Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Fri, 05 Mar 2004 16:12:17 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m14.mx.aol.com ([64.12.138.204] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3065455 for lml@lancaironline.net; Fri, 05 Mar 2004 16:00:21 -0500 Received: from Sky2high@aol.com by imo-m14.mx.aol.com (mail_out_v37.4.) id q.5a.286762ab (4328) for ; Fri, 5 Mar 2004 16:00:18 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <5a.286762ab.2d7a4462@aol.com> X-Original-Date: Fri, 5 Mar 2004 16:00:18 EST Subject: Further to Airlites, 100W MR16 bulbs and Covers for open reflectors X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1078520418" X-Mailer: 9.0 for Windows sub 4042 -------------------------------1078520418 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit 1. I have switched from a projector lamp mount bolted up to left gear leg (used for 6 years) to Tim Ong's Airlite, a much prettier solution that can be aimed in vertical and horizontal planes. See _http://www.leadingedgeaircraft.com/_ (http://www.leadingedgeaircraft.com/) 2. The problem is that 100W halogen lights have no cover while the supplied 75W does. For many of us, lacking the eyes of a 20 year old, 100W is a minimum to provided and adequate amount of lumens. At the suggestion of another LML'r, I went to Edmund Optics: _http://www.edmundoptics.com//IOD/DisplayProduct.cfm?productid=2402_ (http://www.edmundoptics.com//IOD/DisplayProduct.cfm?productid=2402) for a float glass window 49mm diameter x 1.5mm thick (1.93" x .06") that costs about $15 (part no. 30971). After several test flights and taxi operations, the cover is still whole. Note that the next size, 51.5 mm (2.03") is a bit too large. Also, Shannon lost a screw-on reflector holder and I did note that because of the cover, the "cap" is not snug even though pressure is applied by the o-ring. I did apply a drop of Loctite 242 to the threads. My original 6-year-old bulb is still operating and I expect it to continue to do so. 3. Bulb choice depends on one's needs. I use the Lancair designed cowl mounted GE4509 100W to light the runway during approach and the wide angle Radiac EMC 100W "flood" to light the runway outside the pilots window after the flare. Marshall's special GE 100W bulb is more of a spot light than the EMC and, if one mounts Airlites on both gear legs, the spot on the right leg might provide optimal light during approach and a "flood" on the left for touch-down and taxi. Or, one could mount 4 lights as Shannon did so that the whole county can be illuminated, thus giving the pilot more ground contact (landing) options. Scott Krueger AKA Grayhawk Sky2high@aol.com II-P N92EX IO320 Aurora, IL (KARR) "...as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns - the ones we don't know we don't know." D. Rumsfeld -------------------------------1078520418 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

1. I have switched from a projector lamp mount bolted up to left=20= gear=20 leg (used for 6 years) to Tim Ong's Airlite, a much prettier solution t= hat=20 can be aimed in vertical and horizontal planes. See http://www.leadingedgeaircraft.= com/

2. The problem is that 100W halogen lights have no cover while the supp= lied=20 75W does. For many of us, lacking the eyes of a 20 year old, 100W is a= =20 minimum to provided and adequate amount of lumens. At the suggestion o= f=20 another LML'r, I went to Edmund Optics:

http://www.edmundoptics.com//IOD/DisplayProduct.cfm?productid=3D2402

for a float glass window 49mm diameter x 1.5mm thick (1.93" x .06") tha= t=20 costs about $15 (part no. 30971). After several test flights and taxi=20 operations, the cover is still whole. Note that the next size, 51.5 mm= =20 (2.03") is a bit too large. Also, Shannon lost a screw-on reflect= or=20 holder and I did note that because of the cover, the "cap" is not snug even=20 though pressure is applied by the o-ring. I did apply a drop of Loctit= e=20 242 to the threads. My original 6-year-old bulb is still operating and= I=20 expect it to continue to do so.

3. Bulb choice depends on one's needs. I use the Lancair designed= =20 cowl mounted GE4509 100W to light the runway during approach and the wide an= gle=20 Radiac EMC 100W "flood" to light the runway outside the pilots window after=20= the=20 flare. Marshall's special GE 100W bulb is more of a spot light th= an=20 the EMC and, if one mounts Airlites on both gear legs, the spot on the=20 right leg might provide optimal light during approach and a "flood" on the l= eft=20 for touch-down and taxi. Or, one could mount 4 lights as Shannon did s= o=20 that the whole county can be illuminated, thus giving the pilot more gr= ound=20 contact (landing) options.=20

Scott Krueger=20 AKA Grayhawk
Sky2high@aol.com
II-P N92EX IO320 Aurora, IL=20 (KARR)

"...as we know, there are known knowns; there are things we kn= ow=20 we know. We also know there are known unknowns; that is to say we know there= are=20 some things we do not know. But there are also unknown unknowns - the ones w= e=20 don't know we don't know." D. Rumsfeld

-------------------------------1078520418--