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Date: Thu, 27 May 2010 06:01:15 -0400
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Subject: Re: [LML] XeVision HID Xenon Lights
From: Colyn Case <colyncase@earthlink.net>
In-Reply-To: <list-4325894@logan.com>
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References: <list-4325894@logan.com>

Hi Denis,

I have xv-19's in my wingtips.  Haven't been able to fly with them yet =
but have done a lot of ground testing.
Issues to think about:
a) it's  very bright, esp the 50 watt, which is great.
b) without a lens, the vertically challenged reflector creates a narrow =
band vertically with an extremely sharp edge.
The edge is distracting.  That is one reason I also have a high wattage =
halogen on the nose wheel.
c) making a lens that matches the wing contour, and no fancy optics will =
spread the beam somewhat vertically.  That's probably a good thing.   It =
will be interesting to see when it flies again but it may work out just =
great.   I haven't looked into fancy lenses but it's hard to imagine one =
that throws a straight beam and is at the same time aerodynamically =
efficient.=20
d) if you haven't closed your tips yet, think about where the power =
supply and high voltage leads are going to run relative to any antennas =
out there. =20

I would recommend doing a mockup on the ground first and see what you =
think.
Obviously having a big fat parabolic lens would be great but it's hard =
to find a place for that on a IV let alone a IVPT.   Wing root?

Colyn


On May 25, 2010, at 4:13 PM, <dconkey@roadrunner.com> =
<dconkey@roadrunner.com> wrote:

> Does anyone have experience using these lighting systems.  =
Contemplating putting the XV-19 (compact kit) in the winglets of the =
Lancair IVPT we are rebuilding.  Link below:
>=20
> http://www.xevision.com/hid_aircraft_kits.html#top
>=20
> Anyone that has information or thoughts on using this system would be =
most appreciated.
>=20
> Thanks,
>=20
> Denis Conkey
> N750PJ
>=20
> --
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