"George Patterson" wrote in message
news:Q5NIe.4$Im1.1@trndny02...
Morgans wrote:

I understand the concept, but have never seen the device. (lucky me, if
I
ever get to fly in something with one)

http://www.xflight.de/f16/pe_org_par_cec_idxlights.htm

Thanks, George.

I have seen a similar item for homebuilt airplanes (and maybe certified)

It worked off of a port on the top of the wing, and a port on the bottom.
It may be something I have to re-invent, one of these days.
--
Jim in NC