X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 24 Mar 2008 07:44:38 -0400 Message-ID: X-Original-Return-Path: Received: from qsmtp2.america.net ([69.60.160.245] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTPS id 2814407 for lml@lancaironline.net; Sun, 23 Mar 2008 11:12:13 -0400 Received-SPF: pass receiver=logan.com; client-ip=69.60.160.245; envelope-from=jrichard@ccser.com Received: from [65.61.104.89] (helo=M35456) by qsmtp2.america.net with esmtp (Exim 4.68) (envelope-from ) id 1JdRqz-0000un-Id for lml@lancaironline.net; Sun, 23 Mar 2008 11:11:22 -0400 From: "John Richardson" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Re: Lifting the Legacy Canopy X-Original-Date: Sun, 23 Mar 2008 08:11:22 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002D_01C88CBD.7BC27BF0" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 Thread-Index: AciKxPd2ZMn0DRW4TrSvoibuRjKMRQCL7Jsg In-Reply-To: X-Original-Message-ID: This is a multi-part message in MIME format. ------=_NextPart_000_002D_01C88CBD.7BC27BF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To Doug Brunner and others on the LML Regarding my canopy lift spring idea, I think it's going to be OK with the pneumatic canopy seal since that seal is attached to the side of the fuselage, not the canopy, and inflates mainly outward (in the aft area near where the spring is located). The spring is attached to the canopy and with the canopy closed, the spring is squashed flat and does not overlap the seal. But like I said earlier, I haven't installed the seal kit yet, so I don't really know. Regarding noise in the cockpit during flight without the canopy seal...yes, it is very loud!!!. However, I think most of the noise is caused by engine noise, exhaust noise, and other vibrations being conducted by the rigid carbon fiber airframe. I have no interior panels. I do not hear much "air" noise. (I have installed temporary foam rubber strips in place of the pneumatic canopy seal so some sealing is taking place.) I hope the pneumatic canopy seal helps, because this airplane is very loud. I even decided to buy "Mutt Muffs" for my dog. And for humans, I think noise canceling headsets are a must. Regards John Richardson _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Douglas Brunner Sent: Thursday, March 20, 2008 1:00 PM To: lml@lancaironline.net Subject: [LML] Re: Lifting the Legacy Canopy John, Looks like a nice solution. How do you plan to adapt the spring to the canopy seal? How much extra noise is there without the canopy seal? Doug ----- Original Message ----- From: John Richardson To: lml@lancaironline.net Sent: Wednesday, March 19, 2008 1:55 PM Subject: [LML] Re: Lifting the Legacy Canopy Here's another approach to lifting the Legacy canopy. There is no external handle. Instead, leaf springs are mounted inside the edge of the canopy on either side near the lateral guide blocks (see first picture). When the canopy is lowered, the leaf springs contact the fuselage keeping the canopy up about .75 inch (picture 2). The dimensions and strength of the leaf springs are such that when the canopy is lowered, the canopy latch can just engage. When you lock the canopy down, the springs collapse (picture 3). When you open the canopy latch, spring pressure pops the canopy up about .75 inch (picture 4). I have not installed the pneumatic canopy seal yet so there could be some interference. I've been flying with this spring arrangement for about 2 months now and it seems to work well. I'd appreciate any feedback the group may have on possible improvements or obvious drawbacks. Regards John Richardson Spokane WA N16DX _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bill Bradburry Sent: Friday, March 14, 2008 7:49 PM To: lml@lancaironline.net Subject: [LML] Lifting the Legacy Canopy Does anyone have any suggestions as to how to install a handle or otherwise to facilitate the raising of the Legacy canopy? It is very difficult to get it to come up the first inch or so because there is no place to get a hold on it. Pictures would be nice! Bill B _____ -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html ------=_NextPart_000_002D_01C88CBD.7BC27BF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

To Doug Brunner and others on the = LML

 

Regarding my canopy lift spring = idea, I think it’s going to be OK with the pneumatic canopy seal since = that seal is attached to the side of the fuselage, not the canopy,  and = inflates mainly outward (in the aft area near where the spring is located).  = The spring is attached to the canopy and with the canopy closed, the spring = is squashed flat and does not overlap the seal.  But like I said earlier, I = haven’t installed the seal kit yet, so I don’t really know.  =

 

Regarding noise in the cockpit = during flight without the canopy seal…..yes, it is very loud!!!.  =  However, I think most of the noise is caused by engine noise, exhaust noise, and = other vibrations being conducted by the rigid carbon fiber airframe.  I = have no interior panels.  I do not hear much “air” noise.  = (I have installed temporary foam rubber strips in place of the pneumatic = canopy seal so some sealing is taking place.)  I hope the pneumatic canopy = seal helps, because this airplane is very loud.  I even decided to buy = “Mutt Muffs” for my dog.  And for humans, I think noise canceling = headsets are a must. 

 

Regards

=

John = Richardson

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Douglas Brunner
Sent: Thursday, March 20, = 2008 1:00 PM
To: = lml@lancaironline.net
Subject: [LML] Re: = Lifting the Legacy Canopy

 

John,

 

Looks like a nice = solution.

 

How do you plan to adapt the spring to the canopy = seal?

 

How much extra noise is there without the canopy = seal?

 

Doug

----- Original Message ----- =

Sent: = Wednesday, March 19, 2008 1:55 PM

Subject: [LML] = Re: Lifting the Legacy Canopy

 

Here's another approach to lifting the Legacy = canopy.  There is no external handle.  Instead, leaf springs are mounted = inside the edge of the canopy on either side near the lateral guide blocks (see = first picture).  When the canopy is lowered, the leaf springs contact the fuselage keeping the canopy up about .75 inch (picture 2).  The = dimensions and strength of the leaf springs are such that when the canopy is = lowered, the canopy latch can just engage.  When you lock the canopy down, the = springs collapse (picture 3).  When you open the canopy latch, spring = pressure pops the canopy up about .75 inch (picture 4).  =

 

I have not installed the pneumatic canopy = seal yet so there could be some interference. I've been flying with this spring arrangement for about 2 months now and it seems to work well.  I'd = appreciate any feedback the group may have on possible improvements or obvious drawbacks. 

 

Regards

John Richardson

Spokane WA

N16DX

 

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Bill Bradburry
Sent: Friday, March 14, = 2008 7:49 PM
To: = lml@lancaironline.net
Subject: [LML] Lifting = the Legacy Canopy

 

 Does anyone have any suggestions as to how to install a = handle or otherwise to facilitate the raising of the Legacy canopy?  It is = very difficult to get it to come up the first inch or so because there is no = place to get a hold on it.

 

Pictures would be nice!

 

Bill B

--
For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html

------=_NextPart_000_002D_01C88CBD.7BC27BF0--