[Acro] Fwd: ADS-B and aerobatics

Dj Molny djmolny at gmail.com
Tue May 10 16:13:29 MST 2016


Hi Jeff.

Thanks for the follow-up on this.

I've brought this issue to the attention of the IAC Government Relations
team and they will take a look at it as well.

Regards,
DJ
On May 10, 2016 4:46 PM, "Jeffery Poehlmann via Acro" <
acro at aerobaticsweb.org> wrote:

> I presented Mike Neuman's observations regarding ADS-B and aerobatic
> flight to Mike Collins, author of the AOPA article that was referenced in
> Neuman's email.  His reply appears below.  Sounds as though for the time
> being, probably better to not request a compliance report.  Hopefully, this
> issue will be addressed, even if the answer from the FAA is that it doesn't
> matter.  Somehow, though, I'm having a hard time imagining that will be the
> outcome.
>
> Jeffery Poehlmann
> IAC Ch 107  Austin  TX
>
>
> ---------- Forwarded message ----------
> From: Collins, Mike <Mike.Collins at aopa.org>
> Date: Tue, May 10, 2016 at 4:20 PM
> Subject: RE: ADS-B and aerobatics
> To: Jeffery Poehlmann <jeffery at texas.net>
>
>
> Hi, Jeffery—
>
>
>
> Thanks for the note. That’s a very interesting question, I certainly can
> see where conducting aerobatics could generate the “egregious kinematics”
> error—as well as potentially masking the GPS antenna intermittently, not to
> mention how ADS-B would ascribe trend vectors to aerobatic flight. I’m not
> aware of concerns previously expressed about aerobatics and ADS-B.
>
>
>
> Such errors would fall under the broad category of “non-performing
> emitters,” basically ADS-B Out that isn’t working properly. Wish I had
> received your email a week ago, just had a meeting with the FAA last week
> about NPEs and would have brought up the scenario.
>
>
>
> As I understand the current Performance Monitor system (FAA renamed it
> from “Compliance Monitor”), research into ADS-B “events” like egregious
> kinematic error **should** reveal, in a case like this, an aircraft
> capable of high-performance aerobatics and should not be a problem. I will
> look further into this situation. However, I would strongly suggest **not**
> requesting an ADS-B performance report on an aerobatic flight, because of
> its high likelihood of generating misleading data.
>
>
>
> Best regards,
>
>
>
> Mike
>
>
>
>
>
> *From:* jlpoehlmann at gmail.com [mailto:jlpoehlmann at gmail.com] *On Behalf
> Of *Jeffery Poehlmann
> *Sent:* Tuesday, May 10, 2016 1:38 PM
> *To:* Collins, Mike
> *Subject:* ADS-B and aerobatics
>
>
>
> Mike,
>
>
>
> I recently read about a fellow that installed ADS-B Out in his Extra 300
> aerobatic airplane, went out and flew aerobatics, and then requested a
> compliance report from the FAA to see how his system performed.  As
> expected, there were numerous non-compliances noted on the report, most
> likely attributed to "egregious kinematic" errors.  This is obviously going
> to be an issue for the aerobatic community.
>
>
>
> Do you have any information or have you heard of any concerns that have
> been formally expressed regarding this aspect of ADS-B implementation?
>
>
>
> Regards,
>
>
>
> Jeffery Poehlmann
>
> Austin  TX
>
>
> _______________________________________________
> Acro mailing list
> Acro at aerobaticsweb.org
> http://aerobaticsweb.org/cgi-bin/mailman/listinfo/acro
>
>
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