X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 27 Feb 2014 11:49:42 -0500 Message-ID: X-Original-Return-Path: Received: from argon.lunarpages.com ([216.97.227.30] verified) by logan.com (CommuniGate Pro SMTP 6.0.8) with ESMTPS id 6752074 for lml@lancaironline.net; Thu, 27 Feb 2014 10:58:43 -0500 Received-SPF: pass receiver=logan.com; client-ip=216.97.227.30; envelope-from=thorn@starflight.aero Received: from [66.35.41.1] (port=30153 helo=[10.255.48.12]) by argon.lunarpages.com with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.77) (envelope-from ) id 1WJ3LZ-0005Ob-Va; Thu, 27 Feb 2014 07:58:06 -0800 Content-Type: multipart/alternative; boundary=Apple-Mail-A800752D-8C35-4F5D-8C50-7414AE7616CC Mime-Version: 1.0 (1.0) Subject: Re: [LML] Re: Legacy Accident History Update From: Valin & Allyson Thorn X-Mailer: iPad Mail (11B554a) In-Reply-To: X-Original-Date: Thu, 27 Feb 2014 08:58:08 -0700 X-Original-Cc: "lml@lancaironline.net" Content-Transfer-Encoding: 7bit X-Original-Message-Id: <3E134D1E-A1C8-4389-9753-E8807134D3F5@starflight.aero> References: X-Original-To: Lancair Mailing List X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - argon.lunarpages.com X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - starflight.aero X-Get-Message-Sender-Via: argon.lunarpages.com: authenticated_id: thorn@starflight.aero --Apple-Mail-A800752D-8C35-4F5D-8C50-7414AE7616CC Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Really encouraging that properly handled one should be able to fly back to a= controllable landing. The airplane's particular c.g. could affect how stab= le it is with the canopy open, or pilots may be helping to induce oscillatio= ns -- but, I think speed/AOA is key and keeping the speed up and AOA low -- m= aybe 120 KIAS is a good target stable speed for canopy open flight. Valin Sent by iPad > On Feb 26, 2014, at 8:00 AM, John Smith wrote: >=20 > Hi Valin, >=20 > Check out Scott Alair's actual experience of flying with a canopy open and= landing safely =E2=80=93 this was posted on the forum last November =E2=80=93= I've pasted in below. 120kts worked for Scott =E2=80=93 that's what I will u= se if ever this happens to me! >=20 >=20 > Regards, >=20 > John >=20 >=20 > John N G Smith > Tel / fax: +61-8-9385-8891 > Mobile: +61-409-372-975 > Email: john@jjts.net.au >=20 >=20 > My Legacy open canopy story > =20 > On a hot summer day in 2006 at Sierra Sky Park airport in Fresno Californi= a I taxied to runway 30 (2473ft. X 50ft) with my canopy open resting on my a= rm. When I taxied on to the runway I did not push up on the canopy to check t= hat it is latched (I do now). When I rotated at about 80kts I was startled b= y the sudden noise and wind of the canopy coming open about 3 inches at the r= ear edge. I knew could not stop on the remaining runway so I continued with a= normal takeoff. I left the flaps at 10 deg. climbed at 120kts to 1,000 ft a= gl and trimmed the plane for level flight (I do not have an autopilot). I th= an put my hands on the trailing edge of the canopy frame and tried to move i= t(it had been in a stable open position so far). I could close it about 1 in= ch and open it about 1inch further but that was as far as I could move it. A= t this point I decided to return to land, I flew a normal pattern, as I flar= ed for landing the canopy opened another 2 inches. Throughout the flight the= canopy never oscillated or affected the control of the aircraft.=20 > =20 > Scott Alair > L2K-167 > First flight April 2004=20 > 700+ Hours Legacy time=20 > Posted for Scott Alair: > =20 > John, I left my gear down throughout my open canopy flight to make it less= likely to exceed 120Kts to minimize the slipstream forces on the canopy. I w= as afraid the canopy might be torn loose from the fuselage and also by leavi= ng the gear down it was one less thing to worry about. > =20 > Scott Alair --Apple-Mail-A800752D-8C35-4F5D-8C50-7414AE7616CC Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Really encouraging that properly handl= ed one should be able to fly back to a controllable landing.  The airpl= ane's particular c.g. could affect how stable it is with the canopy open, or= pilots may be helping to induce oscillations -- but, I think speed/AOA is k= ey and keeping the speed up and AOA low -- maybe 120 KIAS is a good target s= table speed for canopy open flight.

Valin

Se= nt by iPad

On Feb 26, 2014, at 8:00 AM, John Smith <john@jjts.net.au> wrote:

Hi Valin,

Ch= eck out Scott Alair's actual experience of flying with a canopy open and lan= ding safely =E2=80=93 this was posted on the forum last November =E2=80=93 I= 've pasted in below. 120kts worked for Scott =E2=80=93 that's what I will us= e if ever this happens to me!


Regards,

John
John N G Smith
Tel / fax:    +61-8-9385-8891
Mobile:      +61-409-372-975
Email:         john@jjts.net.au


My Legacy open canopy story=

 

On a hot summer day in 2006 at Sierra Sky Park= airport in Fresno California I taxied to runway 30 (2473ft. X 50ft) with my= canopy open resting on my arm. When I taxied on to the runway I did no= t push up on the canopy to check that it is latched (I do now). When I rotat= ed at about 80kts I was startled by the sudden noise and wind of the ca= nopy coming open about 3 inches at the rear edge. I knew could not stop= on the remaining runway so I continued with a normal takeoff. I left the fl= aps at 10 deg. climbed at 120kts to 1,000 ft agl and trimmed the p= lane for level flight (I do not have an autopilot). I than put my hands on t= he trailing edge of the canopy frame and tried to move it(it had been i= n a stable open position so far). I could close it about 1 inch and open it a= bout 1inch further but that was as far as I could move it. At this poin= t I decided to return to land, I flew a normal pattern, as I flared for = ;landing the canopy opened another 2 inches. Throughout the flight the c= anopy never oscillated or affected the control of the aircraft.&nb= sp;

 

 Scott Alair

= L2K-167

First flight April 2004 

700+ Hours L= egacy time 

 Posted for Scott Alair:

 

John, I left my gear down throughout my open canopy flight to make it l= ess likely to exceed 120Kts to minimize the slipstream forces on the canopy.=  I was afraid the canopy might be torn loose from the fuselage and also= by leaving the gear down it was one less thing to worry about.

 

Scott Alair

= --Apple-Mail-A800752D-8C35-4F5D-8C50-7414AE7616CC--