X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 11 Mar 2014 17:26:28 -0400 Message-ID: X-Original-Return-Path: Received: from qmta12.westchester.pa.mail.comcast.net ([76.96.59.227] verified) by logan.com (CommuniGate Pro SMTP 6.0.8) with ESMTP id 6769693 for lml@lancaironline.net; Tue, 11 Mar 2014 10:00:11 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.59.227; envelope-from=jmorgan1023@comcast.net Received: from omta10.westchester.pa.mail.comcast.net ([76.96.62.28]) by qmta12.westchester.pa.mail.comcast.net with comcast id cCLj1n0020cZkys5CDzcXk; Tue, 11 Mar 2014 13:59:36 +0000 Received: from [192.168.1.100] ([24.11.157.196]) by omta10.westchester.pa.mail.comcast.net with comcast id cDzb1n00o4EXR5U3WDzcxR; Tue, 11 Mar 2014 13:59:36 +0000 From: Jack Morgan Content-Type: multipart/alternative; boundary="Apple-Mail=_F6CFE505-D77A-4A59-8F5F-56F1A43B9FBA" X-Original-Message-Id: Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\)) Subject: IV P nose gear landing light X-Original-Date: Tue, 11 Mar 2014 09:59:34 -0400 References: X-Original-To: Lancair Mailing List In-Reply-To: X-Mailer: Apple Mail (2.1874) --Apple-Mail=_F6CFE505-D77A-4A59-8F5F-56F1A43B9FBA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 Hi Jay, The light supplied by Lancair in the later kits mounts on the original = nose gear fine. My kit was among the last few IV P=92s which had the new = heavier nose gear strut. The new strut is enough larger in diameter to = prevent the nose gear doors from closing with the Lancair supplied = light. If you have the earlier nose gear strut I suggest you look into the = original Lancair mounting set up. Mine also came with the =93Dolly Parton=94 cowl which has larger outlet = area so the light in the right side cooling inlet does not seem to cause = high cylinder temperatures in my case. Jack Morgan On Mar 11, 2014, at 6:01 AM, Lancair Mailing List = wrote: > From: "Jay Phillips" > Subject: IV-P Landing/Taxi Light Location > Date: March 10, 2014 at 7:31:25 AM EDT > To: lml@lancaironline.net >=20 >=20 > My IV-P has the landing/taxi light located in the right-hand cowling = inlet. > =20 > Since I=92ve owned the aircraft (2011) it=92s been a challenge to = manage the engine cooling during climb. My home field is at 5100=92. I = climb at 165 KIAS. By 13,000=92 or so my hottest CHT is 400 dF and I = have to reduce climb rate or level off for a few minutes to start the = CHT=92s back down. This situation occurs both winter and summer, = although it is worse on a hot day. > =20 > While training with Bob Jeffrey recently, he suggested I try removing = the landing light to see what effect that has on cooling. So I tried it = yesterday and, apparently, problem solved. After takeoff I climbed at = 165 KIAS all the way to 17,500=92 and my hottest CHT only got as high as = 392 dF. Indeed the CHTs had begun trending down. > =20 > So it seems that I need to find a new location to mount the = landing/taxi light. The obvious location, that doesn=92t involve cutting = composite, is the nose gear. Can anyone who has a IV-P with a light = mounted there provide guidance as to: type of light, mounting hardware, = clearance issues, and anything else I should be aware of? > =20 > Thanks, > =20 > Jay Phillips --Apple-Mail=_F6CFE505-D77A-4A59-8F5F-56F1A43B9FBA Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 Hi = Jay,

The light supplied by Lancair in the later kits = mounts on the original nose gear fine. My kit was among the last few IV = P=92s which had the new heavier nose gear strut. The new strut is enough = larger in diameter to prevent the nose gear doors from closing with the = Lancair supplied light.

If you have the earlier = nose gear strut I suggest you look into the original Lancair mounting = set up.

Mine also came with the =93Dolly = Parton=94 cowl which has larger outlet area so the light in the right = side cooling inlet does not seem to cause high cylinder temperatures in = my case.

Jack Morgan

On = Mar 11, 2014, at 6:01 AM, Lancair Mailing List <lml@lancaironline.net> = wrote:

From: "Jay Phillips" <jayph@fastairplane.net>
Subject: IV-P Landing/Taxi Light = Location
Date: March 10, 2014 at 7:31:25 AM = EDT


My IV-P has the landing/taxi light located in the right-hand = cowling inlet.
 
Since = I=92ve owned the aircraft (2011) it=92s been a challenge to manage the = engine cooling during climb. My home field is at 5100=92. I climb at 165 = KIAS. By 13,000=92 or so my hottest CHT is 400 dF and I have to reduce = climb rate or level off for a few minutes to start the CHT=92s back = down. This situation occurs both winter and summer, although it is worse = on a hot day.
 
While = training with Bob Jeffrey recently, he suggested I try removing the = landing light to see what effect that has on cooling. So I tried it = yesterday and, apparently, problem solved. After takeoff I climbed at = 165 KIAS all the way to 17,500=92 and my hottest CHT only got as high as = 392 dF. Indeed the CHTs had begun trending down.
 
So it seems that I need to find a = new location to mount the landing/taxi light. The obvious location, that = doesn=92t involve cutting composite, is the nose gear. Can anyone who = has a IV-P with a light mounted there provide guidance as to: type of = light, mounting hardware, clearance issues, and anything else I should = be aware of?
 
Thanks,
 
Jay = Phillips

= --Apple-Mail=_F6CFE505-D77A-4A59-8F5F-56F1A43B9FBA--