A couple of things, Stu. One, Part 25 has to do with transport category
aircraft. Two, the corresponding sections in Part 23 (light aircraft) are
what I was referring to when I mentioned "gobbledygook" in my original post.
My hit is that they gave this section to a newly graduated engineer with a
specialty in optics and (s)he wanted to show the boss how much a good
engineer can obfuscate matters.

A simple set of graphs would make things SO much easier to interpret.

Jim

--
"If you think you can, or think you can't, you're right."
--Henry Ford



"Stuart & Kathryn Fields" wrote in message
.. .

Jim: I found the following to have quite a bit of information regarding
nav lite intensities. FAR Part 25 sub part F and Sec. 25.1391 and beyond.


I hope this is of some use


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