On May 8, 10:26 am, "RST Engineering" wrote:
WEll, Ernest, to be brutally honest with you, no it doesn't help much. You
simply took each individual segment of the gobbledygook FAR and drew a
picture for each one of them. That's fine; what I'm looking for (and what
Stuart Fields is VERY close to doing) is a composite graphic of ALL the
horizontal requirements onto one graph and ALL the vertical requirements
onto another.

But thanks for trying.

Jim

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

"Ernest Christley" wrote in message

...

If anybody has a point to a clear post of the brightness requirements,
I'd sure be interested in seeing it. Sarangen's article on wingtip
lights is about the best I can find, but he duplicates the alpha graph
and says nothing about the theta graph.

Jim


FAR 23.1391 specifies theta (from dead ahead in horizontal plane) and
23.1393 specifies alpha (above or below horizontal plane). Therefore
the first table is for alpha=0. The second table is simply a scale
factor to figure out the alpha-distribution for each theta. This is
why the first table is given in Candles and the second table has no
units with the max value of 1.0. Basically, to figure out the minimum
intensity for a given theta and alpha, multiply the two numbers from
each table. One should be able to create a 3D plot from this.