Thanks.

B.J.

http://forpilots.com/archive/rec.aviation.owning/27/msg27654.htm suggests a source for LED’s as a low power consumption lighting solution.

I have not personally built one of these, and suggest that that you verify it works in clear daylight (with both circling and straight in approaches) before making approaches in more adverse conditions. As always with the internet, there is a risk of misinformation, or mistake, such as when the author of the first posting I listed above suggests that for a 3 degree slope, the VASI indicators be placed 20 feet apart with every foot of height difference between the signs (which is correct according to my math) but then makes an error by suggesting “The panel most distant from the end of the runway should be one foot higher than the other two panels” which of course would give a downward slope instead of the required upward slope. As subsequent posts suggest, the correct placement of the most distant panel would be 1 foot lower than the closer two panels (for every 20 feet between the distant and near sets of panels) as you approach the VASI.

Looking elsewhere I saw someone suggest that a pair of VASI’s would be desirable to detect if one of his homemade ones were accidentally or deliberately dislodged by wind, critters, or vandals. While fences and good strong construction can help; to me, doing an approach at night, it would be nice to see two separate VASI lights sets, in agreement with each other. If they weren’t in agreement, I would probably divert to a commercial airport.