REFLECTOR: Reflector Digest, Vol 93, Issue 8

Mon Dec 3 08:29:59 CST 2012

I'd love to get on the list to get a calendar for 2013...

Thanks!
Chad

On Mon, Dec 3, 2012 at 8:25 AM, <reflector-request at tvbf.org> wrote:

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> Today's Topics:
>
>    1. Re:  Velocity Calendar 2013 (Brett Ferrell)
>    2. Re:  GPS outage, no big deal (Brett Ferrell)
>    3. Re:  GPS outage, no big deal (Mark Magee)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 03 Dec 2012 08:14:37 -0500
> From: Brett Ferrell <reflector at velocityxl.com>
> To: reflector at tvbf.org
> Cc: Darrell & Nora Kufalk <kufalk at wi.rr.com>
> Subject: Re: REFLECTOR: Velocity Calendar 2013
> Message-ID:
>         <
> 1354540477.24498.140661161180233.57BAAC88 at webmail.messagingengine.com>
>
> Content-Type: text/plain; charset="utf-8"
>
> Darrell,
>
>
>
> Calendar submissions were very light, so it will be difficult to put
> together a quality offering.  I do still plan, over the next week or
> two, to try and pull together a new set of pictures for a 2013
> calendar.  However it will necessarily feature most of the same
> airplanes as this year's calendar, which is great for folks that like
> those planes, and I will use different pictures for sure...
>
>
>
> So... one last plea, if you have a quality picture (preferably
> 3,000-2,500 pixels square) of a Velocity, and have the rights to use it
> (it's not a paid photographer's work for which you do not have
> duplication permission), please forward it to me.  Again, I would
> prefer in-flight shots, but any good picture will be considered.
> Thanks!
>
> Brett
>
> --
>
> Brett Ferrell
>
> reflector at velocityxl.com
>
>
>
> On Sat, Dec 1, 2012, at 12:56 PM, Darrell & Nora Kufalk wrote:
>
> Brett,
>
> It?s December 1^st.  Any progress on the calendar or are we _OL this
> year?
>
> Darrell
>
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
> Behalf Of Brett Ferrell
> Sent: Friday, October 26, 2012 10:10 AM
> To: reflector
> Subject: Re: REFLECTOR: Velocity Calendar 2013
>
> Just a friendly reminder, since I haven't gotten anywhere near enough
> new pictures submitted for next year's calendar, that if you liked the
> calendar and want to have one next year, please submit (or encourage
> others to submit) your favorite pictures.  If you send them to me, I'll
> compile them and make the calendar available for order.
>
> Brett
>
> _______________________________________________
>
> To change your email address, visit
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>
>
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> References
>
> 1. http://www.tvbf.org/mailman/listinfo/reflector
> 2. http://www.tvbf.org/archives/velocity/maillist.html
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> ------------------------------
>
> Message: 2
> Date: Mon, 03 Dec 2012 08:19:07 -0500
> From: Brett Ferrell <reflector at velocityxl.com>
> To: reflector at tvbf.org
> Subject: Re: REFLECTOR: GPS outage, no big deal
> Message-ID:
>         <
> 1354540747.25311.140661161180649.79673F99 at webmail.messagingengine.com>
>
> Content-Type: text/plain; charset="us-ascii"
>
> It does, and we did have a instance where GPS was unavailable (it was
> not NOTAMed, and I could not get GPS on my iPad either) where the GRT
> dropped into "dead reckoning" mode.  It was much better than nothing,
> but it did wander significantly from our true position over the course
> of 1/2 an hour or so.  That could be installation error, but it's a
> real data point.  Regardless, it was a lot better than no location
> data.
>
>
>
> Brett
>
> --
>
> Brett Ferrell
>
> reflector at velocityxl.com
>
>
>
>
>
> On Mon, Dec 3, 2012, at 07:46 AM, Mark Magee wrote:
>
> On Dec 2, 2012, at 4:27 PM, Scott Derrick <[1]scott at tnstaafl.net>
> wrote:
>
>
>
> Mark,
>
>   I don't know what GR's INAV is, it's certainly not real Inertial
> Navigation!
>
>
>
> As I understand it Grand Rapids, and hopefully others have -Electronic-
>
> INAV: which is very accurate digital accelerometers on 3 axes that give
>
> better accuracy than the old mechanical accelerometers coupled to
>
> spinning gyros. Basically the AHRS that GR sells (I don't have one, and
>
> won't sell you one) is a stand alone box that if told where on earth it
>
> is, will calculate from 3 axis digital accelerometer data where on a 3D
>
> plane you move to; no external reference. It does cross check to GPS.
> As
>
> well you can install two of them for redundancy and they as we'll will
>
> cross check each other.
>
> GR sells this AHRS to the military and others for a wide array of
>
> applications (hopefully not the Iranians!).
>
> Basically you get better accuracy for around $2,500 USD as to what used
>
> to cost the Navy 1MM each for the Submarine fleet. I knew the engineer
> at
>
> NASA that owned the INAV package on the Space Shuttle fleet, he had a
>
> team of 6? folks whose full time job was to maintain the 3 INAV boxes
> in
>
> each Orbiter. This was mid 1980's, he said each box was 1MM USD's (x3
> for
>
> each bird). I had buddies that served on subs that had the same boxes,
>
> they said they would submerge off Point Loma (San Diego) and be
> submerged
>
> for 6 weeks. After 6 weeks of sub-surface maneuvering they would
> surface
>
> and take a Celestial shot and would normally be within 100 feet or less
>
> from where the INAV package said they were. That was 3MM USD's
> technology
>
> and a dedicated team of technicians to maintain. We can now get better
>
> data for around $2,500 USD's each. So buy two for cross checking and
>
> redundancy and if Uncle Sam wants to jam my NAV (GPS), to Hell with
> him:
>
>
>
> Damn The Torpedoes an Full Speed Ahead!
>
>
>
> I don't have to have your GPS inputs! My precious little boxes have all
>
> the data I need to get where I'm going, no external data required.
>
>
>
> Jam my NAV signal? In flight?
>
> I told you guys I am an activist on this.
>
>
>
> Scott, it is -better- than what we used to term -real- INAV. For
>
> fractions of a penny on the dollar.
>
>
>
>
>
> Mark B. Magee
>
> N34XL
>
> Sent from IPhone 4S
>
> _______________________________________________
>
> To change your email address, visit
>
> [2]http://www.tvbf.org/mailman/listinfo/reflector
>
>
>
> Visit the gallery!  www.tvbf.org/gallery
>
> user:pw = tvbf:jamaicangoose
>
> Check new archives: www.tvbf.org/pipermail
>
> Check old archives:
> [3]http://www.tvbf.org/archives/velocity/maillist.html
>
> References
>
> 1. mailto:scott at tnstaafl.net
> 2. http://www.tvbf.org/mailman/listinfo/reflector
> 3. http://www.tvbf.org/archives/velocity/maillist.html
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> ------------------------------
>
> Message: 3
> Date: Mon, 3 Dec 2012 08:23:40 -0600
> From: Mark Magee <edjonesbrady at gmail.com>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Cc: "reflector at tvbf.org" <reflector at tvbf.org>
> Subject: Re: REFLECTOR: GPS outage, no big deal
> Message-ID: <004E53B1-0C1E-4106-99B0-0C57A363F259 at gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Brett,
> Do you have one AHRS's or two?
>
> Mark B. Magee
> Sent from IPhone 4S
>
> On Dec 3, 2012, at 7:19 AM, Brett Ferrell <reflector at velocityxl.com>
> wrote:
>
> > It does, and we did have a instance where GPS was unavailable (it was
> not NOTAMed, and I could not get GPS on my iPad either) where the GRT
> dropped into "dead reckoning" mode.  It was much better than nothing, but
> it did wander significantly from our true position over the course of 1/2
> an hour or so.  That could be installation error, but it's a real data
> point.  Regardless, it was a lot better than no location data.
> >
> > Brett
> > --
> > Brett Ferrell
> > reflector at velocityxl.com
> >
> >
> > On Mon, Dec 3, 2012, at 07:46 AM, Mark Magee wrote:
> >> On Dec 2, 2012, at 4:27 PM, Scott Derrick <scott at tnstaafl.net> wrote:
> >>
> >> Mark,
> >>   I don't know what GR's INAV is, it's certainly not real Inertial
> Navigation!
> >>
> >> As I understand it Grand Rapids, and hopefully others have -Electronic-
> >> INAV: which is very accurate digital accelerometers on 3 axes that give
> >> better accuracy than the old mechanical accelerometers coupled to
> >> spinning gyros. Basically the AHRS that GR sells (I don't have one, and
> >> won't sell you one) is a stand alone box that if told where on earth it
> >> is, will calculate from 3 axis digital accelerometer data where on a 3D
> >> plane you move to; no external reference. It does cross check to GPS. As
> >> well you can install two of them for redundancy and they as we'll will
> >> cross check each other.
> >> GR sells this AHRS to the military and others for a wide array of
> >> applications (hopefully not the Iranians!).
> >> Basically you get better accuracy for around $2,500 USD as to what used
> >> to cost the Navy 1MM each for the Submarine fleet. I knew the engineer
> at
> >> NASA that owned the INAV package on the Space Shuttle fleet, he had a
> >> team of 6? folks whose full time job was to maintain the 3 INAV boxes in
> >> each Orbiter. This was mid 1980's, he said each box was 1MM USD's (x3
> for
> >> each bird). I had buddies that served on subs that had the same boxes,
> >> they said they would submerge off Point Loma (San Diego) and be
> submerged
> >> for 6 weeks. After 6 weeks of sub-surface maneuvering they would surface
> >> and take a Celestial shot and would normally be within 100 feet or less
> >> from where the INAV package said they were. That was 3MM USD's
> technology
> >> and a dedicated team of technicians to maintain. We can now get better
> >> data for around $2,500 USD's each. So buy two for cross checking and
> >> redundancy and if Uncle Sam wants to jam my NAV (GPS), to Hell with him:
> >>
> >> Damn The Torpedoes an Full Speed Ahead!
> >>
> >> I don't have to have your GPS inputs! My precious little boxes have all
> >> the data I need to get where I'm going, no external data required.
> >>
> >> Jam my NAV signal? In flight?
> >> I told you guys I am an activist on this.
> >>
> >> Scott, it is -better- than what we used to term -real- INAV. For
> >> fractions of a penny on the dollar.
> >>
> >>
> >> Mark B. Magee
> >> N34XL
> >> Sent from IPhone 4S
> >> _______________________________________________
> >> To change your email address, visit
> >> http://www.tvbf.org/mailman/listinfo/reflector
> >>
> >> Visit the gallery!  www.tvbf.org/gallery
> >> user:pw = tvbf:jamaicangoose
> >> Check new archives: www.tvbf.org/pipermail
> >> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
> > _______________________________________________
> > To change your email address, visit
> http://www.tvbf.org/mailman/listinfo/reflector
> >
> > Visit the gallery!  www.tvbf.org/gallery
> > user:pw = tvbf:jamaicangoose
> > Check new archives: www.tvbf.org/pipermail
> > Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
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>
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>
> End of Reflector Digest, Vol 93, Issue 8
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