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iron-clad rules for the pronunciation
of vowels and combinations of vowels.
Several consonants, in combination or
singly, also can be pronounced more
than one way.
The English language has come a
long way from its Latin roots wherein
pronunciation has very strong rules,
but aviation makes tough demands on
English. One member of the ASRS staff
suggested using the Klingon language,
which has no vowels; another suggested
creating more vowels just for
naming navigational fixes!
The FAA’s National Flight
Data Center is in charge of
naming airspace fixes. When
a new fix is needed by an
FAA region or facility, a
request is made with a
choice of names. The center
will then check to see that
the proposed name: a) is
pronounceable, b) does not
duplicate another spelling, c)
is not profane in several of
the major languages, and d)
is unique to the entire world.
Then the new fix is put into
use.
Would you like a little bit
of immortality? Captain
Cortlandt L. Dickinson,
retired American Airlines
Captain, was at a meeting
when the route system from
the West Coast of the United
States to Hawaii was being
revised. He claims that he
said, “Why don’t you name
one of the fixes after me?”
They did, as CORTT.
Captain D.E. Ehmann,
retired Vice President of
Flight Operations with
American Airlines, is also
immortalized in a missed
approach holding fix named
EHMAN, at Buffalo, NY.
A study of the fixes,
airport names, and VORs will
provide names of celebrities
and interesting geographical
points to all who take the
time to look. Compare your
aeronautical chart with the
atlas that you all carry and
learn some of the local points
of interest while you are
looking out the window. ■
Issue Number 7 7
that they want to go to
Farmington, NM, (FMN) not
Farmington, MO, (FAM) or
Farmington, MN, (FGT). Flight crews
must be very careful when they type a
fix into their FMCs so that they go to
CLEAT, MD, not CLETE, OH.
There are many examples similar to
CLEAT/CLETE—such as AANTS/
ANNTS, BRIJJ/BRIDG, etc. If you’d like
to play a little game, go to FAA Publication
7350.6, “Location Identifiers,”
and turn to the Airspace fixes section.
See how many pairs you can find in
one minute. You’ll find many are
listed consecutively, such as DUMPE/
DUMPI.
Entering the Fix
If there are any questions in your
mind, whether you are a pilot or a
controller, you must ask immediately
to clarify the situation, of course. We
also have a few suggestions to help
you avoid Waypoint Identifier Woes:
" Pilots flying the aircraft with the
new navigation systems should
have their charts on hand at all
times to ensure that spelling mistakes
are not made.
" Charts and flight plans should be
consulted often to ensure that direct
routings seem reasonable, and
that the map presentation has no
strange “spikes” or turns.
Common sense precautions and special
care will prevent any of the navigation
errors we’ve discussed. _
5, 4, 3…
These problems are not restricted to
five letter fixes. They also crop up in
three letter VORs, as evidenced in this
report:
✍ “The original flight plan from SFODFW
included Las Vegas, NM, as part of
the filed route. A re-file was requested airborne,
“Direct Beatty [BTY], Las Vegas,
[LVS] Wichita Falls [SPS], on course.” We
were requesting BTY, LVS and SPS VORs.
LAX Center cleared us “direct LIDAT,
Beatty, Las Vegas, Wichita Falls.” Just
east of BTY VOR, LAX Center gave us a
right turn to a 180 degree heading and
said that we were getting close to a hot
restricted area. LAX Center said that our
clearance was over Las Vegas [LAS],
NV…I realize that there are many navigation
fixes around the world that have
the same name…” (# 81977)
The reporter is right. There are
many fixes with the same name, but
no five-letter airspace fixes have the
same name, only VORs and NDBs. For
example, VORs with the same name
but different letter designators include
Springfield (SGF), MO, and Springfield
(SPI), IL; Las Vegas (LAS), NV, and Las
Vegas (LVS), NM; Bradford (BDF), IL,
and Bradford (BFD), PA; and Danville
(DNV), IL, and Danville (DAN), VA.
All these examples are in United States
　
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