Comments on: High Altitude Enroute Charts

By: Javier Arceo

Javier Arceo — Wed, 13 Jul 2011 23:35:55 +0000

Ante todo cordiales saludos desde Venezuela.
Me parece decepcionante la actitud que existe en relación a este tema nadie busca mas que acercarse un poco a la realidad, pregunto, que puede hacer alguien con una carta de vuelo real si los aviones en vuelo (que en su mayoría vuelan a mas de fl180, osea, 18.000 pies) pueden ser secuestrados para muestra lo del 11 de septiembre, ademas, si alguien quiere realizar nuevamente tal azaña lo que haría seria invertir unos dolares y comprar las cartas de vuelo, aja que hay de seguro en ello, lo que si me parece decepcionante e incluso ofensivo tratarnos a todos de la misma manera, no soy un terrorista; por otro lado son unos ladrones por querer vender un material que primero es publico y segundo no es de su propiedad osea, no tienen copyright, es decir ladrones.
Por ultimo, y aludiendo a la persona que dice que fly simulatior tiene todas las rutas, amigo eso es falso, tendría que usted bajar los parches de actualización y todavía faltan, por otro lado y para culminar yo quiero volar con mis cartas y no con un gps por que a mi me aburre tal azaña (diría estupidez)por que prefiero vivir en los años 80 y volar de vor a vor o de nbd o lo que sea nadie me lo puede impedir.
PD. SON UNOS LADRONES QUE DECEPCIÓN. (No soy un niño soy mayorcito ya 37 años y palante).

By: jdr567

jdr567 — Wed, 29 Jun 2011 19:59:39 +0000

Love those old sectionals.

By: topomatt

topomatt — Wed, 26 Jan 2011 14:47:28 +0000

The source maps were digital, but not georeferenced. Since I knew the projection/datum of the source images, it was a simple matter of entering the coordinates of several points from the maps into the GIS program I was using (GlobalMapper). GM was then able to transform the image into the Projection that Google Earth knows.

By: Luc

Luc — Wed, 26 Jan 2011 13:48:51 +0000

When you mentionned that you “Extracted the images and manually georeferenced them”, how did you do that, using a paper map finding each lat/lon corner and orientation ?

By: Erik

Erik — Fri, 23 Jul 2010 21:35:12 +0000

Any idea how to get the iPad to load this thing?
Thanks,
Erik

By: topomatt

topomatt — Tue, 15 Jun 2010 15:49:02 +0000

I've put most of these charts online, including the Low Alt IFR charts. You can download them from here. NOTE, these are NOT CURRENT. http://docs.google.com/leaf?id=0ByaNOq-lg0Y8MzcyYzUyOGQtOTQ3MC00NTdiLTgwYWQtNDU3NjE0Nzk2OWI5&hl=en

By: rtavk3

rtavk3 — Tue, 15 Jun 2010 05:57:05 +0000

Hey, topomatt very nice work. I was trying to use the Low Alt IFR enroutes for a moving map with weather overlay and was about to undertake the transformation of my weather data to this form. Do you know if the spatial reference information is the same for the Low Alt Ifr charts? Also I am a little new but was going to use “http://mathworld.wolfram.com/LambertConformalConicProjection.html” as a jumping off point does this seem reasonable to you? Any help would be appreciated! Thanks

By: topomatt

topomatt — Sat, 15 May 2010 02:35:22 +0000

I started with the PDFs. Extracted the images and manually georeferenced them.

By: plynkus

plynkus — Fri, 14 May 2010 19:42:36 +0000

Nice work on these! Were you using NACO’s PDF downloadable charts or is there something like their digital visual charts (geo-referenced TIFFs, I believe) available?

By: topomatt

topomatt — Tue, 16 Mar 2010 02:55:02 +0000

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic (Format:Deg-Min-Sec:
Standard_Parallel: 45-00-00.0N
Standard_Parallel: 33-00-00.0N
Longitude_of_Central_Meridian: 095-00-00W
Latitude_of_Projection_Origin: 39-00-00N
False_Easting: 0.000000
False_Northing: 0.000000
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80

But they all had to be converted to Geographic Projection for Google Earth

By: wally

wally — Sun, 14 Mar 2010 23:30:44 +0000

What is the map projection for these High Alt E/R Charts? I’m guessing Lamberts Conformal Conic with 33° & 45° N standard parallels. If so what is the central meridian?

By: topomatt

topomatt — Thu, 21 Jan 2010 01:54:59 +0000

I wanna low-alt IFR enroute.

If I could get 10 or 11 people to donate $5 each, I’d buy them and put them online. Or maybe someone already has them and can get them to me. Otherwise, it’s hard for me to justify the cost on my own.

By: chin

chin — Wed, 20 Jan 2010 21:00:13 +0000

I wanna low-alt IFR enroute.

By: topomatt

topomatt — Mon, 04 Jan 2010 21:31:46 +0000

I did get some of those charts way back when. But I don’t have them anymore and I wasn’t able to georeference them because they didn’t provide the projection information. But if anyone still has them, I could take another look at them.

By: scott s.

scott s. — Mon, 04 Jan 2010 21:00:21 +0000

topoMatt

In your aviation mapping did you ever get the DoD enroute chart set from NIMA back when the DAFIF was publicly available? I guess now it is a bit dated (30 Aug 2007 last issue).

By: topomatt

topomatt — Thu, 31 Dec 2009 19:27:58 +0000

Eric, you’re correct. The trick is getting them scanned. Easier to buy the digital maps from NACO than to track down a scanner big enough to scan them. The High Altitude Charts only set me back about $15.

The Low Altitude Charts are a bit more expensive. If someone already has the digital Low Alt Charts and is willing to send them my way, that would work also.

By: Eric Wolf

Eric Wolf — Thu, 31 Dec 2009 18:52:21 +0000

Many times, you can get outdated air nav charts for free at your local airport. I have a huge pile of sectionals that I got from the map library at a local University. There’s no sense in buying the real, up-to-date charts if you’re not actually using them to fly!