X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 31 May 2012 13:09:54 -0400 Message-ID: X-Original-Return-Path: Received: from nm7-vm0.access.bullet.mail.sp2.yahoo.com ([98.139.44.116] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with SMTP id 5570887 for lml@lancaironline.net; Thu, 31 May 2012 13:02:26 -0400 Received-SPF: neutral receiver=logan.com; client-ip=98.139.44.116; envelope-from=ralphlove@stanfordalumni.org Received: from [98.139.44.97] by nm7.access.bullet.mail.sp2.yahoo.com with NNFMP; 31 May 2012 17:01:51 -0000 Received: from [98.139.44.83] by tm2.access.bullet.mail.sp2.yahoo.com with NNFMP; 31 May 2012 17:01:51 -0000 Received: from [127.0.0.1] by omp1020.access.mail.sp2.yahoo.com with NNFMP; 31 May 2012 17:01:51 -0000 X-Yahoo-Newman-Id: 472789.11994.bm@omp1020.access.mail.sp2.yahoo.com Received: (qmail 3966 invoked from network); 31 May 2012 17:01:51 -0000 X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: eym6etQVM1nmk1sQ33apoPgzhhzf_an8pciQnaz_H4DM0Xd fPWIk.LLKOVodKETXn5CQEywOQvzHcGFpKRTj7w4sYccjdcHGsQ5Q1g7Yhvj STmFFxHszVnNEbMZoQ_P.mPiHsXBhDtmyTmM6efFlfQAzyJBqcHvNr4corEu j21LyXlGseHHhzVNgbRikD.lE4y72sYuT6qumEwg_GUXm.FYv1pM0FdO6iU2 g0wJlfUt09HWNyUm_w9qHPqEMJN8MiG9aahCSxb.ut1Lofsvwr7LBoZA8blB yURCTRUNH_NpB6Sy66BEowG96lnhSKrqb0jhYbZd2RretvCoW04Tl9XgSQY_ prtjY9c71gOcSqjtdjcriGb7xqIXrUGPd1_7alEaQ086F3QbeSzU3UICj1Ib VmZKLAj79OxnVZ96HXIHwwmEzEsPr2OTQFgJl2YF6h370DhnaNXe1N5wvDhj mJPqr45pWBLnTIDSeGureLerr0v5SYXZ_Yvl4p1_Hhg3MJ.5P3o3oBDNa0vM 29hIXNvzARws.Ew-- X-Yahoo-SMTP: O0s9NnaswBCimploNHufwcJQi58B5NjMy.C2WAjfZjgmjJOd Received: from [10.0.1.2] (ralphlove@70.134.81.136 with plain) by smtp102.sbc.mail.gq1.yahoo.com with SMTP; 31 May 2012 10:01:50 -0700 PDT Subject: Re: [LML] Re: glare shield fan References: From: Ralph Love Content-Type: multipart/alternative; boundary=Apple-Mail-4DD9FFF0-8F6B-4432-92DB-605C1FB56507 X-Mailer: iPad Mail (9B206) In-Reply-To: X-Original-Message-Id: X-Original-Date: Thu, 31 May 2012 10:01:46 -0700 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-4DD9FFF0-8F6B-4432-92DB-605C1FB56507 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii I had to use the defrost last Sunday taking a lesson with Bob Jeffery in Be= nd, Oregon with periodic rain showers taking place. That's really the only t= ime I have needed it. It was needed while taxing. Ralph On May 31, 2012, at 5:06 AM, "John Schroeder" w= rote: > Larry - >=20 > That would be OK if you want to have the cabin heat up high enough to wher= e it would cool the stack and then defrost. The defrost pattern would probab= ly be only a couple of small circles before the flow cooled to where it was c= older than the windscreen. You really do need to defrost a wider portion of t= he windscreen, and only the plenum would do this. If one needs more defrost a= ir, a fan in the duct feeding the heat/defrost valve would be one solution. >=20 > Question for all on this list: When has anyone had to use defrost while fl= ying their Lancair? >=20 > IMHO there are not many :-)) >=20 > Cheers, >=20 > John >=20 >=20 > On Wed, 30 May 2012 16:05:22 -0400, wrote: >=20 >=20 > Question=20 > Wouldn't putting these fans in blowing up help with the defrost. It seems= that at OSH I was talking to a 360 guy that did this with great results. T= his is what I have been planning on using instead of the defrost plenum that= the legacy is design with. Any thoughts?=20 >=20 > Thanks=20 > LarryE >=20 >=20 >=20 > From: "John Schroeder" =20 > To: lml@lancaironline.net > Date: 05/30/2012 12:05 PM > Subject: [LML] Re: glare shield fan > Sent by: "Lancair Mailing List" >=20 >=20 >=20 >=20 > Addendum: >=20 > The bezels on our avionics boxes with this fan setup are cool to the =20 > touch. I believe that it is best to blow air down from the glare shield =20= > vents, rather than up. We don't notice any heat increase on our feet. >=20 > The fans noted below can also be had in 24 volts. I believe the mfg part #= =20 > is 3324 >=20 > Cheers, >=20 > John >=20 >=20 > On Wed, 30 May 2012 11:59:14 -0400, John Schroeder =20 > wrote: >=20 > > Dan - > > > > We have two fans mounted on the glare shield that suck air down from the= =20 > > cabin air vents and over the avionics stack. We had one before but =20 > > decided to add the second one because the stack avionics were still =20 > > running hotter that we felt was comfortable. They are small "muffin" =20= > > fans we got from Allied Electric. http://www.alliedelec.com/ Papst =20 > > Fan: Mfr's Part #: 3312 12V > > Allied Stk #: 70105405 > > > > John > > > > > > > > > > On Tue, 29 May 2012 13:09:41 -0400, Dan Ballin wrote= : > > > >> Anyone have experience thoughts on using a fan in the glare shield on > >> a Legacy to cool the avionics. I am concerned about pulling air out > >> towards the canopy and onto the plexiglass, but I believe this would > >> result in better cooling. I do have a avionics fan, but it still gets > >> mighty hot behind the panel. > >> > >> Thanks > >> Dan Ballin > >> N386DM > >> > >> -- > >> For archives and unsub =20 > >> http://mail.lancaironline.net:81/lists/lml/List.html > > > > -- > > For archives and unsub =20 > > http://mail.lancaironline.net:81/lists/lml/List.html >=20 > -- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm= l >=20 >=20 --Apple-Mail-4DD9FFF0-8F6B-4432-92DB-605C1FB56507 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=utf-8
 I had to use the defrost last Sunday taking a lesson with Bob Jeffery in Bend, Oregon with periodic rain showers taking place.  That's really the only time I have needed it. It was needed while taxing.
Ralph

On May 31, 2012, at 5:06 AM, "John Schroeder" <jgschroeder2@windstream.net> wrote:

Larry -

That would be OK if you want to have the cabin heat up high enough to where it would cool the stack and then defrost. The defrost pattern would probably be only a couple of small circles before the flow cooled to where it was colder than the windscreen. You really do need to defrost a wider portion of the windscreen, and only the plenum would do this. If one needs more defrost air, a fan in the duct feeding the heat/defrost valve would be one solution.

Question for all on this list: When has anyone had to use defrost while flying their Lancair?

IMHO there are not many :-))

Cheers,

John


On Wed, 30 May 2012 16:05:22 -0400, <larry.eversmeyer@faa.gov> wrote:


Question
Wouldn't putting these fans in blowing up help with the defrost.  It seems that at OSH I was talking to a 360 guy that did this with great results.  This is what I have been planning on using instead of the defrost plenum that the legacy is design with.  Any thoughts?

Thanks
LarryE


From: "John Schroeder" <jgschroeder2@windstream.net>
To: lml@lancaironline.net
Date: 05/30/2012 12:05 PM
Subject: [LML] Re: glare shield fan
Sent by: "Lancair Mailing List" <lml@lancaironline.net>




Addendum:

The bezels on our avionics boxes with this fan setup are cool to the  
touch. I believe that it is best to blow air down from the glare shield  
vents, rather than up. We don't notice any heat increase on our feet.

The fans noted below can also be had in 24 volts. I believe the mfg part #  
is 3324

Cheers,

John


On Wed, 30 May 2012 11:59:14 -0400, John Schroeder  
<jgschroeder2@windstream.net> wrote:

> Dan -
>
> We have two fans mounted on the glare shield that suck air down from the  
> cabin air vents and over the avionics stack. We had one before but  
> decided to add the second one because the stack avionics were still  
> running hotter that we felt was comfortable. They are small "muffin"  
> fans we got from Allied Electric. http://www.alliedelec.com/  Papst  
> Fan:  Mfr's Part #: 3312 12V
> Allied Stk #: 70105405
>
> John
>
>
>
>
> On Tue, 29 May 2012 13:09:41 -0400, Dan Ballin <dballin@gmail.com> wrote:
>
>> Anyone have experience thoughts on using a fan in the glare shield on
>> a Legacy to cool the avionics.  I am concerned about pulling air out
>> towards the canopy and onto the plexiglass, but I believe this would
>> result in better cooling.  I do have a avionics fan, but it still gets
>> mighty hot behind the panel.
>>
>> Thanks
>> Dan Ballin
>> N386DM
>>
>> --
>> For archives and unsub  
>> http://mail.lancaironline.net:81/lists/lml/List.html
>
> --
> For archives and unsub  
> http://mail.lancaironline.net:81/lists/lml/List.html

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

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