On Wednesday, August 19, 2015 at 4:44:32 PM UTC+3, David Kinsell wrote:
On Tue, 18 Aug 2015 22:45:18 -0700, jfitch wrote:

On Tuesday, August 18, 2015 at 8:45:12 PM UTC-7, George Haeh wrote:
I have been slogging through the some 220 responses and came across a
response from the NTSB:

http://www.regulations.gov/contentStrea mer?documentId=FAA-2015-2147-
0137&attachmentNumber=1&disposition =attachment&contentType=pdf

"our main concern was to ensure that gliders are detectable by an
aircraft equipped with a traffic alert and collision avoidance system
(TCAS)"

Gliders are already kept well away from air carriers by Class B and C.

That makes the primary beneficiaries of the ANPRM private jet owners
able to afford TCAS - $30K to $200K before installation.

As long as they're transmitting ADS-B, anybody with PowerFLARM knows
exactly where they are from several miles away and can avoid.

At least some air carriers are not transmitting ADS-B as of this
writing. Southwest for example - none of their jets flying into and out
of Reno show up on PowerFlarm. Biz jets seem to have a higher install
rate than airlines.

So SouthWest isn't using their transponders these days?? Hope you report
that to FAA.

They of course have transponders, but only the most recent models of 737 have ADS-B.

Southwest still have quite a lot of -300 and -500 models which I believe will never be fitted with ADS-B. They will be retired by 2020.

The -700 and -800 models will be retrofitted with ADS-B by 2020. Some may have come with it from the factory (-800s?).