Return-Path: Sender: (Marvin Kaye) To: lml Date: Wed, 21 Aug 2002 10:39:52 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m06.mx.aol.com ([64.12.136.161] verified) by logan.com (CommuniGate Pro SMTP 4.0b6) with ESMTP id 1701666 for lml@lancaironline.net; Wed, 21 Aug 2002 10:34:41 -0400 Received: from Sky2high@aol.com by imo-m06.mx.aol.com (mail_out_v33.5.) id q.11b.1534fb1e (16781) for ; Wed, 21 Aug 2002 10:34:38 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <11b.1534fb1e.2a94fefd@aol.com> X-Original-Date: Wed, 21 Aug 2002 10:34:37 EDT Subject: LNC2 Performance vs Altitude X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_11b.1534fb1e.2a94fefd_boundary" X-Mailer: AOL 8.0 for Windows US sub 64 --part1_11b.1534fb1e.2a94fefd_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 8/21/2002 8:14:27 AM Central Daylight Time, harrelson@erols.com writes: > ........ But, whatever you do, stop flying at 18000 ft. Use plenty of O2 > and stay around 9000 ft (+ or -) for best performance!!! > > > > Hmmm. What are you saying here Scott. If you're talking about high > altitude flying without O2, I certainly agree with you. But are you against > flying above 10 WITH oxygen? I've had mine up to FL210 (with oxygen, of > course) with no ill effects. > Bill, et al: Every airplane is designed around some parameters where its cruise performance is optimal. Wing/tail incidence calculated against IAS at certain pressure altitude and aircraft weight, CG, temperature, etc...... You can fly it higher or lower, faster or slower, lighter or heavier but, the "best" performance for an LNC2 occurs at about 1685 lbs, mid range CG, about 9000 ft pressure altitude, 225 mph TAS. Note, however, that the Legacy was designed for a higher altitude, 12000 ft I think. There are other items that affect a successful and quick flight. 9000 ft doesn't get you over every mountain, into a 50 Kt tailwind, or out of all turbulence. I just find my cross country performance has been best at 7500, 8000, 8500 and 9000 ft altitudes, all other things being equal. Scott Krueger N92EX --part1_11b.1534fb1e.2a94fefd_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 8/21/2002 8:14:27 AM Central Daylight Time, harrelson@erols.com writes:

........  But, whatever you do, stop flying at 18000 ft.  Use plenty of O2 and stay around 9000 ft (+ or -) for best performance!!!



Hmmm.   What are you saying here Scott. If you're talking about high altitude flying without O2, I certainly agree with you. But are you against flying above 10 WITH oxygen? I've had mine up to FL210 (with oxygen, of course) with no ill effects.


Bill, et al:

Every airplane is designed around some parameters where its cruise performance is optimal.  Wing/tail incidence calculated against IAS at certain pressure altitude and aircraft weight, CG, temperature, etc......  You can fly it higher or lower, faster or slower, lighter or heavier but, the "best" performance for an LNC2 occurs at about 1685 lbs, mid range CG, about 9000 ft pressure altitude, 225 mph TAS.

Note, however, that the Legacy was designed for a higher altitude, 12000 ft I think.

There are other items that affect a successful and quick flight.  9000 ft doesn't get you over every mountain, into a 50 Kt tailwind, or out of all turbulence.  I just find my cross country performance has been best at 7500, 8000, 8500 and 9000 ft altitudes, all other things being equal.

Scott Krueger
N92EX --part1_11b.1534fb1e.2a94fefd_boundary--