also shows your height above the chart datum. When QNH is set, aircraft elevation is reported as "altitude". If flying above the transition level (in the UK generally 3,000 feet amsl) pilots flying in accordance with the Instrument Flight Rules are required, and pilots flying VFR are advised, to use QNE. This is a standard setting of 1013.25 hPa. Aircraft elevation is reported as "flight level"." Jim _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Colyn Case Sent: Tuesday, December 21, 2010 12:25 PM To: lml@lancaironline.net Subject: [LML] Re: Aussie flight rules what is a QNH? On Dec 19, 2010, at 7:09 PM, Frederick Moreno wrote: ------=_NextPart_000_0027_01CBA115.A5692E30 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

From a blog years = ago:

“There seems = to be some confusion between QNH and QFE creeping into this thread.

QFE is the barometric setting which causes the aircraft altimeter to = read zero when the aircraft is on the ground at the aerodrome to which the QFE = relates. Aircraft elevations when QFE is set are reported as "height". = It is usual - in the UK - to land and take off with QFE set. A few years ago = the RAF experimented with the US system where aircraft operated only on QNH (but = with QFE available on request).

QNH is the barometric setting which causes the aircraft altimeter to = show the aircraft height above sea level. This is the setting usually used for = cross country flying below the transition level as it also shows your height = above the chart datum. When QNH is set, aircraft elevation is reported as "altitude".

If flying above the transition level (in the UK generally 3,000 feet = amsl) pilots flying in accordance with the Instrument Flight Rules are = required, and pilots flying VFR are advised, to use QNE. This is a standard setting of 1013.25 hPa. Aircraft elevation is reported as "flight = level”.”

 

Jim

 

From: = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Colyn Case
Sent: Tuesday, December = 21, 2010 12:25 PM
To: = lml@lancaironline.net
Subject: [LML] Re: Aussie = flight rules

 

what is a QNH?

 

On Dec 19, 2010, at 7:09 PM, Frederick Moreno = wrote:



 

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