do jeffies, *you* made the statement that RDF -- as used by *you* in a fog off
the coast of Maine in a sailboat -- was accurate to 2*, or maybe 5*.

neither of which is even close to true. for all the reasons I laid out.

jeffies, *you* were talking about a sailboat, NOT a large ship at sea with
professional RDF equipment professionally installed professionally maintained
and professionally operated.

In addition, *you* failed to take appropriate account of the boat's movement.

In addition, *you* failed to understand that two bearings gives a total
potential error greater than the error of either

In addition, *you* failed to understand the Area of Potential Position is a
frickken AIR EE AH, not a point.

In addition, *you* failed to understand the difference between an area and a
point with jitter.

In addition, *you* failed to understand just what the chances are getting
within 2* with surperb equipment on solid land with zero atmospheric
disturbances (such as the fog you said you were in, or rain, or temp
variations, or sunspots, or time of year).

jeffies, you know nothing about the subject but a cookbook approach. you
generalized your cookbook recipe to a universal truth, and failed.

In addition, *you* failed even more so by not understanding just how far off
you were.

I never claimed I got that accuracy. I said I assumed my bearings were no
better than 5 degrees. I claimed goverment publications said two degrees.

From Bowditch, latest edition:
"In general, good radio bearings should not be in error by
more than two or three degrees for distances under 150
nautical miles."

Older versions of "Radio Navigation Aids - Pub. 117" and Bowditch had similar
comments. For instance, the 1943 edition of Bowditch:
"Barring unusual condition, the bearings ... may be considered accurate to 2
degrees"

Further, for using RDF for an approach, it doesn't matter is the accuracy is
somewhat worse, or if one bearing is not as good. When you're homeing in on
an
offshore light, such as Matinicus the error is rather meaningless.

Jaxie keeps talking about how two RDF bearings are needed for a position.
However, it can be done with only one. Jaxie has failed to describe that
method, because he has never actually used RDF on a boat.



"JAXAshby" wrote in message
...
jeffies and felton are too dumb to notice the rest of the ng now
understands
the limits of accuracy of RDF are one hell of a lot more than "2 degrees".

I think felton does, too, but he is trying to make friends with joony.

jeffies, thought, is hopeless.