18th January 14:17
Belfort's unreliable ASOS wind anemometer being taken out of service!
Belfort Instrumentation's unreliable cup and vane anemometer is being
taken off the ASOS (similar to AWOS) weather station and is being
replaced with a Vaisala sonic anemometer which has no moving parts.
You can read the FAA study and results here at:
The National Weather Service and Federal Aviation Administration
concluded that Belfort's problem prone anemometer yielded inaccurate
readings from time to time and froze up other times. The FAA needs
something much more reliable that offers trouble-free operation on the
ASOS aviation weather platform, so the Belfort wind anemometer is being
axed just like that inferior Belfort laser ceilometer which was retired
in the late 1990s. If the FAA is replacing Belfort's problem-prone
anemometer, why do you think the Wright Brothers relied on a Richard's
anemometer versus Belfort wind sensors? Belfort would have you believe
they provided wind sensors for the Wright Brothers but history (not
Belfort's fabled history) tells a very different story.
We laid the track on a smooth stretch of ground about one hundred feet
north of the new building. The biting cold wind made work difficult,
and we had to warm up frequently in our living room, where we had a
good fire in an improvised stove ready, J.T. Daniels, W.S. Dough and
A.D. Etheridge, members of Kill Devil Life Saving Station; W.C.
Brinkley of Manteo, and Johnny Moore, a boy from Nags Head, had
We had a "Richard" hand anemometer with which we measured the velocity
of the wind. Measurements made just before starting the first flight
showed velocities of 11 to 12 meters per second, or 24 to 27 miles per
hour. Measurements made just before the last flight gave between 9 and
10 meters per second. One made just after showed a little over 8
meters. The records of the Government Weather Bureau at Kitty Hawk gave
the velocity of the wind between the hours of 10:30 and 12 o'clock,
the time during which the four flights were made, as averaging 27 miles
at the time of the first flight and 24 miles at the of the last."
With a previously retired ceilometer and now the Belfort ASOS wind
anemometer being taken out of service, what does Belfort Instrumetnation
produce that the weather and airport aviation market wants. Surely it
isn't Belfort's Digiwx AWOS as they have sold approx two system per year
for the past 5 years dating back to year 2000. Does that sound like a
airport aviation product that the weather community is embracing?
Besides, the Digiwx AWOS has a cup and vane anemometer on it which is
supposedly made in China. Can you imagine? Belfort should contact Vaisala
for a sonic wind replacement anemometer to put on Digiwx AWOS.
Belfort Instrumentation is a dying outdated weather company. And it you
decide to buy Belfort with your dollars, you should seriously consider
what Belfort company namesake will be around to fix your Belfort wares.
And trust me, your Belfort wares will need fixing. A lot of fixing!