[NSRCA-discussion] APPARENT GEOMETRY (PARALLAXED VIEW)

Tue Apr 10 16:16:13 AKDT 2007

Then we need to have the LAAS system installed at our contest locations. . .

http://gps.faa.gov/Programs/LAAS/laas.htm

I think the entry fees for contests will go up a bit though. . .

On 4/10/07, J.Oddino <joddino at socal.rr.com> wrote:
> If you're talking about GPS, I found it doesn't like it when you go vertical
> or inverted.  Perhaps a new antenna system would work.
> I did find I flew parallel to the runway better than I would have thought
> and at the right distance.
>
> Jim O
>
>
> ----- Original Message -----
> From: "Fred Huber" <fhhuber at clearwire.net>
> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
> Sent: Tuesday, April 10, 2007 3:41 PM
> Subject: Re: [NSRCA-discussion] APPARENT GEOMETRY (PARALLAXED VIEW)
>
>
> > I have heard the recording from that can be fed to Realflight and your
> > entire flight replayed from any view the sim offers. (which means anywhere
> > you place a camera when editing the field in G3.5)
> >
> > You can download a "model" of Chip Hyde's Genisis E-conversion for
> > RealFlight G3.5 from the KnifeEdge Software site. (maker of the actual
> > simulator)  And there's info on making a photofield of your home flying
> > site.
> >
> > That leaves... waiting for someone to put the logger in thier plane and
> run
> > it through all the sequences.
> > (Not me.. I'd just give examples of how many downgrades you can get)
> >
> > ----- Original Message -----
> > From: "Keith Hoard" <khoard at gmail.com>
> > To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
> > Sent: Tuesday, April 10, 2007 5:08 PM
> > Subject: Re: [NSRCA-discussion] APPARENT GEOMETRY (PARALLAXED VIEW)
> >
> >
> > >I think this is what we all need. . .
> > >
> > > http://www.eagletreesystems.com/Plane/5.htm
> > >
> > >
> > >
> > > On 4/10/07, Ken Thompson <mrandmrst at comcast.net> wrote:
> > >>
> > >> You are correct Georgie, that is my most serious flaw...
> > >> ----- Original Message -----
> > >> From: george w. kennie
> > >> To: NSRCA Mailing List
> > >> Sent: Tuesday, April 10, 2007 4:53 PM
> > >> Subject: Re: [NSRCA-discussion] APPARENT GEOMETRY (PARALLAXED VIEW)
> > >>
> > >> Yeah, Ken. Especially if the wind is blowing IN.
> > >> G.
> > >>
> > >>
> > >> ----- Original Message -----
> > >> From: Ken Thompson
> > >> To: NSRCA Mailing List
> > >> Sent: Tuesday, April 10, 2007 7:36 AM
> > >> Subject: Re: [NSRCA-discussion] APPARENT GEOMETRY (PARALLAXED VIEW)
> > >>
> > >> Even vertical lines will appear to fall away from you, or so I've been
> > >> told...mine aren't that straight to begin with...
> > >> ----- Original Message -----
> > >> From: Ed Alt
> > >> To: NSRCA Mailing List
> > >> Sent: Tuesday, April 10, 2007 6:04 AM
> > >> Subject: Re: [NSRCA-discussion] APPARENT GEOMETRY (PARALLAXED VIEW)
> > >>
> > >> And all the lines will bend and not appear straight,  Hey, I do that
> > >> already!
> > >>
> > >> Ed
> > >> ----- Original Message -----
> > >> From: Fred Huber
> > >> To: NSRCA Mailing List
> > >> Sent: Monday, April 09, 2007 10:59 PM
> > >> Subject: Re: [NSRCA-discussion] APPARENT GEOMETRY (PARALLAXED VIEW)
> > >>
> > >> The responsibility of the pilot s to PERFORM the corret geometry
> despite
> > >> the
> > >> parallax view.
> > >>
> > >> The responsibility of the judge is to learn how the parallax will make
> > >> the
> > >> correctly flown maneuver look.
> > >>
> > >> About the only way I can think of to show the effects of parallax on a
> > >> correctly flown turnaround maneuver would be to film it from as close
> to
> > >> perpendicular to the flight path as possible, and at the judges'
> location
> > >> at
> > >> the same time. then play the tapes sumultaneously at a judging seminar.
> > >>
> > >> At the appx 45 to 55 deg observation angle of the judges station, a 45
> > >> deg
> > >> up/down line (half cuban) would appear steeper than what is actually
> > >> being
> > >> performed.  If it looks like a 45 from the judge's station (holding up
> a
> > >> 9th
> > >> gradeer's geometry class triangle), its too shallow.  The appearance of
> > >> 60
> > >> deg (same method) would be closer to actually being the 45 deg line.
> > >>
> > >> Note that if the pilot doesn't make use of the full box, the parallax
> > >> will
> > >> be reduced... and that's not downgradeable.
> > >>
> > >> Verticals should still look vertical.
> > >> ----- Original Message -----
> > >> From: rcmaster199 at aol.com
> > >> To: nsrca-discussion at lists.nsrca.org
> > >> Sent: Monday, April 09, 2007 10:11 PM
> > >> Subject: [NSRCA-discussion] APPARENT GEOMETRY (PARALLAXED VIEW)
> > >>
> > >> A question has been posted from an IMAC gentleman (who is trying to
> write
> > >> better IMAC rules) as to how Pattern people fly and judge skewed
> > >> appearance
> > >> of maneuvers at box ends or in center when tall maneuvers (Hourglass,
> > >> Vert
> > >> Sq 8, Rolling Ess, etc) are involved.
> > >>
> > >> Some of us have searched the book and found no wording written that
> > >> describes what the pilots' responsibilities and the judges'
> > >> responsibilities
> > >> are in the performance of the skewed apparent geometry. There is a
> > >> statement
> > >> in the Judges Training tape in regard to end maneuvers.... that these
> > >> will
> > >> appear different even when accurately flown. The oness is essentially
> on
> > >> the
> > >> judges to know how the True Geometry should appear when flown at an
> angle
> > >> to
> > >> the eye, and must not downgrade for Apparent or Parallaxed appearance
> > >> difference.
> > >>
> > >> Spoke with Don about this earlier today and we decided to present the
> > >> question to the group and get some conversation going. We should be
> > >> explicit
> > >> in the book regarding how such Apparent Geometry should be
> treated....ie-
> > >> what is the pilot's responsibility and what is the judge's. Description
> > >> improvements could be written over the next couple rule cycles.
> > >>
> > >> The pilot's responsibility may appear easy.... they simply need to fly
> > >> precise geometry per the book. True enough, BUT.....consider what is
> > >> actually flown, especially by the top guys, and what scores well. These
> > >> are
> > >> not necessarily as precise as one might think. The better pilots tend
> to
> > >> fly
> > >> purposely flawed maneuvers that give the impression of precision.
> > >>
> > >> MattK
> > >> ________________________________
> > >> AOL now offers free email to everyone. Find out more about what's free
> > >> from
> > >> AOL at AOL.com.
> > >>
> > >>
> > >> ________________________________
> > >>
> > >>
> > >> _______________________________________________
> > >> NSRCA-discussion mailing list
> > >> NSRCA-discussion at lists.nsrca.org
> > >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> > >>
> > >> ________________________________
> > >>
> > >>
> > >> No virus found in this incoming message.
> > >> Checked by AVG Free Edition.
> > >> Version: 7.5.446 / Virus Database: 268.18.26/752 - Release Date:
> 4/8/2007
> > >> 8:34 PM
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> ________________________________
> > >>
> > >>
> > >> _______________________________________________
> > >> NSRCA-discussion mailing list
> > >> NSRCA-discussion at lists.nsrca.org
> > >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> > >>
> > >>
> > >>
> > >> ________________________________
> > >>
> > >>
> > >> _______________________________________________
> > >> NSRCA-discussion mailing list
> > >> NSRCA-discussion at lists.nsrca.org
> > >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> > >>
> > >>
> > >>
> > >> ________________________________
> > >>
> > >>
> > >> _______________________________________________
> > >> NSRCA-discussion mailing list
> > >> NSRCA-discussion at lists.nsrca.org
> > >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> > >>
> > >>
> > >>
> > >> ________________________________
> > >>
> > >>
> > >> _______________________________________________
> > >> NSRCA-discussion mailing list
> > >> NSRCA-discussion at lists.nsrca.org
> > >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> > >>
> > >>
> > >> _______________________________________________
> > >> NSRCA-discussion mailing list
> > >> NSRCA-discussion at lists.nsrca.org
> > >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> > >>
> > >
> > >
> > > --
> > >
> > > Keith Hoard
> > > Collierville, TN
> > > khoard at gmail.com
> > > _______________________________________________
> > > NSRCA-discussion mailing list
> > > NSRCA-discussion at lists.nsrca.org
> > > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> > >
> > >
> > >
> > > --
> > > No virus found in this incoming message.
> > > Checked by AVG Free Edition.
> > > Version: 7.5.446 / Virus Database: 269.0.0/754 - Release Date: 4/9/2007
> > > 10:59 PM
> > >
> > >
> >
> > _______________________________________________
> > NSRCA-discussion mailing list
> > NSRCA-discussion at lists.nsrca.org
> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.5.446 / Virus Database: 269.0.0/754 - Release Date: 4/9/2007
> 10:59 PM
> >
> >
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>

-- 

Keith Hoard
Collierville, TN
khoard at gmail.com