On Aug 9, 7:56*am, Mike Schumann
wrote:
On 8/9/2010 8:43 AM, Steve Freeman wrote:

Curious about the use of Flarm in the US. Was told by another pilot
that the frequency used by Flarm is not approved for that category of
use in the US. Is that true? If it is, do they make units that use a
US approved frequency?

There is virtually no FLARM in the US. *It is unlikely to take off here,
as the biggest threats for mid-airs in the US are between powered
aircraft and gliders or other aircraft.

It's a chicken and egg situation. *FLARM is only interesting if everyone
equips. *No one is going to equip if they don't think that everyone else
will.

With ADS-B coming out, that is the way to go in the US. *If you buy an
ADS-B transceiver, not only will you see other ADS-B equipped aircraft,
but, if you are within range of an ADS-B ground station, you will also
see all Mode C/S transponder equipped aircraft that are visible to ATC.
* With 80-90% of GA aircraft in the US transponder equipped, this gives
an immediate benefit to anyone investing in ADS-B (assuming that they
have a ground station deployed in their area).

--
Mike Schumann

Mike,
Your points are all well taken. I realize that FLARM has never been
accepted in the US up to now, and we all know that ADS-B is coming in
2020 (although I thought there was a "glider" exemption), but with
that being said, would it make any sense for FLARM units to be
required for gliders competing in any of our nationals (or maybe even
in regionals)?

As you are aware, we've had several mid-airs between gliders in recent
years and perhaps if gliders had been equipped with FLARM units in a
nationals or in a regionals, some of these mid-airs might have been
prevented.....Just a thought!

Thanks - Renny