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Old February 21st 17, 01:01 AM posted to rec.aviation.soaring
kinsell
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Posts: 546
Default Can ADS-B provide position information for Search and Rescue?


I see flights on 16 different days going back to July of last year for
your ship (I have an Enterprise account).

Then if I log out of my account, I see what you saw, just one old
flight. It says registered users see 4 months of history. Don't know
why it would show you one old flight if you're not registered. Must be
a bug.




On 02/20/2017 04:56 PM, Eric Greenwell wrote:
I just looked up my Phoenix N42EJ, which has flown about 400 hours with
ADSB in the last 3 years, including a flight from Florida. Flightaware
had one flight track for me, and that one was in Dec 2014.

Sarah wrote on 2/20/2017 2:37 PM:
Just for the record, I did look up my N number on FlightAware. Turns
out I flew a straight out flight KLAF - KAZO, 233 KM at 257 KPH ! Not
bad! Must be a record!

Just kidding - someone have misregistered their N-number.

I've found FlightAware pretty unreliable for VFR flights, even close
to a metro class B.



On Sunday, February 19, 2017 at 11:08:38 PM UTC-6, kinsell wrote:
On 02/18/2017 10:44 AM, Dave Nadler wrote:
On Tuesday, February 14, 2017 at 10:30:57 PM UTC-5, Paul Villinski
wrote:
Wondering if ADS-B equipped aircraft have any advantage should they
need search and rescue, given that they broadcast their ID and
coordinates.

1) ADS-B ground stations logging data would need to receive ADS-B down
to near ground level to get close to the crash site. A glider can
travel
a long distance from the altitudes mentioned as ground-station receive
floor in this thread.

I think people don't appreciate how extensive the FlightAware network
really is. I've tracked traffic down to landing, and then taxiing back
to their hangar from 30 miles away. Would be interesting if Sarah went
to flightaware.com, put in her N number, and saw what data the system
has on her flights.

The system even has some capability of tracking Mode S targets with
triangulation, although with reduced accuracy and coverage.



2) FLARM can assist in SAR (and has done a number of times). This
requires
other gliders flying in FLARM-range of the crash, otherwise the search
area will not be narrowed to a helpful size. And the FLARM log files
need
to be promptly recovered from gliders in the area and forwarded to
FLARM
for analysis.