Re: [LML] Legacy Takeoff Performance at High Elevation Airports?</TI= TLE> </HEAD> <BODY> HI Valin I fly a normally aspirated IO-550N powered Legacy and recently had occasion= to check my take off roll at a 4500ft altitude airport. Density altitude wa= s 6000ft on the day and according to the plot on Google Earth the Legacy too= k 1640ft to lift off at a weight of 2250lbs. But at that sort of weight and = the DA up at 8000ft, I’ve had the Legacy take up to a 2500ft. Not a ba= d performance but there is a noticeable degradation in climb performance at = those altitudes so the usual caution applies. My rule of thumb at the high altitude airports is not to go into anything l= ess than 3300ft length and then to take off before the mercury climbs. I agr= ee with a previous post, I am more concerned about the landing roll at high = altitudes. Regards Ross Legacy #309, 200 hours </BODY> </HTML> --B_3471612627

X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 03 Jan 2014 09:51:59 -0500 Message-ID: X-Original-Return-Path: Received: from relay06.smp.mweb.co.za ([196.28.80.26] verified) by logan.com (CommuniGate Pro SMTP 6.0.8) with ESMTPS id 6667096 for lml@lancaironline.net; Fri, 03 Jan 2014 09:51:11 -0500 Received-SPF: none receiver=logan.com; client-ip=196.28.80.26; envelope-from=rossl@mweb.co.za Received: from 41-133-139-31.dsl.mweb.co.za ([41.133.139.31] helo=[192.168.2.9]) by relay06.smp.mweb.co.za with esmtp (Exim 4.80.1) id 1Vz64x-000E2q-Mx for ; Fri, 03 Jan 2014 16:50:31 +0200 User-Agent: Microsoft-Entourage/12.23.0.091001 X-Original-Date: Fri, 03 Jan 2014 16:50:23 +0200 Subject: Re: [LML] Legacy Takeoff Performance at High Elevation Airports? From: Ross Leighton X-Original-To: Lancair List X-Original-Message-ID: Thread-Topic: [LML] Legacy Takeoff Performance at High Elevation Airports? Thread-Index: Ac8IkyFdOxUyODvjBEaLKMsM9CGusQ== In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3471612627_77588729" > 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_3471612627_77588729 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable HI Valin I fly a normally aspirated IO-550N powered Legacy and recently had occasion to check my take off roll at a 4500ft altitude airport. Density altitude wa= s 6000ft on the day and according to the plot on Google Earth the Legacy took 1640ft to lift off at a weight of 2250lbs. But at that sort of weight and the DA up at 8000ft, I=B9ve had the Legacy take up to a 2500ft. Not a bad performance but there is a noticeable degradation in climb performance at those altitudes so the usual caution applies. My rule of thumb at the high altitude airports is not to go into anything less than 3300ft length and then to take off before the mercury climbs. I agree with a previous post, I am more concerned about the landing roll at high altitudes. Regards Ross Legacy #309, 200 hours --B_3471612627_77588729 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Re: [LML] Legacy Takeoff Performance at High Elevation Airports?</TI= TLE> </HEAD> <BODY> HI Valin I fly a normally aspirated IO-550N powered Legacy and recently had occasion= to check my take off roll at a 4500ft altitude airport. Density altitude wa= s 6000ft on the day and according to the plot on Google Earth the Legacy too= k 1640ft to lift off at a weight of 2250lbs. But at that sort of weight and = the DA up at 8000ft, I’ve had the Legacy take up to a 2500ft. Not a ba= d performance but there is a noticeable degradation in climb performance at = those altitudes so the usual caution applies. My rule of thumb at the high altitude airports is not to go into anything l= ess than 3300ft length and then to take off before the mercury climbs. I agr= ee with a previous post, I am more concerned about the landing roll at high = altitudes. Regards Ross Legacy #309, 200 hours </BODY> </HTML> --B_3471612627_77588729--