Greg Copeland wrote:
My memory was telling me that Farnsworth Lantern test was preferred to get
a waiver. Since that no longer seems possible, I'm looking for options
here. I read today that a Dvorine or AOC test is preferred. Can anyone
confirm that? Recommend another? Are these tests hard to find? What's
available in the Dallas? Obviously, I'd like to try to shop around some
of these tests without involving the FAA, before I have to use the light
gun test as a last resort.

I do suffer from a mild form of deuteranopia. Is there any statistics on
the number of pilots with this type of color blindness which have
successfully obtained their waiver/exemption? I remember reading, over a
year ago, some document from the FAA which gave some statistics, but I no
longer remember the break out.


Greg

When I took my physical for the Air Force eons ago I found out I had a
red/green deficiency. Never knew this as I'd worked with colored wiring
in my electronics biz for years with no problems. One of the tests I
took that day was the Farnsworth Lantern. I now have a First Class SODA
having passed the FAA signal lamp test. The SODA was originally a Third
Class but got upgraded. I stood out on the ramp at the FSDO with an
inspector who called the tower on a handheld. It was an overcast day
and the tower had the green shades pulled down (I have no idea why) The
white and green lights looked rather close in shade to me but different
enough to tell apart. Even now when flying at night, from a long
distance the green/white flash of an airport beacon is tough to tell
apart until I get closer - the green flash always looks darker though.